User Guide
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1538UDS1-BD (UDS1 Interface Circuit Pack)
10
busyout board PCSS, reset board PCSS, test board PCSS long,
release board PCSS. If the error recurs within 10 minutes, then replace
the circuit pack.
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 connected (or is improperly connected) to the TN464F board
on the back of the port carrier.
If using the 120A1 CSU Module, plug (or replug) the CSU Module 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 into the board’s
connector, there could be a problem with the I/O connector panel.
k. CSU Module not expected. The 120A1 CSU Module is physically
connected to the TN464F board on the back of the port carrier 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 port carrier.
l. DS1 configuration error. Attempting to use the 120A1 CSU Module with a
TN464F circuit pack that is configured for 32-channel (2.048 Mbps)
operation. The CSU Module only works with a DS1 board configured for
24-channel (1.544 Mbps) operation in the United States of America.
m. DS1 circuit pack suffix incorrect for CSU Module. The
Near-End CSU Type
field on the
add ds1
form has been administered as
integrated
but the
DS1 circuit pack is not a TN464F or later suffix UDS1 board.
If the 120A1 CSU Module is to be used, remove the circuit pack and
replace it with a TN464F or later suffix board. Otherwise, use the
change
ds1
command to change the
Near-End CSU Type
field to
other
.
n. BLB failure. This error occurs when the DS1 Board Loopback (BLB)
demand test fails. Repeat the test using the following commands:
busyout board PCSS
,
test ds1-loop PCSS ds1/csu-loopback-tests
,
release board PCSS
. If the BLB test continues to fail, then the TN464F
circuit pack needs to be replaced.
o. ELB failure. This error occurs when the Integrated CSU (I-CSU) Module
Equipment Loopback (ELB) test fails. This test is executed by the I-CSU
during I-CSU power-up/reset (i.e.- TN464F board physically inserted and
120A1 CSU Module already installed) or when the 120A1 CSU Module is
plugged on to an already initialized DS1 board. The ELB test is also
executed as part of the command
test ds1-loop PCSS
ds1/csu-loopback-tests
.