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SPEED Serial Adaptors User guide
SPEED cables available from Perle
Page 82
Chapter 3 SPEED Cabling Information
RJ45 (10pin) to DB25 female cable
Cable diagram
Connector pinout table
Pin 1
(looking into
connector)
Pin 1 (looking into plug)
RJ45 pin DB25 pin Signal Direction Description
1 22 RI In Ring Indicator
2 8 DCD In Data Carrier Detect
3 6 DTR Out Data Terminal Ready
4 20 DSR In Data Set Ready
5 7 GND Ground
6 3 TXD Out Transmit Data
7 2 RXD In Receive Data
8 5 RTS Out Request To Send
9 4 CTS In Clear To Send
10 N/C N/C Not connected
Shell Shell Chassis Chassis