Comtrol C53 User Manual
Page 8
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RS-232 Cable Wiring
8
RS-232 Cable Wiring
Type 1: To connect the RS-232 side of a C52 or C53 to a DTE (Data Terminal Equipment or “your PC”) or DCE (Data Communications
Equipment or “remote device”). Check the precise DTE/DCE pinouts. For an example, see the following DTE/DCE pinout
examples.
C52/C53 to DTE Cable
Signal Pin
Pin
Signal
DCD
1
8
DCD
DTR
2
20
DSR
CTS
3
5
RTS
RxD
5
3
TxD
TxD
6
2
RxD
GND
7
7
GND
RTS
8
4
CTS
DSR
9
6
DTR
RJ45
DB-25
Male
C52/C53 to DTE Cable
Signal
Pin
Pin
Signal
DCD
1
1
DCD
DTR
2
4
DSR
CTS
3
8
RTS
RxD
5
2
TxD
TxD
6
3
RxD
GND
7
5
GND
RTS
8
7
CTS
DSR
9
6
DTR
DB-9
Male
RJ45
C52/C53 to DCE Cable
Signal
Pin
Pin
Signal
DCD
1
8
DCD
DTR
2
6
DSR
CTS
3
4
RTS
RxD
5
2
TxD
TxD
6
3
FxD
GND
7
7
GND
RTS
8
5
CTS
DSR
9
20
DTR
RJ45
DB-25
Female
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