Kontron CP-RIO3-04S - Manual (Page 25)

CP-RIO3-04S Functional Description
ID 1036-1669, Rev. 1.0 Page 2 - 5
2.1.3 COM Interfaces
The CP-RIO3-04S provides two COM ports, COM1 and COM2, for connecting RS-232
devices. COM1 is available on the front panel and is implemented as an RJ-45 connector, J2.
COM2 is available onboard and is implemented as a 10-pin connector, J3.
The following figure illustrates the RJ-45, serial port connector, J2 (COM1).
Figure 2-3: Serial Port Connector J2 (COM1)
The following table indicates the pinout of the RJ-45, serial port connector, J2 (COM1).
Table 2-3: Serial Port Connector J2 (COM1) Pinout
PIN SIGNAL DESCRIPTION I/O
1 RTS Request to send O
2 DTR Data terminal ready O
3 TXD Transmit data O
4 GND Signal ground --
5 GND Signal ground --
6 RXD Receive data I
7 DSR Data set ready I
8 CTS Clear to send I
1
8
J2
COM 1