User's Manual

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-1179UDS1-BD (UDS1 Interface Circuit Pack)
3
If the UDS1 board detects only one of these hardware problems, then the
error will disappear when none of these faults are detected for 10 minutes.
If the same Aux Data value is logged more than once in a 24 hour period,
the circuit pack should be replaced.
g. LAN External RAM Error. This error occurs when there is a hardware fault
in the PPE external RAM. The RAM is used for message buffering to and
from the Packet Bus. This error should not occur regularly. If this error is
seen quite frequently (10 times within 30 minutes), the circuit pack should
be replaced.
h. Transmit FIFO Underflow Error. This error occurs when the circuit pack
cannot find the "end of frame" bit when transmitting a frame to Packet Bus.
An alarm will be raised if this error occurs three times within 10 minutes.
Clear the alarm via the following commands:
busyout board UUCSS
,
reset board UUCSS
,
test board UUCSS long
,
release board UUCSS
. If
the error recurs within 10 minutes, then replace the circuit pack.
i. Unable to Write LAN Translation RAM Error. This error occurs when a call
is aborted because there are no available translation RAM locations for
the call connection attempt. An alarm will be raised if this error occurs two
times within 10 minutes. Clear the alarm via the following commands:
busyout board UUCSS
,
reset board UUCSS
,
test board UUCSS long
,
release board UUCSS
. If the error recurs within 10 minutes, then replace
the circuit pack.
j. CSU Module/T1 Sync Splitter missing or E1 Synchronization Splitter
(E1SS) missing.
CSU Module/T1 Sync Splitter missing: The
Near-End CSU Type
field on
the
add ds1
form has been administered as
integrated
but the 120A1
CSU Module or the 401A T1 Sync Spliltter is not physically connected (or
is improperly connected) to the TN464F board on the back of the port
carrier.
If using the 120A1 CSU Module or the 401A T1 Sync Spliltter, plug (or
replug) the CSU Module/T1 Sync Splitter into the TN464F circuit pack’s
connector on the I/O connector panel on back of the carrier. Otherwise,
change the
Near-End CSU Type
field using the
change ds1
form to
other
.
If this error remains after plugging the CSU Module/T1 Sync Splitter into
the board’s connector, there could be a problem with the I/O connector
panel.
E1 Synchronization Splitter missing: The
E1 Sync-Splitter?
field on
the
add ds1
form has been administered as
y,
but the 402A or 403A E1
Synchronization Splitter is not physically connected (or is improperly
connected) to the TN464F board on the back of the port carrier.
If using the 402A or 403A E1 Synchronization Splitter, plug (or replug) the
E1SS into the TN464F circuit pack’s connector on the I/O connector panel
on back of the carrier. Otherwise, change the
E1 Sync-Splitter?
field
using the
change ds1
form to
n
.