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MERLIN LEGEND Communications System Release 7.0
Pocket Reference
555-670-116
Issue 1
April 1999
122
Reference Documents
Maintenance Error Codes
—Continued
Technical Addendum
Error
Code Description Action
840B NO LOOP CURRENT:
Communication problems
between module and CO; no loop
current. If error occurs four times
consecutively and if automatic
maintenance-busy is enabled and
maintenance-busy limit is less
than 50%, trunk is busied-out
automatically.
Replace module with similar
module and test. If problem is
resolved, replace bad module. If
problem persists, reinstall old
module and test trunk.
840C STUCK RINGING:
Communication problems
between module and CO; no loop
current. If error occurs four times
consecutively and if automatic
maintenance-busy is enabled and
maintenance-busy limit is less
than 50%, trunk is busied-out
automatically.
Replace module with similar
module and test. If problem is
resolved, replace bad module. If
problem persists, reinstall old
module and test trunk.
840D INCORRECT FIRMWARE
STATE:
If error occurs four times
consecutively and if automatic
maintenance-busy is enabled and
maintenance-busy limit is less
than 50%, trunk is busied-out
automatically.
Turn power off for at least one
second, and then turn it on.
Repeat system programming
procedure. If problem persists,
replace module.
840E UPLINK MESSAGE ERROR:
Communication problems
between processor and modules.
Module received unrecognized
message from processor.
Turn processor off and then on.
Repeat system programming
procedure. If problem persists,
replace module.
840F LOST IDLE MESSAGE
ERROR:
Loop start trunk lost an idle
message during glare timing.
System has taken corrective
action. If problem persists,
contact NSAC Tier III.
8C01 SLOTS NOT EQUAL:
Module that occupies indicated
slot does not match slot
information contained in PC or
PCMCIA card backup file.
Check slot descriptions in
backup file against actual
system modules that occupy
slots. After mismatch is
corrected, restore.
9801 MCARD WRITE ERROR:
Write to memory card is
unsuccessful or too slow.
Reset card and try again. If
problem persists, replace card
and try again. If problem
continues, replace processor
module.
9802 MCARD ERASE ERROR:
Erasure of memory card is
unsuccessful or too slow.
Reset card and try again. If
problem persists, replace card
and try again. If problem
continues, replace processor
module.