Kontron CP-RIO3-05 - Manual (Page 28)

Functional Description CP-RIO3-05
Page 2 - 6 ID 1044-0711, Rev. 1.0
P R E L I M I N A R Y
2.1.4 COM Interfaces
The CP-RIO3-05 module provides two COM ports, COM1 and COM2, on the front panel for
connecting RS-232/RS-422 devices. The COM ports are realized as 9-pin D-Sub connectors,
J2a and J3a, and connected via flat cables to the 10-pin onboard connectors, J2 and J3.
COM1 is a full-featured RS-232 interface. COM2 is an RS-422 interface switchable to limited
RS-232 via the uEFI BIOS of the CP3002-RC/CP3002-RA.
COM1 corresponds to COMA on the CP3002-RA/-CP3002-RC. COM2 corresponds to COMB
on the CP3002-RA/-CP3002-RC.
The following figure and tables provide pinout information for the 9-pin D-Sub COM connectors
J2a and J3a located on the front panel.
Figure 2-4: D-Sub COM Connectors J2a (COM1) and J3a (COM2)
Table 2-4: D-Sub COM Connector J2a (COM1) Pinout
PIN SIGNAL DESCRIPTION I/O
1 DCD Data carrier detect I
2 RXD Receive data I
3 TXD Transmit data O
4 DTR Data terminal ready O
5 GND Signal ground --
6 DSR Data send request I
7 RTS Request to send O
8 CTS Clear to send I
9 RI Ring indicator I
J2a COM1
J3a COM2
6
9 5
1
6
9 5
1