Black Box MD885A-R2 Manuale utente

CUSTOMER

SUPPORT

INFORMATION

Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)

FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: [email protected]

AUGUST 1999

MD885A-R2

MD885A-R3

MD885AE-R2

MD885C-R2

Modem 34336

MODEM

34336

123ENT

123

601745301 Rev. A

NOTE

All models include the modem, (1) leased line cable, (1) dialup phone cable

and this user manual. The MD885A-R2, MD885AE-R2, and MD885A-R3

include a power supply. The MD885A-R3 also includes (1) 10-ft. RS-232

cable and (1) DB9 F to DB25 M adapter.

FCC Information

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 Industry Canada.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites

applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le

brouillage radioélectrique publié par Industrie Canada.

TRADEMARKS USED IN THIS MANUAL

Hayes®is a registered trademark of Hayes Microcomputer Products, Inc.

Microcom Networking Protocol®and MNP®are registered trademarks of

Microcom Systems, Inc.

Any trademarks mentioned in this manual are acknowledged to be the property of the

trademark owners.

Modem 34336

Table of Contents

1.0 Specifications .....................................................................................6

2.0 Quick Start..........................................................................................8

2.1 Installation ..................................................................................8

2.1.1 Unpacking ................................................................................8

2.1.2 Package Contents......................................................................8

2.1.3 What You Will Need..................................................................8

2.1.4 Connections ..............................................................................8

2.1.5 Jumpers....................................................................................10

2.2 Front Panel LCD And Controls ..............................................11

2.2.1 Power-On Screen ...................................................................11

2.2.2 EIA Status Screen ...................................................................12

2.3 Quick Setup ..............................................................................13

2.4 Basic Operation .......................................................................16

2.4.1 2-Wire Dial (Hayes) Mode .....................................................16

2.4.2 2-Wire Dial (V.25 bis) Mode ..................................................18

2.4.3 2-Wire Dial (Dumb) Mode ....................................................19

2.4.4 Leased Line (2- or 4-Wire) Mode .........................................21

2.4.5 V.33 Leased Line Operation .................................................22

2.4.6 2-Wire Dial (Bell 208) Operation .........................................22

2.4.7 4-Wire Leased Line V.29 Mode ..............................................23

