
VPort 254 User’s Manual Getting Started
2-19
RS-232 Connection
The VPort 254 has one RS-232 (10-pin RJ45) console port, located on the top panel. Use either an
RJ45-to-DB9 or RJ45-to-DB25 cable (see the cable following wiring diagrams) to connect the
VPort 254’s console port to your PC’s COM port. You may then use a console terminal program,
such as Moxa PComm Terminal Emulator, to access the VPort 254’s console configuration utility.
RJ45 (10-pin) Console Port Pinouts
Pin Description
1 ---
2 DSR
3 ---
4 GND
5 TxD
6 RxD
7 GND
8 ---
9 DTR
10 ---
110
RJ45 (10-pin) to DB9 (F) Cable Wiring
RJ45 Plug Pin 1
DCD
DSR
RTS
GND
TxD
RxD
CTS
DTR
DCD
DTR
CTS
GND
RxD
TxD
RTS
DSR
1
2
3
4/7
5
6
8
9
1
6
7
5
3
2
8
4
RJ45 (10-pin) to DB25 (F) Cable Wiring
RJ45 Plug Pin 1
DCD
DSR
RTS
GND
TxD
RxD
CTS
DTR
DCD
DTR
CTS
GND
RxD
TxD
RTS
DSR
1
2
3
4/7
5
6
8
9
8
6
4
7
2
3
5
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