Nortel DMS-100 Series Maintenance Manual page 95

Remote line concentrating module

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Table of Contents

SREX system dependencies

SREX database

The converter voltage and ring test parts of LCM_REX_TEST require wait

states and different test resources. These states and test resources cause

delays that are not acceptable in SREX main task execution. The

LCMCOV_REX_TEST that runs at a lower priority implements these tests

separately from the LCM_REX_TEST. The LCMCOV_REX_TEST

requires logical test unit (LTU) connections in the maintenance line card.

An LCM unit can only access the single LTU when the other unit is out of

service. This resource limit does not allow the execution of several

LCMCOV_REX_TESTs at the same time. The entry of data in the

PARALLEL execution field for LCMCOV_REX_TEST in table

REXSCHED allows a maximum of one.

SREX controller

Table OFCVAR

NODEREXCONTROL

DMS-100 Family RLCM Maintenance Manual XPM12 and up

Maintenance overview 1-79

Table REXSCHED

LCM_REX_TEST

Troubleshooting