Maintenance Overview; Functional Overview; Hardware Description - Nortel DMS-100 Series Maintenance Manual

Maintenance overview

The Remote Line Concentrating Module (RLCM) is a remote peripheral that
provides extended geographic coverage for the Digital Multiplex
System-100 (DMS-100) switch. The RLCM operates at a maximum of
160.9 km (100 mi) from the host office.
The RLCM contains hardware and software maintenance components that
perform routine audits and identify failures in the following:

Functional overview

The RLCM provides an interface for two to six DS-1 links from
Note: When interfacing an RCC or RCC2 in the remote-off-remote
configuration, use software package NTX381AA.
This chapter contains a hardware and software summary of the RLCM
configuration.

Hardware description

This section can help the maintenance engineer understand how the different
hardware components of the RLCM interact for maintenance
troubleshooting. The following paragraphs describe the hardware required
for the Remote Line Concentrating Module, NTX146AA, feature package.
RLCM
DS-1 links that connect the RLCM to the host controller
subscriber lines
a line group controller (LGC)
a line trunk controller (LTC)
a remote cluster controller (RCC)
a remote cluster controller2 (RCC2)
a maximum of 640 subscriber lines that connect locally
DMS-100 Family RLCM Maintenance Manual XPM12 and up
1-1