Lan1, Lan2 Link/Active Led Connectors (Cn4, Cn7); Lan1, Lan2 Speed Led Connectors (Cn5, Cn6); Com Port Rs-232 Pin Assignment (Com1, Com2); Com2 Rs-422/485 Pin Assignment - AXIOMTEK SHB101 User Manual

2.4.3

LAN1, LAN2 Link/Active LED Connectors (CN4, CN7)

Pin Signal
1 LED (+)
2 LED (-)
2.4.4

LAN1, LAN2 Speed LED Connectors (CN5, CN6)

Pin Signal
1 100, Low Active
2 + 3.3V
3 1000, Low Active
2.4.5

COM Port RS-232 Pin Assignment (COM1, COM2)

The serial interface for the board consists of COM1 port (COM1) support for RS-232,
and COM2 (COM2) for RS-232/RS422/RS485.
Pin Signal
Data Carrier Detect
1
(DCD)
3 Receive Data (RXD)
5 Transmit Data (TXD)
Data Terminal Ready
7
(DTR)
9 Ground (GND)
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
Board and Pin Assignments
SHB101 LGA775 SBC User's Manual
Pin Signal
Data Set Ready (DSR)
2
4 Request to Send (RTS)
6 Clear to Send (CTS)
Ring Indicator (RI)
8
10 Ground (GND)
Signal
RS-485
DATA-
No connector
DATA+
No connector
No connector
No connector
No connector
No connector
GND
GND
2
1
3 4
6
5
8
7
9 10
11