Patton 3028 Turbo User Manual

STATISTICAL MULTIPLEXER

Doc #: 154001UA

Part #: 07M3028-A

3028 Turbo

(CTS 2031

INSTALLATION AND OPERATIONS MANUAL

May 31, 2000

TURBO

)

An ISO-9001

Certified Company

STATISTICAL MULTIPLEXER

Doc #: 154001UA

Part #: 07M3028-A

3028 Turbo

(CTS 2031

INSTALLATION AND OPERATIONS MANUAL

TURBO

)

An ISO-9001

Certified Company

PrefacePreface

Preface

PrefacePreface

AUDIENCE ANDAUDIENCE AND

AUDIENCE AND

AUDIENCE ANDAUDIENCE AND OBJECTIVESOBJECTIVES

OBJECTIVES

OBJECTIVESOBJECTIVES

RELATED DOCUMENTSRELATED DOCUMENTS

PROPRIETARY NOTICEPROPRIETARY NOTICE

PROPRIETARY NOTICE

PROPRIETARY NOTICEPROPRIETARY NOTICE

SERVICESERVICE

SERVICE

SERVICESERVICE

This manual contains information about the installation and operation of the

3028Turbo (CTS 2031 Turbo) Statistical Multiplexer. The manual is intended for

use by the technician installing the equipment and the operator using the equip-

ment. This manual assumes that its user is familiar with basic telecommunica-

tions and computer terminology.

2980-A2-GN30 DCX 840 Installation, Operation and Maintenance Manual

2985-A2-GN30 DCX 840 Installation, Operation and Maintenance Manual

The information contained herein is proprietary and confidential to Patton

Electronics Co. Any reproduction or redistribution of this publication, in whole or

in part, is expressly prohibited unless written authorization is given by Patton

Electronics Co.

Patton Electronics Co. (hereafter referred to as Patton) warrants that its equipment

is free from any defects in materials and workmanship. The warranty period shall

be two years from the date of shipment of equipment. Pattons sole obligation

under its warranty is limited to the repair or replacement of the defective equip-

ment. This warranty will not extend to equipment subjected to accident, misuse,

alterations or repair not made by Patton or authorized by Patton in writing.

All warranty and non-warranty repairs must be returned freight prepaid and

insured to Patton Electronics. All returns must have a Return Materials Authoriza-

tion number on the outside of the shipping container. This number may be ob-

tained from Patton Electronics Technical Services at:

PUBLICATION NOTICEPUBLICATION NOTICE

PUBLICATION NOTICE

PUBLICATION NOTICEPUBLICATION NOTICE

Tel: (301) 975-1007;

email: support@patton.com;

or, Web: http://www.patton.com.

NOTE: Packages received without an RMA number will not be accepted.

Patton Electronics technical staff is also available to answer any questions that

might arise concerning the installation or use of your Patton devices. Technical

Service hours: 8AM to 5PM EST, Monday through Friday.rations or repair not

made by Patton or authorized by Patton in writing.

This manual has been compiled and checked for accuracy. The information in this

manual does not constitute a warranty of performance. Patton reserves the right to

revise this publication and make changes from time to time in the content thereof.

Patton assumes no liability for losses incurred as a result of out-of-date or incorrect

information contained in this manual.

DCX is a trademark of AT&T Paradyne.

ENQ/ACK is a registered trademark of Hewlett-Packard Corporation.

Paradyne in a registered trademark of AT&T Paradyne.

Tandem is a registered trademark of Tandem Corporation.

T-Pause is a registered trademark of Tandem Corporation.

Wang is a registered trademark of Wang Laboritories, Inc.

2030 Statistical Multiplexer is a registered trademark of AT&T Paradyne.

154001UA i

WARRANTIES: Patton Electronics Co. (hereafter referred to as Patton) warrants that its

equipment is free from any defects in materials and workmanship. The warranty period

shall be two years from the date of shipment of equipment. Pattons sole obligation

under its warranty is limited to the repair or replacement of the defective equipment,

provided it is returned to Patton, transportation prepaid, within a reasonable period. This

warranty will not extend to equipment subjected to accident, misuse, alterations or repair

not made by Patton or authorized by Patton in writing.

WARRANTY NOTICEWARRANTY NOTICE

WARRANTY NOTICE

WARRANTY NOTICEWARRANTY NOTICE

The Patton MSDs generate and use 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 and television reception. The Patton MSDs have been tested and

found to comply with the limits for Class A computing devices in accordance with the

specifications in Subpart J of Part 15 of FCC rules, which are designed to provide reason-

able protection from such interference in a commercial installation. However, there is no

guarantee that interference will not occur in a particular installation. If the Patton MSDs

do cause interference to radio or television reception, which can be determined by

disconnecting the cables, the user is encouraged to try to correct the interference by one

or more of the following measures: moving the computing equipment away from the

receiver, re-orienting the receiving antenna, and/or plugging the receiving equipment

into a different AC outlet (such that the computing equipment and receiver are on

different branches).

The CE symbol on your Patton Electronics equipment indicates that it is in compliance

with the electromagnetic Compatibility (EMC) directive and the Low Voltage Directive

(LVD) of the European Union (EU). A Certificate of Compliance is available by contacting

Technical Support.

RADIO AND TVRADIO AND TV

RADIO AND TV

RADIO AND TVRADIO AND TV

INTERFERENCEINTERFERENCE

INTERFERENCE

INTERFERENCEINTERFERENCE

CE NOTICECE NOTICE

CE NOTICE

CE NOTICECE NOTICE

7622 Rickenbacker Drive

Gaithersburg, Maryland 20879

Phone 301 975-1000 FAX 301 975-1007

154001UAii

able of Contentsable of Contents

able of Contents

able of Contentsable of Contents

1. Introduction and Setup

Overview ......................................................................................................... 1-1

Equipment supplied ..................................................................................... 1-3

Equipment Required But Not Supplied ..................................................... 1-3

Product Terminology .................................................................................... 1- 3

Unpacking and Setup ................................................................................... 1-4

Multiplexer Factory Defaults ....................................................................... 1-5

EIA Signals ..................................................................................................... 1-6

2. Operation of the 3028 Turbo Multiplexer

Overview ......................................................................................................... 2-2

Supervisory Function Overview ................................................................. 2-2

Front Panel Operation .................................................................................. 2-3

Terminal Operation ....................................................................................... 2-5

Modes of Operation ....................................................................................... 2-5

Standby Mode/Logoff .................................................................................. 2-6

Monitor Mode ................................................................................................ 2- 6

Memory Capability ........................................................................................ 2-10

Command Mode ............................................................................................ 2-10

Resetting The Multiplexer ............................................................................ 2-75

Appendices

A. Multiplexer Command Mode Summary ........................................... A-1

B. Technical Specifications ..................................................................... B-1

C. ASCII Character Codes ....................................................................... C-1

D. Multiplexer Parity Options ................................................................. D-1

E. Hewlett-Packard Protocol ................................................................... E-1

F. Tandem T-Pause and Wang Flow Control Methods ...................... F-1

G. Flow Control Translation .................................................................... G-1

H. Factory Hardware Option Settings.................................................... H-1

I. SDLC/HDLC Protocol ......................................................................... I-1

J. EIA Signal Exceptions ......................................................................... J-1

K. Rack-Mount Installation ..................................................................... K-1

L. Vorbereitungen zur Inbetriebnahme der Gerate .............................. L-1

Index

154001UA iii

1. Introduction and Setup

20311-1

Supervisor

DCX Network Application

302 8Turbo

STATISTICAL

MU L TI PLEX ER

302 8Turbo

STATISTICAL

MU L TI PLEX ER

302 8Turbo

STATISTICAL

MU L TI PLEX ER

Point to Point Application

Supervisor

302 8Turbo

STATISTICAL

MU L TI PLEX ER

302 8Turbo

STATISTICAL

MU L TI PLEX ER

1.1.

