9.3 DIP Switch
This topic provides the meanings and settings of the DIP switches on the fan tray. The fan tray
is configured with the fan monitoring board that provides two sets of DIP switches.
The H511FCBB monitoring board of the fan tray provides two sets of DIP switches: SW101
and SW201. Figure 9-2 shows the layout of SW101 and SW201.
Figure 9-2 Layout of SW101 and SW201 (default settings)
H511FCBB
ON OFF
SW101
1
2
3
4
5
6
7
8
SW201
1234
ON
OFF
SW101
Table 9-2 describes the default settings of DIP switches of SW101.
Table 9-2 Default settings of DIP switches of SW101
DIP
Switch
Meaning Default Setting
SW101-1 Sets the address of subnode based on data configurations.
l ON: The address bit is 0.
l OFF: The address bit is 1.
The default value of the address bit is 0.
ON
SW101-2 ON
SW101-3 ON
SW101-4 ON The fan tray communicates with the control
board at the baud rate of 19200 bit/s.
ON
OFF The fan tray communicates with the control
board at the baud rate of 9600 bit/s.
SW101-5 Sets the number of fans. By default, there are six fans. ON
SW101-6 ON
SW101-7 Sets the fan speed adjustment mode. By default, the fan
speed is adjusted according to the temperature at the air
exhaust vent.
OFF
SW101-8 ON
Table 9-3, Table 9-4, and Table 9-5 describe the settings of SW101.
UA5000 Universal Access Unit
Environment Monitoring 9 Fan Tray Monitoring Solution
Issue 01 (2012-08-17) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
153
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