How to Set up an NEC Video Wall Using Daisy Chain

by Safir Läckgren

Optimize your Video Wall performance with NEC's simple, but advanced setup and calibration tools. Save time and enhance control with Daisy chaining and Auto Tile Matrix and fine-tune the matching of your displays now and in the future with PC-less auto-calibrating and NEC's Display Wall Calibrator.




Video walls are a set of display panels or professional displays that are tiled together in order to create one unified screen. Video walls can be used for a variety of use cases including retail, corporate offices, receptions, or even on a bigger scale such as display screens in malls, control rooms, command centers, data centers, airports, or even in public venues to enhance experiences and engage audience members. 

Video walls provide amazing and eye-catching content through its arrangement and ability to customize tile layouts that a single display couldn’t achieve otherwise. This has several benefits, for starters, video walls can display stretched content across multiple displays to create a unique pattern. They can also create greater pixel density and display content in a higher definition. 

This article will go through a step by step tutorial on how to create your very own video wall using NEC’s displays, specifically through Daisy Chaining. NEC’s unique displays are equipped with integrated video matrix processers or “splitters” that allow content to be stretched across all displays from using single video input. To learn more about how to set up your first Daisy Chain display, follow along NEC’s detailed step by step guide below. 



What Equipment Do You Need?

1. NEC OPS Compliant Display

UN2A Series 
UN492S Series 

2. NEC OPS Module 

3. Phillips Head Screwdriver

4. Cables
HDMI cords
LAN cables 
Display port cables

How to create an NEC video wall using a "Daisy Chaining":

Step 1: Connect all of your displays using the proper cabling method

1.1. Purchase four NEC displays and mount the displays on the wall (however we recommend connecting your displays first).


1.2. Select one display to be a 'control display' and Insert the OPS module into this display. This display will be responsible for forwarding video signals to the other displays.



1.3. Next, locate the display ports on each display. Starting at the first display (control display), connect the DisplayPort Out connection on the first display to the DisplayPort In connection on the second display. If you are connecting numerous displays, follow the same sequence. 


1.4. Locate the HDMI port in your OPS module which should be placed in your first display (control display). Connect the HDMI Out connection of the first display to the HDMI In connection on the second display. If you are connecting numerous displays, follow the same sequence. 



1.5. Now, connect the LAN cable Out connection of the first display to the LAN  In connection on the second display. Keep following the same procedure if you are connecting numerous displays e.g. connect the HDMI Out connect of the second display to the HDMI In connection of the third display. 


1.6. Check to see if your cables are connected as follows: 



Step 2: Configure Your Display

Step 2: 
Assign the ID of the displays by changing the ID and IP address of the displays.

2.1. To manage all displays from one single remote, Click and HOLD the "Remote ID Set" button, while still HOLDING this button, select the "0" button, THEN release the "Remote ID Set" button. 

2.2. To assign a display to a specific remote control, Click and HOLD the "Remote ID Set" button, while still HOLDING this button, select the "1" button once THEN release the "Remote ID Set" button.

Note: The display and remote must be the same number, continue to step 2.3 to configure the display number.



2.3. In order to program the correct ID/ IP address, navigate over to the "Multi Display Setting" > "ID Control" > select " Auto ID/IP Setting" > select "Start" > select "Set". Next confirm the number of displays and select "Confirm".

For more information on how to configure your NEC remotes, follow NEC's troubleshooting guide here.

The displays should be configured like so:


If all displays are not detected, try confirming the number of detected displays again through the menu. If there is still a discrepancy between detected monitors and the number of total monitors, you may have to check your LAN1 (In) and LAN2 (Out) connections.


2.4. Next, you want to distribute the input signal to the entire video wall. Using the same menu, navigate up to the "Auto Tile Matrix Set-Up".


2.5. Set the number of horizontal displays & vertical displays, then select "Activate" and then select "Set".


2.6. Next, navigate to the first screen (control display) that contains the OPS module and change the brightness. 



2.7. To align all monitors within the video wall with the same application Preset of the first screen, copy the chosen settings to all monitors. Head over to display (2) and open the "Multi Display Setting" > select "Setting Copy", select "Picture Set", select "Copy Start", then select "Yes".


2.8. For extra calibration and to compensate for the vertical image shift often visible in fast-moving pictures between, navigate to the displays OSD and enable the "Frame Comp" or "Reverse Scan" options. 



If you have any additional questions on how to set up your NEC display to use "Daisy Chaining" for video walls, or any other questions or feedback about ScreenCloud, feel free to reach out to our support team at or give us a call at our toll-free support line at +18885575335.





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