Rs422/rs232 connector pin outs – DNF Controls Analyst, RS422/RS232 Tester User Manual
Page 34
K.
RS422/RS232 Connector Pin Outs
IN PORT, RS232 Connector
DCE configuration, 9 pin DB9F female connector
Pin #
Function
Signal
Direction
Pin
#
Function Signal
Direction
1
DCD
Out
6
DSR
Out
2
Txd
Out
7
RTS
In
3
Rxd
In
8
CTS
Out
4
DTR
In
9
RI
Out
5
Ground
OUT PORT,
RS232 Connector
DTE configuration, 9 pin DB9F female connector
Pin #
Function
Signal
Direction
Pin
#
Function Signal
Direction
1
DCD
In
6
DSR
In
2
Rxd
In
7
RTS
Out
3
Txd
Out
8
CTS
In
4
DTR
Out
9
RI
In
5
Ground
IN PORT, RS422 Connector
Device configuration,
9 pin DB9 female connector
Pin
#
Function
Signal
Direction
Pin
#
Function Signal
Direction
1 Frame
Ground
6
Transmit
Common
2
Transmit A (-)
Out
7
Transmit B (+)
Out
3
Receive B (+)
In
8
Receive A (-)
In
4 Receive
Common
9 Frame
Ground
5 Spare
OUT PORT, RS422 Connector
Controller configuration,
9 pin DB9 female connector
Pin
#
Function
Signal
Direction
Pin
#
Function Signal
Direction
1 Frame
Ground
6
Transmit
Common
2
Receive A (-)
In
7
Receive B (+)
In
3
Transmit B (+)
Out
8
Transmit A (-)
Out
4 Receive
Common
9 Frame
Ground
5 Spare
Page
30
of 31
The Analyst RS422/RS232 Tester