Black Box 32144 User Manual

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746

FCC STATEMENT

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 J 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 Indusrty Canada.

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

MODEM 32144

1. Specifications

Ringer Equivalence — 0.8 B

Environment — Ambient temperature:

32 to 122° F (0 to 50° C); Storage temperature: -4 to 158° F (-20 to 70° C); Relative humidity: 10 to 95%

Power — 90-132 VAC, 60 Hz

Size — 2.5"H x 10.1"W x 9.7"D (6.4 x 25.7 x

24.6 cm)

Weight — 4 lb. (1.8 kg)

Standards — Bell 103, 212, 208, CCITT

V.13, V.17, V.22, V.32, V.22 bis, V.25, V.32 bis, V.33, V.29, V.32terbo

Protocol — Sync and async

Data Rate — Up to 16.8 and 19.2 Kbps

Operation — Full duplex over 2- or 4-wire

leased lines or dialup lines

Connectors — (1) DB25 female, (5) RJ-45 female, (1) 5-pin DIN

Configuration — AT Command set or front-panel

Error Correction/Data Compression —

MNP 1-5, V.42, V.42 bis

CHAPTER 2: Quick Start

2. Quick Start

Note that if you ordered the Modem 32144 Card, all you will receive is the Card itself. It does not come with the power transformer or cables listed below.

If you ordered the Modem 32144, in addition to the modem, the shipping carton should contain—

• A power transformer (with cable attached)

• A two-conductor crossover cable with an eight-pin modular connector on one end and a six-pin modular connector on the other end

• A four-conductor cable with two six-pin modular connectors on each end and spade lugs on the other end

Two cables are supplied with the modem, but both cables aren’t always needed, depending on the application. You will need an EIA RS-232 interface cable (not supplied) to connect the modem to the DTE (data terminal equipment, usually a computer). If the modem will be operated in a manual dial mode, you will also need a standard telephone set.

This instruction manual applies to the Modem 32144.

All information applies to both the stand-alone and full-size rackmount versions of the modem. Specialized low-profile rack-mount versions, designed for use in highdensity rack enclosures, are described in Appendix A.

QUICK SETUPS FOR A QUICK

START

The simplest and fastest way to set up the modem for immediate use is to select one of the factory-preset Quick Setup configurations. For most applications, once you have selected the proper Quick Setup, the modem will be ready for operation. You will not need to make further adjustments.Quick Setups are explained fully beginning in Section 2.3, following installation instructions and a brief introduction to the front panel display and controls.

2.1 Installation

2.1.1 U

NPACKING

Keep the original shipping carton in case you need to return the modem for any reason.

MODEM 32144

3. Options: Customizing the Modem Setup

• Summary Setup. This is the fastest way to selectively change multiple options. All options are accessed using just a few of the LCD screens. However, because these screens show numerical codes with very little explanation, Summary Setup is recommended only for experienced users. Summary Setup is explained in Appendix B.

3.2 Front-Panel Options

This chapter describes the standard instead of selecting options from the front panel. An alternate method for selecting options from the front panel (Summary Setup) is explained in Appendix B.

3.2.1 P

USHBUTTONS AND THE

LCD

Options are selected from the front panel by pressing the front panel pushbuttons (Fig. 3-1). The possible choices for each option are shown on the liquid-crystal display (LCD).

3.1 Methods for Selecting Options

The modem allows you to easily select options in order to tailor the modem’s operation to suit a particular application. Options can be selected in any of the following ways:

• Quick Setup. This is the easiest way to set up the modem. Quick Setup (explained in Chapter 2) automatically sets all options according to a preset configuration.

• Front-panel option selection. This is the easiest and most commonly used method for selecting individual option choices. Typically you would select an overall configuration via Quick Setup and then modify it to suit your application by changing selected options from the front panel. Changes are made by accessing individual option screens on the front panel LCD and then making selections using the control pushbuttons. (An alternate way to change options from the front panel is to use the modem’s Summary Setup feature, which is described below.)

MODEM 32144

4. General Operation and Special Features

4.1 Quick Reset

For a reset of the modem, whereby option settings are not changed but the modem is cleared for a new start and the ROM memory chip is checked, select RESET from MAIN MENU screen 3. The modem will display the power-on screen for a few seconds and then the EIA status screen. This feature enables you to reset the modem without powering down the unit.

