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SPEED Serial Adaptors User guide
SPEED cables available from Perle
Page 78
Chapter 3 SPEED Cabling Information
RJ45 (8pin) to DB25 male cable
Cable diagram
Connector pinout table
Pin 1
(looking into
connector)
Pin 1(looking into plug)
RJ45 pin DB25 Pin Signal Direction Description
1 8 DCD In Data Carrier Detect
2 20 DTR Out Data Terminal Ready
3 6 DSR In Data Set Ready
4 7 GND Ground
5 2 TXD Out Transmit Data
6 3 RXD In Receive Data
7 4 RTS Out Request to send
8 5 CTS In Clear to Send
Shell Shell Chassis Chassis ground.