Nortel DMS 100 Series Maintenance Manual page 313

SWACT controller
This feature provides short term diagnostic performance data to the SWACT
controller. A set of query procedures appear for applications that require this
information. The SWACT controller determines if a SWACT is required.
Short term data for a specified unit means diagnostic and audit failure counts
measured from the last time a unit correctly gained activity.
Operating company personnel analysis
The XPM Diagnostic History feature provides data on the failure history of
diagnostics. This data indicates the type of the number of failures that occur
and which cards are defective. MAP commands display data for a specified
XPM or for all XPMs this feature supports. MAP commands display two sets
of data. MAP commands display short term failure counts, and long term
failure counts.
Short term failure counts
gained activity. This data can help operating company personnel plan
maintenance activities for outage analysis. If an outage occurs, include the
XPM Diagnostic History data for that peripheral with other associated data.
Long term failure counts
Manual action or Product Computing-Module Load (PCL) application resets
the long term failure counts. Long term failure counts must last last for the life
of the PCL. This data channels back to the design groups to provide data for
additional diagnostic system improvements.
Description of diagnostics
Because different PMs contain different hardware, different diagnostics run on
each type of PM. Approximately 75 diagnostics are available for use on
XPMs. Only a subset of the 75 diagnostics runs on a specified PM. This
feature captures failures for the following types of diagnostics:
• in-service
• out of service
• single diagnostic
• facility audit
• other audits
Each diagnostic indicates zero or more cards. The XPM determines the
number of cards. The CC can generate card lists for display at the MAP
terminal or in logs. Any card indicated by a XPM diagnostic or audit, and
reported to CC, appears in a list of card failures.
Note: The XPM Diagnostic History feature records only those cards that an
XPM indicates. This feature does not record cards that CC generates.
DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up
RSC-M trouble isolation and correction 8-25
accumulate from the last time a unit correctly
accumulate from the last time long term.