4.2 Storing Phone Numbers

4.2.1 U

SES

The front panel PHONE screen allows you to store a single phone number to be used later for—

• Autodialing from the front panel or using the Hayes or V.25 bis mode autodialer

• DTR dialing

• Leased-line or dial-line autorecovery.

This chapter describes the following features and operational modes (listed here in the order in which they are presented):

• Quick reset

• Phone number storage

• Automatic fallback

• Dumb mode and Bell 208 operation

• V.13 operation

• DTR dialing

• Dial Line Auto-Recovery

• Leased Line Auto-Recovery

• Security operation

• Modem-controlled remote control

• Diagnostic interface control

The status screens, which display data concerning the operational status of the modem, are discussed in Section 7.6 . Instructions for using the pushbutton controls and LCD are included in Section 3.2.

CHAPTER 5: Hayes Emulation Mode

5. Hayes Emulation Mode

to a preset configuration suitable for typical Hayes mode applications. To select the 2-wire dial Hayes Quick Setup, access QUICK SETUP screen 1 on the LCD and press pushbutton 2.

• DIALER MODE. If you enabled the Hayes mode autodialer using the Dialer Mode option, no other options will be changed. To enable the autodialer this way, select DIALER from SETUP screen 2. Then select HAYES from the DIALER screen.

5.1.2 C

OMMANDGUIDELINES

The following guidelines for using Hayes-compatible AT commands also provide a summary of the fundamentals of Hayes mode autodialer operation.

NOTE

Although carriage returns are not shown in the examples in this chapter, a carriage return is required at the end of each command line.

For easy reference, the following tables appear consecutively at the end of this chapter:

• Hayes-Compatible Commands (Table 5-1)

• Hayes Mode Result Codes (Table 5-2)

• S Register Functions (Table 5-3)

5.1 Hayes Mode Autodialer

When the Hayes emulation mode is enabled, the modem emulates a Hayes autodialer and functions much like a Hayes modem. Commands are issued from the computer keyboard (or other DTE), and the modem is compatible with software written to drive a Hayes-style “AT” command set.

5.1.1 E

NABLING THEHAYESMODE

UTODIALER

The Hayes mode autodialer can be enabled in either of two ways—by using the Quick Setup feature or by selecting HAYES from the DIALER screen:

• QUICK SETUP. If you select 2Wire Dial (Hayes) by using the Quick Setup feature, the Hayes mode autodialer will be enabled, and all modem options will be automatically set

127

CHAPTER 6: V.25 bis Autodialer

6. V.25 bis Autodialer

6.1.1 Q

UICKSETUP

Three Quick Setup configurations are available for 2-wire dial V.25 bis operation. Selecting any of the three V.25 bis Quick Setups (via QUICK on SETUP screen 1) enables the V.25 bis autodialer and causes all modem options to be automatically set to a preset configuration. Each V.25 bis Quick Setup is suitable for a typical V.25 bis application, depending on the DTE to be used.

To select a 2-wire dial V.25 bis Quick Setup, access QUICK SETUP screen 2, 3, or 4 (for asynchronous; synchronous, character-oriented; or synchronous, bit-oriented operation, respectively) on the LCD, and then press pushbutton 2. After selecting the desired V.25 bis Quick Setup configuration, you can reset individual options to suit your application, if desired, as explained in Chapter 3.

In accordance with the CCITT V.25 bis Recommendation, the modem V.25 bis asynchronous Quick Setup sets the character length to 10 bits, including 1 even parity bit. Both V.25 bis synchronous Quick Setups set the modem for odd parity. (For synchronous operation, the character-length option setting has no effect.)

For international compatibility, the modem can be configured to function as a V.25 bis autodialer. In V.25 bis mode, the modem is compliant with CCITT Recommendation V.25 bis, an internationally recognized standard for serial automatic call origination and answering.

The V.25 bis autodialer uses the dialing command set defined by the V.25 bis Recommendation. It allows you to store and dial phone numbers from the DTE in both synchronous and asynchronous applications. You can dial numbers directly or you can instruct the modem to automatically dial a previously stored number.

6.1 Enabling the V.25 bis Autodialer

The V.25bis autodialer can be enabled in either of two ways—by using the Quick Setup feature or by selecting one of the Dialer Mode options.

