Black Box PCM90A, PCM91, PCM82-C, PCM83-C, PCM84-C User Manual

Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com

CUSTOMER

SUPPORT

INFORMATION

JULY 1992

PCM90A

PCM91 PCM82-C PCM83-C PCM84-C

LinkUp 5294

DL5294 Firmware

5294

INK

RESET

CHANNEL/ERROR

IO FLT

RXC

TXC

RI/

SYN

DSR

DTR

CTS

RTS

RXD

TXD

DTE

DCE

SYS

CH SEL

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FEDERAL COMMUNICATIONS COMMISSION

AND

INDUSTRY CANADA

RADIO FREQUENCY INTERFERENCE STATEMENTS

This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of Industry Canada.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le brouillage radioélectrique publié par Industrie Canada.

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INSTRUCCIONES DE SEGURIDAD (Normas Oficiales Mexicanas Electrical Safety Statement)

1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado.

2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.

3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas.

4. Todas las instrucciones de operación y uso deben ser seguidas.

5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc..

6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean recomendados por el fabricante.

7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante.

8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser referido a personal de servicio calificado.

9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá, alfombra o superficie similar puede bloquea la ventilación, no se debe colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilación.

10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor.

11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato.

12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada.

13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.

14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante.

15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de energia.

16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo.

17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación.

18. Servicio por personal calificado deberá ser provisto cuando:

A: El cable de poder o el contacto ha sido dañado; u B: Objectos han caído o líquido ha sido derramado dentro del aparato; o C: El aparato ha sido expuesto a la lluvia; o D: El aparato parece no operar normalmente o muestra un cambio en su desempeño; o E: El aparato ha sido tirado o su cubierta ha sido dañada.

LINKUP 5294 WITH DL5294 FIRMWARE

TRADEMARKS USED IN THIS MANUAL

Apple®and Macintosh®are registered trademarks of Apple Computer, Inc. Centronics

is a registered trademark of Centronics Corporation.

COMPAQ

is a registered trademark of Compaq Computer Corporation.

Hewlett-Packard

, HP®, and LaserJet®are registered trademarks of Hewlett-Packard.

IBM

, AS/400®, and AT®are registered trademarks of International Business Machines.

Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.

LINKUP 5294 WITH DL5294 FIRMWARE

Contents

Chapter Page

1. Specifications .........................................................................................................................................8

2. Introduction .........................................................................................................................................9

3. Features and Applications .....................................................................................................................11

3.1 Display Emulation Support ......................................................................................................11

3.2 Printer Emulation Support.......................................................................................................15

3.3 Virtual Device Addressing ........................................................................................................18

3.4 User-Friendly Facilities..............................................................................................................20

3.5 File-Transfer Support ................................................................................................................21

3.6 Modify for 3174 Protocol..........................................................................................................22

3.7 Port Test and System Management Modes..............................................................................22

3.8 5251/5294/5394 Emulation.....................................................................................................23

3.9 Additional Features...................................................................................................................23

4. Hardware Overview................................................................................................................................24

4.1 Front Panel................................................................................................................................24

4.2 Front Panel Controls.................................................................................................................24

4.3 Channel Status Indicators ........................................................................................................25

4.4 System Status Indicators ...........................................................................................................26

4.5 Error Code Display....................................................................................................................26

4.6 Rear Panel ................................................................................................................................26

5. Electrical Characteristics .......................................................................................................................27

5.1 Power Specifications .................................................................................................................27

5.2 Cable Pin Requirements...........................................................................................................27

6. Installation .......................................................................................................................................29

6.1 Installing the LinkUp 5294 and the Configuration Terminal................................................29

6.1.1 Unpack the LinkUp 5294 ............................................................................................29

6.1.2 Install the LinkUp 5294 ...............................................................................................29

6.1.3 Set Up the Configuration Terminal ............................................................................30

6.1.4 Connect the Configuration Terminal .........................................................................30

6.1.5 Establish Communication............................................................................................30

6.1.6 Select a Device Type .....................................................................................................30

6.2 Accessing the LinkUp 5294 Configurator ...............................................................................31

6.3 Connecting Additional Local Terminals .................................................................................31

6.4 Connecting Remote Terminals ................................................................................................32

6.4.1 Line Configuration.......................................................................................................32

6.4.2 Modem Considerations................................................................................................32

LINKUP 5294 WITH DL5294 FIRMWARE

Contents (continued)

Chapter Page

6.5 Connecting Printers..................................................................................................................32

6.5.1 Local Printers................................................................................................................32

6.5.2 Remote Printers............................................................................................................33

6.5.3 Auxiliary Printers..........................................................................................................33

6.6 Connecting the LinkUp 5294 to the Host Computer.............................................................34

6.6.1 Requirements................................................................................................................35

6.6.2 Dual Host Installations.................................................................................................35

6.6.3 Establish Communication with the Host ....................................................................36

7. Operation .......................................................................................................................................37

7.1 Operating Requirements..........................................................................................................37

7.1.1 Cables and Connections ..............................................................................................37

7.1.2 System/3X Host............................................................................................................38

7.1.3 ASCII Terminal .............................................................................................................38

7.1.4 Personal Computers and Terminal Emulation Software ...........................................39

7.1.5 ASCII Printer ................................................................................................................39

7.1.6 Modems.........................................................................................................................39

7.1.7 Packet Network Terminal Node ..................................................................................39

7.2 Connect Mode...........................................................................................................................40

7.2.1 Sign-On Menu...............................................................................................................40

7.2.2 Menu Prompts and Parameters...................................................................................41

7.2.3 Editing Instructions......................................................................................................44

7.2.4 Error Messages..............................................................................................................44

7.3 Port Test Mode ..........................................................................................................................45

7.3.1 Port Test Mode Menu and Functions..........................................................................46

7.4 System Management Mode ......................................................................................................47

7.4.1 System Management Mode Menu and Functions ......................................................48

7.5 Configurator Mode ...................................................................................................................54

7.5.1 Help Messages During Configuration.........................................................................54

7.5.2 Consistency Checking ..................................................................................................54

7.5.3 Overridable Parameters ...............................................................................................55

7.5.4 Configurator Mode Commands ..................................................................................55

7.5.5 Configuration Procedures ...........................................................................................59

7.5.6 Synchronous Port Parameters .....................................................................................59

7.5.7 Asynchronous Port Parameters ...................................................................................61

7.5.8 Logical Unit Parameters for a Display.........................................................................65

7.5.9 Printer Logical Unit Parameters for a Printer or Auxiliary Printer ..........................70

7.5.10 Syntax Error Messages..................................................................................................73

7.5.11 Physical Configuration .................................................................................................73

7.6 Emulation Mode .......................................................................................................................74

7.7 Setup Mode ...............................................................................................................................74

LINKUP 5294 WITH DL5294 FIRMWARE

Contents (continued)

Chapter Page

8. Packet Network Access Applications.....................................................................................................76

8.1 Terminology ..............................................................................................................................76

8.2 Using the LinkUp 5294 with PDNs.........................................................................................77

8.3 Installation Considerations.......................................................................................................79

8.3.1 PAD Parameters............................................................................................................80

8.4 Special Operational Considerations ........................................................................................81

8.5 Other Special Considerations ..................................................................................................81

8.5.1 Screen Display Errors..................................................................................................81

8.5.2 Data Forwarding to the PAD........................................................................................81

9. Diagnostics .......................................................................................................................................82

9.1 On-Line Diagnostics..................................................................................................................82

9.1.1 Front-Panel Error Codes..............................................................................................82

9.1.2 Front-Panel Status Indicators.......................................................................................82

9.2 Off-Line Diagnostics .................................................................................................................85

9.2.1 Self Diagnostics.............................................................................................................85

9.2.2 LU and Port Assignment Status...................................................................................85

9.3 Finding and Identifying Problems ...........................................................................................86

10. Emulation Capabilities...........................................................................................................................89

10.1 5250 Display Emulation............................................................................................................89

10.2 5250 Keyboard Functions.........................................................................................................89

10.3 LinkUp 5294 Extended Keyboard Functions..........................................................................89

10.4 Printer Support: System vs. Local Copy...................................................................................89

11. Hardware and Software Requirements....................................................................................................93

11.1 ASCII Terminals ........................................................................................................................93

11.2 Personal Computers and Word Processors..............................................................................96

11.3 Auxiliary Attached ASCII Printers ...........................................................................................97

11.4 Asynchronous Modems.............................................................................................................99

APPENDIX A: EBCDIC/ASCII Translation Tables.....................................................................................100

APPENDIX B: IBM EBCDIC to ISO ASCII Translation Table ...................................................................117

APPENDIX C: Supported ASCII Devices.....................................................................................................118

APPENDIX D: System/36 Configuration Guide.........................................................................................122

D.1 Communications Line ............................................................................................................123

D.2 Remote Controller, Display Stations, and Printers ...............................................................128

D.3 Changing the Master Configuration Record.........................................................................133

APPENDIX E: System/38 Configuration Guide .........................................................................................136

LINKUP 5294 WITH DL5294 FIRMWARE

Contents (continued)

Chapter Page

APPENDIX F: Terminal Modules and ASCII Terminal Setups ..................................................................142

F.1 ACT5A Terminal Module - Microcom ACT-5A .....................................................................143

F.2 ADM11 Terminal Module - Lear Siegler ADM-11.................................................................146

F.3 ADM21 Terminal Module - Lear Siegler ADM-21.................................................................148

F.4 ADM3A Terminal Module - Lear Siegler ADM-3A................................................................151

F.5 ADM3P Terminal Module - Lear Siegler ADM-3A Emulators..............................................154

F.6 ANSI Terminal Module - ANSI Standard 3.64.......................................................................156

F.7 COMPU Terminal Module .....................................................................................................158

F.8 C7101 Terminal Module - C. Itoh CIE 7101..........................................................................159

F.9 C7103 Terminal Module - C. Itoh CIE 7103..........................................................................162

F.10 CY5291 Terminal Module - Cybernex XLB-5291 ..................................................................165

F.11 DISPH Terminal Module - Northern Telecom Displayphone..............................................167

F.12 D200 Terminal Module - Data General Dasher 200..............................................................170

F.13 HP45 Terminal Module - Hewlett-Packard HP-2645 ............................................................173

F.14 HZ51 Terminal Module - Hazeltine 10/51............................................................................176

F.15 IQ120 Terminal Module - Soroc IQ-120 ................................................................................178

F.16 I3101 Terminal Module - IBM 3101.....................................................................................181

F.17 I3151 Terminal Module - IBM 3151.......................................................................................184

F.18 I3161 Terminal Module - IBM 3161/3163.............................................................................187

F.19 I3164 Terminal Module - IBM 3164.......................................................................................190

F.20 REBUS 3000 Terminal Module - Rebus 3000........................................................................193

F.21 SCANS Terminal Module - Tymshare Scanset.......................................................................196

F.22 TV910 Terminal Module - TeleVideo 910..............................................................................199

F.23 TV910P Terminal Module - TeleVideo 910 Plus/912 ...........................................................201

F.24 TV925 Terminal Module - TeleVideo 920/925/950 .............................................................205

F.25 TV970 Terminal Module - TeleVideo TV-970........................................................................209

F.26 VIEWP Terminal Module - ADDS Viewpoint/Regent ..........................................................212

F.27 VP60 Terminal Module - ADDS Viewpoint 60.......................................................................215

F.28 VT52 Terminal Module - DEC VT52......................................................................................218

F.29 VT52X Terminal Module - DEC VT52 Emulators.................................................................220

F.30 VT100 Terminal Module - DEC VT100..................................................................................222

F.31 VT220 Terminal Module ........................................................................................................225

F.32 WY30 Terminal Module - Wyse WY30 ....................................................................................228

F.33 WY60 Terminal Module - Wyse WY60 ....................................................................................230

F.34 WY60X Terminal Module - Wyse WY60 with Extended Keyboard .......................................230

F.35 WY100 Terminal Module - Wyse WY100 ................................................................................233

F.36 XT100 Terminal Module ........................................................................................................236

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1. Specifications

Protocol — SNA/SDLC

Speed — 100 bps to 19.2 kbps; Autobaud (300–9600) standard

Emulation — Controller: IBM

5251 M12, 5294, and 5394

Indicators — Channel/Error display; Power monitor; System OK LED;

Channel Status LEDs: DCE, DTE, TXD, RXD, CTS, DTR, CD, TXC, RI/SYN, RXC I/O FAULT

Interface — To host: synchronous RS-232C/V.24, DTE or DCE selectable;

To users: asynchronous RS-232C/V.24 or RS-530, DTE, DCE, or auto-selectable

Connectors —

Host: DB25 female to user’s DB25 female or DB9 male

Power — 115 or 230 VAC, switch-selectable, 50 or 60 Hz, 50 watts

Size — 6"H x 16.8"W x 11"D (15.2 x 42.7 x 27.9 cm)

Weight — 17 lb. (7.7 kg)

CHAPTER 2: Introduction

2. Introduction

The LinkUp 5294 is one of the most feature-rich protocol converters on the market today. For example, it supports the following:

• IBM PC to System/3X file transfers

• Up to 19.2K baud rate, synchronously and asynchronously

• Dual System/3X hosts

• Packet Data Network Access

• Viral Device Addressing

• Auxiliary printing

• Advanced diagnostic and system information functions

Functionally, the LinkUp is designed to convert an IBM System/3X host’s synchronous (SNA/SDLC) protocol to asynchronous (and vice versa). It also translates the IBM host’s EBCDIC code to ASCII (and vice versa). To accomplish these tasks, it emulates an IBM 5251 Model 12 Remote Workstation Controller, a 5294 Remote Cluster Controller, or a 5394 Remote Cluster Controller. PU Type 1 is implemented by the LinkUp in all emulations.

The LinkUp attaches to the sync communications adapter on your System/34/36/38 or AS/400. It can be directly (with just an RS-232 cable) or remote (through synchronous modems).

Once you make the connections, the LinkUp enables almost any ASCII terminal or personal computer and word processor (with the appropriate terminal-emulation software installed) to appear to the IBM host as an actual 5251 Model 11, 5291, or 5292 Display Workstation, implemented as LU Type 7. It also lets almost any ASCII printer to appear to the IBM host as an actual 5224, 5225, or 5256 Printer Workstation, implemented as LU Type 4. Each of these ASCII devices can be directly or remotely connected through asynchronous modems.

Figure 2-1 shows a typical LinkUp 5294 application.

Figure 2-1. A Typical Application of the LinkUp 5294.

LinkUp 2594

IBM SYS/36

Synchronous RS-232 Interface Locally or Remotely Attached

DATALYNX/5294

ON SYS OKDCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET

DataLynx /5294

Up to 32 Async Ports Support Locally or Remotely Attached Devices

ASCII PRINTERASCII PRINTER

ASCII TERMINAL

LINKUP 5294 WITH DL5294 FIRMWARE

The base model is equipped with a minimum of two sync ports, and can be easily upgraded in increments of four or eight ports, until a maximum of 34 (numbered 0 through 33) are installed. Call your supplier to find out how to order this upgrade when you wish to expand the number of connectors on your LinkUp unit.

NOTE

Port 0 and Port 1 support synchronous transmissions. Ports 2 through 33 support asynchronous transmissions.

The following manuals may prove useful during the installation and operation of the LinkUp 5294.

• IBM 5250 Information Display System Functions Reference

• IBM Synchronous Data Link Control General Information

• IBM Systems Network Architecture Concepts and Products

CHAPTER 3: Features and Applications

3. Features and Applications

This chapter covers the features and applications of the LinkUp 5294.

3.1 Display Emulation Support

The LinkUp 5294 enables almost any ASCII terminal or personal computer and word processor (with the appropriate terminal emulation software installed) to appear to your System/3X host as an actual 5251 Model 11, 5291, or 5292 Display Workstation. It accomplishes this through a variety of Terminal Modules.

A Terminal Module is a device driver which is designed after a specific ASCII terminal type, with some of the terminal type’s unique features incorporated into the module in order to optimize its performance.

NOTE

Any terminal (or terminal emulation software) capable of simulating the terminal type of a specific module can also be supported by that module. See Appendix D for a complete list of the various terminals, personal computers, and word processors currently supported by the LinkUp 5294.

Each Terminal Module has a full implementation of all of the 5250 screen handling facilities, such as attributes and cursor positioning, and most of the keyboard functions. The specific display attributes supported by the LinkUp include the following:

• Reverse Image

• Column Separator

• Non-display

• High-Intensity

• Blink

• Underscore

Any combination of these is also possible.

However, these facilities are supported only as well as the terminals in your application support them. In other words, if the terminal in your application does not support one of the listed attributes, the LinkUp 5294 cannot implement that attribute for the terminal.

Another feature is Screen Optimization. Instead of clearing and repainting a terminal’s screen of data for every new update, the LinkUp simply repaints the terminal’s screen with only the updated new characters, keeping the amount of screen painting to a minimum.

LINKUP 5294 WITH DL5294 FIRMWARE

Each of the 5250 keyboard functions supported by the LinkUp Terminal Modules has been implemented in a manner most suited to the keyboard layout of the particular terminal that the module is designed after. The supported 5250 functions are listed below:

CURSOR MOVEMENT

• Character Backspace

• Cursor Up

• Cursor Down

• Cursor Left

• Cursor Right

• Field Advance

• Field Backspace

• New Line

• Fast Left

• Fast Right

SPECIAL CONTROL

• Error Reset

• Insert

• Delete

• Erase Input

• Home

FIELD EXIT

• Duplicate

• Field Minus

• Field Plus

• Field Exit

SPECIAL HOST

• System Request

SIGNAL

• Attention

AID GENERATING

• Enter

• Clear

CHAPTER 3: Features and Applications

• Help

• Print

• Roll Up

• Roll Down

• CMD 1 CMD 2

CMD 3 CMD 4 CMD 5 CMD 6 CMD 7 CMD 8 CMD 9 CMD 10 CMD 11 CMD 12 CMD 13 CMD 14 CMD 15 CMD 16 CMD 17 CMD 18 CMD 19 CMD 20 CMD 21 CMD 22 CMD 23 CMD 24

NOTE

Appendix F lists all the currently supported terminal modules and the unique key sequences assigned for each of their supported 5250 functions.

In addition to the standard 5250 keyboard functions supported by the LinkUp 5294, the following eight extended functions are provided:

• Local Copy Print Request — prints the contents of your screen to a printer configured and assigned to a terminal (or terminals) as a Local Copy printer.

• Local Copy Form Feed — sends a form-feed command to the printer configured and assigned to a terminal (or terminals) as a Local Copy printer.

• Cancel Print — cancels a print request sent to a printer configured and assigned to a terminal (or terminals) as a Local Copy Printer.

• Refresh Screen — redisplays the last transmitted CRT screen on the screen buffer stored within the LinkUp 5294. This key is useful when a terminal’s display is garbled by line errors.

• Toggle Status Line/Toggle Indicators — toggles the display of the status indicators generated by the LinkUp to Row 24 of a terminal’s screen.

LINKUP 5294 WITH DL5294 FIRMWARE

• Toggle Echoplex Enabled — toggles the ability of the LinkUp 5294 to echo characters to a terminal’s screen. This function will wait only if you configure it as such in the LinkUp Configurator Mode.

• Initialize Terminal — causes a terminal to reinitialize without resetting the LinkUp port to which the terminal is attached. You are exited from the System/3X host session (referred to as Emulation Mode) and returned to the LinkUp sign-on menu (called Connect Mode) even if the LinkUp 5294 has been configured to prevent access to this operating mode. When this function is invoked, the host is informed that the workstation’s power has been turned off.

• Request Disconnect — similar to Initialize Terminal in that it exits you from the System/3X host session (Emulation Mode). However, unlike Initialize Terminal, it will reset the LinkUp port to which the terminal is attached. The LinkUp resets its port by dropping DTR if it is configured as a DTE interface or DSR if it is configured as a DCE interface. When a terminal is remotely connected to the LinkUp by asynchronous modems, this function will cause the modem to hang up. And like Initialize Terminal, this function informs the host that the workstation’s power is off.

Another LinkUp feature is a Status Line of five indicators displayed on row 24 of an attached terminal while it is operating in Emulation Mode. The LinkUp displays this line the first time a terminal enters Emulation Mode; thereafter, you may toggle it on or off with the key sequence corresponding to the extended function of Toggle Status Line/Toggle Indicators. These indicators are listed below:

• SYS AVAIL: — System Available indicator is set (turned on) whenever the terminal is receiving polls from the System/3X host.

• MSG WT: — Message Waiting indicator, controlled by the host, is set whenever you have messages waiting to be read.

• INS MODE: — Insert Mode indicator is set whenever [INSERT] is pressed. Insert Mode can be reset (turned off) by pressing the [ERROR RESET] or one of the Aid Generating keys.

• INPUT INH: — Input Inhibited indicator is set after an Aid Generating key is pressed. This indicates the keyboard has been locked by the host and you should not type any data. The System/3X host will reset this indicator after is has completed the requested data processing. (Operator errors will also cause this to be set.) Only System Request and Attention keys are valid while input is inhibited.

• AWFER: — A Waiting Field Exit Required indicator is set when data is entered into the last position of a field the host has marked as requiring the function of Field Exit to be invoked. It is reset once the field is exited. (On an actual IBM workstation, the cursor blinks to indicate AWFER).

Support for a 25th line Status Line display is available for the following terminals: Hazeltine Esprit 10/51, Lear Siegler ADM-11, TeleVideo 925, Wyse 30, Cyberne XLB-5291, Rebus 3000, and FileLynx/5251. The status display is exactly the same as it had been on line 24, and the Toggle Status Indicators keystroke is accessed in the same manner.

Because of design characteristics of the Wyse 30 and the Cybernec XLB-5291, the ERROR nnnn-mmmm portion of the Status Line in columns 64 through 79 of the 25th line is sometimes unable to display at the proper time. As this part of the Status Line is displayed only in the event of an error between the LinkUp and the System/3X, this limitation should be of little or no consequence to you.

NOTE

If the host or terminal attempts to write data to Row 24 while the Status Line is on, the LinkUp automatically toggles the Status Line off and displays the data.

