Com2 Rs-422/485 Pin Assignment; Cpu Fan Connector (Cn32); System Fan Connectors (Cn33, Cn34) - AXIOMTEK SHB102 User Manual

2.4.6

COM2 RS-422/485 Pin Assignment

COM2 Serial Port 10-pin (Box-header) Connector Pin Assignment list
Pin
RS-422
1 TX-
2 No connector
3 TX+
4 No connector
5 RX+
6 No connector
7 RX-
8 No connector
9 GND
10 GND
2.4.7

CPU Fan Connector (CN32)

A CPU fan is always needed for cooling CPU heat. The CPU fan connector CN32
provides power to the CPU fan.
Pin Signal
1 Ground
2 +12V
3 Rotation Detection
4 Speed Control
2.4.8

System Fan Connectors (CN33, CN34)

You can connect the system cooling fan cable to CN33/CN34 for system cooling fan
power.
Pin Signal
1 GND
2 +12V
3 Rotation Detection
Board and Pin Assignments
SHB102 LGA775 SBC User's Manual
Signal
RS-485
DATA-
No connector
DATA+
No connector
No connector
No connector
No connector
No connector
GND
GND
13