138

MODEM 32144

7. Diagnostics

7.2 Symptoms and Scope of the Problem

As a first step toward isolating the problem, carefully consider each of the following questions:

• When did the problem begin?

• What is malfunctioning? Try to isolate the component or components of your system that are malfunctioning.

• Has there been a recent change in the system?

• Has the modem been reconfigured?

You can quickly find out if the modem has been reconfigured by checking the checksum shown in the SUMMARY screen (accessed via SETUP screen 6) and comparing it with the checksum displayed when the modem was operating properly—if you made a note of the previous checksum. If the checksum is different from the original checksum, one or more option settings have been changed. If you previously recorded the number strings (i.e., option parameters) displayed in the setup screens accessed via the SUMMARY screen, you should be able to determine which option settings have been changed (by comparing the previous and current option parameters).

The troubleshooting information in this chapter applies to all modem applications (all dialup and leased-line modes), unless specifically stated otherwise.

For specific test procedures, turn to one of the following sections in this chapter:

• Section 7.8, Local Modem

Diagnostics

• Section 7.9, Remote Diagnostics

7.1 When and Why to Test

If you are experiencing communications difficulties, the overall objective in correcting the problem should be to specifically isolate the defective component in your communications system. This typically involves three steps: Identifying the symptoms and scope of the problem, performing a physical inspection of all units and connections in the system and, finally, conducting diagnostic tests. Very often the diagnostic testing capabilities of the modem can help identify the specific faulty component, whether it is the modem, the DTE or telephone line.

MODEM 32144

Contents

1. Specifications.............................................................................................10

2. Quick Start.................................................................................................13

2.1 Installation ........................................................................................13

2.1.1 Unpacking...............................................................................13

2.1.2 Connections ............................................................................14

2.1.3 Jumpers ...................................................................................15

2.2 Front-Panel LCD and Controls .......................................................16

2.2.1 Power-On Screen ....................................................................17

2.2.2 EIA Status Screen....................................................................17

2.3 Quick Setup ......................................................................................18

2.3.1 How to Select a Quick Setup .................................................18

2.4 Basic Operation................................................................................25

2.4.1 2-Wire Dial Hayes Mode (Quick Setup 1) ............................25

2.4.2 2-Wire Dial V.25 bis Mode (Quick Setup 2-4).......................26

2.4.3 2-Wire Dial Dumb Mode (Quick Setup 5)............................27

2.5 Leased Line (2- or 4-Wire) Mode (Quick Setup 6-9) ....................29

2.6 V.33 Leased Line Operation (Quick Setup 10) .............................29

2.7 2-Wire Dial Bell 208 Operation (Quick Setup 11-12)....................30

2.8 Two Types of Bell 208 Operation....................................................31

2.8.1 Bell 208 Operation (Exclusive) .............................................31

2.8.2 V.32/208 Auto-Select Mode ...................................................32

2.9 4-Wire Leased Line V.29 Mode (Quick Setup 13) .........................32

2.9.1 V.32 Dial Backup.....................................................................33

2.10 V.29 Fast Master and Slave Modes (Quick Setup 14-15) ..............33

2.11 If You Have Problems.....................................................................35

2.11.1 All Modes...............................................................................35

2.11.2 All Dial Modes (Hayes, V.25 bis, Dumb, Bell 208,

and V.32/208).......................................................................35

2.11.3 All Asynchronous Modes......................................................37

2.11.4 Hayes Mode...........................................................................37

2.11.5 All Leased-Line Modes (2-Wire, 4-Wire, V.33,

and V.29) ...............................................................................37

2.11.6 Leased Line (Excluding V.33 and V.29 Operation)...........37

3. Options: Customizing the Modem Setup...............................................38

3.1 Methods for Selecting Options .......................................................38

3.2 Front-Panel Options.........................................................................38

3.2.1 Pushbuttons and the LCD .....................................................38

156

MODEM 32144

Appendix A: Quick Setup

Configurations

Some options can be selected via Summary Setup only. These options are not listed in Table A-1. The factory-default settings for these options are shown in

Appendix B.

Table A-1 shows the modem

configuration—i.e., the default setting for each option—for each of the Quick Setup modes. When you select a Quick Setup, the modem automatically sets all options as indicated in the table. The options are listed in the same order in which they appear on the LCD flow chart.

