Nortel DMS-100 Series Maintenance Manual page 92

1-76 Maintenance overview
The PM600 log contains the start time of each step the REx test executes,
the unit that the REx test step affects, and the failure reason. The REx test
steps included in the log after the failed step are recovery actions the REX
test initiates as a result of the failure. The unit number is included if the
REX test action is for the unit and not an action that affects the node. The
units include the BSY unit, RTS unit, TST unit, and synchronization. The
nodes include SWACT, BSY the two units. The log additional data consists
of a card list and a mnemonic of the failed diagnostic.
The QUERYPM, QUERYPM FLT, TST REX QUERY, and TST REXCOV
Query commands contain information about the last REX test. Manually
and system-initiated REX tests store and display a new date, time, and status
in the REX test maintenance record. The state can be passed or failed. The
Passed status means the REX test completes without errors. The Failed
status means the REX test cannot complete because of an error. This
information is available through the QUERY PM and TST REX QUERY
commands. If the REX test fails, perform a manual REX test, or an
automated REX test to return the XPM to service from ISTb.
A REX test maintenance record is stored for each XPM that contains the
following information:
297–8351–550 Standard 04.01 August 1999
REX test scheduler, if the XPM is in the system
date, time, and result (passes or fails) of the last REX test
failure reason, diagnostics failures, and a list of defective cards if
applicable, if the last REX test fails
date and time of previous failed REX test
date and time of first passed REX test following previous failure