DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1834UDS1-BD (UDS1 Interface Circuit Pack)
9
If the UDS1 board detects only one of these hardware problems, then the
error will disappear when none of these faults are d etected for 10 minutes.
If the same Aux Data value is logged more than once in a 24 hour period ,
the circuit pac k should be replace d.
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 regula rly. If this error is
seen quite frequently (10 times within 30 minutes), the c ircuit pack should
be replaced.
h. Transmit FIFO Underflow Error. This error occurs when the c ircuit pack
cannot find the "end of frame" bit when transmitting a fr ame to Packet Bus.
An alarm will be raised if this error oc curs three times within 10 minutes.
Clear the alarm via the following comma nds: busyout board UUCSS,
reset board UUCSS, test board UUCSS long, release board UUCSS. If
the error recurs within 10 minutes, then replace the circuit pac k.
i. Unable to Write LAN Translation RAM Error. This error occurs when a c all
is aborted bec ause there are no available translation RAM locations for
the call connection attemp t. An alarm will be raised if this error oc curs 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 replac e
the circuit pac k.
j. CSU Module missing. The
Near-End CSU Type
field on the
add ds1
form
has been administered as
integrated
but the 120A1 CSU Module is not
physically connec ted (or is improperly c onnected) to the TN464F board
on the back of the port carrier.
If using the 120A1 CSU Module, plug (or rep lug) the CSU Module into the
TN464F circuit pack’s connec tor on the I/O connector p anel 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 into the board’s
connector, there could be a problem with the I/O c onnector panel.
k. CSU Module not expected. The 120A1 CSU Module is p hysically
connected to the TN464F board on the b ack of the port c arrier but the
Near-End CSU Type
field on the
add ds1
form has not been administered
as
integrated
.
If the 120A1 CSU Module is to be used, use the
change ds1
command to
change the
Near-End CSU Type
field to
integrated
. Otherwise, physically
remove the 120A1 CSU Module from the back of the p ort carrier.
l. DS1 configuration error. Attempting to use the 120A 1 CSU Module with a
TN464F circuit pack that is conf igured for 32-channel (2.048 Mb ps)
operation. The CSU Module only works with a DS1 board c onfigured for
24-channel (1.544 Mbps) op eration in the United States of America.