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What items are included in the package with the MOXA NPORT 5650-8-M-SC?

The MOXA NPORT 5650-8-M-SC package should contain the following items:

• 1 NPort 5600 Series serial device server

• Power cord (AC models only)

• 1 DIN-rail/wall-mounting kit: WK-45-01

• NPort 5600 Quick Installation Guide

Optional Accessories:

• CBL-RJ45M9-150: 8-pin RJ45 to DB9 male cable, 150 cm

• CBL-RJ45F9-150: 8-pin RJ45 to DB9 female cable, 150 cm

• CBL-RJ45M25-150: 8-pin RJ45 to DB25 male cable, 150 cm

• CBL-RJ45F25-150: 8-pin RJ45 to DB25 female cable, 150 cm


What do the front panel LED indicators on the MOXA NPORT 5650-8-M-SC signify?

The front panel of the MOXA NPORT 5650-8-M-SC has several LED indicators, as described in the following table:

Name Color Function
Ready Off Power is off, or power error condition exists.
Red Steady on: Power is on and the NPort is booting up.
Blinking: Indicates an IP conflict, or DHCP or BOOTP server did not respond properly.
Green Steady on: Power is on and the NPort is functioning normally.
Blinking: The NPort has been located by NPort Administrator’s Location function.
1 to 16 Orange Serial port is receiving data.
Green Serial port is transmitting data.
Off No data is being transmitted or received through the serial port.

How can I operate the LCM panel on my MOXA NPORT 5650-8-M-SC?

The MOXA NPORT 5650-8-M-SC has four buttons on the front panel to operate the LCM panel. Going from left to right, the button functions are as follows:

Button Action
MENU Activates the main menu, or returns to a lower level.
^ Scrolls up through a list of items shown on the LCM panel’s second line.
v Scrolls down through a list of items shown on the LCM panel’s second line.
SEL Selects the option listed on the LCM panel’s second line.

How do I use the Reset button on my MOXA NPORT 5650-8-M-SC?

To load factory defaults on your MOXA NPORT 5650-8-M-SC, use a pointed object to press the Reset button continuously for 5 seconds. Release the button after the Ready LED stops blinking.


What do the link indicators on the rear panel of the MOXA NPORT 5650-8-M-SC fiber model signify?

The rear panel of the MOXA NPORT 5650-8-M-SC fiber model has a link indicator with the following functions:

LED Name LED Color LED Function
Link Off Fiber disconnected.
Green Fiber connected, data not transmitting.
Blinking Fiber connected, data is transmitting.

How do I perform the hardware installation for my MOXA NPORT 5650-8-M-SC?

STEP 1: After removing the MOXA NPORT 5650-8-M-SC from the box, the first thing you should do is attach the power adapter.

STEP 2: Connecting the Power.

AC: Connect the NPort 5600’s 100-240 VAC power cord to the AC connector. The “Ready” LED will show a solid red color until the system is ready, at which time it will change to a green color.

DC: For DC models, connect the NPort 5600 VDC’s power cord to the DC connector. For example, with the NPort 5610-8-48V, loosen the screws on the V+ and V- terminals. Connect the power cord’s 48 VDC or -48 VDC wire to the V+ terminal, and the power cord’s DC Power Ground wire to the V- terminal, then tighten the screws. The “Ready” LED will show a solid red color until the system is ready, at which time it will change to a green color.

Grounding the NPort 5600 VDC: Grounding and wire routing help limit the effects of noise due to electromagnetic interference (EMI). Run the ground connection from the ground screw to the grounding surface prior to connecting devices. The Shielded Ground (SG) contact is the second contact from the right of the 5-pin power terminal block connector on the rear panel of some models. Connect the SG wire to the Earth ground.

STEP 3: Connect the MOXA NPORT 5650-8-M-SC to a network. Use a standard straight-through Ethernet cable to connect to a hub or switch. When setting up or testing, you might find it convenient to connect directly to your computer’s Ethernet port using a cross-over Ethernet cable.

STEP 4: Connect the MOXA NPORT 5650-8-M-SC’s serial port to a serial device.

Placement Options: You can place the MOXA NPORT 5650-8-M-SC on a desktop or other horizontal surface.


What are the default network settings for the MOXA NPORT 5650-8-M-SC, and how can I find a forgotten IP address?

The default IP address configuration for the MOXA NPORT 5650-8-M-SC is:

LAN: Static; IP = 192.168.127.254; netmask = 255.255.255.0

If you have forgotten the NPort’s IP address, use the Device Search Utility (DSU) from your PC to locate the NPort. After searching the LAN for NPort units, the DSU will display the IP address of each unit.

You may log in with the password moxa to change any settings to meet your network topology (e.g., IP address) or serial device (e.g., serial parameters).


What are the serial port pin assignments for the MOXA NPORT 5650-8-M-SC?

The serial port pinouts for the MOXA NPORT 5650-8-M-SC are as follows:

Pin RS-232 RS-422/RS-485-4W RS-485-2W
1 DSR – –
2 RTS TxD+ –
3 GND GND GND
4 TxD TxD- –
5 RxD RxD+ Data+
6 DCD RxD- Data-
7 CTS – –
8 DTR – –

How should I wire the serial cables for an RS-232 connection on the MOXA NPORT 5650-8-M-SC?

The following table shows the cable wiring between the NPort 5650’s RJ45 port and various serial device connectors for an RS-232 connection.

NPort 5650 (RJ45) DB9-M DB9-F DB-25-M DB-25-F Serial Device
DSR 1 6 4 6 20 DTR
RTS 2 7 8 4 5 CTS
GND 3 5 5 7 7 GND
TxD 4 3 2 2 3 RxD
RxD 5 2 3 3 2 TxD
DCD 6 1 1 8 8 DCD
CTS 7 8 7 5 4 RTS
DTR 8 4 6 20 6 DSR

How should I wire the serial cables for a 2-wire RS-485 connection on the MOXA NPORT 5650-8-M-SC?

The following table shows the cable wiring between the NPort 5650’s RJ45 port and various serial device connectors for a 2-wire RS-485 connection.

NPort 5650 (RJ45) DB9-M DB9-F DB-25-M DB-25-F Serial Device
GND 3 5 5 7 7 GND
Data+ 5 2 3 3 2 Data+
Data- 6 1 1 8 8 Data-

How should I wire the serial cables for a 4-wire RS-485 / RS-422 connection on the MOXA NPORT 5650-8-M-SC?

The following table shows the cable wiring between the NPort 5650’s RJ45 port and various serial device connectors for a 4-wire RS-485 or RS-422 connection.

NPort 5650 (RJ45) DB9-M DB9-F DB-25-M DB-25-F Serial Device
TxD+ 2 7 8 4 5 RxD+
GND 3 5 5 7 7 GND
TxD- 4 3 2 2 3 RxD-
RxD+ 5 2 3 3 2 TxD+
RxD- 6 1 1 8 8 TxD-

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