Iec Fan Tray (Fcbh) - Huawei SmartAX MA5600T Hardware Description

SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
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2.3.5 IEC Fan Tray (FCBH)

A fan tray functions heat dissipation, monitoring, and fan speed adjustment, which ensures
that the device works at a stable temperature.
Appearance
Ten fans are configured in the IEC fan tray (FCBH) of the MA5600T.
Issue 24 (2018-07-30)
Table 2-21 Fan speed adjustment strategies
No. Description
1 l At the temperature less than 25°C, the fans rotate at 50% of the full
speed.
l At the temperature from 25°C to 35°C, the fans rotate at 50% to 100%
of the full speed.
l At the temperature greater than 35°C, the fans rotate at full speed.
2 l At the temperature less than 55°C, the fans rotate at 50% of the full
speed.
l At the temperature from 55°C to 65°C, the fans rotate at 50% to 100%
of the full speed.
l At the temperature greater than 65°C, the fans rotate at full speed.
3 l At the temperature less than 30°C, the fans rotate at 50% of the full
speed.
l At the temperature from 30°C to 50°C, the fans rotate at 50% to 100%
of the full speed.
l At the temperature greater than 50°C, the fans rotate at full speed.
4 l At the temperature less than 15°C, the fans stop rotating.
l At the temperature from 15°C to 45°C, the fans rotate at 50% of the
full speed.
l At the temperature from 45°C to 65°C, the fans rotate at 50% to 100%
of the full speed.
l At the temperature greater than 65°C, the fans rotate at full speed.
NOTE
When the automatic mode is used, the device automatically switches between the fan-control
mode and control-board-control mode.
Manual mode
Commands are executed to adjust fan speed. The levels range from 0 to 6, level 0 being
the lowest speed and level 6 being the highest speed.
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