User guide

IOLAN+, IOLAN+ Rack & IOLAN+ 102/104 User guide
Standard modem cables
Page 209
Standard modem cables
IOLAN+ DB25 DTE to Modem DB25 DCE
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)
Male
Male
DB25 (IOLAN+) DB25 (MODEM)
Pin Signal Direction Description Pin Signal Description
1 Chassis Chassis ground 1 Chassis Chassis ground
2 TXD Out Transmit Data 2 TXD Transmit Data
3 RXD In Receive Data 3 RXD Receive Data
4 RTS Out Request To Send 4 RTS Request 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