
Media Processing Server System Operator’s Guide
Page 34 # P0602484 Ver: 2.7
Fan Speed Monitor Panel
This panel provides information and control for overall cabinet cooling. Normal
cooling is maintained automatically, but this can be overridden in the event of an over
temperature (overtemp) condition (i.e., a state in which a preset temperature limit is
exceeded).
(Fuse)
Fan Speed Monitor Panel
Indicator/Control Function
OVER TEMP indicator Illuminates if the cabinet exceeds the predetermined safe operating temperature of 35°C
(95°F).
FAULT/MAN HS
indicator
Illuminates when a cooling system fault has been detected and the fan has been switched to
MANUAL HIGH SPEED (see next).
FAN SPEED switch Two-position switch used to set cooling fan speed for cabinet airflow.
MANUAL HIGH
SPEED
Use this setting when an overtemp condition is present and continued maximum cooling
effectiveness is required. Placing the FAN SPEED switch to this setting also causes the
FAULT/MAN HS indicator to illuminate. Caution should be exercised and service
immediately performed to alleviate the overtemp condition.
AUTO TEMP CNTRL This setting is normally used to cool the cabinet enclosure. Fan speed is automatically
adjusted for the optimum cooling capacity. The actual fan speed when in this setting is
shown by the FAN SPEED indicators.
SYSTEM OK indicator Illuminates when all predetermined cooling and temperature parameters have been met. An
OVER TEMP or FAULT/MAN HS condition causes this indicator to go out.
FAN SPEED indicators Illuminates in conjunction with the FAN SPEED AUTO TEMP CNTRL setting to indicate the
actual fan speed. Indicators are self-explanatory.
Fuse Replaceable fuse for cooling system over voltage protection. Replace with a 3 amp fast
5x20mm cartridge fuse only. Check system for cause if fuse is blown or call Avaya service
department.
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