2.4.8 V.29 Fast Master and Slave Modes .........................................24

2.5 Problem Solving .......................................................................25

3.0 Modem Setup Options ..................................................................27

3.1 Methods For Selecting Options ..............................................27

3.2 Selecting Options From The Front Panel ..............................28

3.2.1 Pushbuttons And The LCD ...................................................28

3.2.2 How To Select Options...........................................................29

3.3 Options .....................................................................................32

Table of Contents

3.3.1 V.42 Error Correction Options .............................................35

3.3.2 Dialer Mode ...........................................................................41

3.3.3 Data Format Options .............................................................42

3.3.4 Disconnect Options ...............................................................43

3.3.5 Test Options ...........................................................................44

3.3.6 EIA Options ............................................................................44

3.3.7 Modem Setups .......................................................................46

3.3.8 V.33 and BELL 208A/B Options ..........................................49

3.3.9 Options Accessible With Summary Setup Only ...................50

4.0 General Operation and Special Features...................................54

4.1 Quick Reset ..............................................................................54

4.2 Phone Number Storage ...........................................................54

4.3 Leased Line Auto-Recovery .....................................................55

4.3.1 Autodial Backup .....................................................................57

4.3.2 Exit From Leased Line Auto-Recovery .................................57

4.3.3 Leased Line Auto-Recovery Options ....................................58

4.4 Dial Line Auto-Recovery ..........................................................58

4.4.1 Setting Up The Modem For Dial Line Auto-Recovery .........58

4.4.2 Recovery Procedure ...............................................................58

4.5 DTR Dialing .............................................................................60

4.5.1 Dialing A Stored Number ......................................................60

4.5.2 Answer Mode Operation .......................................................60

4.6 Dumb Mode And Bell 208 Operation ....................................60

4.7 Modem Security Operation .....................................................62

4.8 Modem-Controlled Remote Control .......................................66

4.8.1 Direct Modem-to-Modem Remote Control ..........................66

4.8.2 Remote Control through a Rack Controller.........................67

4.9 Diagnostic Interface Control ..................................................71

4.9.1 Diagnostic Port .......................................................................71

4.9.2 Diagnostic Port Commands ..................................................71

4.9.3 Responses To Diagnostic Port Commands ...........................73

4.9.4 DTE Displays ..........................................................................75

4.9.5 Disconnecting From A Diagnostic Link ...............................75

Modem 34336

4.10 Automatic Fallback ..................................................................76

4.10.1 Operating Mode Fallback ......................................................76

4.10.2 V.32 Speed Fallback ...............................................................78

4.11 V. 13 Operation ........................................................................80

5.0 Hayes Emulation Mode .................................................................81

5.1 Hayes Mode Autodialer ...........................................................81

5.1.1 Enabling The Hayes Mode Autodialer .................................81

5.1.2 Command Guidelines ............................................................81

5.1.3 Result Codes ...........................................................................84

5.1.4 Transmission Speed ...............................................................84

5.2 Hayes Compatible Commands ................................................84

5.3 S Registers ................................................................................90

5.3.1 Reading And Setting Registers ..............................................86

5.3.2 S Register Functions ..............................................................86

5.4 Selecting Options In Hayes Mode ..........................................94

5.4.1 Saving Option Selections .......................................................94

5.4.2 Profile 0 and Profile 1.............................................................94

5.5 Hayes Mode Reference Tables ................................................95

6.0 V.25 bis Autodialer .......................................................................107

6.1 Enabling The V.25 bis Autodialer .........................................107

6.2 V.25 bis Autodialer Commands ............................................108

6.3 Dialing Parameters ................................................................112

6.4 V.25 bis Result Codes .............................................................112

6.5 DTR Dialing In V.25 bis Mode ..............................................112

7.0 Diagnostics ......................................................................................113

7.1 When And Why To Test ........................................................113

7.2 Symptoms And Scope Of The Problem ...............................113

7.3 Physical Inspection ................................................................114

7.4 Overview Of Modem Diagnostics ..........................................114

7.5 How To Select And Activate Tests ........................................115

7.5.1 Front-Panel Control .............................................................115

7.5.2 Running Tests In Hayes Mode.............................................115

7.5.3 Remote Test Control ...........................................................115

Table of Conents

7.6 Diagnostic Monitoring: Status Screens .................................115

7.6.1 EIA Status Screen .................................................................115

7.6.2 Other Status Screens.............................................................116

7.7 Local Modem Diagnostics ......................................................118

7.7.1 Analog Loopback (ALB) Test .............................................118

7.7.2 Analog Loopback Self Test (ALBST) .................................119

7.7.3 Analog Loopback Self Test With Errors (ST/E) ...............120

7.7.4 External Analog Loopback (ALBX) Test ...........................121

7.7.5 External Analog Loopback Self Test (ALXST)...................123

7.7.6 Digital Loopback Test (DLB) .............................................124

7.8 Remote Modem Diagnostics......................................................126

7.8.1 Remote Digital Loopback (RDL) Test ...............................126

7.8.2 Remote Digital Loopback Self Test (RDLST) ....................127

Appendix A: DB25 Pin Assignments..........................................................129

Appendix B: Quick Setup Configurations .............................................130

Appendix C: Summary Setup .......................................................................135

Appendix D: Jumpers ......................................................................................144

Appendix E: LCD Flow Charts ....................................................................147

Modem 34336

1.0 Specifications

Available Configurations — Stand-alone or rack-mount

Compatibility — V.29 9600, 7200, 4800

V.32 terbo 19.2 or 16.8 kbps

V.33 14.4 or 12.0 kbps

V.32 bis 14.4, 12.0, 9.6, 7.2, or 4.8 kbps

V.32 9.6 or 4.8 Kbps

V.34+ 33.6, 31.2, 28.8, 26.4, 24, 21.6, 19.2,

16.8, 14.4, and 12 kbps, 9600, 7200,

4800, and 2400 bps

V.34 28.8, 26.4, 24, 21.6, 19.2, 16.8, 14.4,

and 12 Kbps, 9600, 7200, 4800, and

2400 bps

V.22 bis 2.4 kbps,

V.21 300 bps

Bell 208A/B 4.8 kbps

Bell 212A 1.2 kbps

Bell 103 0 to 300 bps

Data Rates — Asynchronous: 300 to 19,200 bps

Synchronous: 600 to 19,200 bps

Data Format — Asynchronous: 9, 10, or 11 bits, serial, binary

Synchronous: Serial, binary

Operation — Full duplex over dialup or leased line

Simulated half duplex V.13 operation

Fallback — Data Rates: 16.8, 14.4, 12.0, 9.6, 7.2, 4.8,

2.4, 1.2, or 0.3 kbps

Operation: V.22 bis, V.22, V.21, or V.23

Supported DTE Speeds — 300 to 115,200 bps

Modes — V.34+ 33.6, 31.2, 28.8, 26.4, 24, 21.6, 19.2, 16.8,

14.4, and 12 kbps, 9600, 7200, 4800, and

2400 bps; full duplex over 2-wire line

(Trellis coded)

V.34 QAM at 28.8, 26.4, 24, 21.6, 19.2, 16.8,

14.4, and 12 kbps, 9600, 7200, 4800, and

2400 bps; full duplex over 2-wire line

(Trellis coded)

V.34 Extended AT: 33.6 Kbps, TR-301 proposed

V.32 terbo QAM at 19.2 and 16.8 Kbps; V.32bis

fallback at 14.4 Kbps and lower

V.33 QAM Trellis coded at 14.4 and 12.0 Kbps

V.32 bis QAM at 14.4, 12.0, 9.6, 7.2, and 4.8

V.32 Kbps; echo cancel, full duplex over

2-wire line (Trellis coded at 7.2 Kbps and

higher, or non-coded at 9.6 Kbps)

