Related Manuals for 3Com AccessBuilder 980/000048/001
Summary of Contents for 3Com AccessBuilder 980/000048/001
- Page 1 ® Part No. 980/000048/001 Published June 1996 CCESS UILDER RIPLE ODEM UIDE 7000 ODULE...
- Page 2 Santa Clara, California 95052-8145 © 3Com Europe Ltd, 1996. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without permission from 3Com Europe Ltd.
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Page 3: Safety Information
MPORTANT AFETY NFORMATION WARNING: Warnings contain directions that you must follow for your personal safety. Follow all instructions carefully. Please read carefully and thoroughly the following information before installing the AccessBuilder 7000 Triple Modem Module: Exceptional care must be taken during installation and removal of the module. -
Page 4: Wichtige Sicherheitshinweise
ICHTIGE ICHERHEITSHINWEISE ACHTUNG: Die Warnungen enthalten Anweisungen, die Sie zur eigenen Sicherheit zu befolgen haben. Lesen Sie bitte die folgenden Informationen sorgfältig durch, bevor Sie den AccessBuilder 7000 Triple Modem Module einbauen: Auf besondere Vorsicht muß während des Ein- und Ausbaus des Einheits geachtet werden. -
Page 5: Information De
L’ INFORMATION DE ÉCURITÉ MPORTANTE AVERTISSEMENT: Les avertissements contiennent les instructions que vous devez suivre pour votre sécurité personnelle. Suivre toutes les instructions avec soin. Veuillez lire à fond l’information suivante avant d’installer le moyeu: Le soin exceptionnel doit être pris pendant l’installation et l’enlèvement du moyeu. -
Page 7: Table Of Contents
ONTENTS MPORTANT AFETY ICHTIGE ICHERHEITSHINWEISE L’ INFORMATION DE BOUT UIDE Introduction 1 How to Use This Guide 1 Conventions 2 Additional Safety Information 3 RIPLE ODEM Introduction 1-1 Principal Features 1-2 Implementation of V.32terbo 1-3 Typical Applications 1-5 Pack Contents Checklist 1-6 Registering Ownership of your Triple Modem Module 1-6 Pre-installation Requirements 1-7 NSTALLATION AND... - Page 8 ROUBLESHOOTING Troubleshooting Guide 3-1 Modem Health 3-1 Modem - DTE Connection 3-2 Modem - Telephone Line Connection 3-3 Connection Problems in Answering a Call 3-3 Connection Problems When Originating a Call 3-4 On-line Operation 3-6 Private-line Operation 3-6 Dial Backup Operation 3-6 ODEM PECIFICATION AND SSIGNMENTS...
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Page 9: Fcc Classa Verification Statement
ECHNICAL UPPORT On-line Technical Services D-1 3Com Bulletin Board Service D-1 Access by Modem D-1 Access by ISDN D-2 World Wide Web Site D-2 Support from Your Network Supplier D-3 Support from 3Com D-4 Returning Products for Repair D-5 NDEX... -
Page 11: About This Guide
BOUT Introduction This guide describes the features, installation and configuration of the AccessBuilder 7000 Triple Modem Module. This guide assumes that you have installed your AccessBuilder 7000 Access Concentrator and that the phone lines to which you want to connect the modems are installed and operational. How to Use This Guide This table shows where to find specific information: If you are looking for information on:... -
Page 12: Conventions
BOUT UIDE Conventions The icon conventions that are used throughout this guide are: Icon Type Information Note Caution Warning The text conventions used in this guide are: Convention “Enter” vs. “Type” Text represented as screen display Text represented as commands Keys Italics Description... -
Page 13: Additional Safety Information
Do not spill food or liquids on the unit. If the unit gets wet, isolate the electrical supply and contact your 3Com reseller. Do not push any objects into the openings of the unit. Doing so can cause fire or electric shock by shorting out internal components. - Page 14 BOUT UIDE...