CHAPTER 3: Features and Applications

3.2 Printer Emulation Support

The LinkUp 5294 enables almost any ASCII printer to emulate IBM 5224, 5225, or 5256 Printer Workstations via its 12 distinct Printer Modules. Eleven of the Printer Modules are designed for specific ASCII printer types. They Make use of particular features of the printers so as to optimize the module’s performance. The twelfth module is a generic PRINT module.

NOTE

Any printer that can emulate a printer supported by one of the Printer Modules can also be supported by that module, but the support is only as good as the emulation. See Appendix C of this manual for a list of the various printers currently supported by the LinkUp.

The LinkUp does not currently support all SCS commands. See the Table 3-1 for a description of which printer module supports which SCS commands.

Table 3-1. Supported SCS Commands.

HEX

SEQUENCE SCS COMMAND NAME

0C Form Feed 0D Carriage Return 15 New Line 1E Inter Record Separator 25 Line Feed 2B C1... Set Horizontal Form 2B C2... Set Vertical Form 2B C6... Set Line Density 2B D2... Set Character Density 34 4C... Relative Vertical Move 34 C0... Absolute Horizontal Move 34 C4... Absolute Vertical Move 34 C8... Relative Horizontal Move

35... Transparent

The following printer modules support the SCS commands listed above:

• CENTRN

• CI300

• DP8050

• EPSON

• GE3000

• GEN34

• GEN44

• HPDPL

LINKUP 5294 WITH DL5294 FIRMWARE

• HPDPP

• HPGEN

• OKIM84

• PRINT

NOTE

Because of a design characteristic of the Genicom®and GE3000 printers, the LinkUp must select a character font at the same time it sets character density (10 cpi vs. 15 cpi). As character fonts are not otherwise selectable in LinkUp, whenever it receives a Set Character Density command from the System/3X host the LinkUp sets the GEN34, GEN44, or GE3000 printer to the DP (draft quality) font. If another font is desired, it must be selected manually and the LinkUp must not be sent an SCD command.

The PRINT printer module does not support Set Line Density or Set Character Density.

For those printer modules which support 15 characters per inch character density, the LinkUp can be set, through SCS commands, to support 198 column printing regardless of what line length is configured in the printer LU. The SCS commands can override the configuration.

Once the appropriate configuration parameter values are defined, the LinkUp can support a printer by three different connections:

1. When the printer is directly connected to one of its asynchronous ports.

2. When the printer is remotely connected to one of its ports through asynchronous modems.

3. When the printer is sharing one of its ports with a directly or remotely connected terminal, personal

computer, or word processor, through the terminal’s auxiliary port.

Situation #3 is called the Auxiliary Printer facility of the LinkUp 5294. See Figure 3-1 for a diagram of this facility.

Figure 3-1. Auxiliary Printer Facility.

LinkUp 5294

AUXILIARY

PORT

ASCII PRINTER

IBM SYS/36

EIA RS-232C

INTERFACE

DataLynx /5294

ON SYS OKDCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET

DATALYNX/5294

EIA RS-232C

INTERFACE

ASCII TERMINAL

PC, etc

CHAPTER 3: Features and Applications

When this facility is activated, a printer attached to a terminal’s auxiliary port is addressed by your System/3X host (and the LinkUp) as if it were attached by its own distinct line, with full System/3X printer emulation capabilities. The difference between a printer attached to its own LinkUp asynchronous port and one sharing a port with a terminal through the terminal’s auxiliary port is the process of interleaved printing—two devices sharing a single port are operated concurrently and are instructed by the LinkUp to alternate, with the terminal having priority over the printer.

A choice of two distinct printer operating modes can be defined in the LinkUp Configurator Mode:

• System printing

• Local Copy printing

A System printer is one that accepts print jobs from the System/3X host. A Local Copy printer is one which accepts a command from you to print the contents of a terminal screen. To invoke a local copy print request, you must press the key sequence (appropriate for the selected Terminal Module) corresponding to the extended function of Local Copy Print Request.

NOTE

If the following conditions are not met, a Local Copy Print Request will be ignored and no error message will display.

The printer must be defined in Configurator Mode as LOC, indicating a Local Copy printer.

The printer must be associated, through Configurator or Connect Mode. to the terminal attempting to invoke the Local Copy Print Request function.

The printer must not be currently printing another terminal operator’s screen (as it is possible to assign the same printer to more than one terminal operator).

If transparent transmission of Escape sequences to ASCII devices is desired, the LinkUp will translate EBCDIC Hex BB to ASCII Hex IB (Escape) for this purpose when using the US character set.

The LinkUp supports the System/3X host’s printer SIGNAL requests:

• printer intervention required

• printer component available

“Printer intervention required” is sent by the LinkUp when a Printer Workstation goes off-line; for example, if the power is turned off or paper runs out. When this SIGNAL is received by the host, the print job is halted. Once the printer is restored to an on-line state, the LinkUp sends “printer component available” to the host, which causes the host to start the interrupted print job from where it left off. This procedure assures you that no loss of data occurs.

When a printer is connected to the LinkUp by its own port and its connect mode parameter has been configured as dedicated, the device ready signal (specified in Configurator Mode) is used by the LinkUp to determine when to send the SIGNALs. However, when its connect mode parameter has been configured for automatic answering, the LinkUp is unable to implement this facility. This is because, when the device ready signal drops, the LinkUp disconnects the device from its coupled session.

LINKUP 5294 WITH DL5294 FIRMWARE

NOTE

The printer attached to the LinkUp must be obtained so that its device ready signal matches the value configured in the LinkUp.

The conditions under which the LinkUp implements printer SIGNALs for an auxiliary printer are different. Since an auxiliary printer is connected to the LinkUp by a terminal, it cannot directly communicate with the LinkUp—it must rely on the auxiliary port provided by the terminal it is attached to. Therefore, if the terminal cannot relay to the LinkUp the auxiliary attached printer’s off-line and online states, the printer is restricted to following the off-line and on-line transmissions of the terminal.

3.3 Virtual Device Addressing

With “Virtual Device Addressing,” the LinkUp is able to support as many as 32 distinct devices. Virtual device addressing allows the LinkUp to recognize each device that attaches to one of its ports through a logical address; or, in other words, logical unit or LU number.

A logical unit and a physical asynchronous port are said to be coupled after you complete signing on to the LinkUp during Connect Mode. However, being physically connected to Port 3 does not mean you have to specify LU 3 as your assigned logical unit. Instead, by virtual device addressing, the LinkUp allows you (and your terminal operators, providing you do not configure the asynchronous port’s associated logical unit as non-overridable) to specify any one of the 32 supported LinkUp LUs (provided you have configured all of them as valid in your application).

Conversely, a logical unit and an asynchronous port are said to be decoupled when a physical or logical disconnection occurs between the attached ASCII device and the LinkUp. For example, the LU and port are decoupled when your communi-cation line drops, or when the LinkUp times out after the configured Inactivity Time Limit is reached. If a logical unit and an asynchronous port are decoupled, then the formerly coupled LU can be accessed from another physical port; or another LU can be coupled at the same physical port. In Figure 3-2, several diagrams a provided to show these various LUport coupling options.

NOTE

Establishing a communication link with your System/3X host for each of these LUs means you must define a workstation identification number (also called a local session ID or LSID), recognized as viable by your host, to each LinkUp LU. This is done by entering your host’s LSID to the LinkUp configuration parameter of Local Station Address.

CHAPTER 3: Features and Applications

Figure 3-2. Logical Unit to Physical Port Coupling Options.

LU2 to Port 2

LU4 to Port 5

LU9 to Port 5

1. LU 2 to Port 5

System 3X

ICA

Sync PortLink Up 5294

LUX 2 LUX 4 LUX 9 LUX 32

Port 2 Port 5

ASCII

Terminals

System 3X

ICA

1. LU 2 to Port 5

System 3X

ICA

Sync PortLink Up 5294

LUX 2 LUX 4 LUX 9 LUX 32

Port 2 Port 5

ASCII

Terminals

System 3X

ICA

Sync PortLink Up 5294

LUX 2 LUX 4 LUX 9 LUX 32

Port 2 Port 5

ASCII

Terminals

Sync PortLink Up 5294

LUX 2 LUX 4 LUX 9 LUX 32

Port 2 Port 5

ASCII

Terminals

LINKUP 5294 WITH DL5294 FIRMWARE

The virtual device addressing concept also enables the LinkUp to support its Auxiliary Printer facility. Once the appropriate configurations are made in the LinkUp, a terminal connected to an asynchronous port can sign on to the LinkUp (at Connect Mode), specify an LU associated with an auxiliary printer LU, and have both devices supported on that single port. See Figure 3-3 for a diagram of this feature.

Figure 3-3. Dual LU to Single Physical Port Coupling.

3.4 User-Friendly Facilities

The LinkUp is designed to be user-friendly. You should have very little, if any, difficulty operating it. Here are some of the facilities that make the LinkUp 5294 easier to operate:

• A Menu-Driven Configurator Mode, enabling you to define a variety of operational parameters by menu selections. These define the operating characteristics of the LinkUp’s synchronous and asynchronous ports, logical units, and attached devices.

• Help Messages are available at each of the LinkUp operating mode menu prompts (including Connect, Configurator, and Setup) whenever you type a <?> in response to the prompt.

• Non-volatile Electrically Erasable PROM (EEPROM) storage of every parameter value you define in Configurator Mode. This enables the LinkUp to retain your configured values even when its power is turned off.

• Password protection for Configurator Mode, preventing anyone from accessing it and redefining the LinkUp parameter values unless authorized with the correct password.

• Operating and Channel Status Indicators on the front panel of the LinkUp unit. These let you monitor your unit’s overall system health and the crucial RS-232C line signals for any port.

• Self-testing performed continuously in the background throughout daily operations. This assures you that the LinkUp is effectively executing its operating programs.

• Automatic baud detection lets the LinkUp automatically detect the incoming baud (or bit) rate of the device you have attached to its asynchronous port.

• An Inactivity Time Limit can be set in Configurator Mode. This enables you to define a maximum amount of time for the LinkUp to maintain the coupling between your terminal, while it is inactive, and its associated LU session.

• A Reconnect Time Limit can also be set in Configurator Mode. This time limit enables the LinkUp to maintain the coupling between a disconnected terminal and its associated LU session. It lets you reconnect and pick up from where the session was interrupted.

• Two-level password protection can be defined for each LinkUp LU whenever you define a Connect Mode password in Configurator Mode. The first level allows the LinkUp to restrict access to an LU from everyone except the one authorized with the correct password. The second one limits access to an interrupted LU session from everyone except the one who initially established the session.

LinkUp 5294

DATALYNX/5294

(DSPLY)

IBM SYS/36

EIA RS-232C

INTERFACE

LU6

LU 15 (AUX)

PORT n

EIA RS-232C

INTERFACE

ASCII TERMINAL

PC, etc

ASCII PRINTER

AUXILIARY

PORT

CHAPTER 3: Features and Applications

3.5 File-Transfer Support

The LinkUp can support file transfers between a System/3X host computer and an ASCII micro, mini, or instrumentation computer, providing the appropriate host and ASCII computer communication and transfer programs are installed. If the ASCII computer is an IBM Personal Computer (or compatible), four software package combinations currently available in the market can be used with the LinkUp:

• FileLynx

/5251 PC* and Emulator Transfer Utility by SSI

• TruLynx

/5251 PC and Emulator Transfer Utility by SSI

• TruLynx/5251 PC and Emulator Transfer Utility by IBM

• TruLynx/5251 PC and PC Support by IBM

*FileLynx/5251 PC can also transfer files without the assistance of a host package by a simple screen-byscreen process. Consult your supplier for more information on the various capabilities of this software package.

NOTE

PC Support/400 is not supported on the LinkUp 5294.

However, if the ASCII computer is not IBM compatible, you must provide your own communication and transfer programs for both your 3X host and the ASCII computer. In support of such an application, the LinkUp 5294 provides the COMPU Terminal Module. COMPU was designed especially for a computerto-computer transfer, and as such differs from the other Terminal Modules in the following ways:

1. Data alone is transmitted; for example, no intensity or cursor-positioning sequences are ever sent,

even if your 3X host requests them. This process enables the LinkUp 5294 to convert and pass on the transferred data in the same order it was received.

2. Screen optimization is not performed; instead, the LinkUp completely updates a screen full of data

each time an update is required. (Usually, the LinkUp updates a screen of data by repainting only the new data and clearing any old data not similar to the new data.)

3. Transferred data is completely buffered by the LinkUp 5294, enabling a continuous transmission of

data. Typically the 3X host inhibits transmission when it is processing received data by inhibiting your keyboard input; normally, the LinkUp 5294 adheres to this procedure and ignores any keyboard input you attempt.

NOTE

The COMPU module relies on the normal ASCII-to-EBCDIC and EBCDIC-to-ASCII translations of the data handled by the LinkUp. Additionally, the key sequences defined for its emulation keyboard functions are identical to those used for the ADM3A Terminal Module.

LINKUP 5294 WITH DL5294 FIRMWARE

3.6 Modify for 3174 Protocol

The DL5294 Firmware (PCM91) differs from the STD 3174 Firmware (PCM92) in the following aspects only:

• PROM cartridge (the installed firmware)

• Internal EEPROM format

• Amount of RAM installed

• Silkscreened name on front panel of unit

Your LinkUp 5294 with DL5294 Firmware can be modified to support the 3174 protocol by doing the following:

• Ordering the appropriate conversion kit from your supplier.

• Replacing and/or installing the respective parts (in accordance with the kit’s provided instructions).

• Invoking Setup Mode (explained in Section 7.7).

3.7 Port Test and System Management Modes

These two modes perform a variety of valuable diagnostic and information functions. Port Test Mode consists of the following:

• Interface Signal Display (your port only)

• Character Display Test

• Character Echo Test

System Management Mode consists of the following:

• Interface Signal Display (any LinkUp 5294 port)

• Sync Port Address Trace

• Async Port Trace

• Product Configuration and Levels display

• Sync Port Trace

• Character Display Test (the same as in Port Test Mode)

• Character Echo Test (the same as in Port Test Mode)

• LU and Async Port Summary

• Remote Reset

• SNA/SDLC Counters

Port Test Mode is covered in Section 7.3. System Management Mode is covered in Section 7.4.

CHAPTER 3: Features and Applications

3.8 5251/5294/5394 Emulation

With 5251, 5294, and 5394 controller emulation, the LinkUp 5294 can be configured to emulate two different controllers concurrently on the LinkUp 5294’s two synchronous ports. In other words, both ports can be configured to emulate either a 5251 Model 12 or a 5294 or 5394 controller, or one port can be configured to emulate a 5251 Model 12 while the other emulates either a 5294 or 5394.

NOTE

Some capabilities of an actual 5294 or 5394 controller are not fully supported by the LinkUp 5294. For example, Text Assist is not implemented; therefore, DisplayWrite is not supported. Consult your supplier for more information on those capabilities not supported.

3.9 Additional Features

• The LinkUp 5294 can be programmed for up to four controller emulations on one synchronous port (or a maximum of four across the two synchronous ports).

• Five additional functions in System Management Mode (see Section 3.7 above for a description).

• 5394 Controller emulation.

When the capability of Four Controller Emulations Per One Synchronous Port is implemented, the LinkUp 5294 appears to your host as if it were up to four distinct controllers (each with its own System/3X controller address) on a multipoint line. The LinkUp 5294 supports this facility by mapping each of the 3X controller addresses to the appropriate controller emulations by a logically defined Link Station Address (identified as Links 0, 1, 2, and 3). If so configured, the LinkUp 5294 can emulate as many as four distinct controllers across its two synchronous ports, in any combination (four addresses on one port and none on the other, or three on one port and one on the other, etc.). See Section 7.5.

Operating a single LinkUp 5294 as multiple controllers requires that you divide the virtual device addresses (logical units) among the controllers (identified as link station addresses). If your application uses this capability, keep the following limitations in mind:

1. An IBM System/3X will activate at most nine logical units when connected to a 5251 Model 12

controller, only eight logical units when connected to a 5294 controller, or as many as 16 logical units when connected to a 5394 controller.

2. The LinkUp 5294 can emulate up to four controllers simultaneously; those four may be a mix of

5251-12, 5294, and 5394 emulations.

3. Because it has a maximum of 32 logical units available, the LinkUp 5294 can have attached and

active at most 32 of the 36 logical units (nine LUs per controller times four 5251-12 controllers) available to your host(s) if emulating 5251-12 controllers. Similarly, only 32 of the possible 64 logical units (sixteen LUs per controller times four 5394 controllers) may be active during 5394 emulation.

When emulating 5294 controllers, the LinkUp can have all 32 of the host’s logical units attached and

active.

LINKUP 5294 WITH DL5294 FIRMWARE

4. Hardware Overview

This chapter discusses the LinkUp 5294’s hardware components and capabilities.

4.1 Front Panel

The front panel of the LinkUp 5294 is shown in Figure 4-1. Status indicators monitor power and RS232C line signals on the selected channel. Two user controls are provided for easy operation.

Figure 4-1. LinkUp 5294 Front Panel.

4.2 Front Panel Controls

Two front panel controls are provided on the LinkUp 5294: the CH SEL button and the RESET button. Each of these controls is discussed below.

• CH SEL (Channel Select) Button — The CH SEL button is used to select the channel to be monitored. When the button is pressed, the channel number increases. When held for a longer time, the channel number is incremented at a faster rate. The channel being currently monitored is indicated by the two-digit LED display.

If the channel number is incremented past the highest channel available in the unit, 88 appears in the display and an LED integrity test is performed. All of the front panel lights are turned on to ensure proper operation. Pressing the CH SEL button again terminates the LED test.

• The RESET Button — The RESET button is used to clear error codes from the front panel display. Error codes are listed in of Section 9.1. When the first error occurs, pressing RESET clears the error and channel status display resumes. If there is more than one error, the RESET button clears the most recent error and displays the previous one. When all of the accumulated errors have been displayed and cleared, the status lights resume their normal function. Once cleared, errors cannot be redisplayed using the front panel. Therefore, you should write down any error codes that are displayed before you press RESET.

DataLynx /5294

ON SYS OK DCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET

CHAPTER 4: Hardvare Overview

4.3 Channel Status Indicators

The LinkUp 5294 is equipped with a full RS-232C status display capable of monitoring the status of any selected port. Each of the indicators is briefly described below. ON indicates that the LinkUp 5294 is either transmitting or receiving the signal as appropriate.

• DCE/DTE (Data Communications Equipment/Data Terminal Equipment) — An LED lit for one of these indicates that the port selected has been software-optioned to communicate with either a modem (DTE) or directly to a terminal or printer (DCE).

• TXD/RXD (Transmit Data/Receive Data) — These are data signals that indicate transmission of data either to or from the LinkUp 5294.

• RTS (Request to Send) — The LinkUp 5294 provides this signal when optioned as DTE or when it expects to receive the signal when optioned as DCE.

• CTS (Clear To Send) — The LinkUp 5294 provides this signal when optioned as DCE and expects it from the modem when optioned as DTE.

• DTR (Data Terminal Ready) — The LinkUp 5294 provides this signal when optioned as DTE or expects to receive the signal when optioned as DCE. Additionally, when configured as DTE autoanswer, this signal will be provided only after receipt of the Rl (Ring Indicator) signal from the modem.

• DSR (Data Set Ready) — The LinkUp 5294 provides this signal when optioned as DCE or expects to receive it from the modem when optioned as DTE.

• CD (Carrier Detect) — This LED is lit when the LinkUp 5294 has detected a carrier signal from a remote modem. If no detectable carrier signal is present, or the remote modem hangs up, this LED is turned off.

• RI/SYN (Ring Indicator/Data Sync) — This is a dual-function LED. It displays Ring Indicate when the selected port is optioned as DTE/auto-answer in synchronous or asynchronous operation. On the sync port, this LED is always off.

• TXC/RXC (Transmit Clock/Receive Clock) — When on, this LED indicates the presence of synchronous clock signals which are required for the sync port. These must always be present for Port 0 and Port 1.

• I/O FAULT — On SYNC ports, this LED flashes if a framing error occurs. On asynchronous ports this LED indicates parity errors.

During normal operation in async DTE mode, the following should be on:

DTE, RTS, CTS, DSR and CD

RI will be on during ringing, and DTR will come on after RI is detected.

During normal operation in async DCE mode, the following should be on:

DCE, RTS, CTS, DTR, DSR and CD

In both DTE and DCE modes, the TXD and RXD lights will blink during data transfer.

LINKUP 5294 WITH DL5294 FIRMWARE

4.4 System Status Indicators

The following system status indicators are provided on the front panel.

• SYS OK — This LED blinks to indicate that the system is functioning properly. The LED acts as a “heartbeat” indicator and is never turned off unless there is an unrecoverable error.

• ON — When on, this LED indicates that the power supply is functioning properly.

4.5 Error Code Display

When a program-detectable error occurs , all channel status indicators are turned off and a two-level error code is displayed using the two-digit channel display. The two error codes are flashed alternately.

4.6 Rear Panel

The rear panel of the LinkUp 5294 is equipped with the following:

1.Up to 34 serial (RS-232/V.24 compatible) Ports, numbered 0 through 33.

2.An A.19/.15, 50/60 Hz air flow fan.

3.A rocker-type on/off power switch.

4.A 1-amp, 250-volt fuse just below the power switch (which can be removed by sliding out the rubber fuse cartridge with a screwdriver).

5.A power cord receptacle (below the fuse).

PORTS:

18 19 20 21 22 23 24 25

PORTS:

10 11 12 13 14 15 16 17

PORTS:

340-0036-02

6 7 8 9

2 3 4 5

0 1

PORTS:

18 19 20 21 22 23 24 25

PORTS:

10 11 12 13 14 15 16 17

PORTS:

6 7 8 9

2 3 4 5

PORTS:

0 1

340-0036-02

CHAPTER 5: Electrical Characteristics

5. Electrical Characteristics

This chapter covers the power specifications of the LinkUp 5294 and the requirements of the RS-232C interface for synchronous and asynchronous communications.

5.1 Power Specifications

The LinkUp 5294 power supply is rated at 50 watts and operates on 115 or 230 volts (plus or minus 15%) at 50 or 60 Hz (plus or minus 2 Hz). Its power connector is the international standard CEE-22.

NOTE

Units with 115 volts are shipped with a 7-foot NEMA 5-15P three-prong plug.

