What Is the HD18-EX132-K?
The OREI HD18-EX132-K is a 1x8 HDMI extender splitter that distributes one HDMI source to one local HDMI display and up to eight remote HDMI displays over CAT6 / CAT7 cable. It supports video resolutions up to 4K@30Hz at 132ft and 1080p@60Hz up to 230ft.
The kit includes one Transmitter, eight Receivers, one IR Blaster cable, eight IR Receiver cables, mounting ears, machine screws, one power adapter, and a user manual. The HDMI source connects to HDMI IN on the Transmitter, the local display connects to HDMI OUT on the Transmitter, and each remote display connects to HDMI OUT on one Receiver. CAT6 / CAT7 cables connect the Transmitter CAT OUT ports to each Receiver.
The HD18-EX132-K supports HDMI 1.4 and HDCP 1.4, with a video bandwidth of 10.2Gbps. It supports video resolutions up to 4K@30Hz and 1080p@60Hz, HDR, HDR10, Dolby Vision, HLG, LPCM 7.1CH, Dolby TrueHD, DTS-HD Master Audio, HDMI loop out, unidirectional IR control, advanced EDID management, and Power over Cable so only the Transmitter requires the included power adapter.
The HD18-EX132-K is useful for retail displays, classrooms, houses of worship, restaurants, bars, conference rooms, control rooms, training rooms, digital signage, showrooms, AV racks, and installations where one HDMI source needs to be duplicated to up to eight remote displays.
IMPORTANT — HD18-EX132-K Is a 1x8 HDMI Extender Splitter
The HD18-EX132-K distributes one HDMI source to up to eight remote HDMI displays.
| Function | Support |
| 1 HDMI input | Supported |
| 8 remote HDMI outputs | Supported |
| HDMI loop out at Transmitter | Supported |
| One source to multiple displays | Supported |
| IR control | Supported |
| Matrix switching | Not supported |
| Extended desktop creation | Not supported |
This product duplicates the same HDMI source across all connected displays. It does not create separate extended screens.
IMPORTANT — Supports 4K@30Hz and 1080p@60Hz
The HD18-EX132-K supports video resolutions up to 4K@30Hz and 1080p@60Hz.
| Feature | Support |
| 4K@30Hz | Supported |
| 1080p@60Hz | Supported |
| HDMI 1.4 | Supported |
| HDCP 1.4 | Supported |
| Video bandwidth | 10.2Gbps |
| HDR | Supported |
| HDR10 | Supported |
| Dolby Vision | Supported |
| HLG | Supported |
| Color space | RGB, YCbCr 4:4:4 / 4:2:2, YUV 4:2:0 |
This model does not support 4K@60Hz, 4K@120Hz, or 8K.
IMPORTANT — Extends up to 132ft at 4K@30Hz and 230ft at 1080p@60Hz
The HD18-EX132-K supports different transmission distances depending on resolution.
| Resolution | Maximum Distance |
| 4K@30Hz | Up to 132ft |
| 1080p@60Hz | Up to 230ft |
For best performance, use high-quality CAT6 / CAT7 cable.
Poor CAT cable, weak terminations, damaged connectors, couplers, wall plates, patch panels, or low-quality cable may cause no video, flickering, signal loss, unstable video, or Receiver power issues.
IMPORTANT — Use Direct CAT Cable Connection
Connect each CAT OUT port on the Transmitter directly to the CAT port on each Receiver using CAT6 / 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 HD18-EX132-K supports Power over Cable.
| Power Setup | Support |
| Power adapter at Transmitter end | Required |
| Receivers powered through CAT cable | Supported |
| Separate Receiver power normally required | No |
| Included power adapter | DC 12V/2.5A |
Only the Transmitter requires the included power adapter. The Receivers receive power through the CAT cable connection from the Transmitter.
If a Receiver does not power on, check the Transmitter power adapter, CAT cable, cable termination, CAT OUT port, and Receiver CAT port.
IMPORTANT — HDMI Loop Out Is Supported
The HD18-EX132-K includes HDMI OUT loop output on the Transmitter.
| Unit | HDMI Port | Function |
| Transmitter | HDMI IN | Connect HDMI source device |
| Transmitter | HDMI OUT | Connect local display |
| Receiver | HDMI OUT | Connect remote display |
The HDMI loop out is useful when a local display is needed near the HDMI source, such as in an AV rack, control room, equipment room, or source-side display location.
IMPORTANT — IR Control Is Supported
The HD18-EX132-K supports unidirectional IR control from the Receiver side to the Transmitter side.
| IR Cable | Connection | Placement |
| IR Blaster | Transmitter IR OUT | Near HDMI source device |
| IR Receiver | Receiver IR IN | Near remote display |
This allows the HDMI source device to be controlled from the remote display location.
