Intel SERVER CHASSIS SR2500 SR2500 사용자 설명서
제품 코드
SR2500
Cooling Subsystem
Intel® Server System SR2500AL
Revision – 1.00
Intel order number D31980-004
24
Table 17 Redundant Fan Connector Pin Assingment
Pin
Signal Name
Description
1 Tachometer
B
Reserved, unused by redundant fan
2
PWM
Fan speed control signal
3
12V
Power for fan
4
12V
Power for fan
5
Tachometer A
Fan RPM sensor output
Two pulses per revolution for the 80mm fan
Four pulses per revolution for the 60mm fan
Two pulses per revolution for the 80mm fan
Four pulses per revolution for the 60mm fan
6
Return
Return path to ground
7
Return
Return path to ground
8
Fan Presence
Detection if fan is installed in system
9
LED Cathode
LED in fan
10
LED Anode
Reserved, unused by the redundant fan
The system fans are hot-pluggable and do not have any cable connections. They mate directly
to the fan module. The system fan module plugs into headers on the mid-plane board
according the following diagram.
to the fan module. The system fan module plugs into headers on the mid-plane board
according the following diagram.
AF000049
4
2
3
1
6
5
Figure 18. Redudant Fan Header Assignments on Mid-plane