Load File Mismatch; Automatic Maintenance - Nortel DMS-100 Series Maintenance Manual

controller when the BpV count exceeds the threshold of 1 BpV per 103 bits.
The OPM also monitors the loss of frame indicator for the DS-1 links. The
OPM activates an outgoing alarm for any frame loss more than 2.5 s. The
OPM deactivates the outgoing alarm when the frame is restored to 10 s frame
loss.
The OPM can detect framing pattern loss for 2.5 s or more, or the host XPM
can detect framing pattern loss for 220 ms. When these conditions occur,
frame loss at the out-of-service limit occurs. A local carrier group alarm
(LCGA) occurs at the carrier level of the MAP display. An LCGA occurs
when the host XPM detects loss of frame. A remote carrier group alarm
(RCGA) occurs when the OPM detects the loss of frame. For information on
standard troubleshooting procedures to clear these faults, refer to the chapter
Troubleshooting chart.
DS30A links
DS30A links on the P-side of the OPM can fail. These links connect to an
RMM or ESA module. Faults on these links can affect the associated modules.

Load file mismatch

A load file mismatch fault condition occurs when a load in the LCM does not
match the load specified in table LCMINV.

Automatic maintenance

The DMS-100 Family switch of peripheral modules (PM) is reliable under
different fault conditions. Peripheral modules contain several hardware
redundancies as backup operations for module, card and link failures. Fault
conditions that do not require any manual action can occur because the
peripheral modules contain hardware redundancies.
The DMS and the OPM initiate audits or other system actions when fault
conditions occur. The DMS and the OPM perform this procedure to attempt
to find the fault and to correct the fault.
The following types of automatic maintenance appear in the sections that
follow:
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OPM audits
checksums
LCM LTC speech path diagnostics
overload resources
takeover capability
ESA capability
RMM maintenance
DMS-100 Family OPM Maintenance Manual ISN07 (TDM)/SN07 (DMS) and up
Functional overview 2-31