Use the source device remote, not the TV remote, when controlling the HDMI source from the Receiver location.
IMPORTANT — EDID Management Is Supported
The HD18-EX132-K includes EDID DIP switch control on the Transmitter.
EDID helps the HDMI source output a compatible video and audio format for the connected displays.
Use EDID settings when:
- There is no video
- A display shows unsupported format
- Audio format is not working correctly
- Different display models are connected
- The source is outputting a resolution the display cannot support
- You need to force 1080p, 4K@30Hz, 720p, 2CH audio, Dolby / DTS 5.1, or HD audio
After changing the EDID DIP switch, turn the Transmitter off and then back on for the selected EDID setting to take effect.
EDID preset options listed in the manual include:
| EDID Mode |
| 1080p, 2CH Audio |
| 1080p, Dolby / DTS 5.1 |
| 1080p, HD Audio |
| 1080i, 2CH Audio |
| 1080i, Dolby / DTS 5.1 |
| 1080i, HD Audio |
| 3D, 1080p, 2CH Audio |
| 3D, 1080p, Dolby / DTS 5.1 |
| 3D, 1080p, HD Audio |
| 4K30, 2CH Audio |
| 4K30, Dolby / DTS 5.1 |
| 4K30, HD Audio |
| Copy Loop Out |
| 720p, 2CH Audio |
| 720p, Dolby / DTS 5.1 |
| 720p, HD Audio |
IMPORTANT — This Duplicates the Same Screen
The HD18-EX132-K is an HDMI extender splitter.
It can duplicate one HDMI source to multiple displays.
It cannot create separate extended screens from one computer.
| Computer Display Mode | Supported? |
| Duplicate / mirror same screen | Yes |
| Extend desktop as separate screens | No |
For PC extended desktop mode, a multi-output graphics card, docking station, or dedicated multi-display solution is required.
IMPORTANT — Audio Pass-Through Is Supported
The HD18-EX132-K supports HDMI audio pass-through.
Supported audio formats include:
| Supported Audio |
| LPCM 7.1CH |
| Dolby TrueHD |
| DTS-HD Master Audio |
The connected HDMI source, display, AVR, soundbar, or audio system must also support the selected audio format.
Ports and Panel Layout
| Port / Button / Indicator | Unit | Function |
| POWER LED | Transmitter | Red LED lights when the Transmitter is powered on |
| CAT OUT 1–8 | Transmitter | Connect CAT6 / CAT7 cables to Receivers |
| Power LED | Transmitter | Green LED lights when power is being transmitted to the Receivers |
| Data Signal LED | Transmitter | Yellow LED shows HDMI signal / HDCP status |
| HDMI OUT | Transmitter | Connect local display such as TV or projector |
| HDMI IN | Transmitter | Connect HDMI source device such as DVD player, set-top box, media player, or computer |
| IR OUT | Transmitter | Connect IR Blaster cable |
| EDID DIP Switch | Transmitter | Select EDID preset |
| UPDATE | Transmitter | Connect to a PC for firmware update |
| DC 12V | Transmitter | Connect included power adapter |
| POWER Switch | Transmitter | Turn the device on / off |
| HDMI OUT | Receiver | Connect remote display such as TV or projector |
| IR IN | Receiver | Connect IR Receiver cable |
| CAT | Receiver | Connect CAT6 / CAT7 cable from Transmitter |
| Power LED | Receiver | Green LED lights when power is being received from the Transmitter |
| Data Signal LED | Receiver | Yellow LED shows HDMI signal / HDCP status |
Step-by-Step Setup
- Connect the HDMI source device to HDMI IN on the Transmitter.
Examples include a DVD player, Blu-ray player, cable box, satellite receiver, streaming device, media player, laptop, desktop PC, DVR, NVR, or HDMI matrix output.
- Connect a local display to HDMI OUT on the Transmitter if a source-side display is needed.
- Connect CAT6 / CAT7 cable from CAT OUT 1 on the Transmitter to the CAT port on Receiver 1.
- Repeat the CAT cable connection for Receiver 2 through Receiver 8 as needed.
- Connect each Receiver HDMI OUT to a TV, monitor, projector, or display.
- Set the EDID DIP switch based on the resolution and audio format needed.
- Connect the included DC 12V/2.5A power adapter to the Transmitter.
- Turn on the Transmitter using the POWER switch.
- If using IR control, connect the IR Blaster cable to IR OUT on the Transmitter.
- Place the IR Blaster near the HDMI source device’s IR sensor.
- Connect the IR Receiver cable to IR IN on each Receiver.