1.0 Specifications

V.29 QAM at 9600, 7200, and 4800 bps

V.27 8-phase DPSK at 4800 and 2400 bps

V.26 4-phase DPSK at 2400 and 1200 bps

V.23 FSK at 1200/75 bps, full duplex

V.22 bis: QAM at 2400 bps; bandsplit, full duplex

V.22: DPSK at 1200 bps; bandsplit, full duplex

V.21: PSK at 0 to 300 bps; bandsplit, full duplex

Autodialer — Automatic dialing using rotary pulses or tone

signaling; supports Hayes AT commands or

V.25 bis commands

Answer Modes — Automatic and manual answer

Equalization — Receiver: Automatic adaptive equalization

Transmitter: Selectable compromise equalization

(4 types)

Line Requirement — Unconditioned

Transmit Timing — Internal, external, or slaved to receive clock

Transmit Level — Leased: Selectable, 0 to -15 dBm

Dial: Permissive or programmable

Interface — Terminal: RS-232C/D, CCITT V.24/V.28

Dialup Line: 8-pin RJ-45 modular connector with

A/A1 and MI/MIC control

Leased Line: 6-pin RJ-11 modular connector

Diagnostic: 8-pin RJ-45 modular connector

Carrier Detect Threshold — Leased line: -26, -33, or -43 dBm; selectable

Dial line: -34, 41, or -51 dBm; selectable

Test Capabilities — Analog loopback, analog loopback self-test,

self-test with errors, digital loopback, remote

digital loo.pback self-test, external analog

loopback (4-wire), external analog loopback

self-test (4-wire); front-panel TIA/EIA or front-

panel Hayes control

AC Power — Stand-alone: 90-132 VAC, 60 Hz ±5%

Rackmount: 117/220 VAC

Power Consumption — 13 watts

Heat Generation — 44 BTU/hr

Ringer Equivalence — 0.7 B

Environment — Ambient temp: 32 to 120°F (0 to 49°C)

Storage temp.: 20 to 180°F (-7 to 82°C)

Relative humidity: 5 to 90% at 24°C (75°F)

non-condensing

Size (stand-alone unit) — 2.5"H x 9.7"W x 10.1"D (6.4 x 24.6 x 25.7 cm)

Weight — Stand-alone: 4.1 lb (1.9 kg)

Rackmount: 2 lb. (0.9 kg)

Modem 34336

2.0 Quick Start

All information in this manual applies to both the stand-alone and rack-

mount versions of the Modem 34336.

UICK

ETUPS FOR A

UICK

TART

The simplest and fastest way to set up the Modems for immediate use is to

select one of the factory-preset Quick Setup configurations.

Quick Setups are explained in Section 2.3, following installation instructions

(Section 2.1) and a brief introduction to the Modem’s front-panel display and

controls (Section 2.2).

2.1 Installation

2.1.1 U

NPACKING

Many early modem failures are a result of damage done during shipping.

Visually inspect your modem. Keep the original shipping carton in case

you have to return the modem for any reason.

2.1.2 P

ACKAGE

ONTENTS

All models include the following cables:

• A two-conductor crossover cable for a dial-line connection.

• A four-conductor cable for a leased-line connection.

Both cables have an eight-pin modular connector (RJ-45) on one end and

a six-pin modular connector (RJ-12) on the other end. You will need to use

both of the supplied cables if you want to use the Modem for Leased-Line

Auto Recovery, which requires both a leased-line and dial-line connection.

The MD885A-R2, MD885AE-R2, and MD885A-R3 include a power supply.

The MD885A-R3 package also includes additional cables:

• (1) 10-ft. RS-232 cable

• (1) DB9 F to DB25 M adapter

2.1.3 W

HAT

ILL

EED

• You will need an EIA RS-232 interface cable (supplied with the MD885A-

R3, not supplied with the MD885A-R2, MD885AE-R2, or MD885C-R2) to

connect the Modem to a DTE (data terminal equipment, usually a

computer).

2.0 Quick Start

• If you are operating the Modem in a manual dial mode, you also need

a standard telephone set.

2.1.4 C

ONNECTIONS

Figure 2-1 shows how the Modem is connected to the computer or terminal,

AC power supply, phone lines, and handset.

Do not install the modem more than 50 feet (15.2m) from the DTE (the

EIA standard maximum length for interface cable). For DTE speeds greater

than 19.2 Kbps, a shorter low-capacitance DTE interface cable should be used.

Call technical support for information on which cable will support your

application.

For all applications:

• Connect your RS-232 cable to the rear-panel DB25 connector labeled

DTE. Connect the other end to your computer or other DTE.

• Attach the power transformer cable (included) to the rear-panel

connector labeled POWER. Plug the other end into an AC outlet.

Figure 2-1. Modem 34336 Connections.

DTE DIAG

DIAL

LEASED

LINE PHONE

POWER

DTE AC outlet Telephone

Dialup

Line

Leased

Line

RS-232

cable

Power

trans-

former

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