User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-236CABINET (Cabinet Sensors)
10
1FAIL
(cont’d.)
4. If the fans are not at high speed, measure the
cabinet temperature at the air intake and the air
exhaust at the top of the cabinet.
a. If the 15
0
C/50
0
C criteria is met, there is a
problem with either the AHD1 circuit pack or the
fans that is preventing the fans from operating at
high speed. Replace the AHD1 circuit pack
and/or the fans. If this succeeds in getting the
fans to run at high speed, wait five minutes to
give the cabinet time to cool down and, rerun the
test. If the problem persists, go to step 5.
b. If the 15
0
C/50
0
C criteria is not met, the
PR-MAINT (Maintenance/Tape Processor),
DUPINT (Duplication Interface) circuit pack, or
the EPN MAINT (Maintenance) circuit pack is
incorrectly reporting this condition. Look for and
resolve all errors on these maintenance objects
first, then rerun the test. If the test still fails,
escalate the problem.
5. If the fans are running at the high speed, check the
items on list that follows. Any on of the items could
be restricting or redirecting the flow of air within the
cabinet.
a. Check both filters. If a filter is dirty or clogged it
should be cleaned or replaced. The filters can
either be washed with soap and water or
vacuumed.
b. Make sure there is nothing (other than circuit
packs) in the carrier slots that could be restricting
the air flow.
c. Make sure there are no missing (blank) circuit
pack or carrier faceplates. Install and/or replace
them as necessary.
d. Make sure the cabinet door is properly closed.
The door must be closed for the fans to be able to
properly cool the cabinet. Wait five minutes to
give the fans a chance to cool the cabinet. Rerun
the test. If the tests still fails, proceed to Step 6.
Table 10-71. TEST #122 Cabinet Temperature Query Test [Non-Variable
Speed Fans] — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page