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4. Hardware Setup
• 4-2 Rear Cooling Fan Control Board
The rear fans are controlled and monitored by a control board. The fan con-
trol board requires power input from the power supply which allows the
individual fans to obtain their power when connected to the control board.
The ASMA software can monitor the fan status from the fan control board.
The fan control board's cable connections are shown below.
Fan
Reserved
Connector
Fan Status Signal
Connector
Rear Cooling Fan Control Board Settings
The rear fan control board has DIP switches to allow controlling the control
board status and the number of fans.
DIP Switch SET1
ON (momentarily) Reset Control Board
OFF
SET2 SET3
ON
ON
ON
ON
OFF
OFF
OFF
OFF
AP2300 Hardware Reference Guide
Fan Control Board Setting
Normal (Default)
SET4
Number of Fans
ON
ON
1
ON
OFF
2 (Default)
OFF
ON
3
OFF
OFF
4
ON
ON
5
ON
OFF
6
OFF
ON
7
OFF
OFF
8
Fan Power
Connectors
Power Input
Connector
Fan Control
Settings
Reserved
Fan Connectors
19
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