Cabinetized Integrated Services Module - Nortel SL-100 Product Manual

particulate filtration. The fans normally run at low speed to minimize noise
levels; however, if a condition of thermal stress occurs, the fans switch to
high speed.
Power Distribution Panel
The PDP provides power for up to 11 cabinets (including the MCAM3),
depending on the configuration. The circuit breaker module comprises two
rows of 20 center trip circuit breakers, of which, half are connected to the
A-feed and half to the B-feed. Each row has 16 30-amp circuit breakers
and 4 10-amp circuit breakers. An LED assembly is provided to indicate if
any breakers fail.
External power supply
The MCAM3 cabinet requires one -48 V A-feed, one -48 V B-feed, one 48 V
ABS feed and one ground feed from the power plant. The external battery
supply is connected through filtered connections to the PDP.

Cabinetized Integrated Services Module

The CISM cabinet houses shelves for Integrated Services Modules (ISMs),
in addition to performing the functions of the Trunk Module (TM) and the
Maintenance Trunk Module (MTM).
Figure 60
CISM components
Copyright © 2006, Nortel Networks
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Maintenance and administration cabinet modules 129
Communication Server 2100
Meridian SL-100 Product Guide
555-4001-103 20.01 Standard
SE09 20 October 2006
Nortel Networks Confidential