Instructions for selecting Quick

Setups are included in Chapter 2.

166

MODEM 32144

Appendix B: Summary Setup

If you select AT, the AT PROFILES screen will be displayed. When you select a Hayes mode configuration profile (user profile) from the AT PROFILES screen, the MODEM displays a setup screen for the selected profile. The selected profile is used as the active configuration and is also designated as the default user profile. Select 0 (pushbutton 1) to select profile 0; select 1 (pushbutton 2) to select profile 1. Pushbutton 3, with the AT PROFILES screen displayed, enables you to select the default configuration profile: By pressing pushbutton 3, you can toggle (switch) between profile 0 or profile 1 as the default—the effect is the same as issuing the &Y command (&Y0 or &Y1).

The SUMMARY screen includes a four-digit checksum value to the right of the word “SUMMARY.” This number will change if any of the option settings are changed, so it allows you to determine if any of the modem’s option settings have been changed, although you cannot determine from this number which options have been changed. After setting up the MODEM, record this number for possible later reference.

Summary Setup is an advanced feature designed to allow experienced users to quickly change option settings for any mode. Most options can be viewed from and changed using a single LCD screen. Summary Setup is the fastest way to selectively change multiple options; however, because the Summary Setup screens show numerical codes with very little explanation, this method of options selection is recommended only for experienced users.

Even though Summary Setup offers these advantages, it is recommended only for experienced users because there is very little guidance on the LCD screen to indicate which option is being changed.

Changes made through Summary Setup modify the active modem configuration and are saved to memory when you exit Summary Setup.

B.1 Summary Setup LCD Screens

Summary Setup (SUMMARY) is accessed from screen 6 of the SETUP menu. From the SUMMARY screen, choose SETUPS to change options—but for Hayes mode operation (only), choose AT to change options for which there are associated AT commands (Table B-1).

176

MODEM 32144

Appendix C: Connectors, Adapters,

and Jumpers

• LEASED LINE—RJ-11 modular jack, for (6-pin) leased line connection

• PHONE—RJ-11 modular jack, for connection to a telephone handset (optional)

These connectors are illustrated in Chapter 2, which explains how to install the modem and how to make the connections referred to above.

The modem includes an edge connector for optional rack mounting. When the modem is rack mounted, the edge connector performs the functions of all the connectors listed above (and the other connectors are not used).

C.1.1 C

ONNECTORPINASSIGNMENTS

For users who need to know connector pin assignments, this information is provided in Figure C-1 (DIAG, TX DIAL, RX DIAL, LEASED LINE, and PHONE connectors) and in Table C-1 (DTE interface connector).

This appendix provides a detailed description of al modem connectors, including pin assignments. It also includes a description of the modem jumper functions and a diagram that shows you where to find the jumpers.

C.1 Connectors and Adapters

The modem includes the following connectors (labeled on the rear panel as indicated below):

• DTE—25-pin (DB25) RS-232/D female cable connector, for connection to DTE (computer or terminal)

• DIAG—RJ-45 modular jack (diagnostic connector), for diagnostic port control (optional)

• POWER—Five-pin DIN connector for AC power

• TX DIAL—RJ-45 modular jack for connection to a dial line

• RX DIAL—(Ignore “RX DIAL” label.) RJ-45 modular jack for alternate leased line connection (when an 8-pin connector is required)

181

APPENDIX D: DC Voltage Models

Appendix D: DC Voltage Models

D.1 Introduction

The modems with codes MD833A-D12, MD833A-D24, and MD833A-D48 are pre-configured for DC voltage operation. The MD833A-D12 is preconfigured for use with a -12 VDC power source, the MD833A-D24 is preconfigured for use with a -24 VDC power source, and the MD833A-D48 is pre-configured for use with a -48 VDC power source.

This addendum provides installation and jumper information for the DC pre-configured modems for applications where an external DC power source will be used (i.e., not DC power provided from a rack enclosure). If the modem is to be installed in a rack, refer to the instruction manuals for the modem and the rack.

CAUTION

The -48 VDC model should be used only with an external DC power source.

For modems using an external DC power source, the information in this addendum about installation and jumper settings supersedes the information in the rest of the Modem 32144 manual. However, all other information in the instruction manual is applicable.