OVERVIEWOVERVIEW

OVERVIEW

OVERVIEWOVERVIEW

Introduction and SetupIntroduction and Setup

Introduction and Setup

Introduction and SetupIntroduction and Setup

Overview .................................................................................................................................................. 1-1

Product Terminology .............................................................................................................................. 1-3

Equipment Supplied ...............................................................................................................................1-3

Equipment Required But Not Supplied ..............................................................................................1-3

Unpacking and Setup .............................................................................................................................1-4

Multiplexer Factory Defaults ................................................................................................................ 1-5

EIA Signals ............................................................................................................................................... 1-6

The 3028 Turbo (CTS 3028 Turbo (CTS 2031 Turbo)) Statistical Multiplexer has two

primary applications: Point-to-Point and DCX networking (Figure 1-1). Point-to-

Point operations in a single link environment supports up to eight terminals. All

of the DCX networking applications, including direct connections to a DCX 840 or

DCX 850 are supported. The 3028 Turbo (CTS 3028 Turbo (CTS 2031 Turbo)) also

supports the onward linking facilities through a DCX 825/871.

The SDLC/HDLC protocol is a standard feature that supports the bit-oriented

synchronous protocols.

154001UA 1-1

Figure 1-1. Multiplexer Product Application ExamplesFigure 1-1. Multiplexer Product Application Examples

Figure 1-1. Multiplexer Product Application Examples

Figure 1-1. Multiplexer Product Application ExamplesFigure 1-1. Multiplexer Product Application Examples

2031 Turbo Statistical Multiplexer

The multiplexer combines data traffic from up to eight sources into a high-speed

composite link. Channel speeds supported are from 75bps to 19,200bps with an

automatic channel speed detection (AUTOBAUD) option up to 9,600bps. The

buffer management allows storage of 16K bytes to be shared on demand by the

channels. Each channel is assigned a minimum of 372 bytes of buffer space to

prevent lockout. Because of the buffering action of the 2031, the data rates on the

channel side of the multiplexer may total several times the actual link rate without

data loss. The multiplexer will handle an aggregate of 76,800 bps in constant full-

duplex traffic (with flow control) and a 64,000K bps link without loss of data.

The multiplexer can transmit control messages end-to-end to handle such things

as break propagation, EIA signal propagation, and autobaud speeds. The control

messages are transparent to the user. In addition, any of the EIA interface outputs

can be forced high or low through the user interface.

Multiplexer configuration and operation monitoring is accomplished in a variety

of ways. An ASCII asynchronous terminal can be attached to the supervisory port

on the back panel or to a data channel that has the supervisory access enabled, or

the front panel push-buttons and LCD display can be used. Another method of

access is from a remote multiplexer in a point-to-point or a DCX network applica-

tion. Access to the supervisory function can be password protected for security.

All parameters are contained in nonvolatile storage.

The 3028 Turbo (CTS 3028 Turbo (CTS 2031 Turbo)) multiplexer is designed to be a

cost-effective point-to-point multiplexer. At the same time, it is fully compatible

with the CTS 2031 and the AT&T Paradyne DCX family of multiplexers and can

serve as an 8-channel node in a DCX network.

154001UA1-2

1. Introduction and Setup

PRODUCTPRODUCT

PRODUCT

PRODUCTPRODUCT TERMINOLOGYTERMINOLOGY

TERMINOLOGY

TERMINOLOGYTERMINOLOGY

The following terms are used when referring to the multiplexer:

CHANNEL

LINK The high-speed composite multiplexed interface.

CHANNEL

PORT

LINK PORT The physical interface for a link.

SUPERVISORY

PORT

DCE Data Communication Equipment -- This can be any

DTE Data Terminal Equipment -- This can be any terminal or

One of the eight possible low-speed port interfaces.

The physical interface for a channel.

The connector reserved for supervisor functions, such

as configuring channel parameters or monitoring status

and statistics.

Modem attached to the multiplexer on the Composite

port.

host attached to the multiplexer on a channel port.

EQUIPMENTEQUIPMENT

EQUIPMENT

EQUIPMENTEQUIPMENT SUPPLIEDSUPPLIED

SUPPLIED

SUPPLIEDSUPPLIED

EQUIPMENTEQUIPMENT

EQUIPMENT

EQUIPMENTEQUIPMENT REQUIRED BUTREQUIRED BUT

REQUIRED BUT

REQUIRED BUTREQUIRED BUT NOT SUPPLIEDNOT SUPPLIED

NOT SUPPLIED

NOT SUPPLIEDNOT SUPPLIED

LCD Liquid Crystal Display -- This is located on the front

panel of the 3028 Turbo (CTS 3028 Turbo (CTS 2031

Turbo)). It displays two lines of 16 characters each.

NETWORK

APPLICATION

POINT-TO-POINT

APPLICATION

A shielded, Male to Female, straight through cable is supplied to connect the

multiplexer Composite Port to an external modem.

Customer-supplied RS-232-C I/O cables from each DTE to standard EIA 25-pin

female connectors are required. A special cable is needed when using the

Tandem T-Pause® Flow Control application (refer to Appendix F).

Modem tail circuit applications require crossover cables (Figure 1-3).

This term refers to the use of the 3028 Turbo (CTS 3028

Turbo (CTS 2031 Turbo)) multiplexer in a network of one

or more DCX devices.

This term refers to the use of the 3028 Turbo (CTS 2031

Turbo) multiplexer in direct communications with

another 3028 Turbo (CTS 2031 Turbo) multiplexer. This

application involves only two devices.

Note

Shielded RS-232-C I/O cables

are required.

154001UA 1-3

2031 Turbo Statistical Multiplexer

The following lists the procedure for unpacking and setting up the 3028 Turbo

(CTS 2031 Turbo).

1. Remove the 3028 Turbo (CTS 2031 Turbo) from the box and place it on a

flat surface.

2. MODEM CONNECTION. Connect the supplied composite link cable to

the port labeled COMPOSITE on the rear panel (Figures 1-2) and then to

the modem. The Composite port is configured as a DTE to allow use of a

shielded, Male to Female, straight through cable to connect the Modem.

