Nortel Networks BCM1000 manual FEM wiring, Connecting the fiber cables

Chapter 10 Wiring the modules 139

—NetVision and NetVision data: IP Telephony Configuration Guide

FEM wiring

A Fiber Expansion module (FEM) allows you to upgrade from a Norstar system to a Business Communications Manager system by reusing the Norstar expansion modules. The expansion modules connect to the FEM module installed on a BCM1000, using the same fiber cable that connected them to the Norstar main housing.

Warning: Handling optical fiber cables:

If the cable is too long, ensure that it is coiled correctly.

Coil excess fiber carefully around the spool provided. Do not bend the cable around any tight corners. Bends in the fiber cable must not be less than 100 mm in diameter. Place the fiber cable spool into a slot at the back of the cable trough.

Note: If you enable all six jacks of the FEM module, the FEM module is the only module you can install on the BCM1000, because each port requires one DS30 bus. Refer to “FEM switch settings” on page 106.

Connecting the fiber cables

Follow these steps to connect your Norstar expansion modules to a FEM module installed into a BCM1000.

1Ensure the BCM1000 is properly powered and rebooted.

2Connect the fiber cables from the Norstar expansion modules to the jacks on the FEM module.

Note: Which DIP switch settings you chose will determine which FEM ports are available. Refer to “FEM switch settings” on page 106.

aConnect the Norstar Line Modules to the FEM beginning at fiber port 1.

bConnect Norstar Extension Modules to the FEM beginning at fiber port 6.

3Change the DN records in the Unified Manager or change the set wiring, as required, to match your system.

Warning: When you connect a Norstar station module to an FEM, the extension numbers of the telephones connected to the station module change. To keep the same extension numbers, change the DNs of the telephones or change the telephone wiring to correspond with the required DNs.

Installation and Maintenance Guide