Comtrol Building Custom Cables - Manual (Page 5)

Pinouts for DB9 Connectors 5
Building Custom Cables
* All RS-232 signals are present in RS-422 mode.
Pinouts for DB 9 Connectors
Use the following table and figure for pinout information for the DB9
connectors on the Quad/Octacable.
20 DTR Not used*
21 through 24 Not used Not used
25 Not used T x D -
Table 2. DB 9 Connector Pinouts
Pin RS-232 Signal
1 CD
2 Rx D
3 Tx D
4 DTR
5 Signal ground
6 DSR
7 RTS
8 CTS
9 Not used
Table 1. DB25 Connector Pinouts (Continued)
Pin RS-232 Signal RS-422 Signal
Pin 13 Pin 1
Pin 25 Pin 14
DB25 Female
Pin 14 Pin 25
Pin 1 Pin 13
DB25 Male
Pin 1 Pin5
Pin 6 Pin 9
DB9 Male