Com port rs-232 pin assignment (cn3, cn6), Com2 rs-422/485 pin assignment – Kontron PCI-761 User Manual
Page 24
9. Jumpers and Connectors
PCI 761 – User’s Guide (V1.01)
22
www.kontron.com
9.4.5. COM Port RS-232 Pin Assignment (CN3, CN6)
The serial interface for the board consists of CN3 port (COM2) support for RS-232, and CN6 (COM1) for
RS-232/RS-422/RS-485.
Pin Signal
Pin Signal
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
Disconnect(NI)
2
4
6
1
3
5
7
8
9
10
9.4.6. COM2 RS-422/485 Pin Assignment
COM1 Serial Port 10-pin (Box-header) Connector Pin Assignment list
Signal Name
Pin #
RS-422
RS-485
1 TX- DATA-
2
No connector
No connector
3 TX+ DATA+
4
No connector
No connector
5 RX+
No
connector
6
No connector
No connector
7 RX-
No
connector
8
No connector
No connector
9 GND
GND
10 NI
NI