AXIOMTEK SHB102 Series, User Manual

Page: 18 / 114

SHB102
LGA775 SBC User’s Manual
12 Board and Pin Assignments
2.4.3 LAN1 LED Connector (CN20)
Pin Signal
1 LED (+)
2 LED (-)
3 100, Low Active
4 + 3.3V
5 1000, Low Active
2.4.4 LAN2 LED Connector (CN8)
Pin Signal
1 LED (+)
2 LED (-)
3 100, Low Active
4 + 3.3V
5 1000, Low Active
2.4.5 COM Port RS-232 Pin Assignment (CN5, CN9)
The serial interface for the board consists of CN5 port (COM1) support for RS-232, and
CN9 (COM2) for RS-232/RS422/RS485.
Pin Signal Pin Signal
2
4
6
1
3
5
7
8
9
10
1
Data Carrier Detect
(DCD)
2
Data Set Ready (DSR)
3 Receive Data (RXD) 4 Request to Send (RTS)
5 Transmit Data (TXD) 6 Clear to Send (CTS)
7
Data Terminal Ready
(DTR)
8
Ring Indicator (RI)
9 Ground (GND) 10 Ground (GND)