The LinkUp 5294 is certified to operate in accordance with the following standards:

• UL — Underwriters Laboratory: Listed with EDP Equipment/Office (Standards 478), File No. E87479.

• CSA — Canadian Standards Association: Certified.

• IEC — International Electrotechnical Commission: Designed to meet IEC 380.

• BPO — British Post Office: Meets the requirements of Technical Guide #26.

• FCC — Federal Communications Commission: Complies with the requirements of U.S. 47CFR Part 15 Subpart J, Class B, assuming shielded RS-232C cables are used.

5.2 Cable Pin Requirements

All of the ports on the LinkUp 5294 support the standard EIA RS-232C interface signals. In the next three sections, the signals specific to synchronous and asynchronous communications are identified.

Synchronous Port

A minimum conductor synchronous cable that will work with Bell compatible sync modems and the LinkUp 5294 in Modem Eliminator mode requires the following pins: 1 through 8, 15, 17, and 20. If the LinkUp 5294 is to be dialed from the host, Pin 22 most also be supported.

1 Frame Ground 1 2 Transmit Data (TxD) 2 3 Receive Data (RxD) 3 4 Request To Send (RTS) 4 5 Clear To Send (CTS) 5 6 Data Set Ready (DSR) 6 7 Signal Ground 7 8 Data Carrier Detected (DCD) 8 15 Transmit Clock (TxC) 15 17 Receive Clock (RxC) 17 20 Data Terminal Ready (DTR) 20 22 Ring Indicator (RI) 22

LINKUP 5294 WITH DL5294 FIRMWARE

Asynchronous Port with DB25 Connector

The minimum requirements of an asynchronous RS-232C cable for use with dedicated terminals provide Pins 1 through 8 and 20. The minimum requirements for use with auto-answer modems provide Pins 1 through 8, 20, and 22.

For directly-connected printers, certain printer types may use Pin 11 to supply a Not Busy signal.

1 Frame Ground 1 2 Transmit Data (TxD) 2 3 Receive Data (RxD) 3 4 Request To Send (RTS) 4 5 Clear To Send (CTS) 5 6 Data Set Ready (DSR) 6 7 Signal Ground 7 8 Data Carrier Detected (DCD) 8 11 Busy 11 20 Data Terminal Ready (DTR) 20 22 Ring Indicator (RI) 22

Asynchronous Port with DB9 Connector

Cable pinouts for the RS-232C DB9 connector are shown below.

1 Data Carrier Detected (DCD) 1 2 Receive Data (RxD) 2 3 Transmit Data (TxD) 3 4 Data Terminal Ready (DTR) 4 5 Signal Ground 5 6 Data Set Ready (DSR) 6 7 Request To Send (RTS) 7 8 Clear To Send (CTS) 8 9 Ring Indicator (RI) 9

CHAPTER 6: Installation

6. Installation

This chapter describes installation of the LinkUp 5294. A typical local installation to a single host is described. Attachment of local and remote (to the LinkUp 5294) terminals and printers is also included in Sections 6.3, 6.4, and 6.5. Special considerations for dual host and remote host environments are described in Section 6.6.

Information regarding the configuration of the communication and work station parameters for the System/36 and the System/38 is given in Appendices E and F, respectively, of this manual.

6.1Installing the LinkUp 5294 and the Configuration Terminal

Configuration and installation of the LinkUp 5294 requires attachment of an asynchronous terminal to one of the asynchronous ports. The terminal is then used in conjunction with the Configurator menus to set the logical configuration parameters. The terminal used for this purpose is referred to as the Configuration Terminal throughout this section.

We recommend that a local terminal be used for initial installation and configuration. This will simplify problem isolation during the installation process. Therefore, the following sections assume that the configuration terminal will be locally attached to the LinkUp 5294. If a remote terminal must be used, see Section 6.4.

6.1.1 U

NPACK THE LINKUP 5294

The LinkUp 5294 is carefully packed in a 25.5" x 15.8" x 11" box. A label on the outside of the box lists the model of the unit, serial number, firmware version number, date of manufacture, voltage setting of the power switch (115 or 230 VAC), and other electrical information. Inside you will find a a release notice for the latest firmware version, a power cord, and the LinkUp 5294.

Carefully remove the contents of the box and check to see that the above items are present. If an item is missing or defective call your supplier.

NOTE

The power cord shipped with units set for 230-volt operation does not include an AC plug. You must supply the appropriate plug.

6.1.2 I

NSTALL THE LINKUP 5294

The only additional equipment needed to install the LinkUp 5294 is an asynchronous terminal, or personal computer with terminal emulation software installed, and an appropriate length of RS-232C cable. You may also want a small for tightening the cable connection.

The LinkUp 5294 is shipped with all asynchronous RS-232C ports configured as follows:

• DCE

• Autobaud

• 8 bits/character

• No parity

• 1 stop bit

LINKUP 5294 WITH DL5294 FIRMWARE

The location of the LinkUp 5294 is not critical as long as the maximum recommended cable lengths are not exceeded. Temperature and humidity are considerations; however, the LinkUp 5294 is no more sensitive than other computer or data-processing equipment. During initial installation and testing, it may be helpful to position the LinkUp 5294 so that the front-panel indicators are easily visible.

6.1.3 S

ET UP THE CONFIGURATION TERMINAL

Refer to Appendix G for information on setting up your terminal for use with the LinkUp 5294. Ensure that the configuration terminal is set for initial operation with the following values:

• No parity

• 8 data bits

• 1 stop bit

Seven data bits and even parity is also allowed during initial configuration. This configuration allows use of virtually any asynchronous display terminal for configuration. These values are the initial default values for parameters that may be changed later to suit specific requirements.

6.1.4 C

ONNECT THE CONFIGURATION TERMINAL

Connect the terminal to an asynchronous port of the LinkUp 5294 using a standard RS-232C cable. See

Section 5.2 for required cable pinouts. No other data cable connections are required now.

6.1.5 ESTABLISH COMMUNICATION

Power on both the LinkUp 5294 and the terminal. Allow a short time, approximately 2 or 3 seconds, for the LinkUp 5294 to perform its internal power-on self tests. Once the selftests are completed and all systems are functioning normally, the SYS OK LED on the front panel begins blinking slowly and 02 appears in the CHANNEL/ERROR display. If this does not occur, see Chapter 9.

A banner message similar to the following is displayed on the screen:

***5294 CONTROLLER EMULATOR - V1.00U3***

(For Help, Type '?' after any Prompt. To Abort Connect Sequence, Type 'I')

(To Delete Response Characters, use 'Rubout'. To Cancel Response, 'ctrl x'.)

The connection is complete when the following prompt appears on the terminal screen:

Enter Device Type (ADM3A):

6.1.6 S

ELECT A DEVICE TYPE

Determine the appropriate Terminal ID for your terminal and enter it in response to the Enter Device Type prompt.

Type a question mark <?> or refer to Appendix G for a list of valid terminal types. If you are using a terminal that is not listed directly, but which emulates one of the supported terminals, use the Terminal ID for the emulated terminal.

NOTE

A question mark <?> followed by <Enter> is a valid response at any time during Connect and Configuration Modes. It displays a brief description of the response expected by the LinkUp 5294.

CHAPTER 6: Installation

6.2 Accessing the LinkUp 5294 Configurator

This section describes access to the Configurator Mode of the LinkUp 5294. Since logical configuration is unique for each installation, all system information pertinent to this control unit and its attached devices must be readily available and understood before proceeding.

To enter System Management Mode, follow these steps:

1. Establish the connection and enter the appropriate Device Type as described in Section 6.1. The

prompt “Enter LU Number (0):” is displayed.

2. Enter Port Test Mode by typing 1 in response to the above prompt. The Port Test Mode Menu

appears.

3. Select Option 1 from the Port Test Mode Menu to enter System Management Mode. The first entry

into System Management Mode requires no password, but the prompt, “Specify New System Password:”, appears. Enter a new password to protect against unauthorized access to System Management Mode.

NOTE

If the LinkUp 5294 has been previously configured, you may be prompted to enter a password before entry into System Management Mode is allowed. Get the correct password from the System Manager. (If the password is not known, see Section 7.7 of this manual.)

After entry of a password (if required) and/or a new password (or Enter), the System Management Mode menu is displayed.

4. Select Option 1, Configurator Mode, fran the System Management Mode menu. The prompt “Enter

Item to be Configured:” appears, indicating that you are in Configurator Mode. Refer to Chapter 7 for compete details on use of the Configurator.

Configure the synchronous port, asynchronous port, and LU parameters as required for your installation. Save the changes by entering END at the Enter Change(s): prompt. Exit Configurator and System Management Modes using the same command.

6.3 Connecting Additional Local Terminals

Having specified port characteristics to the LinkUp 5294 with the Configurator, ensure that additional terminals you connect are configured correctly. For further information refer to Appendix G, which gives individual setup details for all supported terminal types, or consult the literature provided by the terminal manufacturer.

Connect each terminal to the appropriate asynchronous port of the LinkUp 5294 using a standard RS232C cable.

NOTE

When attaching devices to those ports having DB9 connectors, DB9-to-DB25 converter cables may be required. Standard IBM AT serial cables, available from your local PC dealer, may be used.

LINKUP 5294 WITH DL5294 FIRMWARE

6.4 Connecting Remote Terminals

For remote terminals, full-duplex asynchronous modems are required. The modems attached to the LinkUp 5294 ports should be configured properly for switched or dedicated lines.

6.4.1 LINE CONFIGURATION

Modems on the LinkUp 5294 end of switched lines should permit the following:

• Auto-answer mode.

• Loss-of-Carrier disconnect (causes modem to drop DSR and return to auto-answer state if phone line becomes disconnected).

• External DTR control (causes modem to disconnect from phone line if the LinkUp 5294 drops DTR).

6.4.2 M

ODEM CONSIDERATIONS

Auto-answer modems must be optioned to pass Ring Indicator (Pin 22) to the LinkUp 5294 and for DTE control of DTR (Pin 20). In auto-answer mode, the LinkUp 5294 raises DTR in response to a positive going signal on Ring Indicator. The Ring Indicator signal must be set to be held low or negative except when ringing occurs. See the literature provided with the modem.

User-friendly messages which are generated by some modems (such as Connect) must be disabled. Such messages will interfere with the LinkUp 5294 autobaud detection, causing error during connection.

Connect the modem to the switched or dedicated communication line as appropriate. Connect the modem to an asynchronous port on the LinkUp 5294 using an RS-232C cable. (The LinkUp 5294 port must be configured for DTE operation.)

Connect the terminal to the other modem with an RS-232C cable. Then connect the modem to an appropriate communications line.

6.5 Connecting Printers

Printers may be connected to the LinkUp 5294 in one of two ways. Printers which use a serial interface (RS-232C cable) may be connected directly to the LinkUp 5294 using one of the asynchronous ports. The attachment may be either local, using only a cable, or remote, using a pair of modems. An alternative is to attach the printer through the auxiliary port of a terminal which is in turn attached to the LinkUp 5294. Special considerations for installation of printers are discussed in the following paragraphs.

6.5.1 L

OCAL PRINTERS

The following information applies if a directly attached printer is used:

• The port to be used must be configured with no overridable parameters, since the printer cannot be used to answer Connect Mode prompts.

• Configure the LU associated with the port as a PRT (printer) LU.

• Connect the printer to one of the async ports on the rear of the LinkUp 5294. Make sure that the port interface parameters agree. The autobaud option cannot be used for printers.

Once the printer is turned on and put on line, it should be recognized by the LinkUp 5294. If the host is properly configured, there is no further action required.

CHAPTER 6: Installation

6.5.2 REMOTE PRINTERS

In addition to the considerations listed above, the following applies to remote printers:

• Connect the printer to the modem as instructed by the modem manufacturer’s literature. A telephone is required to dial the number unless the printer or modem provides an alternate dialing method.

• The LinkUp 5294 modem should be optioned for Auto Answer if the printer operator will be dialing into the port. Set the communications parameters of the printer, modems, and the LinkUp 5294 port to match. A fixed baud rate must be used.

At the LinkUp 5294 site, the operator can monitor the port and observe the Ring Indicator flashing during the dial-up. Once the LinkUp 5294 answers the call, the DTR and DSR lights will remain on. If this does not happen, refer to Chapter 9 for help in correcting the problem.

6.5.3 A

UXILIARY PRINTERS

The following considerations apply to auxiliary printers attached directly to remotely connected terminals.

• Verify that the auxiliary port of the chosen terminal is supported by the LinkUp 5294. Refer to the Appendix G for a list of terminals which support auxiliary printers.

• Connect the printer to the auxiliary or printer port of the terminal. Set the auxiliary port parameters to agree with the printer requirements.

• The LU associated with the terminal must be configured to support an auxiliary printer LU. The printer itself is defined through configuration of its own LU.

LINKUP 5294 WITH DL5294 FIRMWARE

6.6 Connecting the LinkUp 5294 to the Host Computer

The LinkUp 5294 can be attached to the host front end in one of three ways as shown in Figure 6-1.

As shown in Figure 6-1, the DTE/DCE setting of the port depends on the type of connection used.

Method 1:

If the LinkUp 5294 is attached using a pair of synchronous modems, the sync port must be configured as DTE. The two modems are connected through a dial-up or dedicated line. In such an installation, clocking is typically provided by the modem; thus the LinkUp 5294 bit rate must be set for EXTERNAL clocking. Refer to the modem manufacturer’s literature for instructions on setting the modem for Internal Clocking and Carrier Controlled by Request to Send.

Method 2:

This method is used when the LinkUp 5294 is installed in close proximity to the S/3X. The connection consists of a single cable with no other communications equipment. In this case, the LinkUp 5294 sync port must be configured as DCE. The bit rate is controlled by the LinkUp 5294 and is set during configuration of the sync port. The LinkUp 5294 uses an internal modem eliminator which provides the necessary clocking signals.

LINKUP 5294

DTE

LINKUP 5294

DTE

SYSTEM/3X

MODEM

MODEM MODEM

ELIMINATOR

DataLynx /5294

ON SYS OK DCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET

DATALYNX/5294

DCE

(METHOD 1)

ON SYS OK DCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET

DATALYNX/5294

DCE

(METHOD 2)

DataLynx /5294

ON SYS OK DCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET

DATALYNX/5294

DCE

(METHOD 3)

DataLynx /5294

CHAPTER 6: Installation

Method 3:

This method is similar to Method 1 except that a modem eliminator is used in place of the pair of modems and the intervening line. The LinkUp 5294 port is set as DTE and the bit rate is controlled externally.

A special case of such an installation is an X.25 network environment. The Modem Eliminator depicted in Figure 6-1 could be a very complex network which connects a variety of devices in addition to the LinkUp 5294 and the host.

6.6.1 REQUIREMENTS

Before connecting to the host, get the following information so that you can configure the synchronous ports correctly.

• Link Station address. (If both ports 0 and 1 are used, they may have the same Link Station number.)

• Bit Rate. Use external clocking if the LinkUp 5294 is set for DTE, or specify a bit rate if the LinkUp 5294 is DCE.

• Whether NRZI (Non-Return to Zero Inverted) encoding is used.

• Line configuration half or full duple). If a half- duplex line is used, the LinkUp 5294 will wait for CTS from the modem before sending data.

6.6.2 D

UAL HOST INSTALLATIONS

By using the LinkUp 5294’s two synchronous ports, you can enable the LinkUp 5294 to emulate up to four controllers. These controllers can be defined to communicate with different host computers. For example, a System/34 host can be attached to one of the synchronous ports, while a System/38 host can be connected to the other port. Under this application, you can select which host you want to access by specifying the appropriately associated logical unit during Connect Mode.

Figure 6-2 shows a dual host application with the LinkUp 5294 remotely connected to two different host computers. In this example, the 32 logical units have been divided between the two synchronous ports as follows:

• LU 0 and 2 through 16 - Port 0

• LU 17 through 32 - Port 1

LINKUP 5294 WITH DL5294 FIRMWARE

6.6.3 ESTABLISH COMMUNICATION WITH THE HOST

If the LinkUp 5294 is configured as DTE:

The DTE and DTR indicators should come on when all of the equipment is connected and powered on. After the modem is powered on, the TXC and RXC lights will indicate the clocking signals. After the host connection is completed, CTS, RTS, CD, TXD, and RXD should also be present.

If the LinkUp 5294 is configured as DCE:

When all of the equipment is connected and powered on, the DCE, CTS (if full-duplex), DSR, TXC, and RXC lights should come on. After the host connection is completed, RTS, CD, TXD, and RXD should also be present.

If the correct front panel signals are not present, refer to Chapter 9. If neither the TXD nor RXD light is flashing, there is no synchronous line between the LinkUp 5294 and the host computer. Contact the host operator and make sure that the line has been activated.

LINKUP 5294

System/34 System/38

RS-232C Interface

DataLynx/5294

Port 0 Port 1

LU 0 LU 9 LU 16 LU30 LU 31 LU 32

Synchronous

Port 8Port 5Port 2

ASCII Terminals, PCs, Printers

CHAPTER 7: Operation

7. Operation

The LinkUp 5294 operates in six different modes:

1. Connect Mode — typically the operating session encountered prior to accessing the others; allows

you to sign on to the LinkUp 5294.

2. Port Test Mode — allows you to perform several diagnostic and information functions: Interface

Signal Display, Character Display Test, and Character Echo Test.

3. System Management Mode — allows you to perform the following diagnostic and information

functions:

• Interface Signal Display (similar to the function in Port Test Mode)

• Sync Port Address Trace

• Async Port Trace

• Product Configuration and Levels Display

• Sync Port Trace

• Character Display Test (also provided in Port Test Mode)

• Character Echo Test (also provided in Port Test Mode)

• LU and Async Port Summary

• Remote Reset

• SNA/SDLC Counters

4. Configurator Mode — enables you to define the operating and environmental characteristics in

which the LinkUp 5294 will function.

5. Emulation Mode — the standard operating session encountered by a terminal operator

communicating with the System/3X host.

6. Setup Mode — lets you restore the factory default configuration parameter values defined in the

LinkUp 5294.

7.1 Operating Requirements

To establish an operating session with the LinkUp 5294 the following hardware and software requirements must be met:

7.1.1 CABLES AND CONNECTIONS

As discussed in Chapter 5, all LinkUp 5294 connectors (ports) support a standard RS-232C interface. Each device or 3X host Integrated Communications Adapter (ICA) must be connected to the LinkUp 5294 by a shielded RS-232C cable.

When a terminal, printer, personal computer, or 3X host is attached directly to a LinkUp 5294 port, it is called a Local connection; when they are attached by modems, it is called a Remote connection. (Remote connections can be through switched or dedicated lines.)

LINKUP 5294 WITH DL5294 FIRMWARE

7.1.2 SYSTEM/3X HOST

On the synchronous side, the LinkUp 5294 must be attached either directly (by its integrated modem eliminator) or remotely (by synchronous modems) to your System/3X host’s ICA. As previously discussed, the adapter can be any of the following:

• A single-line communications adapter

• A multi-line (equal to four lines) communications adapter

• An eight-line communications adapter

CAUTION:

Your 3X host’s communication line must be configured comparably to the parameters of the LinkUp 5294.

7.1.3 ASCII T

ERMINAL

Virtually any ASCII terminal can be used to operate the LinkUp 5294; however, it must be compatible with one of the Terminal Modules supported by the LinkUp 5294. See Appendix D for a list of those terminals currently supported.

Your selected terminal must also be set up according to the following general terminal configuration or switch settings:

• Character Mode = ON (as opposed to Block or Line Mode)

• Full Duplex = ON

• Auto New Line = OFF (if switch-selected)

• Auto Line Feed = OFF

• Cursor addressing = ON

• Auto Scroll = OFF (if switch-selected)

• DTR and DCD = ON, DSR = OFF (if switch-selected)

• Baud Rate = LinkUp 5294 configured settings

• Word Length (composed of Data Bits, Parity, and Stop Bits) = LinkUp 5294 configured settings (most commonly implemented as 8 data bits, no parity, and 1 stop bit)

• Keyboard must be decoupled from the display (if switch selected). See note below.

NOTE

The LinkUp 5294 must handle any and all screen changes to the terminal. This means the terminal must be set so that whenever a key is pressed on the keyboard, its character is transmitted directly to the LinkUp 5294 rather than to the terminal’s display. This setup is commonly called Conversational Mode. If your terminal’s keyboard cannot be decoupled from its display (Conversational Mode = ON), you should avoid using those keys which locally affect the display. If they are not avoided, the result will be a garbled display, requiring you to invoke the LinkUp 5294 Refresh Screen extended keyboard function.

CHAPTER 7: Operation

7.1.4 PERSONAL COMPUTERS AND TERMINAL EMULATION SOFTWARE

In order for the LinkUp 5294 to operate with a personal computer or word processor, a terminalemulation software package must be installed on the PC or word processor and must be compatible with one of the Terminal Module IDs provided by the LinkUp 5294. See Appendix D of this manual for a list of those personal computers and word processors currently supported, as well as suggested terminalemulation software packages.

7.1.5 ASCII P

RINTER

When using an ASCII printer, be sure to confirm that its switch-selected parameters match those configured in the LinkUp 5294. For example, the RS-232C line signals for physical flow control (equivalent to the printer’s Not Busy signal) and device ready (the printer’s Off-line signal) or the printer’s logical flow control code.

7.1.6 M

ODEMS

When you are remotely located from the LinkUp 5294, you must communicate with the LinkUp 5294 over switched or dedicated lines in full -duplex mode with asynchronous modems. When a switched line is used, be sure to confirm that the modems are optioned as follows:

• The modem automatically answers an incoming call

• The DCD line state must not be held artificially high

• The modem should hang up when DTR drops

• The modem (attached to the LinkUp 5294) must not echo commands or characters.

When the LinkUp 5294 is remotely located from your System/3X host, it must communicate with your host over switched or dedicated lines in half- or full-duplex mode with synchronous modems. To assure that this remote connection is operating optimally, be sure to confirm that your modems are optioned as follows:

• The modem provides clocking (internal)

• The modem allows the LinkUp 5294 to control CD by RTS

7.1.7 P

ACKET NETWORK TERMINAL NODE

The LinkUp 5294 can be configured to operate in an asynchronous data packet network in one of two generic ways:

• The LinkUp 5294 recognizes that the terminal PAD echoes all hex values, which means the PAD performs all cursor-positioning functions.