3. Connect the customer-supplied shielded, Male to Male, RS-232-C cables to

the selected ports and the DTEs, respectively.

4. The voltage selector is set to the proper line voltage for the area of the

world where the unit will be used at the factory. For the United States the

switch is set to 115V. Plug the female end of the power cable into the

receptacle on the rear panel and connect the other end to the power source.

The unit is operational when the POWER LED lights.

5. After the 3028 Turbo (CTS 2031 Turbo) has been attached to the proper

power source, it performs a series of tests to insure the integrity of the

system components. If the tests are passed, the multiplexer LCD displays:

UNPUNP

ACKING ANDACKING AND

UNP

ACKING AND

UNPUNP

ACKING ANDACKING AND

SETUPSETUP

SETUP

SETUPSETUP

SYSTEM READY

00:00:00

20312-51

and the system configuration can be performed. If any of the tests fail, the

LCD displays a message (refer to System Error Messages section). When

this message is displayed, cycle the power. If the error occurs again

contact your CTS service representative.

6. Connect a standard ASCII terminal, if used, to the 3028 Turbo (CTS 2031

Turbo) using a customer-supplied, straight-through, RS-232-C I/O cable at

the port labeled SUPERVISORY.

STATISTICAL

MULTIPLEXER

DATA LINK F LO W

POWE R LOSS DOWN CON TRO L

COMPOSI T E

SU PE R VISOR Y

PORT 7

PORT 8

PORT 5

PORT 6

PORT 3

PORT 4

Note

Shielded RS-232-C I/O cables are required.

TU RBO

PORT 1

PORT 2

3028

NEX T L AST SEL M ON/ CL

CAUTIO N:

FOR CONTINUED

PROTECTION A GAINST

RISK OF FIRE

RE PLAC E ON L Y

WITH SAME TYPE

OF FUSE

Figure 1-2. Front & Rear Panel, Model 3028TurboFigure 1-2. Front & Rear Panel, Model 3028Turbo

Figure 1-2. Front & Rear Panel, Model 3028Turbo

Figure 1-2. Front & Rear Panel, Model 3028TurboFigure 1-2. Front & Rear Panel, Model 3028Turbo

20311-2

154001UA1-4

1. Introduction and Setup

Connect the terminal to the power source and turn on the terminal.

PRESS: <supervisor logon character>

(default = CTRL + V)

The System Menu is Displayed

Check the following items if the System Menu does not appear.

 Terminal cabling

 Terminal power switch ON

 Terminal speed 9600 (refer to terminal manual)

 Multiplexer <supervisory logon character> is decimal 022

(default = CTRL + V) (refer to Appendix D)

 Multiplexer stop bits (refer to Chapter 2)

 Multiplexer parity (refer to Appendix D)

For additional information on these items refer to the indicated chap-

ters.

MULMUL

TIPLEXERTIPLEXER

MUL

TIPLEXER

MULMUL

TIPLEXERTIPLEXER

FACTORFACTOR

FACTOR

FACTORFACTOR DEFDEF

AULAUL

DEF

AUL

DEFDEF

AULAUL

TSTS

The multiplexer is configured at the factory with a set of default parameters.

Refer to Tables 1-1 and 1-2 for the default settings.

If you want to change any of the multiplexer parameters, refer to the appropri-

ate paragraph in Chapter 2.

Table 1-1. Supervisory Port DefaultsTable 1-1. Supervisory Port Defaults

Table 1-1. Supervisory Port Defaults

Table 1-1. Supervisory Port DefaultsTable 1-1. Supervisory Port Defaults

COMMAND PARAMETER

SUPERVISORY PARAMETERS

SPEED 9600

DATA BITS 8 STOP BITS 1 PARITY NONE/SPACE RV FL CTL NONE (Reverse Flow Control)

DEFAULT

SETTING

154001UA 1-5

2031 Turbo Statistical Multiplexer

Table 1-2. Channel Port Default Configuration SettingsTable 1-2. Channel Port Default Configuration Settings

Table 1-2. Channel Port Default Configuration Settings

Table 1-2. Channel Port Default Configuration SettingsTable 1-2. Channel Port Default Configuration Settings

COMMAND PARAMETER

CHANNEL PARAMETERS

LINK PARAMETERS

DEFAULT

SETTING

SPEED 9600

TYPE ASYNC DATA BITS 8 STOP BITS 1 PARITY NONE/SPACE FL CTL (Flow Control) DC3/DC1 FL CTL TR (Flow Control Translation) NO RV FL CTL (Reverse Flow Control) NONE EIA PROP (EIA Propigation) NO BRK PROP (Break Propagation) NO ECHOPLEX NO FLYBACK (Flyback Buffering) NO CTS-RTS (Clear-to-Send Ready-to-Send) NO MSGS ENAB (Messages Enabled) NO SPVR ENAB (Supervisor Enabled) NO INAC DISC (Inactivity Disconnect) NO DISC CHAR (Disconnect Character) CTL-T LINK CLK SOURCE (Link Clock Source) EXTERN

LINK CLK RATE (Link Clock Rate) 9600

RS-232-C is defined in terms of a DTE at one end and a DCE at the other. Normally

this would be a terminal or host (DTE) and a modem (DCE). The 3028 Turbo (CTS

2031 Turbo) multiplexer is designed to play the role of a DCE normally. When

attached to a modem on the channel port however, the 3028 Turbo (CTS 2031 Turbo)

plays the role of a DTE with EIA signals exchanged through a special cable.

Figure 1-3 identifies the EIA signal propagation. EIA signal propagation must be

enabled for the channel, for signal propagation to take place.

The Composite port is configured as a DTE to allow it to be connected to a modem

(DCE) type device. The following signals are active on the Composite port: TXD

(2), RXD (3), TXC (15), RXC (17), RTS (4), CTS (5), DCD (8), DTR (20) and XTXC

(24). The composite link is synchronous, full duplex and point to point. Front

panel configuration allows the 3028 Turbo (CTS 2031 Turbo) to provide clocking on

the XTXC signal lead as well as take clocking from the RXC and TXC signal leads.

If DCD becomes inactive the 3028 Turbo (CTS 2031 Turbo) assumes the link is

down. RTS will be provided by the 3028 Turbo (CTS 2031 Turbo). CTS must be

returned by the modem for the 3028 Turbo (CTS 2031 Turbo) to send data and

establish a link. DTR is forced active by the 3028 Turbo (CTS 2031 Turbo) software.

