DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-679DS1 CONV-BD
9
3. If the problem still persists, rep lace the DS1 CONV circuit pack.
o. A minor FOI receive error occurred that affects data received from the DS1
facility and transmitted to the fib er link. Replace the DS1 CONV circuit
pack.
p. A minor on-board hardware failure exists on the processor/control
hardware on the DS1 CONV circuit pack. Replac e the DS1 CONV circuit
pack.
q. For TN574 DS1 CONV boards, this error indicates that the facility masks or
the clock reference masks d o not match between the two DS1 CONV
circuit packs in the DS1 CONV Complex.
For TN1654 DS1 CONV boards, this error indicates that the facility mask s
do not match between the two DS1 CONV circuit p acks in the DS1 CONV
Complex.
Alarm should clear in 15 minutes.
1. If the problem persists, reset b oth DS1 CONV circuit packs in the
DS1 CONV Complex via the reset board command.
2. If the problem persists, rep lace this DS1 CONV circuit pack.
3. If the problem persists, rep lace the DS1 CONV circuit pack at the
other end of the DS1 CONV Complex.
r. The two TN574 DS1 CONV circuit packs in the DS1 CONV complex do not
have the same firmware vintage. The TN574 DS1 CONV with the older
vintage should be rep laced. This error does not app ly to TN1654 boards.
s. Fiber Loss of Frame Alignment (LFA) alarm occurred at the oth er end of
the DS1 CONV Complex. The DS1 CONV circuit pack at the other end of
the DS1 CONV Complex cannot frame up on the sig nal coming into the
circuit pack from the f iber. (The neighbor DS1 CONV circuit pac k detected
the LFA and relayed this information to this DS1 CONV circuit pack via the
DS1 Control Channel.) The yellow LED will flicker at a 5 Hz rate (on for 100
mS, off for 100 mS).
1. Execute the list fibers command to determine the Fiber Endpoint
that is connected to the DS1 CONV circuit p ack. Enter display
errors and follow the associated repair procedures for any
EXP-INTF , and SNI-BD errors for the Fiber Endpoints. Enter display
errors and follow the associated repair procedures for any
FIBER-LK errors for this fiber link.
2. If the problem still persists, check for excessive slips and
synchronization problems. Enter display errors and follow the
associated repair p rocedures for any SYNC, TDM-CLK, and
SNC-BD errors.
3. If the problem still persists, run the Far-end DS 1 CON V Circuit Pack
Loopback test #788 on this DS1 CONV circ uit pack via the test
board UUCSS long command. This test will indicate if the neighbor