Filter
Top Products
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-296CARR-POW (Carrier Port Power Unit) for DC-Powered Systems
10
FAIL
(cont’d.)
3. Unplug both port carrier power units, and wait about
one-minute to allow the port carrier power units to
cool down. Plug in the port carrier power units. If
either port carrier power unit is operating properly
(that is, the status LEDs show green), then replace
the defective port carrier power unit(s). See "Port
Carrier Power Unit Replacement Procedures" in this
section.
4. If the replaced port carrier power unit(s) still does
(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 port carrier power unit
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
units 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, replace the defective
circuit pack. If the status LED still shows red,
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, the problem is with one of the
telephones or the wiring to one of the telephones
on this slot. If the status LED still shows red,
escalate the problem.
b. If either port carrier power unit still shows a red
status LED, check for bent pins and cable
placement in the affected carrier. There are
failures that can occur on the Maintenance/Tape
Processor, Duplication Interface, and EPN
Maintenance circuit pack that are not detected
by the respective maintenance, but that 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. If no other
problems can be found, escalate the problem.
Table 10-85. TEST #127 Power Unit Query Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page