3Com Impact External ISDN Modem, Quick Start Instructions

®

3C

OM

I

MPACT

™ IQ 

E

XTERNAL

 ISDN M

ODEM

Q

UICK

 S

TART

 I

NSTRUCTIONS

 Part Number 09-0988-000 July 1996

The following information will help you install and configure 
the 3ComImpact



 IQ External ISDN Modem. Refer to the 

3ComImpact IQ External ISDN Modem User Guide

 for additional 

information.

Site Preparation

To install and use the 3C882 ISDN modem successfully, you 
must have the following:

■

Correct ISDN service installed at your location with an 
available ISDN RJ-11 outlet. If you have not ordered ISDN 
service yet, see Appendix A of the 

3ComImpact IQ External 

ISDN Modem User Guide

.

■

ISDN telephone numbers.

■

A computer that meets UL® standards in the United States or 
is certified to CSA standards in Canada. Refer to the User 
Guide section “IBM PC or Compatible Requirements” for an 
IBM or IBM-compatible PC or the section “Apple Macintosh 
Requirements” for an Apple® Macintosh® computer. 

■

For Macintosh users, one 25-pin male to mini DIN 8-pin male 
serial cable. Refer to the information enclosed in your 3C882 
ISDN modem package to order a free cable. If you are 
providing your own serial cable, ensure that it meets the pin 
specifications provided in Appendix C of the User Guide.