UHD14-EX100-K Overview and Use Cases

What Is the UHD14-EX100-K?

The OREI UHD14-EX100-K is a 4K@60Hz 1x4 HDMI splitter extender with IR pass-back and HDMI loop out. It distributes one HDMI source to one local HDMI display and up to four remote HDMI displays over CAT6 / CAT6A / CAT7 cable.

The kit includes one Transmitter, four Receivers, one DC 12V/3A power adapter, one user manual, one IR Blaster extension cable, and four IR Receiver extension cables. The HDMI source connects to HDMI INPUT on the Transmitter, the local display connects to HDMI OUTPUT on the Transmitter, and each Receiver connects to a remote HDMI display using HDMI. CAT6 / CAT6A / CAT7 cable connects the Transmitter RJ45 outputs to each Receiver.

The UHD14-EX100-K supports HDMI 2.0 and HDCP 2.2. It supports video resolutions up to 4K@60Hz, 4K@30Hz, 1080p@60Hz, and 720p@60Hz. It supports IR pass-back from the Receiver side to the source side, HDMI loop out on the Transmitter, wall-mount Receiver design, and Power over Cable so only the Transmitter requires the included power adapter.

The UHD14-EX100-K is useful for home theaters, classrooms, conference rooms, control rooms, retail displays, exhibitions, video conference rooms, show centers, AV racks, and installations where one HDMI source needs to be duplicated to one local display and four remote displays.

IMPORTANT — UHD14-EX100-K Is a 1x4 HDMI Splitter Extender

The UHD14-EX100-K distributes one HDMI source to up to four remote HDMI displays.

This product duplicates the same HDMI source across the connected displays. It does not create separate extended screens.

IMPORTANT — Supports 4K@60Hz

The UHD14-EX100-K supports video resolutions up to 4K@60Hz.

To get 4K@60Hz, the HDMI source, displays, HDMI cables, CAT cables, and source output settings must all support the required signal.

IMPORTANT — Extends up to 30m at 4K@60Hz

The UHD14-EX100-K supports different extension distances depending on the signal resolution.

For best performance, use high-quality CAT6 / CAT6A / CAT7 cable.

Poor CAT cable, weak terminations, damaged connectors, couplers, wall plates, patch panels, or low-quality cable may cause no video, flickering, partial display output, IR issues, or unstable performance.

IMPORTANT — Use Direct CAT Cable Connection

Connect each Transmitter RJ45 output directly to each Receiver RJ45 input using CAT6 / CAT6A / CAT7 cable.

Do not connect the CAT cable through:

• Network switch
• Router
• Internet network
• LAN switch
• Standard Ethernet network

This is a direct HDMI extender splitter over CAT cable. It is not an AV-over-IP system.

IMPORTANT — Power over Cable Is Supported

The UHD14-EX100-K supports Power over Cable.

Only one power adapter is needed at the Transmitter end. The Receivers receive power from the Transmitter through the CAT cable.

The Receivers include DC 12V/1A power input ports, but normal operation uses Power over Cable from the Transmitter.

IMPORTANT — HDMI Loop Out Is Supported

The UHD14-EX100-K includes HDMI loop out on the Transmitter.

The HDMI loop out is useful when a local display is needed near the source, such as in an AV rack, control room, classroom, equipment room, or source-side display location.

IMPORTANT — IR Pass-Back Is Supported

The UHD14-EX100-K supports IR pass-back.

This allows the HDMI source device to be controlled from the Receiver / display side.

Use the source device remote, not the TV remote, when controlling the HDMI source from the Receiver location.

The manual notes not to remote control more than one Receiver unit’s IR cable at the same time to avoid interference.

IMPORTANT — This Duplicates the Same Screen

The UHD14-EX100-K is an HDMI splitter extender.

It can duplicate one HDMI source to multiple displays.

It cannot create separate extended screens from one computer.

For PC extended desktop mode, a multi-output graphics card, docking station, or dedicated multi-display solution is required.

Ports and Panel Layout

Step-by-Step Setup

1. Connect the HDMI source device to HDMI INPUT on the Transmitter.

Examples include a DVD player, Blu-ray player, cable box, streaming device, media player, laptop, desktop PC, DVR, NVR, PS3, or HDMI matrix output.

