Moxa Technologies NPort 5200 Series User manual

Copyright © 2023 Moxa Inc.
Released on Jun 2, 2023
About Moxa
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experience, Moxa has connected more than 82 million devices worldwide and has a distribution and
service network that reaches customers in more than 80 countries. Moxa d
elivers lasting business
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communications infrastructures. Information about Moxa’s solutions is available at
www.moxa.com
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NPort's Pair Connection Mode
Moxa Technical Support Team
[e-mail]
Contents
1What is Pair Connection Mode? ................................................................................. 2
2How to Configure Pair Connection Mode.................................................................... 3
2.1 DE-211/DE-311/DE-311M .............................................................................. 3
2.2 NPort 5000 Series........................................................................................... 3
2.3 NPort Wireless Series and NPort 6000 Series ................................................. 4
3How to Test Pair Connection Mode ............................................................................ 5
4Cable Wiring.............................................................................................................. 5

Moxa Tech Note
NPort's Pair Connection Mode
Copyright © 2023 Moxa Inc.
Page 2 of 5
This Tech Note applies to the following NPort device server models:
•NPort DE-211
•NPort DE-311
•NPort DE-311M
•NPort 5100 Series
•NPort 5200 Series
•NPort 5400 Series
•NPort 5600 Series
•NPort IA5150
•NPort IA5250
•NPort W2150 Plus (wireless)
•NPort W2250 Plus (wireless)
•NPort W2150A and NPort W2250A Series (wireless)
•NPort W2150A-W4/W2250A-W4 Series (wireless)
•NPort 6000 Series
1What is Pair Connection Mode?
The Pair Connection Master and Slave modes connect two NPort device servers over an
Ethernet network for serial-to-serial communication. The two NPort device servers can
connect to each other with an Ethernet cable, connect to the same LAN, or in a more
advanced setup, communicate with each other over a WAN (i.e., through one or more
routers). A device attached to one NPort can then communicate transparently with a
device attached to the other NPort, as if a serial cable connected the two devices. Both
data and modem control signals are transmitted, although DCD signals are not. NPort’s
Pair Connection modes can overcome the distance limitations inherent in serial
communication and introduce many new possibilities for serial-based device control.

Moxa Tech Note
NPort's Pair Connection Mode
Copyright © 2023 Moxa Inc.
Page 3 of 5
2How to Configure Pair Connection Mode
Before continuing, push the “RESET” button for 10 seconds to reset your NPort to its
default settings.
2.1 DE-211/DE-311/DE-311M
1. Power ON the NPort; the Ready LED indicator will light up in green.
2. For RS-232 transmission, set the DE-311’s DIP switches to OFF-OFF-OFF, set the
DE-211’s DIP switches to OFF-OFF-OFF-OFF, or set the DE-301/331’s serial setting
to RS-232.
3. Connect the host PC and NPort to the network.
4. If necessary, reconfigure the IP address and netmask of your PC and the NPort so that
they are on the same subnet. The NPort’s default IP/netmask is
192.168.127.254/255.255.255.0. Test the connection by pinging from the PC to the
NPort.
5. Log in to the NPort’s Telnet console. E.g. # telnet <NPort’s IP>
6. Open [OP_mode] and select application [Pair Connection (Master)]. Under “more
setting” set [Remote IP Address] to the IP address of the other NPort (which will be
configured for [Pair Connection (Slave)])
7. Open [Serial port] to configure the serial parameters and terminal software to match
your serial device (e.g., 115200, N, 8, 1).
8. Remember to select [Restart] to activate all settings.
2.2 NPort 5000 Series
1. Power ON the NPort; the Ready LED indicator will light up in green.
2. Connect the host PC and NPort to the network.
3. If necessary, reconfigure the IP address and netmask of your PC and the NPort so that
they are on the same subnet. The NPort’s default IP/netmask is
192.168.127.254/255.255.255.0. Test the connection by pinging from the PC to the
NPort.
4. Log in to the NPort’s Telnet console. E.g. # telnet <NPort’s IP>
5. Open Main menu > Operating settings > Port > Operating mode [Pair Connection
Master mode], and configure the [IP address] and [port] to match up with the
other NPort’s settings.
6. Open Main menu > Serial settings > Port to configure the serial parameters for the
terminal software to match the serial device (e.g., 115200, N, 8, 1).
7. Remember to select [Save/Restart] to activate all settings.

Moxa Tech Note
NPort's Pair Connection Mode
Copyright © 2023 Moxa Inc.
Page 4 of 5
2.3 NPort Wireless Series and NPort 6000 Series
1. Power ON the NPort; the Ready LED will light up in green.
2. Connect the host PC and NPort to the network.
3. If necessary, reconfigure the IP address and netmask of your PC and the NPort so that
they are on the same subnet. The NPort’s default IP/netmask is
192.168.127.254/255.255.255.0. Test the connection by pinging from the PC to the
NPort.
4. Log in to the NPort’s Telnet console. E.g. # telnet <NPort’s IP>
5. Open [Port] > [Modes] and set Application to [Pair Connection]. Under
Description/more settings, set [Pair_Master], [IP address], and [port] to match
up with the other NPort.
6. Open [Port] > [Line] to configure the serial parameters for your terminal software
to match the serial device (e.g., 115200, N, 8, 1).
7. Remember to select [Restart] to activate all settings.
Note For wireless NPort products (both non-Plus and Plus models), you can activate either the
Ethernet port or WLAN, but not both at the same time. If you use the Ethernet port, the
WLAN will be disabled. If you want to the use WLAN, you must first unplug the Ethernet
cable and restart the NPort to activate the WLAN connection.
Note 1. The default value of [TCP port] is 4001.
2. For the NPort DE-211/311/311M device servers, only the NPort with the IP address
configured in [Destination IP addr] will be able to connect to this NPort. Leave this
column empty to allow all other NPorts to connect to this NPort.
3. The default WLAN IP address is 192.168.126.254.

Moxa Tech Note
NPort's Pair Connection Mode
Copyright © 2023 Moxa Inc.
Page 5 of 5
3How to Test Pair Connection Mode
1. Configure NPort#1 for Pair Connection Master and NPort#2 for Pair Connection Slave,
and then assign proper IP addresses to both NPorts.
2. Connect a different PC to each of the two NPorts’ serial ports, and then use terminal
software (e.g., HyperTerminal or Moxa’s PComm Terminal Emulator) to test
communication.
3. Pair Connection mode has been established if you can transmit data from the COM
port of PC#1 to the COM port of PC#2, as shown on the terminal, and also see that
PC#1 can receive data from PC#2.
4Cable Wiring