EIA SIGNALSEIA SIGNALS

EIA SIGNALS

EIA SIGNALSEIA SIGNALS

154001UA1-6

tandard Terminal / Host Connection

1. Introduction and Setup

Host

Pin-to-

DTE DTE

DRS

RTS

DTR

CTS

DCD

DSR

TXD

RXD

GND

Cable

Pin-to-

Cable

DRS

RTS

DTR

CTS

DCD

DSR

TXD

RXD

GND

Multiplexer Multiplexer

Tail Circuit Application

DRS

RTS

DTR

CTS

DCD

DSR

TXD

RXD

GND

Pin-to-

Cable

Crossover

Cable

DCEDTE

CTS

DCD

DSR

DRS

RTS

DTR

RXD

TXD

GND

Terminal

Modem

Multiplexer

Optional Under Software Control

Physical Propagation

Software Propagation

Figure 1-3. EIA SignalsFigure 1-3. EIA Signals

Figure 1-3. EIA Signals

Figure 1-3. EIA SignalsFigure 1-3. EIA Signals

154001UA 1-7

Multiplexer

Tail Circuit

20311-3

2031 Turbo Statistical Multiplexer

The 3028 Turbo (CTS 2031 Turbo) provides Link Down and Data Loss alarm

signals as TTL (0 to +5V) indications on the Supervisor port.

The Link Down alarm signal is indicated on pin 9 as a 0V level as long as the

datalink between the 3028 Turbo (CTS 2031 Turbo)s is not operational. +5V is

provided as long as the datalink between the 3028 Turbo (CTS 2031 Turbo)s

operational. Pin 9 is an Open Collector output.

The Data Loss alarm signal is indicated on pin 10 as a 0V level as long as the

data loss LED is illuminated and +5V is provided as long as the data loss LED is

extinguished. Pin 10 is an Open Collector output.

The 3028 Turbo (CTS 2031 Turbo) provides a Crypto Reset signal as an RS-232-C

signal indication on the Composite port.

The positive signal for Crypto Reset is provided on pin 11. The negative signal is

provided on pin 12 The Crypto reset pulse is 150ms in duration and occurs every

4, 8, 12 or 16 seconds as selected by jumpers J15 and J16 and the table below.

JP16 JP15 Time Delay

ON ON 4 Seconds

SUPERVISORSUPERVISOR

SUPERVISOR

SUPERVISORSUPERVISOR

ALARM SIGNALSALARM SIGNALS

ALARM SIGNALS

ALARM SIGNALSALARM SIGNALS

CRYPTO RESETCRYPTO RESET

CRYPTO RESET

CRYPTO RESETCRYPTO RESET

SIGNALSIGNAL

SIGNAL

SIGNALSIGNAL

OFF ON 8 Seconds

ON OFF 12 Seconds

OFF OFF 16 Seconds

150mS

4, 8, 12 or 16

Seconds

Pin 11

Pin 12

The first pulse is sent after the Link Down indication has occured for the length

of time specified by the selection jumpers and continues to occur at the selected

interval until the link is operational once more.

150mS

20311-4

154001UA1-8

2. Operation of the 3028 Turbo Multiplexer

2. Operation of the 3028 T2. Operation of the 3028 T

2. Operation of the 3028 T

2. Operation of the 3028 T2. Operation of the 3028 T

Overview ......................................................................................................................................... 2-2

Supervisory Function Overview ................................................................................................. 2-2

Front Panel Operation ...................................................................................................................2-3

Terminal Operation .......................................................................................................................2-5

Modes of Operation ....................................................................................................................... 2-5

Standby Mode/Logoff ................................................................................................................... 2-6

Monitor Mode ................................................................................................................................. 2-6

System Error Messages .........................................................................................................2-8

Monitor Mode Events ...........................................................................................................2-9

Memory Capability ..................................................................................................................... 2-10

Command Mode .......................................................................................................................... 2-10

Command Mode Definitions ............................................................................................ 2-11

Channel Parameters ........................................................................................................... 2-15

Channel Speed ........................................................................................................... 2-16

Channel Type ............................................................................................................. 2-19

Channel Data Bits ...................................................................................................... 2-20

Channel Stop Bits ...................................................................................................... 2-22

Channel Parity ........................................................................................................... 2-23

Channel Flow Control .............................................................................................. 2-25

Channel reverse Flow Control ................................................................................ 2-27

Channel Flow Control Translation ......................................................................... 2-29

Channel EIA Propagation ........................................................................................ 2-30

Channel Break Propagation ..................................................................................... 2-32

Channel Echoplex ..................................................................................................... 2-33

Channel Flyback Buffering ...................................................................................... 2-35

Channel CTS-RTS Control ....................................................................................... 2-36

Channel Messages Enabled ..................................................................................... 2-38

Channel Supervisor Enabled ................................................................................... 2-40

Channel Inactivity Disconnect ................................................................................ 2-42

Channel Disconnect Character ............................................................................... 2-43

Link Parameters .................................................................................................................. 2-46

Link Clock Source ..................................................................................................... 2-46

Link Clock Rate .......................................................................................................... 2-47

Supervisory Parameters .................................................................................................... 2-49

Copy Parameters ................................................................................................................ 2-51

Channel Statistics ............................................................................................................... 2-52

Link Statistics ...................................................................................................................... 2-55

Local Channel Loopback ................................................................................................... 2-58

Remote Channel Loopback ............................................................................................... 2-60

Local Link Loopback ......................................................................................................... 2-61

Channel Reset ..................................................................................................................... 2-62

Link Reset ............................................................................................................................ 2-63

Statistics Reset .................................................................................................................... 2-64

Channel Validate ................................................................................................................ 2-64

Channel Status .................................................................................................................... 2-66

Remote Signon .................................................................................................................... 2-68

Remote Signoff .................................................................................................................... 2-70

Set System Password ......................................................................................................... 2-71

Set System Banner .............................................................................................................. 2-72

Set System Time .................................................................................................................. 2-72

Disable/Enable Front Panel ............................................................................................. 2-73

Monitor Mode ..................................................................................................................... 2-74

Logoff ................................................................................................................................... 2-75

Resetting The Multiplexer ......................................................................................................... 2-75

urbourbo

urbo

urbourbo

MultiplexerMultiplexer

Multiplexer

MultiplexerMultiplexer

154001UA 2-1

3028 Turbo Statistical Multiplexer

This chapter explains the different methods you can use to configure, monitor

and control the multiplexer operations. It provides step-by-step instructions for

each method and summary areas for quick reference.

When the multiplexer is attached to a DCX multiplexer, there are three ways to

operate the supervisory functions:

1. The front panel keys and LCD display.

2. A terminal connected to the supervisory port.

3. A terminal connected to any asynchronous channel port enabled for the

supervisory function.

4. A terminal connected via the DCX network to an enabled supervisor

channel.

When the multiplexer is being used in Point-to-Point applications, there are three

additional operating methods:

1. The remote front panel interface.

2. A terminal connected to a remote supervisory port.

OVERVIEWOVERVIEW

OVERVIEW

OVERVIEWOVERVIEW

SUPERVISORSUPERVISOR

SUPERVISOR

SUPERVISORSUPERVISOR

FUNCTIONFUNCTION

FUNCTION

FUNCTIONFUNCTION OVERVIEWOVERVIEW

OVERVIEW

OVERVIEWOVERVIEW

3. A terminal connected to a remote asynchronous channel port enabled for

the supervisory function.