Power-on Screen

Appendix E: LCD Flow Chart

DCE-DTE

V.32bis/14.4M V.32 V4.51/3.25

Software revision levels (may be different than shown here.)

QUICK SETUP 2-W DIAL (HAYES)

TALK QUICK DIAL

SPEED TYPE DEC INC

* See reverse side of chart.

Continued from

SETUP TEST EIA MODEM

EIA CTS CD DSR

CTS to EIA NORM RTS TRUE

TEST OPTIONS DSR RMT

DSR during ALB ON OFF

EIA status screen: Not all abbreviations will be present at same time. (R in upper left corner indicates an incoming ring.)

D TR MR RS CS

TD LINE LEVELS. dBm

9600 TM ER CD RD

QUALITY 000 PKT: SIZE

Bar graph

<1> QUICK SETUP

<1>

****

SETUP TYPE LINE SPEED

V32

LINE TYPE 2W-D 2W-LL 4W-LL

<4>

<1>

DSR to EIA NORM TRUE XOVER

CD to EIA NORM TRUETOGGLE

REMOTE TEST ENABLE DISABLE

V25 DIAL (Async)

SETUP TEST RMT

<1>

MAX MIN

MAX RATE: DEC INC

EIA DTR ALBT RDLT

DTR from EIA NORMAL TRUE

<2> QUICK SETUP

V25 DIAL (Syn_c)

MAIN MENU

<2>MAIN MENU

RESET RATE

(Resets modem)

MIN RATE: DEC INC

19,200

<2>

RDL - DTE Ctrl'ed ENABLE DISABLE

ALB - DTE Ctrl'ed ENABLE DISABLE

TX=-09 RX=-24

<3> QUICK SETUP

V25 DIAL (Syn_b)

<3>MAIN MENU

RATE DOWN UP

0-300

V42 MODE OFF MANDAT AUTO

EIA TM

TM to EIA NORMAL TRUE

STATUS SCREENS

ECHO: msec

<4> QUICK SETUP

This screen is displayed only

if V.32bis mode is selected.

V42 MODE CLASS BREAK

MNP CLASS DEC INC

<3>

MODEM SETUPS CDLVL TXLVL

TRANSMIT LEVEL LEASED DIAL

TX LEVEL DEC INC

CARRIER DET. LEASED DIAL

CD LEVEL LEASED

-26 -33 -43

020 1.0

2-W DIAL (DUMB)

V42 CONTROL V42 SEL BUFFER

<1>

TX LEVEL (DL) PROG PERMIS

0 dBm

LVL

CD LEVEL DIAL

-26 -33 -43

Hz CHANNEL FREQ

OFFSET: 1.0 Hz

The Quick Setup screens are used to quickly select pre-set modem configurations for various applications.

<5> QUICK SETUP

2-W LEASED (ORG)

<1>

BUFFER SELECT ENABLE DISABLE

V42 SELECTION PROTOCOL V42bis

LAPM/MNP DEC INC

BREAK: DEC INC

MODEM SETUPS SQ COMEQ TREL

SIGNAL QUALITY 10^3 10^5

THROUGHPUT

<6> QUICK SETUP

V.42bis ENABLE DISABLE

NDT/NEXP

<2>

TRELLIS CODE ENABLE DISABLE

COMPR EQUAL DEC INC

15000 BPS

2-W LEASED (ANS)

V42 CONTROL DTE FLOW

Set

automatically

in Hayes

mode only.

DTE SPEED:

38,400

DEC INC

MODEM SETUPS TXCLK T1 RETRN

TRANSMIT CLOCK INT RX-CLK EXT

T1 timer: 0.8sec DEC INC

AUTO-RETRAIN ENABLE DISABLE

T-III

ERTX MODE

255 0233 00

QUICK SETUP MENU

<7> QUICK SETUP

4-W LEASED (ORG)

<2>

FLOW CONTROL DTE-DCE DCE-DTE

DCE-DTE NONE CTSon/off

DTE-DCE

RTS

DEC INC

<3>

RATE

V42bis 38400

<8> QUICK SETUP

4-W LEASED (ANS)

SETUP V42 ADDR DIALER

ADDRESS: DEC INC

<1>

<1> DCE-DTE

DTE-DCE DEC INC

MODEM SETUPS ANS/ORG ANSFREQ

ANSWER TONE 2225Hz 2100Hz

ANS/ORG DEFAULT ANSWER ORIGINATE

Except for the power-on screen, the data shown on these screens will change, depending on external conditions and the modem's operational status.

