3Com External ISDN Modem quick start Installing the 3C882 Isdn Modem, Installation Diagram

23COMIMPACT™ IQ EXTERNAL ISDN MODEM QUICK START INSTRUCTIONS

Installing the 3C882 ISDN Modem

To install the 3C882 ISDN modem refer to Figure 1 and follow these instructions. The numbers shown in Figure 1 correspond to the steps which follow.

9VDC MAX

•5A

1

RESET

7

2

5

U

	-232	ISDN
RS

34

1

	2
8	6

Figure 1 Installation Diagram

1Insert the 25-pin male end of a serial signal cable into the RS-232 serial port on the 3C882 ISDN modem’s back panel and tighten the connector screws.

2Connect the other end of a serial signal cable to a serial COM port on the back of your computer and tighten the connector screws.

3Connect the RJ-45 (8-pin) connector end of the RJ-45/RJ-11 ISDN cable to the RJ-45 ISDN line port labeled ISDN U on the 3C882 ISDN modem’s back panel.

4Connect the RJ-11 (6-pin) connector end of the RJ-45/RJ-11 ISDN cable to the RJ-11 ISDN wall jack.