Nortel DMS-100 Series Maintenance Manual page 90

1-74 Maintenance overview
Interactions This feature uses the test access bus, the metallic test
equipment (MTE), and a single NT6X17 card in each drawer to complete
testing. If you run ALTs at the same time, a BRT can delay the two tests. A
BRT can delay the two tests because the tests compete for the same test
equipment.
If REx runs on a given LCM, the BRT does not run on that LCM. The
LCM remains in the current state. The system outputs a PM181 log which
indicates the BRT does not run because of the REx in progress.
Limits
The following limits apply to this feature:
297–8351–550 Standard 04.01 August 1999
— The BRT is reset as if you issue the RESET option of the
BICRELAY command.
— The system retains the ON/OFF settings of the BICRELAY
command.
— The system retains the state of the SUPPRESS/ALLOW commands.
— The system clears the ISTb reasons.
The system test manually busies the logical drawer before the RELAY
test runs. If lines are present in a call processing busy state, the drawer is
skipped for this test cycle.
Before a manual BRT runs on a single drawer, the drawer must be
ManB.
If a minimum of one NT6X17 line card is not entered in each logical
drawer, the drawer is not tested.
If the line card selected for testing is removed during the test, the drawer
fails.
If a drawer fails to RTS when the system BRT is complete, the drawer is
placed SysB. This event occurs so the system audit can attempt to return
the drawer to service.
This test does not run on an LCM at the same time as an LCM audit and
a REX test.
The BRTST_START_TIME and BRTST_STOP_TIME fields of the
BICRELAY_XLCM_TEST_SCHEDULE office parameter cannot be
entered with the same value. These fields must have a minimum 10 min
time span between each other.