• The LinkUp 5294 recognizes that the terminal PAD echoes only certain hex values.

In the second situation, the PAD (or terminal node) might be set up to echo only displayable characters: those including hexadecimal values 20 to 7E. When a PAD is set up in this way, the LinkUp 5294 is not able to suppress your input to a non-display field, such as during a password entry. This means that your input will display even though it should not.

Another PAD option might include setting it to echo some of the ASCII control codes within the range of 00 through 1F hex as well. This setting combined with one or both of the following PAD options would give the LinkUp 5294 limited control over the terminal’s cursor positioning.

LINKUP 5294 WITH DL5294 FIRMWARE

• Setting the node to forward packets of data to the LinkUp 5294 after receipt of a control code hex value of 00 through 1F and 7F from the he terminal.

• Setting the node to forward packets of data to the LinkUp 5294 after a specified time (in milliseconds) of terminal inactivity has transpired.

For example, in this PAD-configured environment, the LinkUp 5294 could support the System/3X field auto-exit capability. When a PAD echoes characters, the LinkUp 5294 is unable to move the cursor according to this standard 3X facility unless it is notified in some way to do so. Setting the PAD with either of these options will succeed in notifying the LinkUp 5294.

7.2 Connect Mode

As shipped from the factory, Connect Mode is the first operating session you will establish with the LinkUp 5294. Once established, you can select which mode you want to access next.

NOTE

Depending on your operating criteria, you may restrict your terminal operators from ever encountering this mode. If restriction is desired, then you must define the LinkUp 5294 configuration parameter values (found in Configurator Mode) as non-overridable.

7.2.1 S

IGN-ON MENU

The Connect Mode sign-on menu consists of a display of the firmware version number (represented as V1.xxxx, where x is any integer from 0 to 9) installed in the LinkUp 5294, followed by the first of as many as 15 menu prompts. A sample screen is shown below.

***5294 CONTROLLER EMULATOR -V1.00U3***

Enter Device Type (ADM3A):

As the LinkUp 5294 is shipped from the factory, this menu will appear immediately after you press your selected ASCII terminal’s <Enter> key twice. This procedure lets the LinkUp 5294 automatically detect the incoming baud rate of your terminal and match it.

CHAPTER 7: Operation

7.2.2 MENU PROMPTS AND PARAMETERS

As previously mentioned, when the Connect Mode Sign-On screen displays, a sequence of menu prompts follows. In general, the format of these prompts is: ENTER “parameter name” (default value):.

Each prompt allows you to confirm the default value for a specific LinkUp 5294 configuration parameter, or enter a new value. The number of menu prompts which ultimately display depends on which of the following parameters (if any) are defined as overridable during Configurator Mode:

• Device type

• Logical Unit Number

• Password protection (at two levels)

• Inactivity Time Limit

• Reconnect Time Limit

• Local Copy Printer LU Number

• Auxiliary Printer LU Number

• Setup parameters for Auxiliary Printer (page length, line density, etc.)

As the LinkUp is shipped from the factory, your initial Connect Mode Sign-On screen will display only two menu prompts:

Enter Device Type (ADM3A):

Enter LU Number (0):

A sample Connect Mode session where all of the possible configuration parameters have been defined as overridable is shown in Figure 7-1. Items underlined are those keyed in by a terminal operator.

LINKUP 5294 WITH DL5294 FIRMWARE

Enter Device Type (ADM3A): <Enter>

Enter LU Number (3): 5 <Enter>

Enter Password: MYLU <Enter>

Specify Reconnect Password: RECON <Enter>

Enter Inactivity Time Limit (10): NONE <Enter>

Enter Reconnect Time Limit (30): 20 <Enter>

Echoplex Enable (YES): <Enter>

Echoplex Toggle Enable (NO): <Enter>

Enter LU Number of Local Copy Printer (17): <Enter>

Enter LU Copy of Auxiliary Printer (NONE): 9 <Enter>

Auxiliary Printer Device Type (PRINT): <Enter>

Enter Page Length (11.00): <Enter>

Enter Lines Per Inch (6): <Enter>

Enter Single/Dual Case (D): <Enter>

Enter Single/Double Spacing (S): <Enter>

Emulate Form Feed with Line Feeds (NO): AUTO

CHAPTER 7: Operation

Refer to Section 7.5.7 for the definition and values appropriate to the following menu prompt parameters:

• Device Type

• LU Number

NOTE

Entering 1 at the LU Number prompt during Connect Mode will advance you to Port Test Mode if the internal RUN/SETUP switch is on RUN. It will advance you to Setup Mode if the internal switch is on SETUP. (See Section 7.7).

Refer to Section 7.5.8 for the definitions and values corresponding to the following parameters:

1. Password

2. Reconnect Password

3. Inactivity Time Limit

4. Reconnect Time Limit

5. Echoplex Enable

6. Echoplex Toggle Enabled

7. LU Number of Local Copy Printer

8. LU Number of Auxiliary Printer

Refer to Section 7.5.9 for the definitions and values corresponding to the following parameters:

1. Auxiliary Printer Device Type

2. Page Length

3. Lines Per Inch

4. Single/Dual Case

5. Single/Double Spacing

6. Emulate Form Feed with Line Feeds

NOTE

Although the parameters 2 through 5 above are displayed and allow you to enter valid values, they are not used or supported by the LinkUp 5294 at this time.

A secondary Connect Mode sign-on screen is shown below.

****5294 CONTROLLER EMULATOR - V1.00U3***

Enter Device Type (ADM3A):

Enter LU Number (3): 5

Enter Reconnect Password:

LINKUP 5294 WITH DL5294 FIRMWARE

This screen displays only if a Reconnect Time Limit is defined and the connection established with the LinkUp 5294 is either physically or logically disconnected. An example of a physical disconnection would be if a remotely established communication line hung up. An example of a logical disconnection would be if an Inactivity Time Limit was defined in the LinkUp 5294 by Configurator Mode and the LinkUp 5294 timed out after the specified time limit was reached.

NOTE

The menu prompt requesting a Reconnect Password only displays if a password was specified in the LinkUp 5294 through the Configurator Mode.

Refer to Section 7.5 of this manual for further information about the LinkUp 5294 facilities supporting this secondary sign-on screen.

7.2.3 E

DITING INSTRUCTIONS

The following key sequences are valid to edit the Connect Mode menu prompts:

• RETURN or ENTER (<Enter>) — Enters the typed response. If no response is typed at the prompt prior to pressing <Enter>, the default value is assumed for the prompt and the next prompt in the connect sequence is displayed.

• <BACKSPACE> or <DELETE> — Deletes the last character typed.

• <CTRL/X> — (Press these keys simultaneously.) Deletes all characters typed at the current prompt.

NOTE

Remote connections require you to answer each prompt within five minutes. If this time limit is exceeded, the LinkUp 5294 will abort your Connect Mode attempt and drop the line.

The following three entries are valid responses for each of the Connect Mode menu prompts:

• <!> — Restarts Connect Mode beginning with the first prompt.

• parameter value — Any one of those defined as appropriate for each prompt. (If an invalid parameter is entered, or a valid one incorrectly typed, then an error message will display.)

• <?> — Displays a help message which includes the range of valid values for the current parameter. If you get lost or confused, <?> will usually give enough help to allow you to find your bearings. Certain help messages cause the screen to be cleared before display. The screen will also be cleared when full.

7.2.4 E

RROR MESSAGES

If invalid entries are made during Connect Mode, one of the following self-explanatory messages will display on your screen.

CHAPTER 7: Operation

Value Errors:

SYNTAX ERROR. UNRECOGNIZED RESPONSE. ILLEGAL CHARACTER. MAXIMUM STRING LENGTH EXCEEDED. MAXIMUM LINE LENGTH EXCEEDED. VALUE OUT OF RANGE. INVALID. TRAILING CHARACTERS IGNORED. NOT SUPPORTED IN THIS RELEASE.

Compatibility Errors:

LU# NOT AVAILABLE. LU# NOT COMPATIBLE WITH DEVICE TYPE. LU# NOT PRINTER TYPE. LU# NOT AUX PRINTER TYPE. DISPLAY DOES NOT SUPPORT AUXILIARY PRINTER **CAUTION** (PAGE LENGTH X LINES PER INCH) HAS NON-INTEGER RESULT; LINE COUNT PER PAGE NOT UPDATED.

Operational Error:

INACTIVITY TIME LIMIT EXCEEDED.

CONNECT REQUEST FAILED.

UNABLE TO READ EEPROM. DEFAULT CHARACTERISTICS ASSUMED.

7.3 Port Test Mode

Port Test Mode uses various port tests and traces which use the following conventions:

• Data from the LinkUp 5294 to the terminal or host is enclosed in square brackets ([ ]).

• Data from the terminal or host to the LinkUp 5294 is displayed without brackets.

• Complete messages, which could consist of only a single character, are separated by a space.

• Data is displayed on the first 23 lines of the screen, with line 24 reserved for messages. If the terminal supports dual intensity, the first set of 23 data lines are displayed in low intensity. When 23 lines have been displayed, the second set of 23 lines overwrites the first data in high intensity. By alternating between high and low intensity, the most recent data is easily located. If the terminal used does not support dual intensity, all wrapped data is displayed in the same intensity.

• The <SPACE> bar is a toggle which freezes and restarts the display. When the display is frozen, data is buffered by the LinkUp 5294. If this buffer overflows, a string of asterisks (***) will appear in the trace data.

• The <Enter> key ends the trace and returns to the Options menu.

• To clear stored trace data, type an asterisk (*).

To access Port Test Mode, establish the connection to the LinkUp 5294 either by direct connection or by a dial-up line. Answer the Enter Device Type prompt with the appropriate response for your terminal type.

LINKUP 5294 WITH DL5294 FIRMWARE

When the LinkUp 5294 prompts for entry of an LU (Logical Unit) number, type 1 followed by <Enter>. The Port Test Mode menu will appear on the terminal screen.

***PORT TEST MODE***

Options:

1. System Management Mode

2. Interface Signal Display

3. Character Display Test

4. Character Echo Test

Enter Choice:

7.3.1 PORT TEST MODE MENU AND FUNCTIONS

At the Port Test Mode menu, type the number which corresponds to the function to be performed. Other accepted responses are <?>, END, and QUIT. All responses must be followed by <Enter>.

Port Test functions can only be performed on your own port. This allows any number of operators to access Port Test Mode at the same time. Each option is described below.

NOTE

If a port is configured for Option 3, Port Test Mode is not available.

• System Management Mode (Option l) —This provides access to System Management Mode functions which are described in Section 7.4.

• Interface Signal Display (Option 2) — The Interface Signal Display is a remote representation of the front panel RS-232C status indicators. When selected from the Port Test Mode menu, this feature is used to monitor your own asynchronous port. A typical display is shown at the top of the next column.

INTERFACE SIGNALS

PORT n

T R R C D D D R T R X X T T T S C / X X D D S S R R D S C C

0 0 1 1 1 1 1 0 0 0

CR - Options Menu; SPACE — Freeze/Start Display

One (1) indicates that the signal is logically true or on. A zero (0) indicates that the signal is not present. This display allows eight refreshes per second on a 2400-baud terminal. Refer to Section 4.2 for an explanation of the individual signals.

• Character Display Test (Option 3) — This function is used to test the terminal screen for proper display of the alphanumeric characters. The Character Display Test generates a continuous output of the Alphabet Test message to the terminal.

CHAPTER 7: Operation

+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopq rstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefg hijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\ }^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRST UVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLM NOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDE FGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456 789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz +/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopq rstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefg hijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\ }^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRST UVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLM NOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDE FGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz

• Character Echo Test (Option 4) — The Character Echo Test causes the LinkUp 5294 to echo each key typed from the keyboard. This includes Attention Keys and Escape (ESC) sequences. Care should be taken in using this test. Typing other than the displayable ASCII character set (Hex 20 through Hex 7E) may cause unpredictable results. Type two <Enter>s to return to the options menu.

7.4 System Management Mode

Two Consecutive CR's - Options Menu

System Management Mode utilizes various port tests and traces which use the following conventions (identical to Port Test Mode):

• Data from the LinkUp 5294 to the terminal or host is enclosed in square brackets ([ ]).

• Data from the terminal or host to the LinkUp 5294 is displayed without brackets.

• Complete messages, which could consist of only a single character, are separated by a space.

• Data is displayed on the first 23 lines of the screen, with line 24 reserved for messages. If the terminal supports dual intensity, the first set of 23 data lines is displayed in low intensity. When 23 lines have been displayed, the second set of 23 lines overwrites the first data in high intensity.The alternation between high and low density makes the most recent data easy to locate. If the terminal being used does not support dual intensity, all wrapped data is displayed in the same intensity.

• The <Enter> key ends the trace and returns to the Options menu.

• To clear stored trace data, type (*).

To access System Management Mode, establish the connection to the LinkUp 5294 either by direct connection or by a dial-up line. Answer the Enter Device Type prompt with the appropriate response for your terminal type.

When the LinkUp 5294 prompts for entry of an LU (Logical Unit) number, type 1 followed by <Enter>. The Port test mode menu will appear on the screen. Type 1 <Enter> at the Enter Choice prompt to access System Management Mode.

LINKUP 5294 WITH DL5294 FIRMWARE

System Management Mode may be accessed by only one operator (port) at a time. If you select Option 1 of Port Test Mode when System Management Mode is already in use, the following message is displayed and you are returned to Connect Mode:

System Management Mode already in use.

Unlike Port Test Mode, System Management Mode can be password-protected. When System Management Mode is selected, the LinkUp 5294 will prompt for entry of the system password if one is required. A new password may then be specified after successful entry of the old one. After the correct password has been entered, the System Management Mode Option Menu is displayed.

7.4.1 SYSTEM MANAGEMENT MODE MENU AND FUNCTIONS

***SYSTEM MANAGEMENT MODE***

Options:

1. Configurator Mode

2. Interface Signal Display

3. Sync Port Address Trace

4. Async Port Trace

5. Product Configuration and Levels

20. Sync Port Trace

21. Character Display Test

22. Character Echo Test

23. LU and Async Port Summary

24. Remote Reset

25. SNA/SDLC Counters

Enter Choice:

NOTE

The LinkUp 5294 is shipped from the factory with no password defined. Therefore, when you select System Management Mode for the first time, you are prompted to enter a new System password. You may specify a password at this time or you may default to no password by entering <Enter>. As long as the system remains without a password, you will be prompted only for a new one.

If you wish to clear a System password and return to the no-password condition, enter the current password at the Enter System Password prompt. Then enter NONE at the Specify New System Password prompt.

To avoid unauthorized access, use of a password is highly recommended.

If the System password is forgotten, the default condition of no password may be restored by executing a SETUP procedure. See Section 7.7 for this procedure.

Options numbered 1 through 5 are available on both Standard and Deluxe models. Those options numbered 20 and above are only available with Deluxe firmware. Deluxe options will not appear on the menu if Standard firmware is installed.

CHAPTER 7: Operation

All of the menu options are explained in the following paragraphs. To exit System Management Mode and return to Connect Mode, type either END or QUIT, followed by <Enter> in response to the Enter Choice prompt. Exit from each of the function screens is discussed below.

• Configurator Mode (Option 1) — When Item 1 is selected from the menu, the LinkUp 5294 enters Configurator Mode and the following prompt is displayed:

Enter Item to be Configured:

This allows configuration of Port and LU parameters. Configurator Mode is discussed in depth in Section 7.5. To exit Configurator Mode and return to System Management Mode, type END or QUIT <Enter>.

• Interface Signal Display (Option 2) — The Interface Signal Display is a remote representation of the front panel RS-232C signal indicators. This option is also available from Port Test Mode to monitor your own port only. (See Section 7.3.) When selected from System Management Mode, this test can be used to monitor any installed port on the LinkUp 5294.

When the option is selected, the LinkUp 5294 prompts you to enter the port to be monitored. After the port number is entered, the interface signal information is displayed. A typical display is shown below. Refer to Section 4.2 for an explanation of the individual signals.

• Sync Port Address Trace (Option 3) — This option displays each control unit address as it appears in the synchronous data stream. Each address is displayed as a two-character hex value followed by two blanks. This can be used on a multipoint line to display all active Control Unit addresses.

INTERFACE SIGNALS

PORT n

T R R C D D D R T R X X T T T S C / X X D D S S R R D S C C

0 0 1 1 1 1 1 0 0 0

CR - Options Menu; SPACE — Freeze/Start Display

When the option is selected, the LinkUp 5294 prompts you to enter the port to be monitored. After the port number is entered, the sync port address trace is displayed.

• Async Port Trace (Option 4) — This function monitors both the input and the output data stream for the selected async port. When the option is selected, the LinkUp 5294 prompts you to enter the port to be monitored. After the port number is entered, the async port trace is displayed.

**** 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03

CR - Options Menu; SPACE Freeze/Start Display

LINKUP 5294 WITH DL5294 FIRMWARE

• Product Configuration and Levels (Option 5) — This option displays the total number of ports, amount of RAM and EEPROM, firmware version number and calculated CRC. The Product Configuration and Levels screen is shown below.

***0D[110D0A2020202A2A2A03331373420434F4E54524F4C20554E495420454D554C41544F 52202D205632E3037000055003300000000000000202A2A2A0D0A0D0A0A28466F722048656C70 2C205479706520273F272061667465722061E792050726F6D742E20546F2041626F72742043 6F6E6E6563742053657175656E63652C2054797065202721272E20290D0A28546F204456C6574 6520526573706F6E736520436861726163746572732C2075736520275275626F7574272E20546F 6576696365205479706520280041444D334100293A20] 77[57] 79[59] 35[35] 30[30] 70 [50] 0D [0D0A456E746572204C55204C55204E756D62657220283900293A29]

CR- Options Menu; SPACE - Freeze/Start Display; * - Reset Trace

Possible values for the above hardware components are as follows:

• Available EEPROM: 16K bytes

• Available RAM: 256K to 768K bytes

Product Configuration

Available EEPROM 16K bytes

Available RAM 768K bytes

Available PORTS 34 Total

Firmware Version 1.00U3

Calculated CRC F667H

CR - Options Menu

• Available Ports: from 6 to 34 (includes sync ports) by multiples of four

The firmware version and calculated CRC will vary. Please record the values shown; your supplier will need to know them if you have to report a problem.

• Sync Port Trace (Option 20) — This function monitors both the input and output data stream of the selected sync port (and Sync Link Number, if so configured). Data is displayed as hex data, using the display formats and conventions described earlier, as well as the following:

A dash is introduced after the first row and after the first four hex values of a message, to mark the end of the link and transmission headers.

The two byte CRC is included in inbound messages to the LinkUp 5294.

The screen below illustrates a sync port trace, with explanation of trace format.

CHAPTER 7: Operation

• Character Display Test (Option 21) — This option generates a continuous output of the alphabet test message on your async port. The character display test is shown below. This option is also available in Port Test Mode.

• Character Echo Test (Option 22) — The Character Echo Test causes the LinkUp 5294 to echo each key typed from the keyboard. This includes Attention Keys and Escape (ESC) sequences. Care should be taken in using this test. Typing other than the displayable ASCII character set (Hex 20 through Hex 7E) may cause unpredictable results. This option is also available in Port Test Mode. Type <Enter> twice to return to the options menu.

+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijk lmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWX YZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLM NOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@A BCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123 456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnop qrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^` abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQ RSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDE FGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/012345678 9:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuv wxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcde fghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTU VWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=>?@ABCDEFGHIJ KLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/0123456789:;<=> ?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijklmnopqrstuvwxyz+/ 0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\}^`abcdefghijkl

mnopqrstuvwxyz

• LU and Async Port Summary (Option 23) — This function displays certain configuration parameters for each Logical Unit, along with information about the state of the LU and the keyboard. Async port configuration parameters are also displayed. This display requires two pages for the LU Summary, and up to four pages for the Async Port Summary.

Two Consecutive CRs - Options Menu

Two Keys are active during this test:

Press <N> (for next) to display the next page of data.

Press <Enter> to return to the options menu.

The LU Summary screen is shown below. The Async Port Summary is shown on top of the next page.

****] C193-27E8 [C173-] C100 - 2D0000000001 - 6B8001...[

CR - Options Menu; SPACE Freeze/Start Display; * - Reset Trace

Loss of data

continuity indicating

the beginning

of the trace.

Link

Header

Link

Header

SNA

information

unit

Transmission

Header

2 byte

CRC

LinkUp

response

LINKUP 5294 WITH DL5294 FIRMWARE

• Remote Reset (Option 24) —This function is equivalent to a hardware reset (power off/power on). This causes sync port changes and printer port changes to take effect. When the reset screen is displayed, you must enter YES before the reset takes place. An answer of N, NO, or <Enter> will abort the command and the reset will not occur. Any other response will elicit an error message, and the Remote Reset caution message will be redisplayed. If a Remote Reset is aborted, you will be returned to the System Management Mode menu. If the reset is executed, you must begin again at the Connect Mode screen. The Remote Reset warning screen is shown below.

LU Number 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

LU type Dsp Dsp Dsp Dsp Dsp Dsp Dsp Dsp Dsp Dsp Dsp Dsp Dsp Dsp Dsp Dsp

LU State Dis Dis Dis Dis Dis Dis Dis Dis Dis Dis Dis Dis Dis Dis Dis Dis

Input Inhib No No No No No No No No No No No No No No No No

Echo Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

Insert Mode No No No No No No No No No No No No No No No No

Printer Pacing N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

LSID No. 0 2 3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

Sync Port 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Sync Link No. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Async Port N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

Port Number 2 3 4 5 6 7 8 9

Device Type ADM3A ADM3A ADM3A ADM3A ADM3A ADM3A ADM3A ADM3A

DTE/DCE DCE DCE DCE DCE DCE DCE DCE DCE

Bit Rate Auto Auto Auto Auto Auto Auto Auto Auto

No. of Bits 8 8 8 8 8 8 8 8

Parity None None None None None None None None

Stop Bits 1 1 1 1 1 1 1 1

Connect Mode DED DED DED DED DED DED DED DED

FC From Conv. XON XON XON XON XON XON XON XON

FC From Device XON XON XON XON XON XON XON XON

Dev Rdy Signal DTR DTR DTR DTR DTR DTR DTR DTR

• SNA/SDLC Counters (Option 25) — This function displays statistical information for the selected synchronous port. Entering the port number in response to the LinkUp 5294 prompt causes the screen shown below to be displayed.

