Kontron CP-RIO3-05 - Manual (Page 30)

Functional Description CP-RIO3-05
Page 2 - 8 ID 1044-0711, Rev. 1.0
P R E L I M I N A R Y
Table 2-6: Onboard Serial Port Connector J2 (COM1) Pinout
PIN SIGNAL DESCRIPTION I/O
1 DCD Data carrier detect I
2 DSR Data send request I
3 RXD Receive data I
4 RTS Request to send O
5 TXD Transmit data O
6 CTS Clear to send I
7 DTR Data terminal ready O
8 RI Ring indicator I
9 GND Signal ground --
10 NC Not connected --
Table 2-7: Onboard Serial Port Connector J3 (COM2) Pinout
RS-232
PIN
RS-422
I/O DESCRIPTION SIGNAL SIGNAL DESCRIPTION I/O
-- Not connected NC 1 NC Not connected --
-- Not connected NC 2 NC Not connected --
I Receive data RXD 3 RXD+ Receive data + I
O Request to send RTS 4 TXD+ Transmit data + O
O Transmit data TXD 5 TXD- Transmit data - O
I Clear to send CTS 6 RXD- Receive data - I
-- Not connected NC 7 NC Not connected --
-- Not connected NC 8 NC Not connected --
-- Signal ground GND 9 GND Signal ground --
-- Not connected NC 10 NC Not connected --
Note ...
The RS-232 signals DCD, DTR, DSR, and RI are not supported on the J3
connector.