Black Box 32144 Manuale utente

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 rack-

mount versions of the modem.

Specialized low-profile rack-mount

versions, designed for use in high-

density 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

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 auto-

recovery.

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

OMMAND

UIDELINES

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 THE

AYES

ODE

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 2-

Wire 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

UICK

ETUP

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

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