999,999

DC1/DC2 DC1/DC3

CTS

<4>

MODEM SETUPS FP SPK SPKVOL

FP ENABLE DISABLE

<9> QUICK SETUP

<2>

FLOW CONTROL PASSTHRU

PASSTHRU MODE ENABLE DISABLE

4-WLL V.33

DIALER DEC INC

<2>

<5>

SPEAKER VOLUME LOW MEDIUM HIGH

SPEAKER CONTROL OFF TILL-CD ON

<10> QUICK SETUP

2-W DIAL (208)

HAYESSPEED LIMIT

These screens are only displayed on models that support these

options. MODEM SETUPS screens may be numbered differently.

MODEM SETUPS

<6>

GUARD V13

V.13 DEC INC

GUARD TONE

550Hz 1800HzOFF

Use INC (increase) and DEC (decrease) to cycle through digits (0-9); use CTRL to cycle through dialing control characters(T, *, #, etc.).

<11> QUICK SETUP

2-W DIAL V32/208

AUTO-ANSWER ENABLE DISABLE

MODEM SETUPS PSWD

OFF

TRAINING LENGTH LONG SHORT TER

PASSWORD CHANGE CLEAR

CONFIRM

DEC SKIP INC

<12> QUICK SETUP

SETUP ANSWER DATA DISC

DATA FORMAT SYNC ASYNC

MODEM SETUPS

<7>

CARR CTS RTS-CTS

TRAIN

CARRIER SWITCH CONSTANT

CTS RTS ON

CTS DELAY: 0 ms DEC INC

4-WLL V.29

DATA FORMAT TYPE LENGTH PAR

CHAR LENGTH 91110

PHONE CELL: DEC PROG INC

<13> QUICK SETUP

V.29 FAST MASTER

<3>

DISCONNECT RX TX

RX SPACE DISC'T ENABLE DISABLE

PARITY: DEC INC

SETUP PHONE AUTO LCDI

<8>

AUTO-RECOVERY SELECT RETN TEST

NO AUTO-RECOVERY DEC INC

301-555-1234 DEC CTRL INC

<14> QUICK SETUP

Continued below

<1>

TX SPACE DISC'T ENABLE DISABLE

Set automatically in Hayes mode only.

NONE

<5>

LCD INTENSITY 5 DEC INC

TEST EVERY 20min DEC INC

RETURN: DEC INC

<15>

V.29 FAST SLAVE

DISCONNECT

<2>

CARR. CURR. RTS

RTS DISC'T

OFF

DEC INC

CURRENT DISC'T ENABLE DISABLE

CARRIER DISC'T ENABLE DISABLE

Hayes mode only: Use S register S10 to change these options.

<6>

314E

S-REG DEC INC

ATbefImqvwxy

0102101341

AT&c

Checksum. If this number changes, at least one option has been changed.

AT&c

SETUP SUMMARY

SUMMARY SETUPS S-REG

PRI

addr

0011214E0 999 99

AT PROFILES

0 1 &Y0

OFF

ATbefImqvwxy

0102101341

These screens allow for quick option selections. (Use arrow pushbuttons to view full display.) For further explanation, see Instruction Manual, appendix C, Summary Setup.

00:01

Pushing 3 changes from &Y0 to &Y1

Power-on Screen

Displayed on the Modem 32144.

V.32bis/14.4M V.32 V4.51/3.25

Software revision levels (may be different than shown here.)

D TR MR RS CS 9600 TM ER CD RD

TALK QUICK DIAL

MANUAL-DIAL TALK DATA

TD LINE LEVELS. dBm

QUALITY 000 PKT: SIZE

TX=-09 RX=-24

ECHO: msec

020 1.0

Hz CHANNEL FREQ

OFFSET: 1.0 Hz

THROUGHPUT

15000 BPS

Bar graph

STATUS SCREENS

<1>

AUTO-DIAL

* **

DIAL HANGUPCELL

DIAL FAILURE NO DTR

DIAL CELL: DEC DIAL INC

e00

This screen appears only in the event of a dial failure. Specific message appears on bottom line.

