Nortel DMS-100 Series Maintenance Manual page 88

1-72 Maintenance overview
Simultaneous tests (for each LCM) Simultaneous LCM tests run if
test equipment is available up to the number indicated in the
BICRELAY_NUM_SIMUL_TESTS parameter. There must be LTUs or
MTUs provisioned to allow the number of simultaneous tests (LCM-level)
to run. Because of real-time considerations, the
BICRELAY_NUM_SIMUL_TEST parameter has a range of 1 through 3. A
higher number in this field allows more LCMs to be tested in a given
window.
Drawer-level test The BRT drawer-level test requires the metallic test
equipment and a single NT6X17 line card in each drawer that is tested. The
line card is used to test the BIC relay and must be in a working state. The
card must not indicate a diagnostics failure at the MAP terminal and cannot
be missing (M).
Each drawer is placed in a ManB state before the drawer-level test. Each
drawer is out of service for approximately 10s. Call processing is
suspended. When the tip and ring reversal relay test on each drawer is
complete, a single new logutil report (PM132) displays the results. This
report includes the results of each drawer test of a given LCM. If a drawer
was previously out of service or call processing is currently in progress, the
drawer is skipped and tested on later passes of the BRT.
Single-drawer test The single-drawer test is for retest purposes if a
failure occurs during the system test. This test is run from the LCM MAP
display level and is part of the TST DRWR command. The RELAY option
allows the BRT to run and not run the main DRWR test. The BRT is not run
unless the RELAY option is specified. The drawer must be ManB by the
user before this test is run. The system prompts you if the drawer is INSV,
ISTb, or SysB. The manual BRT cannot run on a drawer where the LCM
node is ManB, SysB, C-side busy (CBsy), or offline (OffL). A message
appears which indicates the request is invalid and gives the current state of
the node.
The single-drawer test displays a PM181 log with the results of the test. A
response also appears at the MAP terminal. A card list appears which
indicates the drawer that fails. If a single-drawer test cannot run, the drawer
is not set ISTb and can be returned to service to a previous state.
Office-level test The system BRT displays the results of each LCM-level
test in the form of a new logutil information report, PM132.
The PM132 displays a combined report of each drawer-level test in a given
LCM, to indicate the following:
test passes
297–8351–550 Standard 04.01 August 1999