1. Connect a local display to HDMI OUTPUT on the Transmitter if a source-side display is needed.
2. Connect CAT6 / CAT6A / CAT7 cable from the Transmitter RJ45 output to the Receiver RJ45 input.
3. Repeat the CAT cable connection for Receiver 2, Receiver 3, and Receiver 4 as needed.
4. Connect each Receiver HDMI OUTPUT to a TV, monitor, projector, or display.
5. Connect the included DC 12V/3A power adapter to the Transmitter.
6. If using IR control, connect the IR Blaster cable to IR OUT on the Transmitter.
7. Place the IR Blaster near the HDMI source device’s IR sensor.
8. Connect the IR Receiver cable to IR IN on each Receiver.
9. Place the IR Receiver near the remote display where the remote will be used.
10. Power on the HDMI source, local display, remote displays, and Transmitter.
11. Check that the red power indicator is on.
12. Check that the blue signal indicator is on when there is image transmission.
13. Test video and audio on the local display and each remote display.
14. Test IR source control from the Receiver location.

CAT Cable Requirement — Critical

Use high-quality CAT6 / CAT6A / CAT7 cable.

The manual lists the IEEE-568B wiring order as:

Poor or incorrectly terminated CAT cable may cause:

• No video
• Flickering
• Black screen
• Partial display output
• Receiver not powering on
• Signal indicator issues
• IR control issues
• HDMI handshake issues
• Unstable 4K performance

Use direct, properly terminated cable whenever possible.

HDMI Cable Requirement — Critical

Use high-quality HDMI cables, especially for 4K@60Hz.

Poor HDMI cables may cause:

• No picture
• Flickering
• Black screen
• HDMI source not detected
• HDMI loop out not working
• Receiver HDMI output not working
• HDCP handshake issues
• Audio dropouts

For troubleshooting, test the HDMI source directly with the display before using the extender splitter.

IR Cable Requirement — Critical

Use the included IR cables for source control.

If IR control does not work:

• Confirm the IR Blaster is connected to IR OUT on the Transmitter
• Confirm the IR Receiver is connected to IR IN on the Receiver
• Place the IR Blaster near the source device’s IR sensor
• Use the HDMI source device remote
• Make sure the CAT connection is working properly
• Avoid controlling more than one Receiver IR cable at the same time

Power Requirement — Critical

The UHD14-EX100-K uses one DC 12V/3A power adapter at the Transmitter.

If a Receiver does not power on, check the Transmitter power adapter, CAT cable, cable termination, RJ45 output port, and Receiver RJ45 input port.

Understanding the Transmitter

The Transmitter is installed near the HDMI source.

It has:

• DC 12V power input
• IR OUT
• HDMI INPUT
• HDMI OUTPUT loop out
• Four RJ45 outputs
• Grounding connection
• Power / signal indicator
• Reset button

The Transmitter receives the HDMI signal from the source, provides HDMI loop out for a local display, sends the signal to up to four Receivers through CAT cable, and sends IR control back to the HDMI source device.

Understanding the Receiver

Each Receiver is installed near a remote display.

Each Receiver has:

• Reset button
• RJ45 signal input
• Power / signal indicator
• Optional power input
• HDMI signal output
• IR signal input

The Receiver receives HDMI signal and power through the CAT cable from the Transmitter, outputs HDMI to the connected display, and receives IR remote commands through the IR Receiver cable.

Understanding the Application Example

The application diagram shows a DVD source connected to the Transmitter HDMI input. A local UHD display connects to the Transmitter HDMI output. CAT cable connects the Transmitter to the Receivers. Each Receiver connects to a remote TV using HDMI. The IR Blaster connects at the Transmitter side and the IR Receiver cables connect at the Receiver side so the source can be controlled remotely.

This shows the main use case: distributing one HDMI source to one local display and four remote displays while allowing IR control from the remote display locations.

Understanding Power and Signal Indicators

Use the power / signal indicators first when troubleshooting display or connection issues.

Supported Video and IR

The UHD14-EX100-K supports video formats including:

Supported IR:

Supported Technical Specifications

What Source Devices Is the UHD14-EX100-K Compatible With?

The UHD14-EX100-K is compatible with HDMI source devices such as:

• DVD players
• Blu-ray players
• Cable boxes
• Satellite receivers
• Streaming devices
• Media players
• Desktop PCs
• Laptops with HDMI output
• DVRs
• NVRs
• Game consoles
• HDMI matrix outputs
• HDMI switch outputs
• AV receivers with HDMI output

The source must output a supported HDMI resolution up to 4K@60Hz.