SETUP TEST RMT

<2>MAIN MENU

REMOT DIGIT LOOP ON OFF

255 0233 00

REMOTE CONTROL TEST

REMOTE TEST RDL RDLST

<1>

RDL SELFTEST ON OFF

ERTX MODE

V42bis 38400

Displayed only on the ALX V.32M and ALX V.32/14.4M.

RATE

REMOTE CTRL ADDR/C ADDR

Use pushbutton 2 to toggle between ADDR/C and SLOT/C.

<2>

ADDRESS : DEC INC

999,999

MAIN MENU RESET RATE

(Resets modem. LCD returns to power-on screen, then EIA status screen.)

If SLOT/C is selected from REMOTE screen 2 (above), the top line here will read SLOT NUMBER: 01.

<3>MAIN MENU

CHECKSUM MAIN PUMP

MAIN

m1_mt9bf2

V3.02.02

Data displayed here is for use by servicing personnel. Screens show software revision levels and various checksums for both the main processor and the data pump (transmitter, T, and receiver, R). It is unlikely that the numbers on your unit will match those shown here—this is normal.

19BB

Pump V2.03.1 U52 280C

(Accessed by pressing 1 from EIA status screen.)

U51 C5E8

LOCAL TEST ALB ALBST ST/E

ANALOG LOOPBACK ON OFF

ANALOG SELFTEST ON OFF

SELFTEST w/ERROR ON OFF

<1>

LOCAL TEST DLB ALBX ALXST

DIGITAL LOOPBACK ON OFF

ANALOG LOOP (EXT) ON OFF

ANALOG ST (EXT) ON OFF

Note: When a test is activated, the EIA status screen will be displayed.

<2>

182

MODEM 32144

D.2 Installation

Use the supplied cable to attach the modem to the external DC power source, as shown in Fig. D-1.

Fig. D-1. Attaching the supplied cable to the DC power source.

Refer also to Section 2.1, Installation but ignore information

about the AC power transformer cable.

DIAG

POWER

DIAL

LEASED

LINE

PHONE

Black

Red

Pos. (+) source

Neg. (-) source

183

APPENDIX D: DC Voltage Models

D.3 Jumper Settings

The power jumpers have been preset at the factory for DC voltage operation as shown in Tables D-1.

Table D-1. Jumper Settings for -12/-24/-48 VDC Operation

Jumper(s) Setting

JP2 Pins 2 and 3 connected JP3, JP4 Pins 1 and 2 connected (set to same position)

For other jumper settings, refer to the rest of this manual. (But for the DC modems, ignore the information in the manuals for jumpers JP2, JP3, and JP4.)

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MODEM 32144

D.4 Jumper Locations

The jumper locations are shown below for your information; however, since the jumper settings are pre-configured, you should not have to change them.

Fig. D-2. Partial view of modem circuit board, showing jumper

locations.

For each jumper, pin 1 is identified by a “1” on the modem circuit board. (The JP2 pin 1 label may be difficult to read; JP2 pin 1 is the pin closest to the edge connector.)

JP6

JP1

JP4

JP3

JP5

JP2

JP8

JP7

NOTES

177

APPENDIX C: Connectors, Adapters, and Jumpers

Figure C-1. Connector Pin Assignments.

All connectors are shown as viewed from the back of the modem. Pins not included in the listings above are not used.

Dial Line Connector

Function

A/MI

1 2 3 4 5 6 7 8

RJ-45

Ring

Tip

A1/MIC

REAR PANEL

DTE

DB25

Diagnostic Connector

1 2 3 4 5 6 7 8

RJ-45

Phone Connector

Function

1 2 3 4 5 6

RJ-11

POWER

DIAG PHONE

DIAL

3 4 5

LEASED

LINE

A Ring Tip A1

Leased Line

Connector

Function

1 2 3 4 5 6

RJ-11

RXLL

TXLL

RXLL

Pin Function

1 Constellation Y Output 2 Constellation X Output 4 Ground (for transmit and

receive data and constellation)

5 Receive Data (output from

modem)

6 Transmit Data (input to modem)

DIAG port always appears to a

system as a DCE port.

