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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1445UDS1-BD (UDS1 Interface Circuit Pack)
10
r. Far CSU Loopback deactivation error. This error occurs when the TN464F
circuit pack could not deactivate a far-end CSU loopback on
power-up/reset or upon software request.
Attempt to clear the alarm via the following commands:
busyout board
PCSS
,
test ds1-loop PCSS end-loopback/span-test
,
release board PCSS
.
If the attempt to deactivate the Far CSU loopback continues to fail, then
escalate the problem.
s. 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 will be isolated
from the Packet Bus and the board will be alarmed. To clear the alarm and
restore the board to the Packet Bus, use the following commands:
busyout board PCSS, reset board PCSS, test board PCSS long,
release board PCSS.
If the problem persists, and there are no PKT-BUS alarms or port alarms,
then replace the circuit pack.
t. The hyperactive circuit pack is out-of-service and may exhibit one or more
of the following symptoms:
1. The common circuit pack level tests such as Test #50 and/or Test
#52 are aborting with error code 2000.
2. The tests run on the ports of this circuit pack are returning with a
NO-BOARD.
3. A busyout/release of the circuit pack has no affect on test results.
4. A list configuration command shows that the circuit pack and
ports are properly installed.
The circuit pack is isolated from the system and all trunks or ports on this
circuit pack are placed into the out-of-service state. The system will try to
restore the circuit pack within 20-30 minutes. When no faults are detected
for 20-30 minutes, the UDS1 Interface circuit pack is restored to normal
operation. All trunks or ports of the UDS1 Interface circuit pack are then
returned to the in-service state. If the board is not restored to normal
operation, or the error recurs after the board was restored to normal
operation, escalate the problem.
u. LAN Critical Error. A critical failure has been detected in the Packet Bus
interface of the circuit pack. This failure may be due to an on-board fault or
a Packet Bus fault. If the Packet Bus is alarmed, refer to the PKT-BUS
Maintenance documentation for recommended repair procedures.