Nortel DMS-100 Series Maintenance Manual page 142

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2-66 Functional overview

Figure 17 SREX system dependencies

SREX database

The converter voltage and ring test sections of LCM_REX_TEST require wait

states and unique test resources. These limits cause delays in SREX main task

execution that are not acceptable. The LCMCOV_REX_TEST implements

these tests separately from the LCM_REX_TEST. The

LCMCOV_REX_TEST runs at a lower priority. 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 LCMCOV_REX_TEST to execute at the

same time. The entry of the PARALLEL execution field for

LCMCOV_REX_TEST allows a maximum of one LCMCOV_REX_TEST

execution. Enter the PARALLEL field in table REXSCHED.

297-8361-550 Standard 04.02 December 2004

SREX controller

Table OFCVAR

NODEREXCONTROL

Table REXSCHED

LCM_REX_TEST

Troubleshooting