Cp-rio3-05 functional description – Kontron CP-RIO3-05 User Manual
Page 29
CP-RIO3-05
Functional Description
ID 1044-0711, Rev. 1.0
Page 2 - 7
P R E L I M I N A R Y
The following figure and tables provide pinout information for the onboard COM connectors J2
and J3.
Figure 2-5: Onboard Serial Port Connectors J2 (COM1) and J3 (COM2)
Table 2-5: D-Sub COM Connector J3a (COM2) Pinout
RS-232
PIN
RS-422
I/O
DESCRIPTION
SIGNAL
SIGNAL
DESCRIPTION
I/O
--
Not connected
NC
1
NC
Not connected
--
I
Receive data
RXD
2
RXD+
Receive data +
I
O
Transmit data
TXD
3
TXD-
Transmit data -
O
--
Not connected
NC
4
NC
Not connected
--
--
Signal ground
GND
5
GND
Signal ground
--
--
Not connected
NC
6
NC
Not connected
--
O
Request to send
RTS
7
TXD+
Transmit data +
O
I
Clear to send
CTS
8
RXD-
Receive data -
I
--
Not connected
NC
9
NC
Not connected
--
Note ...
The RS-232 signals DCD, DTR, DSR, and RI are not supported on the J3
connector.
J3
COM2
J2
COM1
1
9
10
2
1
9
10
2