DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-386CARR-POW (Carrier Power Supply)
9
FAIL
(cont’d.)
3. Unplug both port carrier power supplies, and wait approximately
1-minute to allow the power supplies to cool down. Plug in the power
supplies. If either power supply is operating properly (the status LEDs
show green), then replace the defective power supply(s). See “Port
Carrier Power Supply Replacement Procedures” above.
4. If the replaced port carrier power supply(s) still do not operate
properly, then a circuit pack or a defective telephone connected to a
circuit pack in the affected carrier could be causing an electrical load
which is preventing the power supply from operating properly. Unseat
all the circuit packs in the carrier, and reissue the recycle carrier
command.
a. If the recycle passes, then the port carrier power supplies are
healthy, and the problem is with one of the circuit packs. Reinsert
the circuit packs one at a time. If the status LED shows red after
reinserting a circuit pack, then replace the defective circuit pack. If
the status LED still shows red, then remove the amphenol
connector on the back of the slot containing this circuit pack and
reissue the recycle carrier command. If the status LED shows
green, then the problem is with one of the telephones or the wiring
to one of the telephones on this slot.
b. If either port carrier power supply still shows a red status LED,
then check for bent pins and cable placement in the affected
carrier. 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.
PASS AC POWERED SYSTEMS
Both OLSs in the tested carrier were found to be healthy by the SYSAM in
a PPN or the EPN Maintenance circuit pack in an EPN. If the status LEDs
on both OLSs are not showing green, then the SYSAM or the EPN MAINT
circuit pack may have incorrectly reported the state of the OLSs. Resolve
any alarms on these MOs.
DC POWERED SYSTEMS
Both port carrier power supplies in the tested carrier were found to be
healthy by the SYSAM in a PPN or the EPN Maintenance circuit pack in an
EPN. If the status LEDs on both port carrier power supplies are not
showing green, then the SYSAM or EPN MAINT circuit pack may have
incorrectly reported the state of the port carrier power supplies. Resolve
any alarms on these MOs.
Table 9-161. TEST #127 OLS Query Test — Continued
Error
Code
Te st
Result Description/ Recommendation
Continued on next page
