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UDS1-BD (UDS1 Interface Circuit Pack)
Issue 1 June 2005 2395
q. Error Type 1313: CPE Loop-Back Jack deactivation error. This error occurs when the
UDS1 circuit pack could not deactivate a CPE Loop-Back Jack on power-up/reset or upon
software request.
Try to clear the alarm using busyout board location, test ds1-loop location
end-loopback/span-test, and release board location. If the attempt to
deactivate the CPE Loop-Back Jack continues to fail, other steps must be taken to
deactivate the loopback.
r. Error Type 1314: far CSU Loopback deactivation error. This error occurs when the UDS1
circuit pack could not deactivate a far-end CSU loop back on power-up/reset or upon
software request.
Try to clear the alarm using busyout board location, test ds1-loop location
end-loopback/span-test, and release board location. If the attempt to
deactivate the Far CSU loop back continues to fail, escalate the problem.
s. Error Types 1400, 1401: echo cancellation errors are logged when:
● Error 1400: echo canceller function failed. The Echo Canceller Function test, which is
executed by firmware, failed.
● Error 1401: echo canceller memory failed. The Echo Canceller Memory test, which is
executed by firmware, failed.
Echo Cancellation is no longer being supplied by the board. Clear the alarm using the
following commands: busyout board location, test board location long, and
release board location. If Test #1420 (Echo Canceler test) fails, replace the circuit
pack.
t. Error Type 1537: LAN Bus Timeout Error. This error occurs when the circuit pack transmits
too many bytes on the LAN bus for a single frame. This condition may be caused by an
on-board fault or by faulty data received on one of the circuit pack’s external ports. If any of
the ports on this circuit pack are alarmed, refer to the repair procedures for those
Maintenance Objects.
If the error occurs three times within 10 minutes, the board is isolated from the Packet bus
and the board is alarmed. To clear the alarm and restore the board to the Packet bus, use
busyout board location, reset board location, test board location
long, and release board location.
If the problem persists, and there are no PKT-BUS alarms or port alarms, then replace the
circuit pack.
u. Error Type 1538: the hyperactive circuit pack is out-of-service and may exhibit one or more
of the following symptoms:
● The common circuit pack level tests such as Test #50 and/or Test #52 abort with Error
Code 2000.
● The tests run on the ports of this circuit pack return a NO-BOARD result.
● A busyout/release of the circuit pack has no effect on test results.
● A list configuration command shows that the circuit pack and ports are properly
installed.