Perle Systems Adaptors User Manual
Page 110
FAST Serial Adaptors User Guide
Distribution box and cable pinouts
Page 110
Chapter 3 Cabling information
8 port distribution box with DB25 female connectors
Push fit onto card
edge connector
Port numbers
labelled on unit
Connect peripheral cable
here via DB25 connectors
Pin
Signal
Direction
Description
1
Chassis
Chassis ground
2
TXD
Out
Transmit Data
3
RXD
In
Receive Data
4
RTS
Out
Request To Send
5
CTS
In
Clear To Send
6
DSR
In
Data Set Ready
7
GND
Ground
8
DCD
In
Data Carrier Detect
20
DTR
Out
Data Terminal Ready
22
RI
In
Ring Indicator
Pin 1 (looking into connector)