What Displays Is the UHD14-EX100-K Compatible With?

The UHD14-EX100-K can connect to HDMI displays such as:

• 4K TVs
• 1080p TVs
• Monitors
• Projectors
• Commercial displays
• Classroom displays
• Conference room displays
• Retail displays
• Digital signage displays
• Control room displays
• Exhibition displays
• Remote display locations

For 4K@60Hz, the display must support 4K@60Hz input.

Frequently Asked Questions

Q: What is the OREI UHD14-EX100-K used for? 
A: It is used to distribute one HDMI source to one local HDMI display and up to four remote HDMI displays over CAT6 / CAT6A / CAT7 cable.

Q: Is the UHD14-EX100-K a 1x4 HDMI splitter extender? 
A: Yes. It sends one HDMI source to up to four remote HDMI displays and one local HDMI display.

Q: Does the UHD14-EX100-K support 4K@60Hz? 
A: Yes. It supports video resolutions up to 4K@60Hz.

Q: What HDMI version does it support? 
A: It supports HDMI 2.0.

Q: What HDCP version does it support? 
A: It supports HDCP 2.2.

Q: How far can it extend HDMI at 4K@60Hz? 
A: It extends HDMI up to 30m at 4K@60Hz over CAT6 / CAT6A / CAT7 cable.

Q: How far can it extend HDMI at 4K@30Hz or 1080p? 
A: It extends HDMI up to 60m at 4K@30Hz or 1080p over CAT6 / CAT6A / CAT7 cable.

Q: What CAT cable should I use? 
A: Use CAT6 / CAT6A / CAT7 cable with IEEE-568B wiring.

Q: Can I connect it through a network switch? 
A: No. It requires a direct CAT cable connection between the Transmitter and each Receiver.

Q: Is this AV over IP? 
A: No. It is a direct HDMI extender splitter over CAT cable.

Q: Does it support Power over Cable? 
A: Yes. The Receivers are powered through the CAT cable from the Transmitter.

Q: Do the Receivers need separate power adapters? 
A: No. The included power adapter connects to the Transmitter. Receiver power is normally supplied through the CAT cable.

Q: What power adapter does it use? 
A: The Transmitter uses a DC 12V/3A power adapter.

Q: Does the Transmitter have HDMI loop out? 
A: Yes. The Transmitter has HDMI OUTPUT for connecting a local display.

Q: What is HDMI loop out used for? 
A: HDMI loop out allows a local display to be connected near the HDMI source while the same signal is also sent to the remote displays.

Q: Does it support IR control? 
A: Yes. It supports IR pass-back using the included IR Blaster and IR Receiver cables.

Q: Which IR cable connects to the Transmitter? 
A: The IR Blaster cable connects to the Transmitter IR OUT port.

Q: Which IR cable connects to the Receiver? 
A: The IR Receiver cable connects to the Receiver IR IN port.

Q: Can each display show different content? 
A: No. This product duplicates the same HDMI source to all connected displays.

Q: Can I use this to extend my PC display to multiple locations? 
A: It can duplicate the PC screen to multiple locations, but it does not create extended desktop mode.

Q: What does the red indicator mean? 
A: The red indicator means the unit is powered. If the red light is on but the blue light is not active, there may be no image transmission.

Q: What does the blue indicator mean? 
A: The blue indicator means image transmission is active.

Q: What should I do if there is no image or audio output? 
A: Check whether the display is in standby mode, confirm the HDMI input is correctly connected, check whether the Receiver signal indicator turns from red to blue, and check whether the Transmitter signal indicator turns blue.

Q: What should I do if the image is unstable? 
A: Press the Transmitter RESET button to re-identify the signal, then reconnect the CAT cable to the corresponding port.

Q: What should I do if only partial ports have output? 
A: Check that all CAT cables are connected properly, press the Transmitter RESET button to re-identify the signal, and reconnect the CAT cables to the corresponding ports.

Q: What should I do if IR control does not work? 
A: Confirm the IR Blaster is connected to IR OUT on the Transmitter, the IR Receiver is connected to IR IN on the Receiver, and avoid controlling more than one Receiver IR cable at the same time.

Q: Does the UHD14-EX100-K need external power? 
A: Yes. Connect the included DC 12V/3A power adapter to the Transmitter. The Receivers are powered through CAT cable using Power over Cable.