NoteNote

Note

NoteNote

In general only one terminal, local or remote, may be signed on as supervisor at the multiplexer at any given time. Supervisory functions at the front panel, however, may be carried on concurrently with a terminal supervisor.

Any of the terminals in Figure 2-1 may be used to access supervisory functions in

either 3028 Turbo (CTS 2031 Turbo). In addition, when the multiplexer is used in a

DCX network (Figure 2-1) any attached terminal can access the DCX supervisory

functions remotely. Refer to the DCX 850 Installation and Operation Manual, 2985-

A2-GN30, for procedures.

2-2 154001UA

DCX 840/850

LSC ARQ ARQ

2. Operation of the 3028 Turbo Multiplexer

FRONT PANELFRONT PANEL

FRONT PANEL

FRONT PANELFRONT PANEL OPERAOPERA

OPERA

OPERAOPERA

TIONTION

TION

TIONTION

STATISTICAL

MULTIPLEXER

POWER LOSS DOWN CONTROL

3028 Turbo

12345678SUPV

Figure 2-1. Remote Supervisory Access in a DCX Network ConfigurationFigure 2-1. Remote Supervisory Access in a DCX Network Configuration

Figure 2-1. Remote Supervisory Access in a DCX Network Configuration

Figure 2-1. Remote Supervisory Access in a DCX Network ConfigurationFigure 2-1. Remote Supervisory Access in a DCX Network Configuration

There are four push buttons on the front panel that can be used

to configure the multiplexer (Figure 2-2). These push buttons

are:

 NEXT

 LAST

 SELECT

 MON/CLR (Monitor/Clear)

12345678SUPV

3028 Turbo

30 28 T URBO

DATA LINK FLOW

Figure 2-2. Multiplexer Front PanelFigure 2-2. Multiplexer Front Panel

Figure 2-2. Multiplexer Front Panel

Figure 2-2. Multiplexer Front PanelFigure 2-2. Multiplexer Front Panel

NEXT LAST SEL MON/CL

20312- 1

20312-50

The functions of these push buttons are summarized in Table 21.

NoteNote

Note

NoteNote

Use of these push buttons in COMMAND mode may be disabled if the front panel has been disabled via the CRT Disable/Enable Front Panel command.

154001UA 2-3

3028 Turbo Statistical Multiplexer

ggreg

Table 2-1. Front Panel Push Button DescriptionsTable 2-1. Front Panel Push Button Descriptions

Table 2-1. Front Panel Push Button Descriptions

Table 2-1. Front Panel Push Button DescriptionsTable 2-1. Front Panel Push Button Descriptions

PUSH BUTTON DESCRIPTION

NEXT This push button allows entry into COMMAND mode (refer

LAST In COMMAND mode this push button is used to move to

SELECT This push button is used in COMMAND mode to enter the

MON/CLR This push button is used in COMMAND mode to exit a

to COMMAND MODE section) when the start-up messa is displayed or the device is in MONITOR mode (refer to MONITOR MODE section).

In COMMAND mode (COMMAND MODE displayed on the first line of the LCD) this push button moves to the next command. If the LCD displays a parameter (parameter displayed on the first line of the LCD) this push button causes the next parameter to appear. This push button does not update the parameter.

the previous command, parameter or option dependin the level of operation at any does not update the parameter.

displayed parameter or update use of the selected option.

parameter without makin COMMAND MODE / CHNL PARAMETERS display.

If you are already at the command prompt, this push button lo

s off as supervisor and enters MONITOR mode. If this push button is pressed while in MONITOR mode, the LCD will display:

iven time. This push button

changes and return to the

This display will remain until the NEXT push button is pressed to enter COMMAND mode or the MON/CLR push

The multiplexer has four LED displays on the front panel. Their functions are

described in Table 2-2.

Table 2-2. Panel LED DescriptionsTable 2-2. Panel LED Descriptions

Table 2-2. Panel LED Descriptions

Table 2-2. Panel LED DescriptionsTable 2-2. Panel LED Descriptions

LED DESCRIPTION

POWER This LED indicates that the power supply is operating. If

LINK DOWN This LED, when lit, indicates that the communication link

FLOW CONTROL This LED is turned on when buffer usage reaches 65%

DATA LOSS This LED is lit for ten seconds when data is lost or when

this LED does not li

has failed, when flashin

and is turned off when the total buffer usa 45%. These limits indicate the thresholds for potentially invokin

or releasing channel flow control signals.

the a

ate input limit of 76.8Kbps has been exceeded.

ht and the system is plugged in, a

, indicates a loopback state.

e drops below

2-4 154001UA

2. Operation of the 3028 Turbo Multiplexer

TERMINALTERMINAL

TERMINAL

TERMINALTERMINAL OPERAOPERA

OPERA

OPERAOPERA

MODES OFMODES OF

MODES OF

MODES OFMODES OF OPERAOPERA

OPERA

OPERAOPERA

TIONTION

TION

TIONTION

TION

TIONTION

Configuration of the multiplexer can be done through the use of an attached

terminal. The attached terminal can be any standard asynchronous terminal. A

series of screens enable you to configure the multiplexer. The keys available for

use are:

 RETURN or ENTER

The RETURN or ENTER key is used to update the selected

option, to exit a menu without making changes, or to access the

Main Menu from MONITOR mode.

 BACKSPACE or DELETE

The BACKSPACE or DELETE key is used to correct mistakes

during entry before pressing the RETURN key.

 Number Keys

The number keys are used to select options from the menu

screens.

Front Panel

There are three modes of operation:

STANDBY MODE This mode displays the message SYSTEM READY

and the system clock.

MONITOR MODE This mode allows for the display of system

events.

COMMAND MODE This mode provides access to the supervisory

functions.

Terminal

There are three modes of operation:

LOGOFF This mode causes the terminal to display the

message SUPERVISOR LOGOFF @ hh:mm:ss

where hh:mm:ss is the current system time.

MONITOR MODE This mode allows for the display of system

events.

COMMAND MODE This mode provides access to the supervisory

functions.

154001UA 2-5

3028 Turbo Statistical Multiplexer

When the multiplexer is in STANDBY mode, the system event displays are

stored and displayed when monitor mode is entered. The display that is shown

during the STANDBY mode is:

SYSTEM READY

00:00:00

20312-51

When the multiplexer terminal is in LOGOFF mode the terminal displays

SUPERVISOR LOGOFF @ hh:mm:ss where the time displayed is the current

system time. The terminal will remain logged off until the supervisor logon

character is pressed to enter COMMAND mode. From COMMAND mode,

changes to the parameters may be made or MONITOR mode can be entered.

When the multiplexer is in MONITOR mode the system displays the system

events as they occur. Entry into MONITOR mode also constitutes a supervi-

sory signoff allowing other channels access to the supervisory functions.

The first display after entering MONITOR mode is the current PROM level

installed (REV nnn.nn). After this, the events that have occurred are displayed.

