3COMIMPACT IQ External Isdn Modem User Guide
 3Com Corporation 5400 Bayfront Plaza Santa Clara, California
 Year Limited Warranty
 Contents
 Placing Isdn Data Calls
Configuring Multilink PPP
 Registers
AT&T 5ESS Custom Switch A-4
 Support from 3Com E-4 Returning Products for Repair E-4
World Wide Web Site
 Figures
 Main 3C882 Configuration Steps for a Macintosh
 Pin Descriptions
Tables
 Advanced configuration Chapter
How to Use This Guide
About this Guide
Introduction
 Conventions
 Introduction
Network Access with the 3C882 Isdn Modem
 Easy Installation and Use
3C882 Isdn Modem Features
3C882 Isdn modem provides the following features
 Protocols
High Performance
Isdn Standards and Interface
Ansi V.120 rate adaption
 Diagnostics
Voice Features
Warranty
Security
 Before You Install the 3C882 Isdn Modem
3C882 Isdn Modem Package Contents
 Apple Macintosh Requirements
IBM PC or Compatible Requirements
 Isdn Information
Isdn Switch Type
Isdn Information Sheet
3ComImpact IQ Isdn Modem
 Before You Install the 3C882 Isdn Modem
 Main hardware installation steps are depicted
Installing the 3C882
 Familiarizing Yourself with the 3C882 Isdn Modem
Front Panel LED Indicators
 As power is supplied to the unit
Front Panel LED Indicator Definitions
Color Description
Green
 You will need the following type of serial cable
Installing a Serial Cable
 Installing the Isdn Cable
 Analog Equipment Connection
Installing Analog Equipment
 Installing Analog Equipment
 Power Cable Connection
Installing the Power Cable
 IBM-COMPATIBLE PC
Configuration for AN
Configuring the 3C882 Isdn Modem for a PC
Main steps are shown in Figure
 To install the 3C882 Isdn modem software
Installing the 3C882 Software
Click OK
 Double-click the 3ComImpact IQ 3.0 icon shown in Figure
Running Spid Wizard
You will see a start message, as shown in Figure
 First Telephone Number Dialog Box for PC
 Second Telephone Number Dialog Box for PC
 Configuration dialog box buttons do the following
Click Finish
 Configuring the 3C882 Isdn Modem for a PC
 Appears Click Finish
Configuring Multilink PPP
 Configuring Voice Call Routing
Configuring the B Channel Rate
 Configuring the 3C882 Isdn Modem for a PC
 11 Configuration for One Telephone Number & Two Devices
Verifying the Configuration
 Configuring the 3C882 Isdn Modem for a PC
 12 New Hardware Dialog Box
Setup Using Windows
 13 Install From Disk Dialog Box
 15 Install New Modems Dialog Box
 16 Modem Manufacturers and Models Dialog Box
 Setup Using Windows NT RAS
 18 Remote Access Setup Dialog Box
17 Network Settings Dialog Box
 Configure Port dialog box appears
Remote Access Setup dialog box appears
 Configuring the 3C882 Isdn Modem for a Macintosh Computer
Configuration for AN Apple Macintosh Computer
 Click Continue. -3 appears
Message box appears
 Click Continue. -4 appears
Click OK This completes the software installation procedure
 Select Modem Port Screen
3ComImpact IQ Program Icon
 Spid Wizard Start Screen
 10 First Telephone Number Screen for Macintosh
 11 Second Telephone Screen for Macintosh
 12 Successful Configuration Screen
 Quit. Click Quit to leave the Configuration dialog box
 Configuring the 3C882 Isdn Modem for a Macintosh Computer
 15 Configuration for One Telephone Number per Device
 Verifying the Configuration
 Configuring the 3C882 Isdn Modem for a Macintosh Computer
 Advanced Configuration Parameter Default Values
Advanced Configuration
 DBA
 Baud Rate
Auto Answer
 Send the command AT $B 230400 to the 3C882 Isdn modem
Changing The Parameter Settings
 Autobaud Enabled
Auto Answer Disabled
Type
Answer
 Calls
Placing and Receiving
Placing Isdn Data Calls
 Placing Calls Manually
Placing Calls Automatically
 Placing Multilink PPP Calls
 An example is as follows ATD 1 908 555 1212 & 1 908 555
Placing a 56K TollSaver Call
 Receiving Isdn Data Calls
When the 3C882 Isdn modem receives a voice call,
An example is as follows Atdd 1 908 555
Channels flash and then remain lit
 Receiving Voice Calls Using an Analog Phone Port
Placing Voice Calls Using an Analog Phone Port
 Checking the Basics
Troubleshooting
 Monitoring the Test LED
Monitoring LEDs
Monitoring the D Channel LED
 Monitoring the B Channel LEDs
Evaluating Symptoms and Solutions
 LED remains lit Properly configured You receive a
Symptom Possible Cause Solution
Cannot be sent Upon power up Previous firmware
Do not remain Or application software or
 Finding More Information Contacting Technical Support
Using On-Line Help
Downloading Firmware to Your 3C882 Isdn Modem
Following on-line help is available
 Placing the Isdn Order Through 3Com
Ordering Isdn Service
Placing the Isdn Order Through Your Telephone Company
Give the representative the 3C882 Isdn modem Isdn code
 Number of Telephone Numbers Package K Package U
Table A-1 Isdn Order Codes
 Circuit-switched Data
Switch
Telephone company with the information provided
Table A-2
 Switch
 Switch, supply the telephone company with the information
To order Isdn service for the Northern Telecom DMS
Provided in Table A-4
Dynamic
 Key System Ekts Flexible Call Offering FCO Yes †
Ewsd
 AT Command Set
AT Commands REGISTERS, and Result Codes
 Answer mode only
Host computer default
\Q0 disables flow control
Hardware flow control default
 Reset AT Z
Settings AT \S
+++ Enter command state
\T0 disables inactivity timer default
 Registers except S0 are the 3Com extended registers
Registers
 Isdn
 Default S65 Isdn Caller ID for Voice Calls for Phone Port
 S75 Connection Delay
 Table B-3 lists the 3C882 Isdn modem result codes
Result Codes
 3C882 Isdn Modem Specifications
Specifications
 Clear to Send CTS From Isdn modem
RS-232 COM Port Pin Specifications
 Macintosh Serial Cable Pin Specifications
PC Serial Cable Pin Specifications
Receive Data RD Send Data SD
 Configuration Using DOS
Configuration Using
To copy the README.TXT file, at the C\3Com prompt, type
 Use the Space Bar to select the 3C882 Isdn modem’s COM port
 Configuration Using DOS
 3Com Bulletin Board Service
On-line Technical Services
Technical Support
 Call the telephone number nearest you
World Wide Web Site
 3ComForum on CompuServe
3ComFacts Automated Fax Service
To use 3ComForum Log on to CompuServe
Press Return to see the 3ComForum main menu
 Support from Your Network Supplier
U.S. and Canada, call 800 876 3266 for customer service
Support from 3Com
Returning Products for Repair
 Async-Sync PPP Conversion
Glossary
Channel
 COM port
 Layer
Isdn
 120
Plain old telephone service
 Index
Analog equipment installation 2-6 analog port
Numerics
Apple macintosh requirements 1-6 Async-Sync PPP
 Registers B-4 Serial cable installation
Data Using AT commands 6-2 voice
DMS 100 A-5
Result codes B-8
 Index
 Limited Warranty
 Santa Clara, CA 95052-8145 408
 3COM END User Software License Agreement
 For civilian agencies
 Interference Handbook
 Canadian Notice
  1996, 3Com Corporation