|
Standard RS-232 DTE - No DSR, No RI
|
|
Standard RS232 DCE
|
|
DB-25F
Pin #
|
RS-232
Signal
|
|
2
|
RxD
|
|
3
|
TxD
|
|
4
|
DTR
|
|
5
|
DCD
|
|
7
|
GND
|
|
8
|
RTS
|
|
20
|
CTS
|
|
|
DB-25F
Pin #
|
RS-232
Signal
|
Signal
Direction
|
|
2
|
RxD
|
input
|
|
3
|
TxD
|
output
|
|
4
|
DCD
|
input
|
|
5
|
RTS
|
output
|
|
7
|
GND
|
signal
ground
|
|
8
|
DTR
|
output
|
|
20
|
CTS
|
input
|
|
|
RJ modular connector
|
|
|
Wire
#
|
8
wire
|
6
wire
|
4
wire
|
Signal
Direction
|
|
1
|
DTR
|
|
|
output
|
|
2
|
RTS
|
RTS
|
|
output
|
|
3
|
SG
|
SG
|
SG
|
signal
ground
|
|
4
|
TxD
|
TxD
|
TxD
|
output
|
|
5
|
SG
|
SG
|
SG
|
signal
ground
|
|
6
|
RxD
|
RxD
|
RxD
|
input
|
|
7
|
CTS
|
CTS
|
|
input
|
|
8
|
DCD
|
|
|
input
|
|
|
DB-9
Male Pin #
|
RS-232
Signal
|
|
1
|
DCD
|
|
2
|
RXD
|
|
3
|
TXD
|
|
4
|
DTR
|
|
5
|
Ground
|
|
6
|
Reserved
|
|
7
|
RTS
|
|
8
|
CTS
|
|
9
|
Reserved
|
|
|
Standard RS-232 DTE
|
|
1) The IOB08DB9V1/V5/V6 has the following
pinouts when applied with Intellicon-Flex or Dflex products.
|
DB-9
Male
Pin
#
|
RS-232
|
RS-485
|
RS-423
|
Current
Loop
|
|
1
|
DCD
|
RxD+
|
RxD+
|
RxD-
|
|
2
|
RxD
|
TxD+
|
TxD
Ref.
|
TxD-
|
|
3
|
TxD
|
TxD-
|
TxD-
|
TxD
Source
|
|
4
|
DTR
|
RxD-
|
RxD-
|
TxD
Return
|
|
5
|
Signal
Ground
|
Signal
Reference
|
Signal
Reference
|
Signal
Ground
|
|
6
|
Reserved
|
CTS-
|
CTS-
|
RxD
Return
|
|
7
|
RTS
|
RTS-
|
RTS-
|
TxD-
|
|
8
|
CTS
|
RTS+
|
RTS
Ref.
|
RxD+
|
|
9
|
Reserved
|
CTS+
|
CTS+
|
RxD
Source
|
2) The
IOB08DB9V1/V5/V6 has the following pinouts when applied with the
BlueHeat PCI/8 RS-232.
|
DB-9
Male
Pin
#
|
RS-232
|
|
1
|
DCD
|
|
2
|
RXD
|
|
3
|
TXD
|
|
4
|
DTR
|
|
5
|
Signal
Ground
|
|
6
|
DSR
|
|
7
|
RTS
|
|
8
|
CTS
|
|
9
|
RI
|
|
|
1) The IOB08DB9V2/V3/V4 has the following
pinouts when applied with Intellicon-Flex or Dflex products.
|
DB-9
Pin #
|
RS-232
|
RS-485
|
RS-423
|
C-Loop
|
|
1
|
DCD
|
RxD+
|
RxD+
|
RxD-
|
|
2
|
RxD
|
TxD+
|
TxD
Ref.
|
TxD-
|
|
3
|
TxD
|
TxD-
|
TxD-
|
TxD
Source
|
|
4
|
DTR
|
RxD-
|
RxD-
|
TxD
Return
|
|
5
|
Signal
Ground
|
Signal
Reference
|
Signal
Reference
|
Signal
Ground
|
|
6
|
Reserved
|
CTS-
|
CTS-
|
RxD
Return
|
|
7
|
RTS
|
RTS-
|
RTS-
|
TxD-
|
|
8
|
|