System Fan Connector (Cn25); Smbus Connector (Cn26); Hw Fail Led (Cn27); Jumpers - Advantech PCA-6781 User Manual

B.1.24System FAN connector (CN25)
Table B.21: System FAN connector (CN25)
Pin
1
3
B.1.25SMBUS connector (CN26)
Table B.22: SMBUS connector (CN26)
Pin
1
3
B.1.26HW Fail LED (CN27)
Table B.23: HW Fail LED (CN27)
Pin
1
B.2

Jumpers

B.2.1

LVDS Voltage Choose (JP1)

Table B.24: LVDS Voltage Choose (JP1)
Pin
1-2
B.2.2

Clear CMOS (J1)

Table B.25: CLEAR CMOS (J1)
Pin
1-2
B.2.3

232/422/485 SEL (J2)

Table B.26: 232/422/485 SEL (J2)
Pin
1-2
5-6
PCA-6781 User Manual
Signal
FAN_PWM
FAN-SPD
Signal
+5 V
SMB_DAT
Signal
HWM_INT#
Signal
+5V
Signal
Normal
Signal
RS232 *
RS485
52
Pin Signal
+12 V
2
Pin Signal
2 +SMB_CLK
GND
4
Pin Signal
GND
2
Pin Signal
2-3 +3.3V
Pin Signal
2-3 Clear CMOS
Pin Signal
2-3 RS422