RIO Remote I/O System User Guide
Cable connector pinouts
Page 212
Chapter 3 RIO Cabling information
RJ45 male to DB25 male DTE for connection to DCE devices
Typical uses This type of cable is u sed to connect to DCE devices such as Modems.
Cable diagram
Connector pinout table
Pin 1
(looking into
connector)
Pin 1
(looking into
connector)
RJ45 DB25
Pin Signal Direction Description Pin Signal Description
1DCD In Data Carrier Detect 8DCD Data Carrier Detect
2DTR Out Data Terminal Ready 20 DTR Data Terminal Ready
3DSR In Data Set Ready 6DS R Data Set Ready
4S/GND Signal ground 7S/GND Signal ground
5TXD Out Transm it Data 2TXD Tra nsmit Da ta
6RXD In Receive Data 3RXD Receive Data
7RTS Out Request To Send 4RTS Request To Send
8CTS In Clear To Send 5CTS Clear To Send
Shield Chassis ground