Nortel Networks BCM1000 - Manual (Page 117)

Chapter 4 Selecting the media bay modules for your system 117
Installation and Maintenance Guide
Determining module channel requirements
Figure 39 shows how much of a DS30 channel each module requires.
Figure 39 Space requirements for media bay modules
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 switch settings” on page
143 and “4X16 switch settings” on page 145 for details
1 DTM
3 BRIs
4 CTMs
CTM8s
per DS30
per DS30
ASM8s
1 DSM 16
1 DSM 32
Trunks (lines) Stations (extensions)
4X16
1 DECT
1 offset of
1 full DS30
Combination and specialized
per DS30
per DS30
per 2 DS30
per DS30
1 DS30 channel
channel
for lines
channel
channel
channel
channel
channel
channels
for telephone
channel
Note: The FEM module requires a
DS30 channel for each port that is
active. If all ports are active,
no other modules can be added to the
system.
(1 DECT per system)
1 DS30 Channel/
offset set to 0
1 DS30 Channel/
offset set to 0, 1, or 2
1 DS30 Channel/
offset set to 0, 1, 2, or 3
1 DS30 Channel/
offset set to 0, 1, or 2
1 DS30 Channel/
offset set to 0, 1, or 2
1 DS30 Channel/
offset set to 0
2 DS30 Channels/
offset set to 0
2 DS30 Channels/
offset set to 0, 1, 2, or 3
1 DS30 Channel/
offset set to 0
and equipment
connections
media bay modules
max. of
2 per DS30
per DS30
channel
max. of
2 offsets