CHAPTER 7: Operation

**CAUTION**

The Remote Reset Breaks All LU Activity in a Non-Recoverable Way.

Are you CERTAIN that you want to Reset the Controller (YES OR NO)?

CR - Options Menu

These counters have the following meanings:

• CRC Errors — Cyclic Redundancy Check errors. This is the total number of blocks with errors that have been received from the host.

SNA SDLC Counters for Port 0

SEND RECEIVE

CRC Errors N/A 1 Retransmissions 0 N/A SNRMs N/A 1

Frame Counters

I Frames 666 1667 U Frames 2 2 Total 668 1669

• Retransmissions — This is the total number of blocks resent to the host.

• SNRMs — Set Normal Response Mode commands. This is the number of SNRMs received by the LinkUp 5294.

• I-Frames — Information Frames. This is the number of data frames sent and received.

• U-Frames — Unnumbered Frames. This is the number of unnumbered frames, such as SNRM, XID and DISC commands, sent and received.

• Total — The total number of I-Frames and U-Frames.

Values for the first 5 items are displayed as decimal numbers between 0 and 65535. The last item (Total) is counted to 131070. If these maximum displayable values are reached, the counters are not automatically reset.

All counts are reset to zero when the LinkUp is turned off, or when Remote Reset is issued. These counts are not affected by a host-generate REQMS with Reset request.

The following keys are active during this operation.

<R> resets the counters. (This does not reset RECFMS totals.)

<D> is used to refresh the display.

<Enter> is used to return to System Management Mode menu.

• Set Date/Time (Option 26) — Current date: yy/mm/dd; Current time: hh:mm:ss; Clock correct? (y/n):

LINKUP 5294 WITH DL5294 FIRMWARE

7.5 Configurator Mode

Configurator Mode may only be accessed from one terminal at a time. To access it, you must first be in System Management Mode. Select Option 1 from the System Management Mode options menu. The LinkUp 5294 will enter Configurator Mode and the following prompt will be displayed:

Enter Item to be Configured:

As previously mentioned, Configurator Mode enables you to define the operating and environmental characteristics in which the LinkUp 5294 will function. The following menus are employed to accomplish this task:

1. Synchronous port(s)

2. Asynchronous port(s)

3. Logical Unit (displays)

4. Logical Unit (printers)

5. Logical Unit (auxiliary printers)

7.5.1 H

ELP MESSAGES DURING CONFIGURATION

Help messages are available at any time during configuration. These messages are displayed on the terminal screen and provide information on valid responses and available options. If you need a brief reminder of acceptable responses during the configuration process, simply type <?> <Enter> and an appropriate help message will be displayed on the screen.

The Help Screen for the Enter Item to be Configured: prompt is shown below:

Enter one of the following items:

PORT -To configure First/Next Physical Port. PORT n -To configure Physical Port n,

where n is in the range 0 to 33. LU -To configure the First/Next Logical Unit. LU n -To configure Logical Unit n, where n

is 0 or 2 to 32.

<RETURN> -To configure the next item in the standard

system sequence, which is Sync Port(s),

Async Ports, Logical Units. STATUS -To display LU numbers and Ports. END -To terminate Configurator Mode.

NOTE: Port and Logical Unit ranges depend on system setup.

TO CONTINUE PRESS <RETURN> KEY:

7.5.2 CONSISTENCY CHECKING

The Configurator validates individual parameter values as they are entered. This includes checking for parameter interdependencies. In some cases the Configurator will change multiple parameter values as the result of a single change by the operator. For example, when an async port Communications Interface is changed from DTE to DCE, the Flow Control from Device and Device Ready pin numbers are forced to Pins 5 and 6 (CTS and DSR), respectively.

CHAPTER 7: Operation

If a new parameter value is entered which is not compatible with another existing parameter, the message Incompatible with Parameter (n) is displayed, where (n) is the number of the existing parameter. You are then prompted again to enter parameter changes.

If your response is invalid or mistyped, an error message is displayed.

7.5.3 OVERRIDABLE PARAMETERS

Certain parameter values in the asynchronous port and LU menus are followed by a plus (+) or minus (-) sign. The plus sign allows the parameter to be changed at connect time, while the minus sign does not allow change. If no sign is present, the parameter is not overridable at connect time. These flags may be entered independently of the actual parameter value. Thus, the following three examples are all valid change entries for the Device Type parameter (Asynchronous Port Menu):

1 = ADM3A 1 = - 1 = ADM3A +

At connect time, the value for a non-overridable parameter is the default value specified by the Configurator. However, for an overridable parameter the Connect processor will display a prompt followed by the default, to allow entry of a different value if necessary.

For example, if an installation only uses Televideo 925 terminals, all directly coupled to the LinkUp 5294, then the default Device Type (TV925) should be set by the Configurator as non-overridable. An operator performing a normal connect to the LinkUp 5294 would not then be asked to enter the Device Type.

Parameters for Printer and Auxiliary Printer LUs cannot be set as overridable. Since these LUs are controlled by the host, their parameters cannot be changed at connect time.

If a port and its associated default LU are configured with no overridable parameters, a connecting terminal will immediately enter Emulation Mode with no prompts being displayed. If configuration is necessary, execute the INITIALIZE TERMINAL sequence (usually [ESC <]) to exit Emulation Mode and enter Connect Mode. Configurator Mode may then be accessed from System Management Mode.

7.5.4 C

ONFIGURATOR MODE COMMANDS

Configuration commands are entered from the terminal keyboard. The LinkUp 5294 always provides a prompt whenever a response is required. The general format of a configuration menu is:

[n] [Parameter Name] [current setting] [overridable]

[n][Parameter Name] [current setting]

Enter Change(s):

The response format is: [n] = [New Value]

where: [n] is the number shown on the menu, and [New Value] is a valid setting

LINKUP 5294 WITH DL5294 FIRMWARE

As an example, a typical configuration menu is shown below:

Current Parameter Values for Port 0 (SYNC):

1. Communications Interface DTE

2. Bit Rate EXT

3. Connect Mode DED

4. Half/Full Duplex Line FULL

5. NRZI Encoding NO

6. Emulation Mode 5294

7. Number of Link Stations 02

8. Link 0 Station Address CF

9. Link 1 Station Address CE

10. Link 2 Station Address 00

11. Link 3 Station Address 00

Enter Change(s):

More than one parameter may be changed on a single line; however, parameters must be entered in ascending sequence. For example:

Enter Change(s): 2=EXT, 5=YES, 7=04 <Enter>

Spaces between configuration entries and characters are optional and are ignored. For multiple changes on a single line, use a comma to separate entries.

Unless otherwise stated, all commands are followed by the <Enter> key.

During configuration, help messages are available at two levels. To illustrate this, assume you typed PORT 2 <Enter> in response to the Enter Item(s) to be Configured: prompt. The following screen appears:

At this point, typing <?> <Enter> will display a list of acceptable responses, valid formats, editing keys, etc. The general format for a response is also shown.

Current Parameter Values for Port 2:

1. Device Type ADM3A +

2. Associated Logical Unit 0 +

3. Communications Interface DCE

4. Bit Rate AUTO

5. Number of Bits/Char (Excluding Parity) 8

6. Parity NONE

7. Number of Stop Bits 1

8. Connect Mode DED

9. Flow Control from Converter XON

10. Flow Control from Device XON

11. Device Ready Signal DTR

12.Packet Network Access N

13. Auto Exit Enabled YES

Enter Change(s):

A second level of help exists for each specific parameter. For instance, to see the available responses for parameter #1, type: 1 = ? <Enter>. This will show all of the available settings for parameter 1 on the current menu.

CHAPTER 7: Operation

The <CR> (Redisplay) Command

After a valid change line has been entered, the menu is not automatically redisplayed. Press <Enter> at the next Enter Change(s): prompt to redisplay the menu with the new values included.

Backspace or Delete keys can be used during configuration to correct typing mistakes. The command deletes the last character of the current entry.

The <CTRL/X> (Delete Entry) Command

This command deletes the current entry. This may be more convenient than the single character Backspace or Delete key for correcting typing errors. This command does not require <Enter>.

The <!> (Restore Previous Values) Command

During a configuration session, it is sometimes desirable to reset all of the changes to the previously held values. This can be done by typing an exclamation point <!> followed by <Enter> in response to the Enter Change(s) prompt. This command only resets the parameters changed since the last END command. In other words, the parameters changed on other menus or previous edits to the current menu are not reset.

NOTE

If it becomes desirable to reset all configuration parameters to their factory default values, the SETUP procedure may be used. Refer to Section 7.7 for this procedure.

The END Command

To exit from a configuration menu, type END followed by <Enter> in response to the Enter Change(s): prompt. This stores the new parameter settings and in most cases returns you to the Enter Item(s) to be Configured: prompt. There is one Exception. When you type END to exit the Asynchronous Port configuration menu after configuring the port to which your terminal is connected, the LinkUp 5294 takes you out of Configurator Mode and displays the following message on your screen:

**Connect/Port Test Cancelled - Port Reconfigured.**

When you see this message, press Enter to return to Connect Mode. If you are connected to the LinkUp 5294 by modems, you will have to redial.

The END command is also used in response to the Enter Item(s) to Be Configured prompt to exit from Configurator Mode and return to the System Management Mode menu. Note that changes made while in Configurator Mode are saved when END is typed in response to the Enter Change(s): prompt.

On exit from a specific menu level in Configurator Mode, all modified parameters will be saved in EEPROM. If not currently in use, the item will be immediately reinitialized with its new parameters. Otherwise, reinitialization will occur when the item becomes idle—for example, when you disconnect from the LU.

NOTE

A hardware reset must be performed after you have reconfigured a synchronous port or assigned an LU to a new or modified synchronous port, SDLC Link Number or Local Station Address. A hardware reset is performed by powering the LinkUp off and back on, or by activating the Remote Reset command from System Management Mode.

LINKUP 5294 WITH DL5294 FIRMWARE

The <CR> Next Item Command

Configurable items may be automatically configured in the following sequence:

Synchronous Ports (0, 1)

Asynchronous Ports (2 through 33, depending on the number and type of async boards installed)

Logical Units (0, 2 through 32)

When the Enter Item(s) To Be Configured: prompt is displayed, the <Enter> key alone will increment to the next item in the above sequence. This is particularly useful the first time the LinkUp 5294 must be configured, as it eliminates the need to type in each item separately.

The STATUS Command

Enter this in answer to the Enter Item To Be Configured prompt to display a table of all the LinkUp 5294 ports and LUs and their respective operating states and device types. (Refer to Section 8.2 for further information about this table.)

The Status Screen is shown on the top of the next page.

The PORT n Command

Enter this at the Enter Item To Be Configured: prompt, where n is the number of a LinkUp 5294 physical port (either synchronous [0 or 1] or asynchronous [2 through 33]). If PORT is entered by itself, the LinkUp 5294 displays the next incremented PORT number, based on the one you last configured.

Logical Unit Status (P= Pending Disconnect; D = Disconnected; )

(I = In-Use; R = Reconnectable; U = Undefined)

LU No. 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LU Type 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 Status D D D D D D D D D D D D D D D D Sync Port 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Sync Link # 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 LSID # Async Port __________________________________________________________________

LU No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 LU Type 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 Status D D D D D D D D D D D D D D D D Sync Port 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Sync Link # 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 LSID # Async Port

TO CONTINUE PRESS <RETURN> KEY:_

The LU n Command

Enter this at the Enter Item To Be Configured: prompt, where n is the number of a LinkUp 5294 Logical Unit (numbered 0 or 2 through 32). If LU is entered by itself, the LinkUp 5294 displays the next incremented LU menu, based on the one you last configured.

CHAPTER 7: Operation

The DSPLY, PRT, AUX Commands

Enter one of these at the Enter Logical Unit Type: prompt to define the LU as a display, printer (connected to its own port), or an auxiliary printer.

7.5.5 C

ONFIGURATION PROCEDURES

To configure the LinkUp 5294 for use in an IBM or other synchronous host environment, it is recommended that the following steps be completed in the order listed:

1. Configure the synchronous port(s).

2. Configure all asynchronous ports that will be used except for the port to which your terminal is connected.

3. Configure all Logical Units that will be used.

4. Perform the Reset Sync Port command in order to effect sync port configuration changes.

5. Configure the async port to which your terminal is connected (if necessary).

7.5.6 S

YNCHRONOUS PORT PARAMETERS

1. Communications Interface

Valid values are: DTE (Data Terminal Equipment) or DCE (Data Communications Equipment).

When connecting the LinkUp 5294 to the communications adapter on your System/3X by modems or line drivers (modem eliminators) on a point-to-point or multi-point communication line, this parameter must be set to DTE. However, when connecting the LinkUp 5294 directly to your host’s adapter, the Communications Interface must be specified as DCE. This latter application is possible because of the LinkUp 5294’s integrated modem eliminator.

2. Bit Rate

Valid values are: 1200, 2000, 2400, 3600, 4800, 7200, 9600,14400,19200, or EXT.

When the LinkUp 5294 is directly connected to your host’s adapter (Communications Interface = DCE), the LinkUp 5294 must provide the clocking signals. Selecting a specific bit rate will enable the LinkUp 5294 to do this.

For connections through modems or line drivers (Communications Interface = DTE), the modem or line driver will provide the clocking signals. Set the bit rate to EXT (External) in this application.

3. Connect Mode

Valid values are: DED (Dedicated) or AUTO (Automatic Answer).

When the LinkUp 5294 is connected to your host through modems, specifying AUTO will enable the LinkUp 5294 to automatically answer an incoming call from your host. When this is not the application, DED should be specified.

4. Half/Full Duplex Line

Valid values are FULL or HALF.

The value defined for this parameter depends on whether the LinkUp 5294 port is configured for a DTE or DCE interface, and is as follows:

• HALF-DUPLEX (DTE) — Following data reception from the host, the LinkUp 5294 waits for the

Carrier Detect signal to go low before raising the Request-To-Send signal.

LINKUP 5294 WITH DL5294 FIRMWARE

• HALF-DUPLEX (DCE) — Following data reception from the host, the LinkUp 5294 waits for the

Request-To-Send signal to go low before raising the Carrier.

• FULL-DUPLEX (DTE) — Following data reception from the host, the LinkUp 5294 immediately

raises the Request-To-Send signal.

• FULL-DUPLEX (DCE) — Following data reception from the host, the LinkUp 5294 immediately

raises the Carrier Detect signal and starts transmission.

NOTE

The LinkUp 5294 raises and lowers RTS under a DTE interface and CD under a DCE interface during Full Duplex operations because it is an essential procedure in multipoint applications; for example, a Control Unit on a multi-point line, which does not lower its RTS signal at the end of a transmission, prevents the other Control Unit(s) from ever using the line. The host’s communication adapter should be set so its RTS signal is permanently raised.

5. NRZI Encoding

Valid values are YES or NO.

The appropriate value here depends on your host’s requirements. Normally, a System/3X is strapped for NRZI encoding (specify YES); if not, the LinkUp 5294 is able to support direct encoding (specify NO).

6. Emulation Mode

Valid values are: 5251 (IBM 5251 Model 12 Remote Workstation Controller), 5294 (IBM 5294 Remote Cluster Controller), or 5394 (IBM 5394 Remote Cluster Controller).

NOTE

The 5294 and 5394 emulation modes do not support all of the actual IBM 5294 or 5394 Controller functions. For example, Text Write Assist is not supported. Consult your supplier for further information on these limitations.

7. Number of Link Stations

Valid values are: 0 through 4. This parameter dictates how many Link Station Addresses will be recognized by the LinkUp 5294 on this port; that is, how many controllers will be emulated by the LinkUp 5294 through this port. The addresses of these controllers are then specified in parameters 8 through 11, below. Values greater than one are valid on deluxe units only.

NOTE

A maximum of four Link Station Addresses may be specified on the two synchronous ports, in any combination. If a value for this parameter is specified so that this maximum is exceeded, the following error message is displayed:

7: VALUE OUT OF RANGE; TOTAL NUMBER OF LINK STATIONS FOR PORT 0 AND PORT l IS 4.

When the value of this parameter is lessened, Link Addresses (in parameters 8 through

11) which fall outside the valid range are automatically set to 0; for example, if parameter 7 is set to 0, parameters 8 through 11 will also be set to 0, and no controllers can be emulated on that port.

CHAPTER 7: Operation

8-11. Link 0, Link 1, Link 2, and Link 3 Station Addresses

Valid values are: 0 through FE Hex. If 0 is entered, the LinkUp 5294 assumes that the Link Station Address is not to be used; if a Hex value beginning with an alpha character (A through F) is entered, that Hex value must be entered with a leading 0 in this example: 0A9.

Link Station Address is the term used to identify one of the LinkUp 5294 emulated controllers. To establish a communication link with your 3X host, you must define a viable Controller Address from the host for each controller.

NOTE

On deluxe models only, more than one Link Station Address can be supported for each synchronous port. This enables the LinkUp 5294 to emulate as many as four IBM Remote Controllers on a single port from a single line ICA.

CAUTION

If your unit is a deluxe model, note that each synchronous port configured to support two Link Station Addresses must have two distinct Controller Addresses, and must use the same emulation mode (5251, 5294, or 5394).

NOTE

If more Station Addresses are specified in Parameters 8 through 11 than were specified in Parameter 7, the following error message is displayed:

n: INCOMPATIBLE WITH PARAMETER 7.

7.5.7 ASYNCHRONOUS PORT PARAMETERS

The Asynchronous Port Menu is shown below:

1. Device Type

Valid values are:

Current Parameter Values For Port 4 (ASYNC):

1. Device Type ADM3A+

2. Associated Logical Unit 4+

3. Communications Interface DCE

4. Bit Rate AUTO

5. Number of Bits/Char (Excluding Parity) 8

6. Parity NONE

7. Number of Stop Bits 1

8. Connect Mode DED

9. Flow Control from Converter XON

10. Flow Control from Device XON

11. Device Ready Signal DTR

12. Packet Network Access N

13. Auto Exit Enabled YES

Enter Change(s):

LINKUP 5294 WITH DL5294 FIRMWARE

For a terminal or PC:

ACT5AADM11 ADM21 ADM3A ADM3P ANSI COMPU C7101 C7103 CY5291 DISPH D200 HP45 HZ51 SCANS TV910 TV910P TV925 TV970 T5250 VIEWP VP60 VT52 VT52X VT100 VT220 WY30 WY60 WY60XWY100 XT100

For a printer:

CENTRN C1300 DP8050 EPSON GE3000 GEN34GEN44HPDPL HPDPP HPGEN OKIM84 PRINT

A Terminal or Printer Module ID is the appropriate response at this parameter. The correct module to enter depends on the device (terminal, PC, or printer) attached to the port being configured. Each module is based on a brand name ASCII terminal or printer.

NOTE

This parameter can be defined as overridable (+) or non-overridable (-).

When a Printer Module ID is entered, the LinkUp 5294 forces this parameter and the next one (Associated Logical Unit) to be non-overridable.

2. Associated Logical Unit

Valid values are: 0 and 2 through 32.

A Logical Unit is a virtual device address that is not tied to any one physical port. The LinkUp 5294 uses an LU as an identification number to keep track of your attached device; it is not the workstation address Local Station ID) defined on your System/3X.

NOTE

This parameter can be defined as overridable (+) or non-overridable (-).

One (1) is only a valid entry during Connect Mode at the Enter LU Number menu prompt, and is used only to access Configurator Mode.

3. Communications Interface

Valid values are: DCE (Data Communications Equipment) or DTE (Data Terminal Equipment).

When connecting an asynchronous modem to a LinkUp 5294 asynchronous port, this value must be defined as DTE; but when connecting your terminal, PC, or printer directly to an asynchronous port, it must be set to DCE.

CHAPTER 7: Operation

4. Bit Rate

Valid values are:

75 110 134 150 300 600 1200 2000 2400 4800 7200 9600 14400 19200 AUTO

AUTO enables the LinkUp 5294 to automatically detect the incoming baud rate of the device attached to its port. This is commonly called Autobaud detection. When AUTO is specified, the LinkUp 5294 is only able to determine the following bit rates:

19200 9600 4800 2400 1200 300 bps

NOTE

Any value received by a LinkUp 5294 port configured for AUTO, below 1200 bps, is treated as if it were 300 bps.

5. Number of Bits/Char (Excluding Parity)

Valid values are: 8 or 7.

Asynchronously transmitted data is structured as below, beginning with the start bit:

Start bit Character code bits Parity bit Stop bit(s)

NOTE

Set this value to match the character structure supported by your terminal, PC, or printer connected to the port you are configuring.

6. Parity

Valid values are: ODD, EVEN, MARK, SPACE, or NONE.

Parity enables the LinkUp 5294 to perform asynchronous error checking on the communication line between itself and your attached device. For a true parity check, ODD or EVEN are the recommended settings. If NONE is defined, no parity error checking will occur.

CAUTION

MARK and SPACE are valid only when 7 is defined for Number of Bits/Char; while ODD and EVEN can be defined with 7 or 8.

NOTE

Set this value to match the character structure supported by your terminal, PC, or printer connected to the port you are configuring.

LINKUP 5294 WITH DL5294 FIRMWARE

7. Number of Stop Bits

Valid values are: 1, l.5, or 2.

When defining this parameter take into account the bit rate of your attached device. Generally, for optimum bit rate performance, 1 stop bit is used; however, exceptions are: 2 stop bits at 110 bps and 1.5 stop bits at 134 bps.

NOTE

Set this value to match the character structure supported by your terminal, PC, or printer connected to the port you are configuring.

8. Connect Mode

Valid values are: DED (for Dedicated) or AUTO (for Automatic Answer).

When the LinkUp 5294 is connected to your terminal, PC, or printer by an asynchronous modem, specifying AUTO will enable the LinkUp 5294 to automatically answer an incoming call from your device. For directly connected devices, DED should be specified.

