Maintenance Objects
1534
Issue 5 October 2002
c. The CDR physical link is down due to the following causes: cable to the
CDR output device is disconnected; CDR output device is powered off, the
data extension where the CDR output device connects to has been busied
out or there is a scheduled daily interchange. The Aux Data field contains
the Channel ID of Data Channels on the TN2402/TN798 Processor circuit
pack (that is, 3 for Channel 01, 4 for Channel 02, 5 for Channel 03, 6 for
Channel 04, and 9 for EIA port). Check the connectivity of wire and cable
among wall jacket, data module, and the CDR output device. Enter status
data extension and verify that the data extension of the CDR output
device is in the in-service/idle state. If the data extension is not available,
then refer to the preceding
‘‘Procedures for Restoring the CDR Link’’
for
resolution. Issue the display system-parameters-maintenance
command to see the start time of daily maintenance. If the error occurs and
is resolved during the interval of daily maintenance, then the error can be
ignored.
d. This error indicates that the CDR output device is in an off-line state, for
example, paper jam or paper out for a printer device. The CDR link is torn
down. Check the CDR output device and act promptly to put it back to
on-line state. Enter test cdr-link primary|secondary command to set up
the CDR link.
e. Software detects an overflow of CDR records generated in the switch due
to the heavy trunk traffic and low speed CDR output device. If both primary
and secondary links are ON, the secondary link is torn down temporarily for
two minutes to speed up the output process to the primary link. No action is
necessary for this error type.
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order presented in the table below when inspecting
errors in the system. By clearing error codes associated with the Link Retry Test,
for example, you may also clear errors generated from other tests in the testing
sequence.
Order of Investigation
Short Test
Sequence
Long Test
Sequence
D/ND
1
1.
D = Destructive; ND = Nondestructive
Link Tear Down Test (#213)
X
D
Link Retry Test (#215)
X
X
ND