Chapter 4 Selecting the media bay modules for your system 65

Note: If you Choose a CTM8 or a 4X16 module, there are some restrictions about the offsets you can choose. Refer to the DIP switch settings in “CTM/GATM switch settings” on page 93 and “4X16 switch settings” on page 97 for details

1Make a list of modules and the space requirements for each module you chose. Refer to Table 9.

Table 9 Matching modules to DS30 bus capacity

Channel split 2/6 (default) _____

3/5 (extra IP lines) _____

Type of module

Number required DS30 bus/offsets required

2Set the bus numbers and offsets on the DIP switches of the module. Refer to Chapter 7, “Setting media bay module DIP switches,” on page 83. Note that you assign trunk modules starting from the bottom DS30 bus, and you assign station modules starting from the top DS30 bus.

3Install the modules into the BCM1000 or BCM1000e. Refer to Chapter 8, “Installing media bay modules,” on page 107.

Installation and Maintenance Guide

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Nortel Networks BCM1000 manual Matching modules to DS30 bus capacity, Channel split 2/6 default