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, replace the DS1 CONV circuit pack.
o. A minor FOI receive error occurred that affects data received from the DS1
facility and transmitted to the fiber 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. Replace the DS1 CONV circuit
pack.
q. For TN574 DS1 CONV boards, this error indicates that the facility masks or
the clock reference masks do 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 masks
do not match between the two DS1 CONV circuit packs in the DS1 CONV
Complex.
Alarm should clear in 15 minutes.
1. If the problem persists, reset both DS1 CONV circuit packs in the
DS1 CONV Complex via the
reset board
command.
2. If the problem persists, replace this DS1 CONV circuit pack.
3. If the problem persists, replace 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 replaced. This error does not apply to TN1654 boards.
s. Fiber Loss of Frame Alignment (LFA) alarm occurred at the other 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 signal coming into the
circuit pack from the fiber. (The neighbor DS1 CONV circuit pack 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 pack. 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 procedures for any SYNC, TDM-CLK, and
SNC-BD errors.
3. If the problem still persists, run the Far-end DS1 CONV Circuit Pack
Loopback test #788 on this DS1 CONV circuit pack via the test
board UUCSS long command. This test will indicate if the neighbor