The message queue holds 16 messages and after they are displayed they cannot

be recalled. The messages can be displayed on either the terminal or LCD,

whichever enters MONITOR mode first. If more than 16 messages occur, only

the latest 16 are kept to be displayed.

STST

ANDBY MODE/ANDBY MODE/

ANDBY MODE/

STST

ANDBY MODE/ANDBY MODE/

LOGOFFLOGOFF

LOGOFF

LOGOFFLOGOFF

MONITOR MODEMONITOR MODE

MONITOR MODE

MONITOR MODEMONITOR MODE

Note

When you are signed on to a remote 3028 Turbo (CTS 2031 Turbo), the messages displayed as remote events are actually local events to your 3028 Turbo (CTS 2031 Turbo).

Front Panel Access

MONITOR mode is entered by pressing the MON/CLR push button once from

the STANDBY or COMMAND modes and by pressing the MON/CLR push

button twice from a command, parameter or option in COMMAND mode. The

LCD will display the following until an event occurs for display.

When you enter MONITOR mode and there are events in the queue, they will

be displayed, earliest first, for a minimum of two seconds each.

In a point-to-point application, events are displayed at both the local and the

remote ends when each LCD is in the MONITOR mode (Figures 2-3 and 2-4).

The first line displays the time the event occurred and the second line displays

the event that occurred (Table 2-3). Events are displayed in the following format:

MONITOR MODE

REV 938 14.0

20312-52

2-6 154001UA

EVENT @ 10:00:00

CHNL 1 RESET

Figure 2-3. Local Event DisplayFigure 2-3. Local Event Display

Figure 2-3. Local Event Display

Figure 2-3. Local Event DisplayFigure 2-3. Local Event Display

R EVT @ 10:00:00

CHNL 1 RESET

Figure 2-4. Remote Event DisplayFigure 2-4. Remote Event Display

Figure 2-4. Remote Event Display

Figure 2-4. Remote Event DisplayFigure 2-4. Remote Event Display

The multiplexer uses a 24-hour clock for time displays and does not have the date maintained as part of the time stamp. Queued messages are deleted when the system clock goes from 23:59:59 to 00:00:00.

2. Operation of the 3028 Turbo Multiplexer

20312-53

20312-54

Note

MONITOR MODE

REV 938 14.0

To enter STANDBY mode:

PRESS: MON/CLR

To enter COMMAND mode:

PRESS: NEXT

Terminal Access

To enter MONITOR mode from the terminal main menu:

TYPE: 22

PRESS: RETURN

The terminal indicates that MONITOR mode is entered with a screen display:

20312

When an event occurs (Figure 2-5) it is displayed on the terminal:

MONITOR MODE

EVENT @ 10:00:00 event

REMOTE EVENT @ 10:00:00 event

Figure 2-5. Event MessagesFigure 2-5. Event Messages

Figure 2-5. Event Messages

Figure 2-5. Event MessagesFigure 2-5. Event Messages

20312

154001UA 2-7

3028 Turbo Statistical Multiplexer

To enter COMMAND mode ,

PRESS: <supervisor logon character>

(default = CTRL + V)

If the password protection is in use, you are prompted to enter the correct

password. Enter the password and press RETURN; the Main Menu will then

be displayed.

The SYSTEM ERROR message displayed in diagnostic failure at start-up pro-

vides information as to the type of failure detected. The format of the informa-

tion is as follows:

SYSTEM ERROR n

20312-55

Where n is one of the following:

M - EPROM checksum failed., U41 & U42

A - memory A000-AFFF failed, RAM U40

B - memory B000-BFFF failed, RAM U40

C - memory C000-CFFF failed, RAM U39

D - memory D000-DFFF failed, RAM U39

E - memory E000-EFFF failed, RAM U38

F - memory F000-FFFF failed, RAM U38

1 - Port 1 or Supervisory Port failed - SCC U29 or U33

2 - Port 2 failed - SCC U29

3 - Port 3 failed - SCC U30

4 - Port 4 failed - SCC U30

5 - Port 5 failed - SCC U31

6 - Port 6 failed - SCC U31

7 - Port 7 failed - SCC U32

8 - Port 8 failed - SCC U32

The order of testing is as listed above. Any one failure will terminate testing.

System ErrorSystem Error

System Error

System ErrorSystem Error

MessagesMessages

Messages

MessagesMessages

2-8 154001UA

2. Operation of the 3028 Turbo Multiplexer

Monitor Mode EventsMonitor Mode Events

Monitor Mode Events

Monitor Mode EventsMonitor Mode Events

Table 2-3 lists the MONITOR mode events.

Table 2-3. MONITOR Mode EventsTable 2-3. MONITOR Mode Events

Table 2-3. MONITOR Mode Events

Table 2-3. MONITOR Mode EventsTable 2-3. MONITOR Mode Events

EVENT DESCRIPTION

CHNL n RESET* This event indicates that the indicated channel has

CHNL n FL CTL* This event reports that flow control was invoked for the

CHNL n RV FL CTL* This event indicates that a preprogrammed reverse

CHNL n ACTIVE* This event indicates that the flow control or reverse

CHNL n LOOPED* This event indicates that the channel has been put in a

LINK FAILED This event indicates that a link interface is no longer

LINK # CHL INV This event reports that the remote multiplexer has more

been reset, locally or remotely, via the terminal or front panel interface. The reset function clears the data buffers and resets any flow control or reverse flow control states at each end.

indicated channel in response to either the channel exceedin the channel speed) or the total system buffer utilization reachin locally only).

flow control si indicated channel, causin transmission temporarily (reported locally only).

flow control condition has cleared at the indicated channel throu command) (reported locally only).

loopback condition, where the data sent to the channel both inward and outward is looped back.

recevin is fails. A failure is declared after approximately 10 seconds of noncommunication and retries (reported locally only).

its flow control level (the percent is based on

65% of the multiplexer capacity (reported

nal has been received from the

the multiplexer to suspend

h normal means (not a Channel RESET

acknowledgements to its transmissions. This

enerated only when a link that has been operational

CHNL n DATA LOSS* This event reports that user channel data has been

LINK ESTABLISHED This event reports that a link has been established and

SUPVR SIGNON This event reports that a local or remote supervisor has

SUPVR SIGNOFF This event reports that a local or remote supervisor has

*n = the channel on which the event occurs.

lost.

communication can be to reestablish itself; if it is successful, this event occurs(reported locally only).

ed on.

ed off.

in. A failed link continually tries

154001UA 2-9

3028 Turbo Statistical Multiplexer

The 3028 Turbo (CTS 2031 Turbo) has sufficient nonvolatile memory so that certain

operating parameters will be retained through a power loss. The following will be

maintained through a power-off, power-on sequence:

 Channel parameters

 Supervisory port parameters

 Link parameters

 System password

 System banner (part of Main Menu)

 Any front panel inhibited status

 Any forced EIA output signals

The following are not maintained through a power-off, power-on sequence, but are

"cleared" upon system restart:

 Peak channel and link usage statistics

 System time

 Any flow control or reverse flow control XOFF states

 Any channel loopbacks

 Link loopbacks

 Detected autobaud speeds

 Propagated EIA signals

 Monitor messages

MEMORMEMOR

MEMOR

MEMORMEMOR

CAPCAP

ABILITYABILITY

CAP

ABILITY

CAPCAP

ABILITYABILITY

Command mode allows the operator to configure the multiplexer for operation

using either the multiplexer front panel or an attached terminal.

