Intel SERVER CHASSIS SR2500 SR2500 Manuale Utente
Codici prodotto
SR2500
Cooling Subsystem
Intel® Server System SR2500AL
Revision – 1.00
Intel order number D31980-004
22
• Each fan has an associated fault LED on the mid-plane located next to the fan header.
In the event of a fan failure, the fault LED for the failing fan can be illuminated by system
management.
management.
Table 14. Non-redundant Fan Connector Pin Assingment
Pin
Signal Name
Description
1 Tachometer
B
Reserved,
unused by the non-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 pulse per revolution for the 80mm fan
Four pulses per revolution for the 60mm fan
Two pulse 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
Reserved,
unused by the non-redundant fan
9
LED Cathode
Loopback signal to pin 10
10
LED Anode
Loopback signal to pin 9
The system fans plug into headers on the mid-plane board according to the following diagram.
2
1
3
Figure 16. Non-Redundant Fan Header Assignments on Mid-plane