Pinouts for db9 connectors, Pinouts for, 9 connectors – Comtrol Building Custom Cables User Manual
Page 5
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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
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