IBASE Technology ASB200-918 Series, User Manual, Page: 22 / 75

14 ASB200-918 User Manual
2.1.6 Pinout for COM Ports, DC Power & Digital I/O Connectors

RS232/422/485 COM Port
Pin Signal Pin Signal
1 DCD, Data carrier detect 6 DSR, Data set ready
2 RXD, Receive data 7 RTS, Request to send
3 TXD, Transmit data 8 CTS, Clear to send
4 DTR, Data terminal ready 9 RI, Ring indicator
5 Ground

DC Power Input Connector (terminal block)
Pin Signal Pin Signal
1 Ground 3 +12V ~ +24V
2 Chassis Ground

Digital I/O Connector (terminal block)
Pin Signal Pin Signal
1 Ground 6 DI3
2 DO3 7 DI2
3 DO2 8 DI1
4 DO1 9 DI0
5 DO0 10 +5V