NOTE

When Communications Interface and Connect Mode are defined as DTE and AUTO, respectively, the LinkUp 5294 waits for Ring Indicator from the asynchronous modem before raising DTR. With DTR raised, the modem (configured to automatically answer an incoming call) accepts the dial-up connection and then raises DSR to the LinkUp

5294. However, when DCE and AUTO are respectively defined and DTR drops, the LinkUp 5294 terminates the coupled user session.

9. 10. Flow Control from Converter/Flow Control from Device

Valid values are: NONE, XON, CTS, RTS, DSR, DTR, or P11.

The values defined here let the LinkUp 5294 know what RS-232C line signals or XON/XOFF commands are being used to control the flow of data between itself and your attached device. See Table 7-1 before defining values for these parameters.

11. Device Ready Signal

Valid values are: NONE, CTS, RTS, DSR, or DTR.

The value defined here lets the LinkUp 5294 know which RS-232C signal to watch in order to determine when the device attached to its port is ready for operation. Consult Table 7-1 before defining a value for this parameter.

CHAPTER 7: Operation

Table 7-1. Communications Interface, Flow Control, and Ready Signals

COMM. FLOW CONTROL FLOW CONTROL DEVICE INTERFACE from CONVERTER from DEVICE READY

DCE NONE/XON/CTS/DSR NONE/XON NONE/RTS/DTR

DCE NONE/XON/CTS/DSR DTR NONE/RTS

DCE NONE/XON/CTS/DSR RTS/P11 NONE/DTR

DTE NONE/XON/RTS/DTR NONE/XON NONE/CTS/DTR

DTE NONE/XON/RTS/DTR CTS NONE/DSR

DTE NONE/XON/RTS/DTR DSR NONE/CTS

12. Packet Network Access

Valid values are: N (for None), 1, or 2, or 3.

Values 1 and 2 are generic supports for asynchronous data packet networks. If you choose one (l), the LinkUp 5294 to generates cursor positioning as it usually does. If you choose two (2), the LinkUp 5294 relies on the network’s terminal node to perform cursor positioning by means of its local echo of escape sequences, except in the following situations:

• When a screen wrap is required. This occurs when the cursor moves from the bottom to the top of

the screen, or from the right margin to the left margin.

• When fast cursor left and fast cursor right are invoked.

13. Auto Exit Enabled

Valid values are: YES or NO.

When YES is defined here, the LinkUp 5294 moves the cursor to the next System/3X input field after it reaches the end of the field it is currently in, providing the field has been defined for auto-exit on your 3X host. To disable Auto Exit, specify NO for this parameter.

NOTE

When Parameter 12, Packet Network Access, is defined as N for none, then Parameter 13 cannot be defined as NO.

7.5.8 LOGICAL UNIT PARAMETERS FOR A DISPLAY

The Display Logical Unit Menu is shown below:

1. Associated Sync Port

Valid values are: 0 (for Port 0) or 1 (Port 1).

The value defined here lets the LinkUp 5294 know which physical synchronous port the LU under configuration is assigned to. The 32 LUs available on the LinkUp 5294 may be assigned in whatever way your application requires. For example, if you require only one synchronous port, then all the LUs can be defined to that single port; if you require two synchronous ports to emulate two remote controllers, you may divide the LUs between the two in any combination you wish.

LINKUP 5294 WITH DL5294 FIRMWARE

Current Parameter Values For Logical Unit 2 (DSPLY):

1. Associated Sync Port 0

2. Associated SDLC Link Number 0

3. Local Station Address NONE

4. Buffer Size 1920

5. Number of Screen Rows 24

6. Number of Screen Columns 80

7. Password NONE

8. Inactivity Time Limit NONE

9. Reconnect Time Limit 30

10. Logical Unit Number of Local Copy Printer NONE

11. Logical Unit Number of Auxiliary Printer NONE

12. Echoplex Enable YES

13. Echoplex Toggle Enable NO

14. Display Status Line Initially NO

15. Character Set US Enter Change(s):

CAUTION

Whenever this parameter or either of the following two (Associated SDLC Link Number and Local Station Address) is reconfigured, a hardware reset must be performed on the LinkUp 5294.

NOTE

If, during a two synchronous port operation, the host sends a request to Port 1 for an LU associated with Port 0, the LinkUp 5294 responds with an Unavailable LU error message.

2. Associated SDLC Link Number

Valid value (for standard LinkUp 5294 units) is: 0 (for Link 0 Station Address).

Valid values (for deluxe units) are: 0 (for Link 0 Station Address), 1 (for Link 1 Station Address), 2 (for Link 2 Station Address), and 3 (for Link Station Address).

As previously mentioned, deluxe LinkUp 5294 units can logically emulate as many as four remote controllers per synchronous port. Therefore, not only must you define the LU (under configuration) to a specific synchronous port, you must also define it to a specific Link Station Address.

3. Local Station Address

Valid values are: Any hexadecimal value from 0 through 0F.

Local Station Address refers to the workstation identification number assigned to one of the devices (a display or printer) communicating with your System/3X host. It is also called a Local Session ID or LSID. The correct value for this parameter depends on what the designated LSID is on your System/3X host. Once this value is set, the LinkUp 5294 is able to establish a communications link between your 3X host and one or more of its LUs.

NOTE

Any LinkUp 5294 LU may be linked to any System/3X LSID at any Controller Address defined to one of the LinkUp 5294 Link Station Address; however, a one-to-one correspondence (one LSID to one LU) must be maintained.

CHAPTER 7: Operation

An IBM 5251 Model 12 controller uses LSIDs numbered 0 and 2 through 9.

An IBM 5294 controller uses LSIDs numbered 0 through 9.

An IBM 5394 controller uses LSIDs numbered 0 through 0F.

4. Buffer Size

Valid value is: 1920.

There is only one value possible for this parameter. This is because 1920 is the standard buffer size of a 5250 Display.

5, 6. Number of Screen Rows/Number of Screen Columns

Valid value is: 24 (rows) by 80 (columns).

There is only one value possible for these parameters. This is because 24 by 80 is the standard size of a 5250 Display.

7. Password

Valid values are: Any combination of 1 to 6 alphanumeric characters, or NONE.

Specifying a password enables the LinkUp 5294 to protect the configured LU from being accessed (during Connect Mode) by everyone but the terminal operator assigned to that LU (the one who knows the password). When NONE is specified no password is defined, and the LinkUp 5294 cannot restrict anyone from accessing the configured LU.

Whenever a password is defined at this parameter, the LinkUp 5294 can also offer you a second level of password protection, called a Reconnect Password. A Reconnect Password allows the LinkUp 5294 to restrict access to your LU (so that only you can re-access it, since you alone know the specified password) in the event the LU session is interrupted due to a physical or logical disconnection; for example, if your communication line drops or the LinkUp 5294 times out after reaching the specified Inactivity Time Limit.

NOTE

Valid values for the Reconnect Password are: Any combination of 1 to 6 alphanumeric characters or NONE. If NONE is specified, or if you simply skip over to the appropriate Connect Mode prompt (by pressing <Enter>), the Reconnect Password defaults to the first level password configured to the LU.

Once a password is defined, you cannot sign on to the LinkUp 5294 (during Connect Mode, either initially or at a reconnect operation) until you successfully enter that password. The LinkUp 5294 allows you three attempts before advising you that your CONNECT REQUEST FAILED. When this message displays, the LinkUp 5294 also reinitializes the affected asynchronous port. If you are remotely connected, your line will be dropped.

8. Inactivity Time Limit

Valid values are: Any integer (representative of minutes) from 1 to 99, or NONE. When NONE is specified, it means no inactivity time-out will occur.

LINKUP 5294 WITH DL5294 FIRMWARE

When an inactivity time limit is specified, it represents the maximum time that the LinkUp 5294 will maintain the coupling between an inactive terminal (one experiencing no keyboard input or host output) and an LU session. If an inactivity time limit is reached, the LinkUp 5294 responds by clearing your screen and displaying the following message before returning you to Connect Mode:

INACTIVITY TIME-OUT - DISCONNECTED

NOTE

This parameter can be defined as overridable (+) or non-overridable (-).

9. Reconnect Time Limit

Valid values are: Any integer (representative of minutes) from 0 to 99, or NONE. When 0 is specified, the LinkUp 5294 terminates a disconnected LU session immediately; if NONE is specified, the LinkUp 5294 holds a disconnected LU session open for reconnect indefinitely.

When a reconnect time limit is specified, it defines the maximum time in minutes that the LinkUp 5294 will hold a disconnected LU session open, enabling you to reconnect to the last screen display. Disconnections can be either physical, as when the remote telephone line drops, or logical, as when the LinkUp 5294 Inactivity Time Limit is reached.

NOTE

During reconnect state, the LinkUp 5294 responds to the System/3X host for your disconnected LU session as if nothing were wrong. In other words, if the host outputs data to the LU, the LinkUp 5294 stores it. Then, when you reconnect within the configured time limit, the LinkUp 5294 automatically updates your screen to reflect the new data.

This parameter can be defined as overridable (+) or non-overridable (-).

10. Logical Unit Number of Local Copy Printer

Valid values are: 0, 2 through 32, or NONE.

CAUTION

You may only specify an LU number configured as a printer. It must also be further defined as a Local Copy printer (LOC).

When an appropriate LU number is defined to this parameter, the assigned terminal operator will be able to invoke the extended keyboard functions of LOCAL COPY PRINT REQUEST and LOCAL COPY FORM FEED.

NOTE

This parameter can be defined as overridable (+) or non-overridable (-).

11. Logical Unit Number of Auxiliary Printer

Valid values are: 0, 2 through 32, or NONE.

CAUTION

You may only specify an LU number configured as an auxiliary printer (defined as AUX).

CHAPTER 7: Operation

When an appropriate LU number is defined to this parameter, the assigned terminal user will be able to operate their terminal and auxiliary attached printer with the LinkUp 5294 Auxiliary Printer facility, allowing shared use of a single LinkUp 5294 asynchronous port.

NOTE

This parameter can be defined as overridable (+) or non-overridable (-).

12. Echoplex Enable

Valid values are: YES or NO.

If your application requires the LinkUp 5294 to echo characters and control codes back to your attached ASCII devices, specify YES at this parameter. If this is not the requirement, as when using the COMPU module, specify NO.

NOTE

This parameter can be defined as overridable (+) or non-overridable (-).

When the Packet Network Access parameter of the Asynchronous Port Configurator Menu is defined as 1 or 2, then the Echoplex Enable parameter is superseded.

13. Echoplex Toggle Enable

Valid values are: NO or YES.

Specifying YES at this parameter enables the LinkUp 5294 to respond to the extended keyboard function of TOGGLE ECHOPLEX ENABLED whenever you press it. This function allows you to selectively toggle when you want the LinkUp 5294 to echo characters and control codes back to their terminals.

NOTE

This parameter can be defined as overridable (+) or non-overridable (-).

When the Packet Network Access parameter of the Asynchronous Port Configurator Menu is defined as 1 or 2, then the Echoplex Toggle Enable parameter is superseded.

14. Display Status Line Initially

Valid values are: YES or NO.

This controls whether or not the Status Line is displayed after initial connection to the host. The default for this parameter is YES.

15. Character Set

Valid values are: US or MULTI.

US is the U.S. character translation currently available in versions of the LinkUp 5294 code before 1.15. MULTI is a multinational character translation based on IBM Multinational EBCDIC character set and an extended version of IBM Code Page 850 ASCII character set. The default value is US.

LINKUP 5294 WITH DL5294 FIRMWARE

7.5.9 PRINTER LOGICAL UNIT PARAMETERS FOR A PRINTER OR AUXILIARY PRINTER

The Logical Unit Configuration menus for Printers and Auxiliary Printers are shown below. The default values are also shown. To access these menus, enter PRT or AUX at the Enter Logical Unit Type (DSPLY) prompt.

1. Associated Sync Port

Valid values are: 0 (for Port 0) or 1 (for Port 1)

The value defined here lets the LinkUp 5294 know which physical synchronous port the LU under configuration is assigned to. The 32 LUs available on the LinkUp 5294 may be assigned in whatever way your application requires. For example, if you require two synchronous ports to emulate two remote controllers, you may divide the LUs between the two in any combination you wish.

Current Parameter Values For Logical Unit 7 (PRT):

1. Associated Sync Port 0

2. Associated SDLC Link Number 0

3. Local Station Address NONE

4. Operational Mode LOC

5. Line Length (Columns) 132

6. Page Length (Inches) 11.00

7. Lines Per Inch 6

8. Single/Dual Case D

9. Single/Double Spacing S

10. Emulate FF with LF NO

11. Character Set US

Enter Change(s):

Current Parameter Values For Logical Unit 9 (AUX):

1. Associated Sync Port 0

2. Associated SDLC Link Number 0

3. Local Station Address NONE

4. Operational Mode LOC

5. Line Length (Columns) 132

6. Page Length (Inches) 11.00

7. Lines Per Inch 6

8. Single/Dual Case D

9. Single/Double Spacing S

10. Emulate FF with LF NO

11. Character Set US

Enter Change(s):

CAUTION

Whenever this parameter or either of the following two (Associated SDLC Link Number and Local Station Address) are reconfigured, a hardware reset must be performed on the LinkUp 5294.

NOTE

CHAPTER 7: Operation

If, during a two synchronous port operation, the host sends a request to Port 1 for an LU associated with Port 0, the LinkUp 5294 responds with an unavailable LU error message.

2. Associated SDLC Link Number

Valid value for standard LinkUp 5294 units: 0 (for Link 0 Station Address).

Valid values for deluxe units: 0 (for Link 0 Station Address), 1 (for Link 1 Station Address), 2 (for Link 2 Station Address), and 3 (for Link 3 Station Address).

As previously mentioned, deluxe LinkUp 5294 can logically emulate as many as four remote controllers per synchronous port. Therefore, not only must you define the LU under configuration to a specific synchronous port, but you must also define it to a specific Link Station Address.

3. Local Station Address

Valid values are: Any hexadecimal value from 0 to 0F.

Local Station Address refers to the workstation identification number assigned to one of the devices (a display or printer) communicating with your System/3X host. It is also called a Local Session ID or LSID. The correct value for this parameter depends on what the designated LSID is on your System/3X host. Once this value is set, the LinkUp 5294 is able to establish a communication link between your 3X host and one or more of its LUs.

NOTE

Any LinkUp 5294 LU may be linked to any System/3X LSID viable to any Controller Address defined to one of the LinkUp 5294 Link Station Addresses; however, a one-toone correspondence (one LSID to one LU) must be maintained.

An IBM 5251 Model 12 controller uses LSIDs numbered 0 and 2 through 9.

An IBM 5294 controller uses LSIDs numbered 0 through 9.

An IBM 5394 controller uses LSIDs numbered 0 through 0F.

Operational Mode

Valid values are: LOC (for Local Copy printer) or SYS (for System printer).

If you require the ability to print the contents of their terminal screens to a designated printer, you must select and define a printer LU for a local copy operational mode, or LOC. If your application necessitates being able to perform print jobs from your host, you must select and define a printer LU for a system operational mode, or SYS.

CAUTION

These two values are mutually exclusive. If one is defined to an LU, the other cannot be supported by the same LU.

Line Length (Columns)

LINKUP 5294 WITH DL5294 FIRMWARE

Valid values are: Any integer from 40 to 132.

The value specified at this parameter represents the maximum line length permitted. The actual line length depends on the format controls sent by your host. Therefore, when defining your desired maximum, make sure it corresponds to the actual carriage width of the ASCII printer(s) you will be attaching to the LinkUp 5294.

NOTE

Although the values of parameters 6 through 9 can be changed on the configuration menus, they are ultimately controlled by the System/3X host; they are not used or supported by the LinkUp 5294 at this time.

6. Page Length (Inches)

Valid values are: Any number from 1 to 22, carried out to two decimal places. The entry format is nn.nn, representing decimal numbers from 01.00 to 22.00, inclusive.

7. Lines Per Inch

Valid values are: 6 or 8.

8. Single/Dual Case

Valid values are: D (for Dual case) or S (for Single case).

9. Single/Double Spacing

Valid values are: S (for Single spacing) or D (for Double spacing).

10. Emulate Form Feed with Line Feeds

Valid values are: NO, YES, or AUTO.

This parameter provides support for the SCS command Set Vertical Form.

If this parameter is set to NO, the LinkUp 5294 sends Form Feed when Form Feed is received from the host whether or not a standard or non-standard form length has been sent by the host through the SVF command, and whether or not an Escape sequence to specify form length exists for the printer. This is the default setting. It will be up to you to set proper forms length, etc., at the printer.

If the parameter is set to YES, the LinkUp 5294 sends the proper number of Line Feeds to the printer to emulate a Form Feed when Form Feed is received from the host, regardless of the forms length set by the SVF command or the capabilities of the printer.

If set to AUTO, the LinkUp 5294 sends an Escape sequence to the printer specifying the form length in lines per form (if there exists such a sequence) after receipt of a SVF command from the host. Form Feed will subsequently be sent to the terminal after receipt of Form Feed from the host. If no such Escape sequence exists (or if the length as specified by the SVF command is outside of the valid range of the Escape sequence), Form Feeds received from the host are emulated by the LinkUp 5294 with the proper number of Line Feeds.

11. Character Set

CHAPTER 7: Operation

Valid values are: US and MULTI.

Auxiliary Printer Device Type (AUX Menu Only)

Valid values are: CENTRN, CI300, DP8050, EPSON, GE3000, GEN34, GEN44, HPDPL, HPDPP, HPGEN, OKIM84, or PRINT.

A Printer Module ID is the appropriate response at this parameter. Each module is based on a brand name ASCII printer. To determine which module to select, the printer attached to your terminal users’ auxiliary port must be:

• The actual printer type

• Its compatible

• Capable of emulating the actual printer type

7.5.10 S

YNTAX ERROR MESSAGES

If invalid entries are made while editing in Configurator Mode, one of the following self-explanatory messages will be displayed on your screen:

When the error corresponds to a specific parameter in one of the Configurator Mode menus, the respective message will be displayed in the following format:

n: {message}

where n is the number of the parameter in error and {message} is the appropriate error message. The brackets { } do not display; they are used here as markers only.

NOTE

Whenever you finish reconfiguring the parameters of the asynchronous port to which your terminal is connected, the LinkUp 5294 exits Configurator Mode, saves your changes, and displays the following message before returning you to Connect Mode:

**Connect Attempt Cancelled Port Reconfigured **

7.5.11 P

HYSICAL CONFIGURATION

Whenever you reconfigure a synchronous port you must perform a hardware reset in order to reinitialize it. This may be accomplished by powering the LinkUp 5294 off and back on again, or by using the Remote Reset function in the System Management Mode options menu.

A hardware reset must also be done when you reassign an LU to another synchronous port, SDLC Link

LINKUP 5294 WITH DL5294 FIRMWARE

Number, and Local Station Address.

7.6 Emulation Mode

Emulation Mode is the operating session enabling you to communicate with your System/3X host as though the terminal, PC, printer, or auxiliary printer you are using is an actual IBM 5251 model 11 or 529x Display Workstation or 52xx Printer. A terminal or PC is defined as in session when the Sign-On menu of your System/3X host is displayed on its screen. (Emulation Mode will appear as it does in the screen below, if you advance to it prior to configuring the LinkUp 5294 as required by your application, or you have not yet connected it to your System/3X host.)

SYS AVAIL: * MSG WT: INS MODE: INPUT INH: AWFER

Typically, you enter Emulation Mode by correctly responding to the last Connect Mode menu prompt. However, if you define the LinkUp 5294 configurator parameters as non-overridable (-), the Connect Mode menu and prompts will not display and you will immediately enter Emulation Mode. Once in Emulation Mode, you can sign on to your 3X host and perform typical 3X session activities as any normal 5250 Workstation would.

NOTE

If you have restricted access to Connect Mode by making all Connect Mode prompts non-overridable, and if the LinkUp 5294 parameter of Bit Rate is defined as AUTO, you and your terminal operators must press <Enter> twice to enter Emulation Mode.

7.7 Setup Mode

Setup Mode resets all Configurator Mode parameters to their factory default values. Use Setup Mode when you are changing the number of asynchronous ports, or if you wish to convert a LinkUp 5294 to a Link Up 3174 (or vice versa). When upgrading the LinkUp firmware PROM cartridge, it is only necessary to go through Setup Mode when the release notice accompanying the upgrade specifies that it must be done.

NOTE

To make sure the Configurator Mode parameters you choose are consistent with the ones you chose in Setup Mode, it is recommended that you keep a record of all your Setup Mode configuration choices.

To enter Setup Mode, you must take the LinkUp apart and set an internal switch. Follow these

CHAPTER 7: Operation

instructions carefully:

1. Turn off and unplug the LinkUp 5294.

2. Loosen the thumbscrews on either side of the main circuit board and slide the circuit board part way out. Move the two-position switch located near the PROM cartridge from the RUN position to the SETUP position. Carefully slide the main circuit board back into position, making sure that the CHANNEL SELECT and RESET buttons do not bind on the front panel.

3. Plug the LinkUp 5294 in and turn it on.

4. Connect a suitable display terminal (or PC with appropriate terminal emulation software installed) to Port 2 and power it on. The terminal must be set to operate with 8 bits and no parity. Its baud rate may be set for 300, 1200, 2400, 4800, 9600 or 19200.

5. Press <Enter> twice on your terminal to display the Connect Mode sign-on menu.

6. Proceed as though you wished to enter Configurator Mode: specify your terminal type, then answer <1> in response to the Enter LU number prompt.

7. Because of the setting of the internal RUN/SETUP switch, you will not enter Configurator Mode, but will instead enter Setup Mode. As shown in Figure 7-2, you must now enter the Setup Mode password; both DALYNX and SETUP are valid passwords, as shipped from the factory.

8. When the message appears telling you to reset the LinkUp 5294, all ports and LUs will have been set to their factory default parameters in EEPROM. Return the RUN/SETUP switch to the RUN position by taking the appropriate actions as described in Step 2.

9. Proceed to Configurator Mode to define the port and LU parameters as you desire.

Enter Device Type (HZ51): <Enter>

Enter LU Number (2): 1 <Enter>

****SETUP MODE****

ENTER SETUP PASSWORD DALYNX

<Enter>

PARAMETER STORAGE IN PROGRESS.

SWITCH TO CONFIGURATOR MODE

AND RESET LINKUP 5294.

Figure 7-2. Sample Setup Mode Session.

