Nortel DMS-100 Series Maintenance Manual page 412

9-48 Trouble isolation and correction
Operating company personnel analysis
Feature AF5006 provides data on the failure history of diagnostics. This
data is in the form of the number of failures that occur and the cards that are
at fault. The
this feature supports. Failure counts are available through the use of
commands; short-term failure counts and long term.
Short term failure counts
Short-term failure counts accumulate from the last time a unit gained
activity. The data can help operating company personnel to guide
maintenance activities and support groups for outage analysis. If an outage
occurs, the XPM diagnostic history data for that peripheral must be included
with other important data.
Long term failure counts
Long-term failure counts accumulate from the last time long term failure
counts are reset. Manual action or batch change supplement (BCS)
application reset these counts. Long term failure counts must last for the life
of the BCS. This data must return to the design groups to provide data for
additional diagnostic system improvements.
The function described in this feature is implemented on SuperNode and
Bell Northern Research (BNR) Reduced Instruction Set Computing (BRISC)
platforms. The NT–40 platforms only support the diagnostics and
associated cards required for the SWACT controller. The NT-40 data store
requirements cause this limit. For the NT-40 platform the diagnostic results
and suspect cards recorded is smaller than SuperNode or BRISC platforms.
Description of diagnostics
Different diagnostics are run on each type of PM because different PMs
have different hardware. Approximately 75 diagnostics can test XPMs. A
subset of the 75 diagnostics is run on a PM. This feature captures failures
for the following types of diagnostics:
Each diagnostic implicates zero or more cards that the XPM determines. In
some events, the CM generates card lists at the MAP terminal or in logs. A
list of card failures includes cards an XPM diagnostic or audit implicates.
297-8231-550 Standard 09.01 August 1998
commands display data for an XPM or for all XPMs that
MAP
in service
out of service
single diagnostic
facility audit
other audits
MAP