Fan Speed Adjustment
Set the fan speed adjustment mode to "automatic" or "manual" in the command line interface
(CLI). After the fans are installed, they work in automatic mode by default.
l Automatic mode
– Control-system-triggering: The control system automatically adjusts fan speed
according to the board temperatures for energy conservation.
– Monitoring-board-triggering: Electric switches 7 and 8 of the SW2 DIP switch on
the monitoring board are set in four different ways to achieve four speed adjustment
policies (the ETSI subrack supports only the third policy).
NOTE
The automatic mode has two variants (automatically selected by the system): control-system-
triggering and monitoring-board-triggering.
l 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.
2.1.5 ETSI Fan Tray (FCBI)
A fan tray functions heat dissipation, monitoring, and fan speed adjustment, which ensures
that the device works at a stable temperature.
Appearance
Four fans are configured in the ETSI fan tray (FCBI) of the MA5600T.
Specification
Item
Specification
Dimensions (W x D x H) 486.00 mm x 245.20 mm x 44.00 mm
Weight 2.90 kg
Power consumption
l Static: 13 W
l Maximum: 67 W
NOTE
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.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
2 Subrack and Chassis
Issue 24 (2018-07-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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