8 port octopus cable with db25 female connectors – Perle Systems Adaptors User Manual
Page 111
FAST Serial Adaptors User Guide
Distribution box and cable pinouts
Page 111
Chapter 3 Cabling information
8 port octopus cable with DB25 female connectors
Push fit onto card
edge connector
Port numbers
labelled on DB25
flying lead
Connect peripheral cable
here via DB25 flying lead
DB25 flying leads
connected to card edge
connector.
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
Pin 1 (looking into connector)