Com Interface; Com Connectors J2A (Com1) And J3A (Com2) Pinout; Serial Port Connectors J2 (Com1) And J3 (Com2) Pinout; Com Connectors J2A (Com1) And J3A (Com2) - Kontron CP305 User Manual

CP-RIO3-04 Rear I/O
B.5.4

COM Interface

The CP-RIO3-04 Rear I/O module provides two identical COM ports for connecting RS-232 de-
vices to the CP-RIO3-04 Rear I/O module.
On the 8HP version, the onboard 10-pin COM connectors J2 and J3 are routed to the 9-pin D-
Sub COM connectors J2a and J3a located on the front panel.
On the 4HP version, the COM signals are available only on the onboard 10-pin COM
connectors J2 and J3 connectors.
The following figure and table provide pinout information for the 9-pin D-Sub COM connectors
J2a and J3a located on the front panel.
Figure B-7: COM Connectors
J2a (COM1) and J3a (COM2)
5
J2'
COM 1
1
5
J3'
COM 2
1
The following figure and table provide pinout information for the onboard COM connectors J2
and J3.
Figure B-8: Serial Port Connectors
J2 (COM1) and J3 (COM2)
10
J2
COM 1
2
10
J3
COM 2
2
Page B - 10
Table B-5: COM Connectors J2a (COM1) and
PIN
9
1
2
3
6
4
5
6
9
7
8
9
6
Table B-6: Serial Port Connectors
PIN
9
1
2
3
1
4
5
6
9
7
8
9
1
10
J3a (COM2) Pinout
SIGNAL DESCRIPTION
DCD Data carrier detect
RXD Receive data
TXD Transmit data
DTR Data terminal ready
GND Signal ground
DSR Data send request
RTS Request to send
CTS Clear to send
RI Ring indicator
J2 (COM1) and J3 (COM2) Pinout
SIGNAL DESCRIPTION
DCD Data carrier detect
DSR Data send request
RXD Receive data
RTS Request to send
TXD Transmit data
CTS Clear to send
DTR Data terminal ready
RI Ring indicator
GND Signal ground
NC Not connected
ID 1035-7168, Rev. 1.0
CP305
I/O
I
I
O
O
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I
O
I
I
I/O
I
I
I
O
O
I
O
I
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