Installation guide

STEP 1: Insert the negative
(ground)/positive DI wires into the
┴/I1 terminals.
STEP 2: To keep the DI wires from
pulling loose, use a small flathead
screwdriver to tighten the
connection.
STEP 3: Insert the terminal block
connector into the receptor on the
VPort’s top panel.
Communication Connections
The VPort 251 has an RS-232 console port and a 10/100BaseT(X) Ethernet
port, which both use RJ45 connectors.
RS-232 Connection
The RS-232 console port is on the top panel and uses a 10-pin RJ45 connector.
Use an RJ45-to-DB9 or RJ45-to-DB25 cable to connect your PC COM port to
the console port. Cable wiring diagrams are shown below. You may then use a
console terminal program, such as Moxa's PComm Terminal Emulator, to open
the VPort’s console configuration utility.
RJ45 (10-pin) Console Port Pin Assignment
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
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