DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-369CABINET (Cabinet Sensors)
9
2 FAIL The SYAM or the EPN Maintenance circuit pack has reported a
temperature problem due to the S1 sensor detecting a temperature of
at least 650C (1490F). The entire cabinet is in danger of power-down if
the temperature reaches 700C (1580F).
1. If any of the fans are not running, there should be a FAIL with Err or
Code 1 present. Follow the procedures for that Error Code, noting
the differences for variable and nonvariable-speed fan
assemblies.
2. If the fans are running, check the temperature at the top of the
cabinet.
a. If the temperature is at least 650C (1490F), the ambient room
temperature is too high and the fans cannot cool the system.
Unless the room temperature is reduced, the system will shut
down soon.
3. If the temperature at the top of the cabinet is less than 650C
(1490F), either the S1 sensor or the SYSAM or EPN Maintenance
circuit packs are incorrectly reporting the prob lem.
a. Resolve any errors aga inst SYSAM or MAINT, then rerun the
test.
b. If there are errors, replace the S1 sensor and retest. If the test
fails, escalate.
3 FAIL Fan failures and temperature alarms have been reported.
1. Resolve the fan failure (Error Code 1). This should also resolv e the
temperature alarm. (With nonvariable-speed fan assemblies, fan
failures correspond to air flow problems.)
PASS Temperature measurements and fan performance are satisfactory.
Table 9-158. TEST #122 Cabinet Temperature Query T es t — Continued
Error
Code Test
Result Description/ Recommendation
Continued on next page