Nortel Networks BCM1000 Benutzerhandbuch

Chapter 2 Telephony hardware

Installation and Maintenance Guide

The Global Analog Station media bay module (GASM8) provides the same functionality as the 
ASM8 with the addition of the following features:

•

support for calling line identification pass-through

•

the option to activate disconnect supervision at the device

•

the ability to pass a voice mail message indicator signal to activate a message waiting lamp on 
the telephone, if it has one

•

support for an Off Premise Extension (OPX). 

The GASM8 has one amphenol connector on the faceplate. For details about wiring the GASM8, 
refer to 

.

Ringer Equivalency (REN) for each module is 2 (two).

NOTE: The termination on the analog interface may consist of any combination of devices subject 
only to the requirement that the sum of the RENs of all the devices does not exceed the REN of the 
interface to which the device is connected. The ringer equivalency number, per port, for this 
module, is 1 (one).

The back of the GASM8 has two sets of DIP switches. The first set defines the DS30 bus and 
offset. The second set determines if the module allows an automatic firmware download from the 
system (BCM 3.6 software) or which country firmware the module will use. Refer to 

.

This section describes the modules that perform a specific job outside of the trunk and station 
description. Refer to 

•

The Fiber Expansion module (FEM), provides a fast way of upgrading from an existing 
Norstar system simply by plugging in Norstar expansion modules to the FEM box.

•

The DDI MUX module allows you to combine data and telephone trunks through one T1 
interface.

Table 7   Specialized modules

FEM

connects a maximum of six Norstar expansion 
modules

The switches on the FEM are used to 
turn fiber ports on and off. The FEM 
does not work correctly if you set these 
switches using the rules used for other 
media bay modules.