Com1, Com2 Port Connectors - AXIOMTEK SBC81206 Series User Manual
Intel core 2 duo/ pentiumd/ pentium 4/ celeron processor all-in-one picmg 1.0 full-size single board computer
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Also See for SBC81206 Series:
- User manual (80 pages) ,
- Quick installation manual (2 pages)
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SBC81206 PICMG1.0 SBC User's Manual
2.4.1
COM1, COM2 Port Connectors
The serial interface for the board consists of COM1 port (COM1) support for RS-232 and
COM2 (COM2) for RS-232/RS422/RS485.
Please refer to the RS-232 pin assignment as listed below:
Pin
Signal
1
Data Carrier Detect (DCD)
3
Receive Data (RXD)
5
Transmit Data (TXD)
7
Data Terminal Ready (DTR) 8
9
Ground (GND)
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
10
Pin
Signal
2
Data Set Ready (DSR)
4
Request to Send (RTS)
6
Clear to Send (CTS)
Ring Indicator (RI)
10
Ground (GND)
Signal Name
RS-485
DATA-
No connector
DATA+
No connector
No connector
No connector
No connector
No connector
GND
GND
Board and Pin Assignments
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