DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1319POWER
9
8 FAIL
NOTE:
For a Global AC MCC (J58890CH) use the procedures outlined in step
3.
There is a reserve power fault. A problem exists with the battery charger or,
less likely, the batteries.
1. Replace the battery charger and the battery. The fault should disappear.
!
WARNING:
Always turn off the battery charger before replacing the batteries.
2. Rerun the test. If the test still fails, then SYSAM in a PPN or the EPN MAINT
(Maintenance) circuit pack in an EPN could be reporting this condition
incorrectly. Resolve all alarms on these MOs and rerun the test. There are
failures that can occur on the SYSAM and EPN Maintenance circuit pack
that
will not
be detected by their respective maintenance, but which will
cause many, if not all, environment tests to fail. If many environment tests
are failing, the suspect circuit pack, depending on the system
configuration, should be replaced and the test rerun.
More information continues.
8
(cont’d.
)
FAIL
(cont’d.)
3. Procedures for a Global MCC (J58890CH):
a. Look to see if any “red” LEDs are “on” on any of the rectifier modules or
the BIU (Battery Interface Unit) located in the Power Distribution Unit
(J58890CH).
b. If the BTW (Battery Temp Warning) LED on the BIU is “on” check the
batteries for a over temp condition
(a)
if temp is normal
(a)
replace the
BIU, If the test still fails replace the battery in a small battery system.
For a large battery system escalate the problem.
c. If the BNA (Battery Not Available) LED is “on” check the battery
connections including connector J20.
Table 9-513. TEST #5 Battery & Battery Charger Query Test — Continued
Error
Code
Te s t
Result Description/ Recommendation
Continued on next page
