
5-4
C104P User’s Manual
Type 3:
To connect C104P to a DTE with 3-pin wiring.
If the “
Hardware flow control
” feature is set to “
ON
”, you must loop
back (or short) the RTS with CTS and DSR with DTR, DCD on MOXA
site, indicated in dash-lines of the following diagrams. If the “
Hardware
flow control
” feature is set to “
OFF
”, you could just leave RTS, CTS,
DSR, DTR, DCD open, ignoring the connection indicated in dash-lines.
PC COM2 port, Serial Printer,
Terminal, or any DTE Device
Opt4C
C104P
DTE Device
DB25 Male
DB25 Male
TxD
2
2
TxD
RxD
3
3
RxD
GND
7
7
GND
RTS
4
4
RTS
CTS
5
5
CTS
DSR
6
6
DTR
DTR
20
20
DSR
DCD
8
8
DCD
PC COM2 port, Serial Printer,
Terminal, or any DTE Device
Opt4D
C104P
DTE Device
DB9 Male
DB25 Male
RxD
2
2
TxD
TxD
3
3
RxD
GND
5
7
GND
RTS
7
4
RTS
CTS
8
5
CTS
DTR
4
6
DTR
DSR
6
20
DSR
DCD
1
8
DCD
Содержание C104P
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