AT&T System 25 User Manual
Page 209
MAINTENANCE
ERROR MESSAGE
AND DESCRIPTION
P O S S I B L E S O L U T I O N
AC Power Failure: An indication
Check plug at wall receptacle. If
that ac power has been lost (for
this error occurs more often than
example, plug removed from a
the building power outages, check
wall receptacle, building power
connection to wall.
down for more than a quarter of a
second, etc.). If power is lost from
the first cabinet, the ETU will be
triggered.
Alarm Log Overflow: The error
Correct indicated errors, and then
logs are full and no more errors
remove entries from the Transient
can be written to them. This error
Error Log to free-up space.
is kept, however, to alert you of
the fact.
A r c h
Angel
Insane
Restart:
Make sure ZTN85 or ZTN131 (R3)
Clocks may be missing from the
circuit pack (CP) is installed.
TDM bus.
Check the inter-cabinet cables,
bus terminator and back plane for
bent pins. Reseat a port CP that
is in the same cabinet as ZTN85
or ZTN131 (R3). If it does not
power up,
replace
ZTN85 or
ZTN131 (R3). If it does but
p r o b l e m
persists,
replace
CPU/Memory CP.
Arch Angel Interrupt Restart:
Possible software problem. If this
System
restarted
due to
error occurs frequently, check the
CPU/Memory problem.
CPU/Memory CP.
Bad Oat Device:
(STARLAN
Recoverable; no action required.
Interface CP) This error is an
isolated transient condition.
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