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Page 15: Triple Modem Module
RIPLE ODEM ODULE Introduction This chapter outlines the features and uses of the AccessBuilder 7000 Triple Modem Module when installed in the AccessBuilder 7000 Access Concentrator chassis. The Triple Modem Module houses three modems on a single device module that operate independently of each other but are identical in the features and facilities they offer. -
Page 16: Principal Features
1: T HAPTER RIPLE Principal Features Support for dial-up transmission protocols: V.34 – 2-wire full duplex modems operating at data signalling rates of 33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800 and 2400 bps. Non-proprietary V.32 terbo – 2-wire full duplex modems operating at data signalling rates of 19200, 16800, 14400, 12000, 9600, 7200 and 4800 bps. -
Page 17: Implementation Of V.32Terbo
Introduction Asynchronous dial DTE data rates from 300 to 115200 bps. Modem configuration changes using the DTE interface or throught the Management Controller Module. Compatibility with the industry standard AT command set. Storage of up to 20 telephone numbers in directory locations. Dialling using AT commands, CCITT V.25bis commands or by raising DTR on the Host to modem interface, or by data being sent to the DTE interface. - Page 18 1: T HAPTER RIPLE ODEM ODULE negotiated between modems, providing a 16.7% increase in speed over that which can be negotiated using V.32bis. If the modem you are calling is unable to operate at the same high speeds as your modem, an optimum data transfer rate is negotiated between the two using the default configuration settings.
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Page 19: Typical Applications
AccessBuilder 7000 and gain access to the corporate LAN and its facilities through a terminal server (such as the 3Com CS3000/3100 series). The advantage of this method is that all devices on the corporate LAN can be accessed remotely by a large number of remote users. -
Page 20: Pack Contents Checklist
Before you install your Triple Modem Module, check the contents of the box against the pack contents checklist below. If any of the items have been damaged in transit or are missing, then contact the 3Com reseller from whom the equipment was purchased. -
Page 21: Pre-Installation Requirements
Pre-installation Requirements Pre-installation Requirements Before you install the Triple Modem Module into the AccessBuilder 7000 Access Concentrator chassis, check that the following requirements have been met: The AccessBuilder 7000 Access Concentrator must already be fitted with its power supply module(s) and the Management Controller Module if required. - Page 22 1: T HAPTER RIPLE ODEM ODULE...
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Page 23: Installation And Operation
NSTALLATION AND PERATION Overview This chapter describes how to install the AccessBuilder 7000 Triple Modem module into the AccessBuilder 7000 Access Concentrator chassis, how to connect to your DTEs and PSTN lines and how to read the LEDs on the module’s front panel. Ensure you read the safety information at the front of this guide before commencing installation of the AccessBuilder 7000 Triple Modem Module. -
Page 24: Installing The Module
2: I HAPTER NSTALLATION AND Installing The Module Before installing the module, read the Safety Information at the front of this guide. An AccessBuilder 7000 module consists of two parts; a front card and a back card that both connect to the chassis’ backplane. It is recommended that you install the module’... -
Page 25: Installing The Rear Card
Installing the Rear Card Figure 2-1 Installing The Rear Card 1 Locate the rear slot equivalent to the front slot into which you will install the front card. 2 Remove the metal blanking plate at the rear of the chassis and retain the screws. -
Page 26: Installing The Front Card
2: I HAPTER NSTALLATION AND Installing the Front Card Figure 2-2 Example of Installing A Front Card 1 Locate the front slot in the AccessBuilder 7000 chassis equivalent to the rear slot in which you have already installed the rear card. 2 Insert the front card into the slot ensuring that it is centered along the guide rails. -
Page 27: Connecting The Cables
Connecting the Cables The ports on the rear panel are arranged in two groups. Modem Lines 1-3 Each modem port has two connections: Dial Line (1, 3 & 5) The upper RJ45 connection in each pair connects to a normal dialled service, use this port to connect your modem to the line. -
Page 28: Front Panel Leds
2: I HAPTER NSTALLATION AND PERATION Front Panel LEDs This section describes the Triple Modem Module’ s LEDs. Most of the LEDs can only be seen when the front door of the AccessBuilder 7000 chassis is open. When the door is closed, only the PWR, ALARM, ALERT and TEST LEDs can be seen. - Page 29 Front Panel LEDs PWR (Power) When lit indicates that the module is receiving power from the chassis’ backplane and that the power circuits are functioning correctly. ALARM Lights to indicate that an event has occurred on one or more of the modems which has been configured to raise an alarm. See the AccessBuilder 7000 Access Concentrator User Guide for more information.
- Page 30 2: I HAPTER NSTALLATION AND PERATION...
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Page 31: Troubleshooting
ROUBLESHOOTING Troubleshooting Guide In this section we discuss the basic problems that can occur when using your modem. If you are having data communication difficulties such as periodic character loss, random errors, or constant format errors: use the loopback tests described in AccessBuilder 7000 AT Command Reference. With these tests you can usually isolate the fault in your system by using a process of elimination. -
Page 32: Modem - Dte Connection
3: T HAPTER ROUBLESHOOTING Modem - DTE Connection Modem does not accept or echo back AT commands Check that the cable between the serial port of the DTE and the modem is a standard RS232 cable. If the cable is bad, replace it. (Null modem cables, also known as cross-over cables, do not work in this application). -
Page 33: Modem - Telephone Line Connection
Troubleshooting Guide Modem - Telephone Line Connection Connection Problems in Answering a Call Modem does not receive a dial tone Attach a telephone direct to the wall outlet to check if a dial tone exists. Make sure the telephone line is connected to the appropriate modem’s rear panel PSTN jack. -
Page 34: Connection Problems When Originating A Call
3: T HAPTER ROUBLESHOOTING Connection Problems When Originating a Call Modem fails to go off-hook and originate a call Check that the modem’s configuration enables either AT dialling or V.25bis dialling. Note: A modem configured to accept AT commands cannot accept V.25bis commands, and vice versa. If using DTR dialling, check the telephone number stored in directory location 1, and check that the DTE is raising DTR from OFF to ON to initiate a dial. - Page 35 Troubleshooting Guide Intermittent disconnects, high error rates, or excessive retransmissions Perform a remote digital loop test as described in the AccessBuilder 7000 AT Command Reference. Modem establishes and disconnects a call You may have a poor telephone line connection. Disconnect and dial again.
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Page 36: On-Line Operation
3: T HAPTER ROUBLESHOOTING On-line Operation Data is scrambled Check that the character format (data bits, parity, and stop bits) is set to the same value in both modems. Missing data during a transfer Check that you are using the same method of flow control for both the modem and the DTE. -
Page 37: Pecification And Interface
NTERFACE Transmitter / Receiver Specifications Modulation CCITT V.34 (33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800, 2400 bps) Non-proprietary V.32terbo (19200, 16800, 14400, 12000, 9600, 7200, 4800 bps) CCITT V.32bis (14400, 12000, 9600, 7200, 4800 bps) CCITT V.32 (9600, 4800 bps) CCITT V.22bis (2400 bps) CCITT V.22 (1200 bps) -
Page 38: Appendix A: Modem Specification And Interface Pin Assignments
A: M PPENDIX ODEM PECIFICATION AND NTERFACE SSIGNMENTS Data Input Serial binary. Complies with CCITT V.28. Accepts levels ±3 volts to ±25 volts. (+)= space (-)= mark. Single wire ground return. 3000 to 7000 ohms load. Data Output Serial binary. Complies with CCITT V.28 ±12 volts nominal. Output impedance 300 ohms. -
Page 39: Physical Description
Physical Description Protocols Extended AT command set. Non-volatile memory. 5 preset factory, 2 user defined configurations and one power-up configuration. 20 stored telephone numbers. AT or V.25bis asynchronous, bisynchronous and HDLC synchronous commands are entered via the DTE interface. ASCII or EBCDIC character set used in V.25bis command mode. Autoanswer CCITT V.25 compliant. -
Page 40: Approvals Information
A: M PPENDIX ODEM Approvals Information This product complies with the electro-magnetic compatibility (EMC) requirements of EN 55022 Class A and EN 50082 (susceptibility). The product carries the CE certification mark to indicate conformance with the following EU directives: LVD (Low Voltage Directive (Safety) 73/23/EEC. EMC (Electro Magnetic Compatibility) Directive 89/336/EEC. -
Page 41: Interference And Safety Requirements
All the other apparatus shall comprise only: Apparatus approved (see note) for the purpose of connection between the apparatus and the digital circuit; and Cable or wiring complying with a code of practice for the installation of apparatus covered by this standard or such other requirements as may be applicable. -
Page 42: Pbx And Pabx Application
A: M PPENDIX ODEM PECIFICATION AND NTERFACE SSIGNMENTS CAUTION: Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type of battery as specified by the manufacturer. A used battery must be disposed of in accordance with the manufacturer’s instructions. -
Page 43: Ringer Equivalence
Approvals Information Ringer Equivalence REN is a guide to the maximum number of apparatus (for example, telephones) that can be simultaneously connected to one telephone line. The REN value of each apparatus is added together and must not exceed 4. Unless otherwise marked, a telephone can be assumed to have a REN of 1.0. -
Page 44: Dte Port Pin Assignments
A: M PPENDIX ODEM DTE Port Pin Assignments Each modem is equipped with a single serial port marked DTE, which can be used to enter asynchronous AT or V.25bis commands, and pass asynchronous or synchronous user data. This is a female 26-pin V.24 connector and can be used with X.21/V.11, v.24/V.28 or V.35/V.36 signalling. - Page 45 DTE Port Pin Assignments V.24/V.28 The DTE port terminates with a 26-way miniature SCSI connector. The port can be configured to support V.24 or V.28 signalling characteristics. The DTE port connecting cable is not supplied with the module. The following signalling characteristics should be observed when purchasing or fabricating a suitable cable.
- Page 46 A-10 A: M PPENDIX ODEM PECIFICATION AND NTERFACE SSIGNMENTS V.35/V.36 The DTE port terminates with a 26-way miniature SCSI connector. The port can be configured to support V.36 signalling characteristics. The DTE port connecting cable is not supplied with the module. The following signalling characteristics should be observed when purchasing or fabricating a suitable cable.
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Page 47: Pstn Port Cable Pin Assignments
PSTN Port Cable Pin Assignments A-11 PSTN Port Cable Pin Assignments Each modem on the communications card is equipped with a single PSTN line port, which is accessed via the appropriate DIAL LINE socket on the card’s interface module (refer to the rear panel diagram in Section 1.2 for an exact reference of which socket services which modem on the communications card). -
Page 48: Private Line Port Cable Pin Assignments
A-12 A: M PPENDIX ODEM PECIFICATION AND NTERFACE SSIGNMENTS Private Line Port Cable Pin Assignments Each modem on the communications card is equipped with a single Private line port supporting either a 2- or 4-wire connection, which is accessed via the appropriate PRIVATE LINE socket on the card’s interface module (refer to the rear panel diagram in Section 1.2 for an exact reference of which socket services which modem on the communications card). -
Page 49: B Technical Support
3Com provides easy access to technical support information through the variety of services described in this appendix. On-line Technical Services 3Com offers worldwide product support seven days a week, 24 hours a day, through the following on-line systems: 3Com Bulletin Board Service (3ComBBS) -
Page 50: Appendix B: Technical
56 Kbps. To access 3ComBBS using ISDN, dial the following number: (1) (408) 654-2703 World Wide Web Site Access the latest networking information on 3Com’s World Wide Web site by entering our URL into your Internet browser: http://www.3Com.com/ This service features news and information about 3Com products, customer service and support, 3Com’s latest news releases, selected... -
Page 51: Support From Your Network Supplier
Support from Your Network Supplier If additional assistance is required, contact your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services. -
Page 52: Support From 3Com
If you are unable to receive support from your network supplier, technical support contracts are available from 3Com. In the U.S. and Canada, call (800) 876-3266 for customer service. If you are outside the U.S. and Canada, contact your local 3Com sales office to find your authorized service provider: Country... -
Page 53: Returning Products For Repair
Returning Products for Repair A product sent directly to 3Com for repair must first be assigned a Return Materials Authorization (RMA) number. A product sent to 3Com without an RMA number will be returned to the sender unopened, at the sender’s expense. - Page 54 B: T PPENDIX ECHNICAL UPPORT...
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Page 55: Index
NDEX Numerics 3Com Bulletin Board Service (3ComBBS) D-1 3Com sales offices D-4 ALARM LED 2-7 ALERT LED 2-7 ANS LED 2-6 bulletin board service D-1 cable pin-outs A-8 CH 1 LED 2-7 CH 2 LED 2-7 CH 3 LED 2-7... - Page 56 NDEX SEND LED 2-7 technical information A-1 technical support D-1 TERM LED 2-6 TEST LED 2-7 Triple Modem features 1-2 overview 1-1 typical applications 1-5 troubleshooting 3-1 typical applications 1-5 V.32terbo 1-3...
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Page 57: Limited Warranty
LIMITED WARRANTY HARDWARE: 3Com warrants its hardware products to be free from defects in workmanship and materials, under normal use and service, for the following lengths of time from the date of purchase from 3Com or its Authorized Reseller: Internetworking products... - Page 58 3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER'S OR ANY THIRD PERSON'S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR OR MODIFY, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.
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Page 59: Fcc Classa Verification Statement
FCC CLASS A VERIFICATION STATEMENT This equipment has been tested with a class A computing device and has been found to comply with part 15 of FCC Rules. Operation in a residential area may cause unacceptable interference to radio and TV receptions requiring the operator to take whatever steps are necessary to correct the interference.
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