AT&T Network Adapter 25 Installation And Maintenance Manual page 216

MAINTENANCE
ERROR MESSAGE
AND DESCRIPTION
Memory Management Error:
error that occurs while accessing
the "other than protected" RAM.
A warm start is logged after this
e r r o r .
Memory ROM Checksum Error:
Memory has failed the ROM test.
Message Corruption: (Other than
CPU/Memory)
message checksum error.
Message From Non-Translated
Port: Untranslated port CP sent
an up-link message.
No External Release On PBX
did not release
Disconnect: CO
within 4-5 minutes on DID or
ground start trunk after System 25
disconnected. Message
every 4-5 minutes until release.
N o F r e e Buffer:
Interface CP) This error resets the
C P .
No Loop Current On Incoming
Call: CP does not detect dc
current on answered incoming
call. Call will drop.
POSSIBLE SOLUTION
Bus Possible
problem persists,
replace CPU/Memory CP. A
warm start or retranslation of the
system could be a possible fix for
this problem.
If this problem persists, replace
CPU/Memory CP.
If consistent error for particular
Down-link port CP, check TDM bus drivers
on the CP. If error is associated
with many CPs, drivers on CPU
may be bad.
cables and TDM bus terminator.
Translate the CP and its port, or
remove the CP from system.
Check associated trunk (see
Figure 4-4). Error is cleared from
log when trunk release occurs
belatedly.
s e n t
(STARLAN If the reset is not successful,
reseat board. If the reseat fails,
replace CP.
Swap CP with similar CP. If
problem follows the boards,
replace CP. If problem persists,
test the trunk per Figure 4-3.
software error. If
check or
Also check 1/O