3Com 3C882 ABOUT THIS GUIDE

ABOUT THIS GUIDE

Introduction

This guide describes how to install, operate, and

troubleshoot the 3ComImpact IQ External ISDN Modem,

referred to throughout this guide as the 3C882 ISDN modem.

Be sure to read the README.TXT or readme ﬁles on the

applicable software utility diskette for the latest product

information.

How to Use This Guide

The following table shows where to ﬁnd speciﬁc information

in this guide.

If you are looking for: Turn to:

General information Chapter 1

Instructions for installation Chapter 2

Instructions for configuration for an IBM or compatible PC Chapter 3

Instructions for configuration for a Macintosh computer Chapter 4

Advanced configuration Chapter 5

Instructions for placing and receiving data and voice calls Chapter 6

Troubleshooting tips Chapter 7

Instructions for ordering ISDN service Appendix A

Tabular summary of the AT command line set, S registers,

and result codes Appendix B

3C882 ISDN modem specifications Appendix C

Instructions for configuration using DOS Appendix D

Information about technical support from 3ComAppendix E

Contents

Main 3Com Corporation 95052-8145 Santa Clara, California 5400 Bayfront Plaza Page C ONTENTS Page 7 A D C B E F IGURES Page T ABOUT THIS GUIDE Introduction How to Use This Guide Conventions Table 1 and Table 2 list text and icon conventions that are used throughout this guide. 1 3C882 ISDN Modem Features Easy Installation and Use High Performance Protocols ISDN Standards and Interface Page 3C882 ISDN Modem Package Contents Before You Install the 3C882 ISDN Modem IBM PC or Compatible Requirements Apple Macintosh Requirements ISDN Information Page 2 ISDN M Familiarizing Yourself with the 3C882 ISDN Modem 3Com Impact IQ Page Installing a Serial Cable Installing the ISDN Cable Installing Analog Equipment Page Installing the Power Cable 3 IBM-COMPATIBLE PC Conguring the 3C882 ISDN Modem for a PC Installing the 3C882 Software Running SPID Wizard Page Page Page Page Conguring Multilink PPP Conguring the B Channel Rate Conguring Voice Call Routing Page Verifying the Conguration Page Setup Using Windows 95 Page Page Page Setup Using Windows NT RAS Page Page 4 APPLE MACINTOSH C Conguring the 3C882 ISDN Modem for a Macintosh Computer Installing the 3C882 Software Page Running SPID Wizard Page Page Page Page Conguring Multilink PPP Conguring the B Channel Rate Conguring Voice Call Routing Page Verifying the Conguration Page 5 C Advanced Conguration Parameter Default Values Page Page Changing The Parameter Settings Page 6 C Placing ISDN Data Calls Placing Calls Automatically Placing Calls Manually Placing Multilink PPP Calls Placing a 56K TollSaver Call Receiving ISDN Data Calls Placing Voice Calls Using an Analog Phone Port Receiving Voice Calls Using an Analog Phone Port 7 Checking the Basics Monitoring LEDs Monitoring the TEST LED Monitoring the D Channel LED Monitoring the B Channel LEDs Evaluating Symptoms and Solutions Table 7-1 lists symptoms of common problems, possible causes, and possible solutions. Page Using On-Line Help Finding More Information Contacting Technical Support Downloading Firmware to Your 3C882 ISDN Modem A Placing the ISDN Order Through 3Com Placing the ISDN Order Through Your Telephone Company Page AT&T 5ESS Switch NI1 AT&T 5ESS Custom Switch Northern Telecom DMS 100 Switch Siemens EWSD B S R EGISTERS , C AT Command Set Table B-1 summarizes the AT command set for the 3C882 ISDN modem. Page Page S Registers Page Page Page Result Codes Table B-3 lists the 3C882 ISDN modem result codes. C 3C882 ISDN Modem Specications RS-232 COM Port Pin Specications PC Serial Cable Pin Specications The DB25 male to DB9 female pin assignments for the PC serial cable are provided in Table C-2. Macintosh Serial Cable Pin Specications D DOS Conguration Using DOS Page Page E On-line Technical Services 3Com Bulletin Board Service World Wide Web Site 3ComForum on CompuServe 3ComFacts Automated Fax Service Support from Your Network Supplier Support from 3Com Returning Products for Repair G Page Page Page I Numerics A B C F I L M N T V W