Line Connector

(Ignore “RX DIAL” Label)

1 2 3 4 5 6 7 8

RJ-45

1 2 7 8

Function TXLL TXLL RXLL RXLL

Alternate Leased

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MODEM 32144

Table C-1. Pin Assignments—DB25 TIA/EIA Interface Connector

Pin Function Designation Source

EIA ITU-T LCD

1 Frame ground—not connected AA 101

2 Transmit (send) data (TD) BA 103 TD DTE

3 Received data (RD) BB 104 RD Modem

4 Request to send (RTS) CA 105 RS DTE

5 Clear to Send (CTS) CB 106 CS Modem

6 Data Set (modem) Ready (DSR) CC 107 MR Modem

7 Signal ground (SG) AB 102 Ground

8 Carrier detect (CD) CF 109 CD Modem

9 Testing voltage, +10V +P Modem

10 Testing voltage, -10V -P Modem

15 Transmit clock (TC) DB 114 Modem

17 Receive clock (RC) DD 115 Modem

18 Analog loopback (ALB) control

CN DTE 20 Data terminal ready (DTR) CD 108/2 TR DTE 21 Remote digital loopback (RDL) CN DTE

control

22 Ring indicator (RI) CE 125 R Modem 24 External transmit clock (XTC) DA 113 DTE 25 Test mode indicator (TM)

CN TM Modem

+ voltage activates indicated loopback test (but only if ALB-DTE Ctrl’ed or RDL-

DTE Ctrl’ed option is enabled);—voltage disables test.

Alternately, pin 25 may be used for analog loopback (ALB) control.

179

APPENDIX C: Connectors, Adapters, and Jumpers

C.2 Jumpers

WARNING

Jumpers should be switched only by qualified service personnel.

For most applications, there is no need to reset the modem’s internal jumper switches. However, a jumper switch will have to be reset if you need to—

Connect frame ground to signal ground, Switch from A/A1 control to MI/MIC control, Strap the modem for use in a DC rack enclosure, or Change the function of EIA interface pin 25.

If you need to reset a jumper switch, refer to the following page to determine the jumper that should be switched, where it is located, and how it should be set. The jumpers are numbered on the circuit board; for example, JP4 is jumper 4. To access the jumpers, unscrew the four screws on the bottom of the modem and carefully lift off the cover.

WARNING

Improper setting of AC and DC power jumpers could result in serious damage to the modem.

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MODEM 32144

Table C-2. Jumper Switch Functions

Jumper(s) Position

Function

JP1 FG Frame and signal ground connected

Alternate position Not connected (no legend)

JP2, JP3 A1 A/A1 control (Set to same MI MI/MIC control position)

JP4, JP5, AC AC power JP8 Alternate position DCpower (for Telco 48 VDC battery) (Set to same position)

JP7 TM(output) Pin 25 used as test mode indicator

AL (input) Pin 25 used for analog loopback

As indicated by legend printed on modem circuit board.

Factory settings are shown in boldface.

167

APPENDIX B: Summary Setup

B.2 Changing Options via Summary Setup

The appearance of the three setup screens selected via SETUPS and AT (profile 0 or 1) is essentially the same: Brief descriptive information on the top line and a long string of numbers on the bottom line. The numbers are broken down into groups, with each group representing a category of options (dial line options, EIA interface options, etc.).

Each digit position represents an option, and the number in each digit position indicates the current option setting (parameter). To change an option setting, use the front panel pushbuttons to change the parameter (number), as explained in the following section.

The diagrams on the following pages show—

• Which options are included in each option group

• Which option is indicated by each digit position within the group

• The possible parameters for each option

B.2.1 S

UMMARYSETUPPUSHBUTTON

UNCTIONS

The three Summary Setup screens are different from all other modem screens in that you can scroll across the string of numbers; also, the pushbutton functions are different. For the three Summary Setup screens only, the modem pushbuttons function as follows:

• Pushbutton 1 moves the cursor to the left. Pushbutton 3 moves the cursor to the right. If the cursor is at the end of the screen, the screen will scroll one character at a time.

• Pushbutton 2 increments the blinking value (i.e., the parameter, or current option setting). The value will cycle through the highest possible parameter value and then back to 0 or 1.

• The right arrow button moves the screen to the beginning of the next group of options to the right. The left arrow button moves the screen to the beginning of the next group of options to the left. Groups of options are separated by blank spaces on the LCD.

+ 165 hidden pages

Black Box 32144 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual