Perle Systems RIO 5500036-17 - Manual (Page 214)

RIO Remote I/O System User Guide
Cable connector pinouts
Page 214
Chapter 3 RIO Cabling information
DB25 female to DB25 male DTE for connection to DCE devices
Typical uses This type of cable is used to connect to DCE devices such as Modems.
Cable diagram
Connector pinout table
Pin 1
(looking into
connector)
Pin 1
(looking into
connector)
DB25 DB25
Pin Signal Direction Description Pin Signal Description
2 TXD Out Transmit Data 2 TXD Transmit Data
3 RXD In Receive Data 3 RXD Receive Data
4 RTS Out Ready to send 4 RTS Ready to send
5 CTS In Clear to send 5 CTS Clear to send
6 DSR In Data Set Ready 6 DSR Data Set Ready
7 GND Ground 7 GND Ground
8 DCD In Data Carrier Detect 8 DCD Data Carrier Detect
20 DTR Out Data Terminal Ready 20 DTR Data Terminal Ready