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8. Packet Network Access Applications

Packet Network Access support allows the LinkUp 5294 to be used in X.25 and other network environments facilitating transmission of asynchronous data. The LinkUp 5294 is located between the IBM host computer and the host PAD (Packet Assembler-Disassembler), as shown in Figure 8-1. The host PAD provides the interface between the LinkUp 5294 and the X.25 network. The terminal is connected to the Packet Data Network (PDN) through the terminal PAD. The terminal can be directly cabled to the PAD, or can dial into a public PAD port.

Figure 8-1. A Packet Data Network Environment.

The LinkUp 5294 will convert the host’s synchronous data into an asynchronous data stream. The host PAD will bundle the asynchronous data into a packet and transmit it over the X.25 network to the terminal PAD. The terminal PAD will unbundle the asynchronous packet and send the data stream to the terminal. Conversely, the terminal’s asynchronous data stream will be assembled into a packet and transmitted by the terminal PAD. The host PAD will receive the packet, unbundle it, and pass the asynchronous data stream to the LinkUp 5294. The LinkUp 5294 will now convert the asynchronous data into a synchronous data stream and send it to the host.

8.1 Terminology

The following abbreviations are used throughout this section

• AID Keys — Attention Identifiers. These are keys that require host processing. They are: <CLEAR>,

<Enter>, Command keys, Roll keys, <HELP> and <PRINT>. When these keys are pressed, the LinkUp 5294 will normally lock the terminal’s keyboard and send the information to the host. The host will generally return data for the display and signal the LinkUp 5294 to unlock the keyboard.

• Auto Exit Field — This is a type of field which is defined by the input field attributes of the IBM host

application. After the operator has entered the last character of the field, the cursor will be positioned to the next input field automatically, without requiring the operator to press <TAB> or <FIELD EXIT>.

• Character Echo — This causes a character to appear on a terminal’s display after a key on the

keyboard has been pressed.

• Cursor Movement Keys — These are the Up Arrow, Down Arrow, Left Arrow, and Right Arrow keys.

LinkUp 5294

DataLynx /5294

Host

Terminal

PAD

X.25 PDN

Host PAD

ON SYS OKDCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET

DataLynx/5294

CHAPTER 8: Packet Network Access Applications

They are generally handled by the LinkUp 5294, without requiring any information to go to the host.

• Host PAD — The PAD located at the host end of the network. In an X.25 network with

minicomputers and asynchronous terminals, this is the PAD located at the minicomputer end of the network. In the LinkUp 5294 implementation where IBM hosts are used, this is the PAD located at the LinkUp 5294.

• PAD — Packet Assembler-Disassembler. This is a physical interface node with an asynchronous (RS-

232C) port on one side and an X.25 protocol interface on the other side. A PAD is similar to an asynchronous modem in that both provide an interface to specialized communications lines.

• PNA — Packet Network Access. The LinkUp 5294 feature which allows connection of asynchronous

terminals through an X.25 network.

• PDN — Packet Data Network. A network of private or public communications lines which use X.25

protocol.

• Packet — A collection of asynchronous data of varying length addressed for a specific destination.

• Terminal PAD — The PAD located at the asynchronous terminal end of the X.25 network.

8.2 Using the LinkUp 5294 with PDNs

In order to explain the way the LinkUp 5294 handles keystroke echo and cursor positioning with PDNs, it is necessary to explain how the LinkUp 5294 handles these with a directly connected terminal.

Figure 8-2 shows the flow of information between the keyboard, display, and the LinkUp 5294 when alphanumeric or cursor movement keys are pressed.

A = Press the Up Arrow key. Up Arrow keycode goes to the LinkUp 5294.

B = The LinkUp 5294 echoes the Up Arrow to the display (or in some cases sends a cursor address)

and the cursor is repositioned.

Figure 8-2. Cursor Movement Echo.

LinkUp 5294

DataLynx

DataLynx /5294

ON SYS OKDCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET

Terminal

Host

LINKUP 5294 WITH DL5294 FIRMWARE

PADs are capable of echoing keycodes back to the terminal. If the PAD echoes the keycode and the LinkUp 5294 also echoes the keycode, the result will be duplicate characters, as you can see in Figure 8-3. Therefore, it is important to configure the PAD and the LinkUp 5294 properly.

Figure 8-3. Double Echo with PAD.

Figure 8-4 shows the flow of information between the keyboard, display, and the LinkUp 5294 when AID keys are pressed.

A = Press the <CMD> key. The CMD 3 code goes to the LinkUp 5294.

B = Recognizing the AID key, the LinkUp 5294 locks the keyboard.

C = The CMD 3 code is sent to the host.

D = The host processes the command. Then appropriate data and an unlock keyboard command is sent

to the LinkUp 5294.

E = The LinkUp 5294 sends the data and a cursor positioning command to the display, and then unlocks the keyboard.

Figure 8-4. AID Key Echo.

LinkUp 5294

Terminal

PAD

X.25 PDN

Host

PAD

DataLynx/5294

ON SYS OKDCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET

DataLynx /5294

Host

Terminal

DataLynx

DataLynx /5294

ON SYS OKDCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET

Host

CHAPTER 8: Packet Network Access Applications

When using PADs, a transmission delay can occur between the terminal and the LinkUp 5294. If there is a delay between the time you press the <CMD 3> key and the time the LinkUp 5294 locks the keyboard, it is possible for you to continue typing. You are ahead of the host computer, which is going to send cursor-positioning information. The cursor-positioning information goes to the terminal and moves the cursor to a location which is different from where you left it.

8.3 Installation Considerations

Packet Data Network support can be configured for any asynchronous port of the LinkUp 5294. To enable PDN support, set the value for Async Port parameter 12 to one of the following values as determined by the network type and function required.

• 12=1 Local PAD echo of characters with explicit cursor positioning sequences. This is generic PDN

support. This ensures cursor synchronization at the expense of your having to wait for the LinkUp 5294 response after each press of the cursor key. Otherwise, data may be garbled.

• 12=2 Local echo with local cursor echo. This is the same generic support as Option 1, but without the

LinkUp 5294 echo of cursor movement keys. The PAD itself will echo the cursor movement keys.

• 12=3 Local echo with local cursor echo. This is for use with the Telnet network because proprietary

PAD control sequences are used.

The Async Port menu Option 13, Auto Exit Enabled, may be disabled (set to N) to avoid cursor positioning problems that may occur when typing beyond the end of a field.

The host PAD should be optioned for DCE and the LinkUp 5294 as DTE. The LinkUp 5294 expects to see ring indicate on Pin 22 for an incoming PDN call and will raise DTR on Pin 20 in response. The PAD should drop Pin 6 (DSR) to indicate the end of a connection so that the LinkUp 5294 will initiate session termination as configured. Ensure that the host PAD will provide these modem simulation functions.

When the LinkUp 5294 is used with X.25 networks, some screen display problems may result. If the initial port configuration is done while connected to the network, you will at first encounter locally echoed passwords and duplication of characters. However, once the port is configured and you have exited to Connect Mode, local character echo will cease. Double echo will not occur during subsequent configurations since the LinkUp 5294 will turn off its own echoplex during reconfiguration.

LINKUP 5294 WITH DL5294 FIRMWARE

8.3.1 PAD PARAMETERS

The X.25 host PAD should be optioned for no character echo, editing not used, and data forwarding after 20 milliseconds of inactivity. Option codes and their subscriptions are as follows:

1:0 No escape to PAD mode 2:0 No local echo 3:0 No character forwarding 4:2 Packet forwarding after 20 ms 5:1 LinkUp 5294 accepts X-ON/X-OFF from PAD 6:0 Suppress PAD messages 7:0 Ignore break from LinkUp 5294 8:0 Normal data delivery 9:0 No padding after CR 10:0 No line folding 11:x Baud rate (x corresponds to LinkUp 5294 port) 12:1 PAD accepts X-ON/X-OFF from LinkUp 5294 13:0 No LF insertion 14:0 No padding after LF 15:0 No editing 16-22:0 No editing

Setup options for the remote terminal PAD include local echo, no line editing, data forward on <Enter>, and data forwarding after 20 milliseconds of keyboard inactivity.

For a dedicated PAD these options are normally fixed at the time of installation. If a public network is used, a subscriber profile is generally created by the network to set the remote PAD options at the time the user requests connection. These options should be communicated to the PDN carrier at the time of subscription. Option codes and their descriptions are as follows:

1:1 Terminal can escape to PAD mode 2:1 Echo input 3:2 Forward on CR 4:2 Packet forwarding after 20 ms 5:1 Accept X-ON/X-OFF from PAD 6:1 Send PAD messages to terminal 7:0 Ignore break from terminal 8:0 Normal data delivery 9:0 No padding after CR 10:0 No line folding 12:1 PAD accepts X-ON/X-OFF from

terminal 13:0 No LF insertion 14:0 No padding after LF 15-24:0 No editing

CHAPTER 8: Packet Network Access Applications

8.4 Special Operational Considerations

During operation of a terminal through a PDN to the host computer, some characters and commands are echoed locally and are reflected on the terminal screen quickly. Others must be sent through the network to the host, processed, and sent back through the network before they are observed. In general, alphanumeric characters will echo immediately. The following functions must be processed by the host or the LinkUp 5294 and will take one to three seconds:

• Field Advance using <TAB>, <BACKTAB>, <FIELD EXIT>, <FIELD +>, or<FIELD -> Keys

• Cursor <HOME> and <NEW LINE>

• <CLEAR>

• Reset (usually <CTRL/R>)

• <DEL>, <ERASE INPUT> and those alphanumeric characters typed while in insert mode

• <Enter>, <ROLL UP>, <ROLL DOWN>, and <DUP>

• <SYS REQ> and <ATTN>

• <CMD> key sequences

• <SCREEN REFRESH> is useful if you suspect that the screen data may have been corrupted.

Also, when using one of the generic PNA options (1 or 2), nondisplay fields such as passwords will display due to local echo by the PAD. <SCREEN REFRESH> should be entered immediately after keying data in a non-display field, causing the LinkUp 5294 to remove it from the display. Other fields may then be completed as needed.

8.5 Other Special Considerations

8.5.1 SCREEN DISPLAY ERRORS

Because of local PAD echo, the terminal display may become garbled at times. To correct this condition, should it occur, use the <SCREEN REFRESH> sequence for your terminal. For most terminal types, this is accomplished by a <CTRL/W> or an <ESC W>. Refer to the Terminal User’s Handbook for the correct key sequence for your terminal type.

If the initial LinkUp 5294 port configuration is done while connected to the network, you will encounter locally echoed passwords and duplication of characters since the LinkUp 5294 default for PNA access is N (None). Once the port is configured, exit to Connect Mode, complete the connect sequence, and screen data should appear normally thereafter.

You should not observe double echo during subsequent configurations since the LinkUp 5294 will turn off its own echoplex during reconfiguration.

8.5.2 D

ATA FORWARDING TO THE PAD

Customers using PADs at remote locations to connect terminals to the PDN should check to see if the PAD supports escape forwarding. This capability recognizes an escape sequence from a terminal, does not echo it, and forwards the packet to the LinkUp 5294 after a specified time period. If possible, this method of data forwarding should be used to lessen the conflict of PAD echo and LinkUp 5294 echo of control sequences.

LINKUP 5294 WITH DL5294 FIRMWARE

9. Diagnostics

The first two section of this chapter review the on-line and off-line diagnostic capabilities of the LinkUp

5294. The third section will help you find and solve common problems you may encounter when you use the LinkUp 5294.

9.1 On-Line Diagnostics

The on-line diagnostic capabilities of the LinkUp 5294 include:

• Watchdog Timer

• Error Code displays

• Communication Line Status Indicators

• Remote Interface Signal Display

• Sync Port Address Trace

• Async Port Trace

• Sync Port Trace (deluxe model only)

The Watchdog Timer enables the LinkUp 5294 to monitor its own program execution continuously in the background of daily operations, assuring you of its overall system integrity. If a program execution fails, the LinkUp 5294 alerts you with an Error Code display. Error Code displays and Communication Line Status indicators are the LinkUp 5294 front panel LEDs. Each one of these will be discussed in the next two sections.

9.1.1 F

RONT-PANEL ERROR CODES

If a program-detectable error occurs, all channel status indicators on the front panel are turned off and a two-level error code is displayed by the two-digit channel display. The two error codes are flashed alternately. Table 9-1 describes the error code assignments currently implemented in the LinkUp 5294.

When an error code is displayed, pressing the RESET button will clear the error code and cause channel status display to resume. However, if more than one error has occurred, pressing RESET will clear the most recent error code and display the previous one. Preceding error codes can then be viewed by pressing RESET repeatedly until the channel status indicators resume their normal operation. This marks the end of accumulated errors. Once error codes are cleared, they cannot be redisplayed on the front panel.

9.1.2 F

RONT-PANEL STATUS INDICATORS

The LinkUp 5294 front panel lets you monitor a total of 13 different communication line status indicators for any port. If a problem occurs on one of the communication lines established on one of the LinkUp 5294 ports, you can troubleshoot that problem by scrolling to the affected port number (using the CHannel SELect control button) and then examining the displayed status indicators. If the appropriate status indicators are not lit, you will be able to target the line’s problem by trial and error.

Check the lights on the LinkUp’s front panel when you have a communication-line problem. By comparing which signals are lit to which signals should be lit, you may be able to isolate the problem. For your reference, Table 9-2 lists the front-panel signals, their definitions, and a brief explanation of when each should be lit.

CHAPTER 9: Diagnostics

Table 9-1. Front Panel Error Codes

CLASS FIRST CODE SECOND CODE DEFINITION

Hardware HA 00 Insufficient EEPROM for this Deficiency configuration.

HA 01 Insufficient RAM for this configuration.

System Errors Sy 00 CPU failure: watchdog timer timeout

SY 01 ROM failure: bad ROM cartridge.

EEPROM Chip EE 01 through 04 EEPROM chip defective. Chip number Error is identified by the second code.

System Parameter SP 00 EEPROM Header Error. Some or Error in all parameters stored in EEPROM may EEPROM be restored to default values. This error

occurs when unformatted EEPROM chips are encountered when the LinkUp 5294 is turned on.

SP 01 EEPROM failure in System section.

Default values are loaded.

Port Parameter Po 00 through 33 EEPROM failure in Port Parameters. Error in Second code indicates port number. EEPROM Default values are loaded for the

defective port.

Logical Unit LU 02 through 33 EEPROM failure in LU parameters. Parameter Error Second code indicates LU number. in EEPROM Default values are loaded for the

defective item.

Stack Overflow LS 02 through 33 Logical Unit Stack overflow. Second

code indicates the LU number.

LINKUP 5294 WITH DL5294 FIRMWARE

Table 9-2. Front Panel Communication Line Indicators.

INDICATOR DESCRIPTION

DCE Data Communications Equipment. Lit when the LinkUp 5294 has been logically

configured (in Configuration Mode) to implement a DCE device.

DTE Data Terminal Equipment. Lit when the LinkUp 5294 has been logically configured

(in Configurator Mode) to implement a DTE device.

TxD Transmit Data. Lit when a DTE device (or configured port) is transmitting data to an

attached DCE device (or configured port).

RxD Receive Data. Lit when a DCE device (or configured port) is transmitting data to an

attached DTE device (or configured port).

RTS Request To Send. An RS-232C signal. Lit when a DTE device (or configured port)

is sending this signal to a DCE device (or configured port).

CTS Clear To Send. An RS-232C signal. Lit when a DCE device (or configured port) is

sending this signal to a DTE device (or configured port).

DTR Data Terminal Ready. An RS-232C signal. Lit when a DTE device (or configured

port) is sending this signal to a DCE device (or configured port).

DSR Data Set Ready. An RS-232C signal. Lit when a DCE device (or configured port) is

sending this signal to a DTE device (or configured port).

CD Carrier Detect. An RS-232C signal. Lit when a DCE device (or configured port) is

sending this signal to a DTE device (or configured port).

RI/SYN Ring Indicate/Synchronized. A dual-function indicator: (1) An RS-232C signal. Lit

when a DCE device (or configured port) receives a ringing signal and notifies the attached DTE device (or configured port) of this; or (2) lit during a synchronous operation when the transmitted data is synchronized.

TxC Transmit Clock. Lit when synchronous transmit clock signals are detected by a DCE

device (or configured port).

RxC Receive Clock. Lit when synchronous receive clock signals are detected by a DCE

device (or configured port).

I/O FAULT Input/Output Faults. Flashes whenever the LinkUp 5294 detects framing, overrun, or

parity errors.

CHAPTER 9: Diagnostics

9.2 Off-Line Diagnostics

The Off-line diagnostic capabilities of the LinkUp 5294 include:

• Self diagnostics at power up

• Monitoring of LU and Port Assignment Status

• Character Display Test

• Character Echo Test

• Product Configuration and Levels display

• LU and Async Port Summary (deluxe model only)

• SNA/SDLC Counters (deluxe model only)

9.2.1 S

ELF DIAGNOSTICS

Prior to the execution of the continuous background testing by the LinkUp 5294 Watchdog Timer, a series of preliminary self-tests is performed every time your LinkUp 5294 unit is powered on. These tests enable the LinkUp 5294 to assure you that its vital parts (ports, memory, programs, etc.) are in working order.

During the power-on self-tests all the front panel LEDs are off and dr is displayed on the CHANNEL/ERROR LEDs. The LinkUp 5294 usually remains in this condition for approximately three seconds; it then returns to its normal front-panel LED displays, ready for operation. (The default port number displayed on the CHANNEL/ERROR LEDs is always 02.) If one or more of the internal tests fails, dr will remain in the CHANNEL/ERROR display and the front panel LEDs will indicate the nature of the failure. The coding is depicted in the list below.

• DCE LED Off — Watchdog Timer Error

• DTE LED Off — ROM Test Failure

• TXD LED Off — Data Bus Failure

• RXD LED Off — Address Bus Failure

• RTS LED Off — RAM Test Failure

• CTS LED On — At least 512K of RAM

• DTR LED Off — Sync 8530 Failure

• DSR LED Off — Async 8530 Failure

• DCD LED Off — Insufficient EEPROM

9.2.2 LU

AND PORT ASSIGNMENT STATUS

When you type STATUS at the Enter Item To Be Configured prompt while in Configurator Mode, the LinkUp 5294 responds by displaying a table containing the current operating status and port assignments of all 32 Logical Units. The information provided in this table enables you to isolate, at a glance, most interface problems you may encounter while operating the LinkUp 5294.

LINKUP 5294 WITH DL5294 FIRMWARE

NOTE

A similar table is accessible during Connect Mode by typing <?> in response to the Enter LU Number prompt.

To interpret the information contained in this table, refer to the following definitions:

• LU Type — Corresponds to the system LU Type 7 (display) or 4 (SCS printer).

• Status — The operating state of each LinkUp 5294 LU; for example, P for an LU which is pending disconnection, D for an LU which is disconnected, I for one being used, R for one that has been disconnected but can be reconnected, and U for an undefined LU.

• Sync Port — Refers to the synchronous port each LU is assigned to, such as Port 0 or 1.

• Sync Link # — The SDLC Link Number each LU has been associated to within its assigned synchronous port; for example, Link 0 or 1.

• LSID — The System/3X Local Station ID number associated with the LinkUp 5294 LU; for example, any value from 0 to 9, 0A to 0F.

• Async Port — The asynchronous port which the LU is coupled with; Port 2 through Port 33.

9.3 Finding and Identifying Problems

For assistance in troubleshooting the LinkUp 5294, see the list below. Common problems are listed in bold, followed by possible solutions.

A directly attached terminal does not communicate with the LinkUp 5294:

1. Verify that the terminal in question is optioned compatibly with the settings of the LinkUp 5294

port it is attached to. That is, set the terminal’s bit rate, parity, on-line mode, char. mode, full duplex, DTR on, DSR off, etc., to match the settings specified for the LinkUp 5294.

2. Make sure the RS-232C cable is connected to the proper port of the terminal, usually labeled as

COM or MODEM.

3. Check the front-panel signal LEDs on the LinkUp 5294 to be sure RTS, CTS, DTR, DSR and CD

are on. If this is not true:

A. Confirm that the attaching cable supports at least Pins 1–8 and 20.

B. Verify that the cable is not a crossover or modem cable.

C. Swap the cable in use with one known to be in working order.

4. Make sure the asynchronous port is optioned for DCE; that is, that it is a direct connection.

Verify that the flat reversible cable of the I/O card is also installed for a DCE interface (the DCE label should be visible).

CHAPTER 9: Diagnostics

A remotely attached terminal or printer does not communicate with the LinkUp 5294.

1. Ensure that the terminal/printer, the LinkUp 5294, and modems are all configured to support the

same baud rates.

2. Make sure the modem attached to the LinkUp 5294 is configured as follows:

A. To ignore modem commands.

B. Not to echo received characters.

For switched lines, the modem must also be configured as follows:

C. An auto-answer modem must pass RI (Ring Indicator, Pin 22) to the LinkUp 5294, and allow the

LinkUp 5294 to raise DTR in response to RI.

D. Loss of Carrier Detect must be enable. (causes modem to drop DSR if line becomes

disconnected).

E. External DTR must be enabled, (Data Terminal Ready, Pin 20) control. Causes modem to

disconnect from phone line if the LinkUp 5294 drops DTR.

3. The LinkUp 5294 requires RI (Ring Indicator) when used with auto-answer modems.

4. Make sure the asynchronous port of the LinkUp 5294 is configured as DTE (a remote connection).

The Host does not poll the LinkUp 5294.

1. Confirm that the host is on-line.

2. REMOTE CONNECT: Make sure the Sync port is configured for DTE. Also make sure that the BIT

RATE is set for EXT.

3. DIRECT CONNECT: Make sure the Sync port is configured for DCE. Also make sure the BIT RATE

is set for a specific rate (in keeping with the host configuration).

4. Review the LinkUp 5294 Sync port configuration with that of the Host systems. Pay particular

attention to Control Unit Address, HALF/FULL DUPLEX, NRZI, and CLOCKING.

5. Ensure that the RS-232C cable for the Sync port has, at a minimum, the following Pins: 1 through 8,

l5, 17, 20, and 22.

6. Ensure that a hardware reset has been performed since the last synchronous port changes were

made.

