Connectors and Jumper Blocks

Intel® Server Board SE7520JR2

 

 

 

 

24

BB_FAN_LED6_R

IN

 

 

 

 

 

The 1x3 fan header (J3K3) is used to control a system fan in the Intel Server Chassis SR1400. The pinout for this connector is found in the following table.

Table 108: 3-Pin Fan Speed Controlled Fan Header (J3K3)

Pin

Signal Name

Type

Description

1

Fan Tach

Out

FAN_TACH signal is connected to the BMC to monitor the FAN speed

 

 

 

 

2

Fan_Speed_Cntl1

Power

Power supplied through fan speed control circuitry

 

 

 

 

3

Ground

GND

GROUND is the power supply ground

 

 

 

 

7.7Misc. Headers and Connectors

7.7.1Chassis Intrusion Header

A 1x2 pin header (J1A1) is used in chassis that support a chassis intrusion switch. This header is monitored by the mBMC. The pinout definition for this header is found in the following table.

 

 

Table 109: Chassis Intrusion Header (J1A1)

 

 

 

 

Pin

Signal Name

 

Description

1

FP_Chassis_Intr

 

 

 

 

 

 

2

Ground

 

 

 

 

 

 

7.7.2Hard Drive Activity LED Header

A 1x2 pin header (J1A2) provides hard drive controller add-in cards an interface to the control panel Hard Drive Activity LED. The pinout definition for this header is found in the following table.

Table 110: Hard Drive Activity LED Header(J1A2)

Pin

Signal Name

Description

1

+3.3V

 

 

 

 

2

FP_LED_L

 

 

 

 

200

Revision 1.0

 

C78844-002