ADC Release 3.1 User Manual page 476

1152700 Issue 1 February 2001 Section 2 Operations and Maintenance
ALARM SEVERITY
MESSAGE
Out Of Information
Cell al Alert
Delineation
Threshold
Crossing
Alert
OCDThresh
oldExceede
d
Path Information
Coding al Alert
Violations
Threshold
Crossing
Alert
PCVTca
Payload Minor
Label
Mismatch
Path
PLM-P
P-bit Information
Errored al Alert
Seconds
Threshold
Crossing
Alert
PESTca
P-bit Information
Severely al Alert
Errored
Seconds
Threshold
Crossing
Alert
PSESTca
Page 2-432
© 2000, ADC Telecommunications, Inc.
Table 4-1. Alarm Identifications, continued
IMPACT DESCRIPTION
Installation Can indicate line
Error degradation.
Service T3 P-bit coding violations
Degradation threshold crossing alert.
Installation Traffic in payload does not
Error match what the payload
label in the path layer
expected.
Service T3 P-bit errored seconds
Degradation threshold crossing alert. A
one second interval in the
transmission from the far
end originating NE has had
excessive parity errors.
PES errors have exceeded
the user definable threshold
level.
Service T3 P-bit Severely Errored
Degradation Seconds (SES) threshold
crossing alert. Excessive
one second intervals in the
transmission from the far
end originating NE have
had Parity bit errors. P-Bit
SES errors have exceeded
the user definable threshold
level.
TAP-100
Page 13 of 23
SUGGESTED COURSE OF ACTION
Could be caused by a port
failure at any ATM interface.
Verify the port is online, check
configuration, look for
indications of high BER (Bit
Error Rate), increase threshold
settings if necessary, use line
loopback to troubleshoot path
through port.
Path code violations indicate a
parity mismatch in the SONET
or DSX path. Examine the
physical circuit to determine if
there are any impairments.
Check input source type and
change payload label if
needed.
Parity bits on the incoming
DS3 line. The transmitted
signal does not match the
received signal .
Parity bits on the incoming
DS3 line. The transmitted
signal does not match the
received signal at an error rate
of 1.6E-5 or worse for a period
of time less than ten seconds.
(continued)