The Host is polling the LinkUp 5294, but the terminal does not receive a sign-on screen. Or instead, a 0099 error occurs.

1. Confirm that the host is indeed on-line. If yours is a remote connection, this necessitates calling the

host and the LinkUp 5294 site.

2. Normally this means the LU (Logical Unit) you are trying to access the Host through has not been

assigned to a valid Host Workstation ID. This may be because:

A. The valid Host address (LSID) has not been assigned to the LinkUp 5294 Logical Unit (LU)

through the LinkUp 5294 Configurator Mode.

B. The Host address (LSID) assigned to the LinkUp 5294 Logical Unit (LU) has not been assigned

on the host system (meaning it is an invalid LSID).

LINKUP 5294 WITH DL5294 FIRMWARE

C. The LinkUp 5294 Logical Unit was assigned to the incorrect Control Unit emulation (that is,

to SDLC Link Address).

D. A hardware reset has not been performed since the last synchronous port changes were made.

Once host sign-on screen appears and sign-on is entered, the host does not respond.

1. Make sure the correct key sequence for <Enter> is pressed.

The data displayed on the terminal screen is garbled or unintelligible.

1. Make sure the Terminal Module ID you entered at the Device Type prompt (or in Configurator

Mode, if this port parameter is defined as overridable) is the correct module ID for your terminal or terminal emulator.

2. Ensure that every device on the suspect communication line has compatible settings for character

and parity bits.

CHAPTER 10: Emulation Capabilities

10. Emulation Capabilities

The LinkUp 5294 emulates an IBM 525l model 12 Remote Workstation Controller, 5294 or 5394 Remote Cluster Controller. It is designed with a variety of Terminal and Printer Modules to let virtually any ASCII terminal or printer communicate with an AS/400 host computer as if it were actual IBM 5251 model 11 or 529x Workstation or 52xx Printers.

10.1 5250 Display Emulation

Each of the Terminal Modules supports all of the 5250 screen handling facilities of an actual 5251 model 11 or 529x workstation. This includes cursor-positioning and display attributes such as:

• Reverse Image

• Nondisplay

• Blink

• Column Separator

• High-intensity

• Underscore

The above attributes are supported only to the extent that your ASCII terminal can support them.

The LinkUp 5294 also uses many special techniques to optimize the emulation provided to your ASCII terminal:

• Screen Optimization — Instead of clearing and repainting your screen’s data for every update, the LinkUp 5294 updates your screen by clearing and repainting only for new character changes, keeping the amount of screen updating to a minimum.

• Terminal’s Unique Features — These are incorporated into the corresponding Terminal Module if they are proven advantageous. If not, the LinkUp 5294 compensates. To prevent those ASCII terminals with automatic scrolling capabilities from automatically scrolling, since an actual IBM workstation does not support this, the LinkUp 5294 restricts data from being entered to the last character position (row 24, column 80) on the terminal’s screen.

• Status Line — Five indicators are displayed on row 24 of your terminal’s screen while you are in session with the System/3X host (Emulation Mode). The LinkUp 5294 displays this line the first time your terminal enters Emulation Mode; afterwards, you may toggle it on (or off) using the appropriate key sequence (corresponding to the function of Toggle Status Line/Toggle Indicators.) These five indicators are listed below:

SYS AVAIL — System Available indicator is set (turned on) whenever the terminal is receiving polls from the System/3X host.

MSG WT — Message Waiting indicator, controlled by the host, is set (turned on) whenever you have messages waiting to be read.

INS MODE — Insert Mode indicator is set (turned on) whenever the INSERT key has been pressed. Insert Mode can be reset (turned off) by pressing the ERROR RESET or one of the Aid Generating keys.

INPUT INH — Input Inhibited indicator is set (turned on) after an Aid Generating key is pressed. This indicates the keyboard has been locked by the host and the operator should not type any data.

LINKUP 5294 WITH DL5294 FIRMWARE

The System/3X host will reset (turn off) this indicator after it has completed the requested data processing. (Operator errors will also set this indicator.) Only SYS REQ and ATTN are valid while input is inhibited.

AWFER — Awaiting Field Exit Required indicator is set (turned on) when data is entered into the last position of a field that the host has marked as requiring the function of Field Exit to be invoked. It is reset once the field is exited. (On an actual Model 11 workstation the cursor blinks to indicate AWFER.)

• Support for a 25th-line Status Line display is available for the following terminals: Hazeltine

Esprit™

10/51, Lear Siegler

ADM-ii, TeleVideo®925, Wyse®30, Cybernex XLB-5291, Rebus 3000, and

FileLynx

/5251. The status display is exactly the same as it had been on Line 24, and the Toggle

Status Indicators keystroke is accessed in the same manner.

Because of design characteristics of the Wyse 30 and the Cybernex XLB-5291, the ERROR nnnnmmmm portion of the Status Line in columns 64 through 79 of the 25th line is sometimes unable to display at the proper times. As this part of the Status Line is displayed only in the event of an error between the LinkUp 5294 and the System/3X this limitation should be of little or no consequence to you.

NOTE

Although the Status Line displays on Row 24, the LinkUp 5294 does not cause normal data to be lost at its expense. Instead, whenever the host or terminal operator attempts to write data to that row, the LinkUp 5294 automatically turns the Status Line off and displays the normal data.

10.2 5250 Keyboard Functions

Most of the 5250 keyboard functions are implemented by the LinkUp 5294 modules in a manner most suited to the keyboard layout of the particular terminal the module is designed for. See Appendix G for the module-specific key sequences of each function.

These are the 5250 keyboard functions supported by the LinkUp 5294:

Cursor Movement Keys

• Character Backspace moves the cursor left one position, while always keeping the cursor in a non- bypass field. If the cursor is at the beginning of a field, pressing this key moves the cursor to the last position of the previous non-bypass field.

• Cursor Up/Down moves the cursor vertically one line, wrapping around the screen if necessary.

• Cursor Left/Right moves the cursor horizontally one space, wrapping to the next or previous row if necessary.

• Cursor Fast Left/Fast Right causes the cursor to move horizontally three spaces, wrapping to the next or previous row if necessary.

• Field Advance positions the cursor at the start of the next unprotected field, wrapping around the screen if necessary.

• Field Backspace moves the cursor to the start of the previous non-bypass field.

• New Line positions the cursor at the start of the first non-bypass field on the next line.

CHAPTER 10: Emulation Capabilities

Special Control Keys

• Delete deletes the character over the cursor and moves all remaining characters in the field one position to the left.

• Erase Input clears all non-bypass fields you have modified.

• Error Reset clears your terminal of the following conditions: (l) insert mode, (2) error messages, usually displayed on row 24, or (3) a system request state, as when SYS REQ is pressed.

• Home moves the cursor to the position defined by the host as home. Usually, this is the start of the first field on the screen. If the cursor is already at this position, the key performs a Record Backspace function, which requests a display of the previous record in a file or database.

• Insert sets the insert mode for the current field. Insert must be reset before you can exit the field.

Field Exit Keys

• Duplicate causes duplicate characters (displayed as asterisks on ASCII terminals) to be written from the cursor position to the end of the field.

• Field Exit and Field Plus perform the same function; they erase all characters to the end of a field, then move the cursor to the next non-bypass field. If invoked on a signed-numeric field, they also write a null to the sign position of the field, creating a positive number, and when invoked in rightadjust fields they align the data entered to the field to the right.

NOTE

Most of the Terminal Modules support only EXIT.

• Field Minus is only valid in signed-numeric and numeric-only fields. It generates a negative number by writing a hyphen to the sign position in the case of a signed-numeric field; for a numeric-only field, the last character of the field is changed from a digit to an alpha character (D-zoned) to signify a negative number.

Aid Generating Keys

• Clear is application-specific, but is usually used to clear the screen.

• Enter Rec/Adv transmits the data entered on the screen to the host.

• Help. When used while an error (0005, etc.) is displayed, this key requests information on the error that occurred; otherwise, its actions depend on the application you are in.

• Command Function Keys 1-24 are entirely application-specific, but usually CMD 7 cancels the current application and CMD 3 displays the previous screen (except on a System/34).

• Print prints the contents of your screen to the console’s default printer.

• Roll Up/Down is also application specific, but is usually used to roll the data up or down; that is, to select the previous or next page of text.

Special Host Keys

• System Request allows you to sign onto a System/34 host only, or to toggle between Console and Subconsole Modes for each of the System/3X hosts, providing the workstation is so configured.

Signal Key

• Attention is often used to terminate the currently running program.

LINKUP 5294 WITH DL5294 FIRMWARE

10.3 LinkUp 5294 Extended Keyboard Functions

The following eight extended keyboard functions are specific to the LinkUp 5294. See Appendix G for the module-specific key sequences of each function.

• Local Copy Print Request prints the contents of your screen to a printer configured and assigned to your terminal (in the LinkUp 5294) as a Local Copy printer.

• Local Copy Form Feed sends a form feed command to the printer configured and assigned to your terminal (in the LinkUp 5294) as a Local Copy printer.

• Cancel Print cancels a print request sent to a printer configured and assigned to your terminal (in LinkUp 5294) as a Local Copy printer.

• Refresh Screen redisplays the last transmitted CRT screen from the screen buffer stored within the LinkUp 5294. This key is useful when your terminal’s display is garbled due to line errors.

• Toggle Status Line/Toggle Indicators toggles the display of the LinkUp 5294 status line of five indicators (discussed in Section 1.1).

• Toggle Echoplex Enabled toggles the ability of the LinkUp 5294 to echo characters to your terminal’s screen, providing this toggle has been configured in the LinkUp 5294.

• Initialize Terminal causes the terminal to reinitialize without resetting the LinkUp 5294 port your terminal is attached to. In other words, you are exited from the System/3X host session (referred to as Emulation Mode) and returned to the LinkUp 5294 sign-on menu (referred to as Connect Mode) even if the LinkUp 5294 has been configured to suppress this screen. When this function is invoked, the host is informed that the workstation’s power has been turned off.

• Request Disconnect is similar to Initialize Terminal in that it exits you from the AS/400

host session (Emulation Mode). However, unlike Initialize Terminal it resets the LinkUp 5294 port your terminal is connected to. When your terminal is connected to the LinkUp 5294 by a modem, this function will cause the modem to hang up, disconnecting your terminal. Again, when this function is invoked the host is informed that the terminal has been powered off.

10.4 Printer Support: System vs. Local Copy

As previously mentioned, each of the Printer Modules enables ASCII printers to appear to the System/3X or AS/400

host as though they were actual IBM 5224, 5225, or 5256 Printers. The

operational mode of these modules can be defined as a System printer or as a Local Copy printer.

A System printer is one that accepts print jobs from the System/3X or AS/400 host. A Local Copy printer is one which accepts a command from you to print the contents of your terminal screen. To invoke a local copy print request, you must press the special key sequence (appropriate to your selected Terminal Module) corresponding to the extended function of Local Copy Print Request.

If the following conditions are not met, a Local Copy Print Request will be ignored and no error message will display:

• The printer must be defined in the LinkUp 5294 as a Local Copy printer.

• The defined Local Copy printer must be associated to your terminal (either by your system operator or by your sign on to the LinkUp 5294 during Connect Mode).

• The printer must not be currently printing another terminal operator's screen (if the same printer is assigned to more than one terminal).

CHAPTER 11: Hardware and Software Requirements

11. Hardware and Software Requirements

This chapter describes the various ASCII terminal and printer types supported by the LinkUp 5294 and recommends which Terminal and Printer Module to use with each. General switch or configuration settings for your terminal, printer, or modem (if a remote connection must be established with the LinkUp 5294 ) are also reviewed.

11.1 ASCII Terminals

The following list identifies the ASCII terminals currently supported by the LinkUp 5294. Additionally referenced are the Terminal Module IDs recommended for use with each terminal listed.

Once you have identified the Terminal Module appropriate for your terminal, see Appendix G for that module's list of key sequences for invoking the 5250 and extended keyboard functions. If the terminal you wish to use is not listed, please call your supplier to verify whether it is supported, and if it is, how.

Manufacturer Terminal Module ID

ADDS

Regent®and Viewpoint VIEWP Viewpoint 60 VP60

AMPEX

210/230 TV925 219 VT100

Anderson Jacobson

AJ-520 VT52 or VT100

ANSI Standard 3.64 Any ANSI Standard

3.64 compliant terminal ANSI

Beehive

ATL-008 VT100

C-Itoh

101 VT100 C7101 C7101 C7103 C7103

Colorgraphic MVI-100 VT100

Cybernex XLB-5291 CY5291

Data General DASHER

D100/D200 D200

Datamedia DT80/1,DT80/2 VT100

DT80/3 TV925 DT80/5 VT100 Colorscan 10 VT100

LINKUP 5294 WITH DL5294 FIRMWARE

Manufacturer Terminal Module ID

DEC™ VT52™ VT52 or VT52X

VT100™/VT101™ VT100 VT102™/VT125™/VT131™ VT220™/VT240™ VT220

Direct VP800C VT100

Falco TS-l VT52

Fame-100 VT100 Fame-II ANSI

Hazeltine Esprit ADM3A

Esprit III TV925 Esprit 10-51 HZSl

Hewlett-Packard HP

-2621AJ2645 HP45

IBM 3101 I3101

3151 I3151 316V3163 I3161 3164 I3164

Informer 30V401 VT52 or I3101

KDE 802 VT52

Lear Siegler ADM-3A ADM3A

ADM-5 ADM3P ADM-ll ADMll ADM-21/22/23/24 ADM21 ADM-36 VT100 ADM-42 ADM3P

Liberty Electronics Freedom

100 TV925

MicroTerm ACT-SA ACTSA

MIME-2A VT52 MIME-740/Ergo 4000 VT100 Ergo 201 VT52 or TV925 Ergo 301 VT52 or VT100

MVI 7 VT100

NCR

7901 VIEWP

Northern Telecom Displayphone DISPH

QUME

QVT-102 ADM3A

Radio Shack

DT-1 TV910

Rebus 3000 REBUS

Scanset Scanset SCANS

Soroc™ IQ120 IQ120

CHAPTER 11: Hardware and Software Requirements

Manufacturer Terminal Module ID

TAB 132 VT52

132/15 VT100

TELERAY

VT52

TeleVideo 910 TV910

910 + /912 TV9lOP 920/925/950 TV925 970 TV970 Personal Terminal TV910

Telex 310 I3101

Visual 100/300/400 VT100

110 D200 50/200 ADM3A or VT52

Wyse WY-100 WY100

WY-30 WY30 WY-60 WY60 WY-60 w/extended keyboard WY60X

Xpoint Remote 91 HZSl

Zenith

Z-l9 VT52 or VT100 ZT-l VT52

Zentec Zephyr TV925

For those terminals whose switch settings are not explicitly detailed in Appendix G, the following general terminal settings are recommended:

• Character Mode = ON (as opposed to Block or Line Mode)

• Full Duplex = ON

• Auto New Line = OFF (if switch-selected)

• Auto Line Feed = OFF

• Cursor addressing = ON

• Auto Scroll = OFF (if switch-selected)

• DTR and DCD = ON, DSR = OFF (if switch- selected)

• Baud Rate = LinkUp 5294 configured settings

• Word Length (i.e., Data Bits, Parity, and Stop Bits) = LinkUp 5294 configured settings (most commonly implemented as 8 data bits, no parity, and 1 stop bit)

• Keyboard must be decoupled from the display (if switch-selected)

LINKUP 5294 WITH DL5294 FIRMWARE

NOTE

The LinkUp 5294 must handle all screen changes to your terminal. Set your terminal so that whenever you press a key on your keyboard its character is transmitted directly to the LinkUp 5294, rather than to the terminal’s display. This setup is called Conversational Mode. If your terminal’s keyboard cannot be decoupled from its display (Conversational Mode = ON), then avoid using those keys which locally affect the display. If you do not, the result is a garbled display, requiring you to invoke the LinkUp 5294's extended keyboard function for Refresh Screen.

11.2 Personal Computers and Word Processors

The LinkUp 5294 also enables Personal Computers (PCs) and Word Processors (WPs) to emulate 5250 display workstations. However, in order for the LinkUp 5294 to accomplish this, the PCs and WPs must be equipped with software enabling them to emulate one of the ASCII terminals supported by the LinkUp 5294.

The following list identifies a variety of PCs and WPs currently supported by the LinkUp 5294, plus suggested terminal emulation software packages for each. Also listed are the Terminal Module IDs recommended for use with each of the suggested software packages.

Once you have identified the Terminal Module appropriate for your PC or WP, see Appendix G for the corresponding list of key sequences specified for that Module, enabling you to invoke the 5250 and extended keyboard functions. If the PC or WP you wish to use is not referenced, please check with your supplier to verify whether it is supported and, if it is, how.

Computer Software Package Module ID

Apple

IIe/IIc Softerm Package ADM3P

Apple III Apple Access III ADM3P

Apple Lisa Included with Lisa VT100

AT&T 6300 Andrew Corporation IBM PC IBMPC or T5250

Program

Columbia Andrew Corporation IBM PC IBMPC or T5250

Program

COMMODORE

64 VIP Terminal Emulator VT52

Softlaw Corp

COMPAQ

Andrew Corporation IBM PC IBMPC or T5250 Program

CPT CPT VT52 Package VT52

DEC Rainbow™ VT180 Comm. Package from DEC VT100

Direct Included in computer VT100

EXXON

EXXON TV925 package TV925

Fortune ITE package TV925

CHAPTER 11: Hardware and Software Requirements

HP-200 series HP Terminal Emulator program HP45

IBM PC IBM PC Program T5250

IBM AT

IBM PC Program T5250

Computer Software Package Module ID

IBM PC Convertible IBM PC Program T5250

IBM PC Jr. IBM PC Program T5250

Kaypro

Superterm Package ADM3P

Leading Edge

PC IBM PC Program T5250

Radio Shack Model-II Radio Shack ADM3A Emulator ADM3P

Sperry PC IBM PC Program T5250

TIProf. Comp. Octacomm/PCHouston VT100

Toshiba

3100 IBM PC Program T5250

Vector Graphic Gulf Data ADM3A Package ADM3P

Victor

9000 ASCOM Async Package ADM3A

Xerox

820 ASCOM Async Package ADM3P

Xerox 820-II Included vith computer ADM3P

Zenith Z-89/90/100 Zenith Terminal Package VT52

Zenith Z-150 IBM PC Program T5250

11.3 Auxiliary Attached ASCII Printers

Some terminals and PCs are equipped with an auxiliary port (serial or parallel) to which you may attach an ASCII printer. The LinkUp 5294 supports this application through a special Auxiliary Printer facility. This facility enables your terminal or PC and its attached auxiliary printer to share a single port on the LinkUp 5294 and still be separately addressed by the System/3X host. This is accomplished by interleaving the data between both devices, with the terminal or PC having priority over the printer.

As far as the LinkUp 5294 or the System/3X host is concerned, an auxiliary printer is no different from a printer which is actually directly connected. With the help of the LinkUp 5294, the auxiliary printer can also emulate one of the IBM 52xx Printers as either a System or Local Copy printer.

LINKUP 5294 WITH DL5294 FIRMWARE

The following ASCII terminals and PCs will support an auxiliary printer:

ADDS Viewpoint and Viewpoint 60 Beehive DM-20 C. Itoh 7101 and 7103 Cybernex XLB-5291 DEC VT52, VT52X, VT100 (VT102),VT220 Hazeltine 10/51 IBM 315l, 3161, 3163, 3164 IBM Personal Computer Lear-Siegler ADM-3A, ADM-21, ADM-l 1 Microterm ACT-5A Rebus 3000 Soroc

IQ120 TeleVideo 910, 910 Plus, 925, 970 Tymshare Scanset Wyse 30, 6S), 100

The following list identifies the ASCII printers currently supported by the LinkUp 5294. In the righthand column, you will find the printer module recomended for each printer.

Manufacturer Model Module ID

Centronics

351 or 359 CENTRN

C. Itoh 300 or 600 CI300

Data Products SPG8050 DP8050

General Electric GE3000 GE3000

Genicom 3410 GEN34

4410, 4440 GEN44

Epson RX/FX/MX/JX/80/100 EPSON

Hewlett-Packard LaserJet series HPGEN

HPDPL HPDPP

OKIDATA

MicroLine 8V83/84/9V93 OKIM84

Most others (Generic Support) PRINT

Three printer drivers have been included to support the Hewlett-Packard LaserJet

printers. The printer

IDs for the three are:

• HPDPL - HP Data Processing Landscape mode

• HPDPP - HP Data Processing Portrait mode

• HPGEN - HP Generic

CHAPTER 11: Hardware and Software Requirements

These drivers provide all the functionality of the PRINT driver and, in addition, support the SCS commands Set Line Density and Set Character Density. The need for these drivers arises from the LaserJet characteristic of not allowing any data in a border margin of approximately V4 of an inch. This means that the usable space within the 8

⁄2" x l1" form is actually only about 8" x 101⁄2". To provide a full 66 lines per page capability, therefore, the data must actually be compressed further than the normal six (6) lines per inch.

The HPDPL driver provides 66 or 88 lines per page and 132 or 198 characters per line in Line Printer font.

The HPDPP driver provides 66 or 88 lines per page and 80 characters per line in Courier font or 132 characters per line in Line Printer font.

The HPGEN driver provides true 6 or 8 lines per inch and true 10 or 15 characters per inch. It should not affect the prior font or data orientation: that is, if your LaserJet was previously in Landscape and Courier, this driver will leave your printer at that state.

Not all LaserJet printers support the Line Printer font. The compression of data as performed by these drivers may yield less than the desired result. If this is the case, either Line Printer font should be made available on your LaserJet or data compression should be avoided.

If you are using an ASCII printer, be sure to confirm that the switch settings of the printer match those defined in the LinkUp 5294; for example, the RS-232C line signals for physical flow control (Not Busy Signal) and device ready (online signal), or the printer's logical flow control code.

11.4 Asynchronous Modems

When your terminal or PC (and auxiliary printer, if appropriate) are remotely located from the LinkUp 5294, they must communicate with the LinkUp 5294 over switched or dedicated lines in full-duplex mode with asynchronous modems. To assure that this remote connection is operating optimally, be sure to confirm that your modems are set up as follows:

• The DCD line state should not be held artificially high

• The modem should hang up when DTR drops.

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