Front Panel Access

The NEXT push button accesses Command mode from Monitor mode or Standby

mode. The LCD will Display

COMMAND MODE

CHNL PARAMETERS

20312-56

SUPERVISOR BUSY displays when an attempt is made to sign on to a remote 3028

Turbo (CTS 2031 Turbo) that has a front panel already in use.

SUPERVISOR BUSY

20312-57

COMMAND MODECOMMAND MODE

COMMAND MODE

COMMAND MODECOMMAND MODE

2-10 154001UA

Terminal Access

0312-

At initial logon or from MONITOR MODE

PRESS: <supervisor logon character>

If a password entry is needed, you are prompted to enter the password. After

doing this the Main Menu (figure 2-6) displays:

S Y S T E M M E N U

SET CHANNEL PARAMETERS

SET LINK PARAMETERS

SET SUPERVISORY PARAMETERS

COPY PARAMETERS

CHANNEL STATISTICS

LINK STATISTICS

SET/CLEAR LOCAL CHANNEL LOOPBACK

SET/CLEAR REMOTE CHANNEL LOOPBACK

LOCAL LINK LOOPBACK

10.

RESET A SINGLE CHANNEL

11.

RESET ALL CHANNELS

12.

RESET LINK

(default = CTRL + V)

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

23.

2. Operation of the 3028 Turbo Multiplexer

RESET STATISTICS CHANNEL VALIDATE CHANNEL STATUS REMOTE SIGNON REMOTE SIGNOFF SET SYSTEM PASSWORD SET SYSTEM BANNER SET SYSTEM TIME DISABLE/ENABLE FRONT PANEL ENTER MONITOR MODE LOGOFF

Command ModeCommand Mode

Command Mode

Command ModeCommand Mode DefinitionsDefinitions

Definitions

DefinitionsDefinitions

ENTER 1-23 <CR> TO SELECT DESIRED FUNCTION:

Figure 2-6. Command Mode Main MenuFigure 2-6. Command Mode Main Menu

Figure 2-6. Command Mode Main Menu

Figure 2-6. Command Mode Main MenuFigure 2-6. Command Mode Main Menu

If the Main Menu does not appear, check to make sure the SUPERVISOR

ENABLED parameter is set to YES (refer to Channel Supervisor Enabled

paragraph).

If the supervisor is currently in use, the message SUPERVISOR BUSY is

returned.

LCD

The LCD display is made up of 2 lines with 16 character positions on each line.

An asterisk (*) before the channel number selection (Figure 2-7) indicates the

current selection. Use the NEXT or LAST push button to move the asterisk to

the next or previous option, respectively.

SELECT CHANNEL:

*1 2 3 4 5 6 7 8

20312-58

Figure 2-7. Asterisk Position ExampleFigure 2-7. Asterisk Position Example

Figure 2-7. Asterisk Position Example

Figure 2-7. Asterisk Position ExampleFigure 2-7. Asterisk Position Example

154001UA 2-11

3028 Turbo Statistical Multiplexer

A number sign (#) in the first position of the second line (Figure 2-8) indicates the

current value for the parameter.

CHNL n SPEED # 7200

20312-59

Figure 2-8. Number Sign Position ExampleFigure 2-8. Number Sign Position Example

Figure 2-8. Number Sign Position Example

Figure 2-8. Number Sign Position ExampleFigure 2-8. Number Sign Position Example

An n in a display will be replaced by the channel number selected.

Use the NEXT and LAST push buttons to move forward or backward through

the commands, parameters or options.

When pressed, the SELECT push button either moves from a command to a

parameter, a parameter to an option or updates the selected option.

The displays and screens shown are samples and do not necessarily reflect your

configuration.

In this chapter, the symbol indicates that the values following will

appear on the second line of the display.

The starting point for accessing commands and parameters described in this

chapter is the COMMAND MODE display (Figure 2-9).

COMMAND MODE CHNL PARAMETERS

20312-60

Figure 2-9. Command Mode DisplayFigure 2-9. Command Mode Display

Figure 2-9. Command Mode Display

Figure 2-9. Command Mode DisplayFigure 2-9. Command Mode Display

Note

When a parameter is selected to change a particular channel, you receive the following display prior to access of the options.

SELECT CHANNEL: *1 2 3 4 5 6 7 8

The commands that require channel selection are indicated in Table 2-4 by a double asterisk (**) following the command name. Factory set defaults are listed first in the options/notes column.

Terminal Access

20312-58

The terminal screen does not clear after selection of a command or parameter.

It scrolls the selected option information onto the bottom of the screen. For

display purposes, the screen in the following paragraphs shows only the infor-

mation for the selection and not the information that will appear above that on

your screen.

2-12 154001UA

2. Operation of the 3028 Turbo Multiplexer

The BACKSPACE or DELETE keys can be used to erase an incorrect entry

before pressing RETURN.

The following paragraphs describe access of the commands and parameters

(Table 2-4) from both the front panel and an attached terminal.

Note

When a parameter is selected to change a particular channel, you receive the following display prior to access of the options.

SELECT CHANNEL NUMBER (1-8) <CR>:

2031N-1

The commands that require channel selection are indicated in Table 2-4 by a double asterisk (**) following the command name. Factory set defaults are listed first in the options/notes column.

Table 2-4. Commands, Parameters and Options (1 of 2)Table 2-4. Commands, Parameters and Options (1 of 2)

Table 2-4. Commands, Parameters and Options (1 of 2)

Table 2-4. Commands, Parameters and Options (1 of 2)Table 2-4. Commands, Parameters and Options (1 of 2)

COMMAND PARAMETER OPTIONS/NOTES

CHNL PARAMETERS**

SPEED 9600, 19,200, DOWNL,

AUTOB, 50, 75, 110, 134, 150, 300, 600, 1200, 1800, 2000,

2400, 3600, 4800, 7200 TYPE ASYNC, HPENQ, SDLC/HDLC DATA BITS 8, 7, 6, 5 STOP BITS 1, 1.5, 2 PARITY NONE/SPACE, NONE/ODD,

NONE/EVEN, ODD, EVEN,

NONE/MARK FL CTL DC3/DC1, DC2/DC1, DC4/DC2,

USER, WANG®, TANDEM®,

CTS-/CTS+, DSR-/DSR+,

NONE FL CTL TR NO, YES RV FL CTL NONE, DC3/DC1, DC2/DC1,

DC4/DC2, USER, WANG®,

RTS-/RTS+, DTR-/DTR+ EIA PROP NO, YES BRK PROP NO, YES ECHOPLEX NO, YES FLYBACK NO, YES CTS-RTS NO, YES MSGS ENAB NO, YES SPVR ENAB NO, YES INAC DISC NO, YES DISC CHAR CTL-T, NONE, USER

