Signaling For Rlcm; Rlcm Signaling Links - Nortel DMS-100 Series Maintenance Manual

Signaling for RLCM

Signaling for RLCM
This section describes the signaling protocols that the Remote Line
Concentrating Module (RLCM) uses to communicate with the DMS-100
switch and provide subscriber services. The following sections discuss
RLCM signaling and the types of subscriber services the signaling provides.

RLCM signaling links

The DS-1 interface cards (NT6X50AA) are in the host interface equipment
shelf. The interface cards are the signaling interfaces between the RLCM
and the host XMS-based peripheral module (XPM).
The XPM can be any of the following:
Each DS-1 interface card can accept a maximum of two DS-1 links from the
host XPM. The RLCM and the host XPM exchange information over the
DS-1 links through dedicated message channels. This signaling information
allows the RLCM and the host XPM to perform tasks.
The RLCM and the host XPM perform the following tasks:
The RLCM depends on the DMS-100 switch (host office). The host office
handles all intersystem signaling and operator signaling. Intersystem
signaling occurs between the host and the other systems. Operator signaling
occurs between the host and the subscriber.
line group controller (LGC)
line trunk controller (LTC)
remote cluster controller (RCC) of a Remote Switching Center (RSC)
communicate the states of subscriber lines
execute call processing
set up test configurations
pass test results
DMS-100 Family RLCM Maintenance Manual XPM12 and up
4-1