Huawei CloudEngine 7800 Series Hardware Description page 163

CloudEngine 7800&6800&5800 Series Switches
Hardware Description
Figure 4-13 Appearance of a FAN-040A-B fan module
Figure 4-14 Appearance of a FAN-040A-F fan module
Function
A FAN-040A fan module consists of a fan tray, two fans, and a fan control unit. FAN-040A-B
and FAN-040A-F fan modules use different airflow designs but have the same functions.
4-14
Table 4-14 Functions of a FAN-040A fan module
Function
Automatic fan speed adjustment
Hot swap
Heat dissipation
Panel
Figure 4-15
Issue 16 (2015-08-26)
F A N - 0 4
F A N - 0 4
describes the functions of them.
and Figure 4-16
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
S T A T U S
0 A - B
S T A T U S
0 A - F
Description
After the fan module communicates normally
with the switch, the switch controls the speed
of fans based on temperature of the chassis.
Supported
l FAN-040A-B: back-to-front airflow
l FAN-040A-F: front-to-back airflow
show the panels of the FAN-040A series fan modules.
4 Fan Module
Table
153