154001UA 2-13

3028 Turbo Statistical Multiplexer

Table 2-4. Commands, Parameters and Options (2 of 2)Table 2-4. Commands, Parameters and Options (2 of 2)

Table 2-4. Commands, Parameters and Options (2 of 2)

Table 2-4. Commands, Parameters and Options (2 of 2)Table 2-4. Commands, Parameters and Options (2 of 2)

COMMAND PARAMETER OPTIONS/NOTES

LINK LINK CLK SOURCE EXTERN, INTERN PARAMETERS LINK CLK RATE 9600, 7200, 4800, 3600, 2400,

COPY PARAMETERS**

CHANNEL STATISTICS

LINK STATISTICS FR RECD nnn CURR

CHANNEL STATUS**

LOCAL CHANNEL LOOPBACK**

REMOTE CHANNEL LOOPBACK**

LINK LOOPBACK CHANNEL

RESET** LINK RESET CHANNEL

VALIDATE** STATISTICS

RESET REMOTE SIGNON not available in remote

REMOTE SIGNOFF SET TIME 00:00:00 set time according to a 24-hour

COPY FROM COPY TO

BF UTIL nn% CURR BF UTIL nn% PEAK EXC nnnn FC nnnn RV FC nnnn

FR RECD nnn PEAK FR NAKD nnn CURR FR NAKD nnn PEAK FR RSNT nnn CURR FR RSNT nnn PEAK TX UTIL nn% CURR TX UTIL nn% PEAK RX UTIL nn% CURR RX UTIL nn% PEAK

DRS xxx BO xxx DTR xxx RTS xxx CTS xxx RI xxx DCD xxx DSR xxx LLB xxx RLB xxx FC xxx RFC xxx ACTIVITY zzz

1200, 19,200. select channel (1-8).

select channel (1-8 or ALL). nn is the percentage of

utilization, nnnn is the number of occurences.

nn is the percentage of utilization, nnn is the number of occurences.

xxx is ON or OFF, zzz is YES or NO.

select channel (1-8).

select channel (1-8), not available in remote supervisor mode.

select channel (1-8 or ALL).

select channel (1-8 or supervisor).

supervisor mode.

clock.

2-14 154001UA

2. Operation of the 3028 Turbo Multiplexer

Channel ParametersChannel Parameters

Channel Parameters

Channel ParametersChannel Parameters

The CHANNEL PARAMETERS command is used to change or examine any of

17 programmable parameters on any of the available channel ports or the

supervisory port.

Front Panel Access

From the COMMAND MODE / CHANNEL PARAMETER display:

PRESS: SELECT

The LCD Displays:

SELECT CHANNEL: *1 2 3 4 5 6 7 8

20312-58

PRESS: NEXT or LAST

to select a channel

PRESS: SELECT

The asterisk (*) before the channel number indicates the channel which is

accessed.

The LCD will now display:

CHNL PARAMETERS

Where is CHNL n SPEED

CHNL n TYPE

CHNL n DATA BITS

CHNL n STOP BITS

CHNL n PARITY

CHNL n FL CTL

CHNL n RV FL CTL

CHNL n FL CTL TR

CHNL n EIA PROP

20312-61

CHNL n BRK PROP

CHNL n ECHOPLEX

CHNL n FLYBACK

CHNL n CTS-RTS

CHNL n MSGS ENAB

CHNL n SPVR ENAB

CHNL n INAC DISC

CHNL n DISC CHAR

154001UA 2-15

3028 Turbo Statistical Multiplexer

Terminal Access

To select the CHANNEL PARAMETERS screen:

TYPE: 1

PRESS: RETURN

A channel must be selected following the display:

SELECT CHANNEL NUMBER (1-8) <CR>

After a channel is selected the terminal displays:

20312-6

SPEED: 9600

TYPE: ASYNC

DATA BITS: 8

STOP BITS: 1

PARITY: NONE/SPACE

(ENTER 1-17 <C R> TO SELECT A PARAMETER, OR <CR> TO QUIT.):

FLOW CTL

(XOFF/XON):

DC3/DC1

REV FL CTL:

NONE

FL CTL TR: NO

EIA PROP: NO

10.

BREAK: NO

11.

ECHO: NO

12.

FLYBK: NO

13.

CTS-RTS: NO

14.

MSGS ENAB: NO

15.

SUPERV ENAB: NO

16.

INACT DISC: NO

17.

DISC CHAR: CTL-T

The SPEED parameter sets the data rate for the Channel port. There are 16

speeds to choose from, or the channel may be set to detect the speed of the

incoming characters and adjust itself appropriately using AUTOBAUD options.

The AUTOBAUD option will not trigger on the following speeds: 19.2K, 134.5,

110, 75 and 50. The remote end channel, when set to DOWNL, receives the

setting and is also adjusted to the detected speed. The AUTOBAUD option is

used when data transmission rates vary or are unknown such as with asynchro-

nous modem tail circuits. To use the AUTOBAUD option, turn the attached

terminal on, then enter a CARRIAGE RETURN. Cycling the power is neces-

sary since an off-to-on transition on DTR is required to trigger the multiplexer

to look for the AUTOBAUD character. (Note that this will be DSR OFF-to-ON if

a standard crossover cable is used on a modem tail circuit.)

20312-7

Channel SpeedChannel Speed

Channel Speed

Channel SpeedChannel Speed

If the speed is detected, the following display appears on an attached terminal

(if available):

AUTOBAUD SPEED DETECTED: nnnn

20312-8

2-16 154001UA

2. Operation of the 3028 Turbo Multiplexer

If the message is received but is garbled, either the speed was incorrectly

determined or the parity is in error. To use the built in auto-parity function to

set the parity, enter the following immediately after the AUTOBAUD SPEED

DETECTED message.

TYPE: P (capital)

PRESS: RETURN

The multiplexer will set the parity based on the P and RETURN characters

received.

Note

All channels can be set to the 19,200 speed option as long as the maximum aggregate input does not exceed 76,800bps. Exceeding the 76,800bps input may cause data loss. Enabling certain channel parameters can affect the aggregate input limit. Enabling the following channel parameters will reduce the maximum aggregate input rate supported on the multiplexer: In-Band Reverse Flow Control, Echoplex, Supervisor Enabled, and Flyback Buffering. This is caused by the requirement to examine every character of data generated by the terminal to the multiplexer.

Front Panel Access

From the COMMAND mode display:

PRESS: NEXT or LAST

until CHNL PARAMETERS displays on the second line

PRESS: SELECT

PRESS: NEXT or LAST

to choose a channel number

PRESS: SELECT

PRESS: NEXT or LAST

until CHNL n SPEED displays on the second line

PRESS: SELECT

154001UA 2-17

+ 105 hidden pages

Patton 3028 Turbo User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual