Fan Tray(Fmca) - Huawei SmartAX MA5600T Hardware Description

SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description

2.5.4 Fan Tray(FMCA)

A fan tray functions heat dissipation, monitoring, and fan speed adjustment, which ensures
that the device works at a stable temperature.
Appearance
Six fans are configured in the fan tray (FMCA) of the MA5603T.
Specification
Item
Dimensions (W x D x H)
Weight
Power consumption
(including FMCA board)
NOTE
Function
The functions of the fan tray are as follows:
l
l
l
Issue 24 (2018-07-30)
In the case of Access device, power consumption is generally transformed into heat consumption.
Hence, heat consumption (BTU/h) and power consumption (W) can be converted to each other in the
formula: 1 BTU/h = 0.2931 W.
Heat dissipation
The fan tray is at the left of the service subrack and blows air for heat dissipation of the
service subrack. The cool air flows to the subrack from the left of the subrack and then is
exhausted from the right of the subrack after passing the boards.
Monitoring
The fan tray is configured with a fan monitoring board. The fan monitoring board
transmits speed adjustment signals to the fan tray, collects the rotating speed signals of
the fans, and reports the rotating speed signals to the control board.
Speed adjustment
The rotating speed of the fans can be adjusted according to the detected temperature
automatically or be adjusted by software manually.
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Specification
53.0 mm x 272.5 mm x 245.7 mm
2.0 kg
l Static: 30 W
l Maximum: 72 W
2 Subrack and Chassis
120