3Com 3C892 manual Installing the Isdn LAN Modem, Description, Before You Begin

Installing the ISDN LAN Modem 27

Back Panel Connector The back panel provides the following components.

Description

10-18 VDC
0.8 A MAX	RESET	4	3 LAN 2	1	ISDN
	1 PHONE 2
Power	Two Analog		Four Ethernet		ISDN
Connector	Reset Button Telephone Ports		10Base-T Connectors		BRI Interface

Figure 12 ISDN LAN Modem Back Panel

From left to right the back panel consists of the following.

■Power: Connect the power module cable to this port.

■Reset: Press this button for no more than a couple of seconds if you have to reset the unit. This causes the software to restart while maintaining your configuration profile which includes service provider information and ISDN line telephone numbers.

■Two Analog Telephone Ports: You can connect analog equipment such as a fax machine or telephone to these ports.

■Four 10BASE-T Ethernet Ports: Connect the computers to these ports or another Ethernet hub to add up to 25 users.

■ISDN Basic Rate Interface Port: Connect the ISDN cable to this port.

Installing the ISDN LAN Modem

Before You Begin

This section describes how to do the following.

■Install the ISDN cable

■Connect to a 10BASE-T Ethernet LAN

■Install analog equipment

■Install the power cable

Before you begin, you will need the following in addition to the ISDN LAN Modem which was provided in the package:

■RJ-45 (8-pin) to RJ-11 (6-pin) cable labeled ISDN which was provided in the package.

■10BASE-T Ethernet cable (8-pin to 8-pin connectors) labeled Ethernet which was provided in the package. It is recommended that you use the cable provided. If, however, you choose to use another cable it must be a straight-through 10BASE-T Ethernet cable. It cannot be a crossover cable.

■Power adapter provided (you must use the power adapter provided in the package).