SPEED Serial adaptors User guide
SPEED cables available from Perle
Page 84
Chapter 3 SPEED Cabling information
RJ45 (10pin) 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
22
RI
In
Ring Indicator
2
8
DCD
In
Data Carrier Detect
3
20
DTR
Out
Data Terminal Ready
4
6
DSR
In
Data Set Ready
5
7
GND
Ground
6
2
TXD
Out
Transmit Data
7
3
RXD
In
Receive Data
8
4
RTS
Out
Request To Send
9
5
CTS
In
Clear To Send
10
N/C
N/C
Not connected
Shell
Shell
Chassis
Chassis