- Place the IR Receiver near the remote display where the source remote will be used.
- Power on the HDMI source and all connected displays.
- Check that the Transmitter power LED is on.
- Check that the Receiver power LEDs are on.
- Check the yellow data signal LEDs for HDMI signal status.
- Test video and audio on the local display and each remote display.
- Test IR source control from the Receiver location.
- If video does not display, try a lower source resolution, change the EDID setting, or test with a different CAT cable.
CAT Cable Requirement — Critical
Use high-quality CAT6 / CAT7 cable.
| Requirement | Specification |
| Cable type | CAT6 / CAT7 |
| 4K@30Hz distance | Up to 132ft |
| 1080p@60Hz distance | Up to 230ft |
| Connection | Direct Transmitter-to-Receiver connection |
Poor or incorrectly terminated CAT cable may cause:
- No video
- Flickering
- Black screen
- Receiver not powering on
- 4K@30Hz not working
- 1080p signal dropouts
- Audio dropouts
- IR control issues
- Signal loss
- HDMI handshake issues
- Unstable performance
Use direct, properly terminated cable whenever possible.
HDMI Cable Requirement — Critical
Use high-quality HDMI cables.
Poor HDMI cables may cause:
- No picture
- Flickering
- Black screen
- HDMI source not detected
- HDMI loop out not working
- Receiver HDMI OUT not working
- HDCP handshake issues
- Audio dropouts
For 4K@30Hz, use reliable HDMI cables that support the source resolution.
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.
| IR Cable | Connects To | Purpose |
| IR Blaster cable | Transmitter IR OUT | Sends IR signal to the HDMI source |
| IR Receiver cable | Receiver IR IN | Receives remote control signal at the display side |
The IR Receiver cable connects to the IR IN port on the Receiver. The IR head should be placed near the TV or anywhere in line of sight of the remote. The IR Blaster cable connects to IR OUT on the Transmitter, and the IR head should be placed near the IR window of the media source device.
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
Power Requirement — Critical
The HD18-EX132-K uses one DC 12V/2.5A power adapter.
| Unit | Power |
| Transmitter | DC 12V/2.5A |
| Receiver | Powered through CAT cable using Power over Cable |
| Power Detail | Value |
| Power adapter input | AC 100–240V, 50/60Hz |
| Power adapter output | DC 12V/2.5A |
| Power consumption | 19.2W max |
| Receiver separate power | Not normally required |
If a Receiver does not power on, check the Transmitter power adapter, POWER switch, CAT cable, CAT termination, CAT OUT port, and Receiver CAT port.
Understanding the Transmitter
The Transmitter is installed near the HDMI source.
It has:
- HDMI IN
- HDMI OUT loop output
- Eight CAT OUT ports
- IR OUT
- EDID DIP switch
- UPDATE port
- DC 12V power input
- POWER switch
- Red power LED
- Green power transmission LEDs
- Yellow data signal LEDs
The Transmitter receives the HDMI signal from the source, provides HDMI loop out for a local display, sends the signal to up to eight Receivers through CAT6 / CAT7 cable, and supports IR return control from the Receivers.
Understanding the Receiver
Each Receiver is installed near a remote display.
Each Receiver has:
- HDMI OUT
- IR IN
- CAT input
- Green power LED
- Yellow data signal LED
The Receiver receives 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 or Blu-ray player connected to HDMI IN on the Transmitter. A local TV connects to HDMI OUT on the Transmitter. CAT6 / CAT7 cable connects the Transmitter to remote Receivers. Each Receiver connects to a remote TV using HDMI OUT. The IR Blaster connects to IR OUT on the Transmitter, and IR Receiver cables connect to the Receivers so the source device can be controlled from the remote display locations.
This shows the main use case: distributing one HDMI source to one local display and up to eight remote displays while allowing IR control from the Receiver locations.
Understanding LED Indicators
| Indicator | Unit | Status | Meaning |
| POWER LED | Transmitter | Red on | Transmitter is powered on |
| Power LED | Transmitter | Green on | Power is being transmitted to Receivers |
| Power LED | Receiver | Green on | Receiver is receiving power from Transmitter |
| Data Signal LED | Transmitter / Receiver | Solid yellow | HDMI signal with HDCP |
| Data Signal LED | Transmitter / Receiver | Flashing yellow | HDMI signal without HDCP |
| Data Signal LED | Transmitter / Receiver | Off | No HDMI signal |
Use these LEDs first when troubleshooting power, HDMI signal, or CAT cable issues.
Supported Video and Audio
The HD18-EX132-K supports video formats including:
| Supported Video |
| 480i |
| 1080p@60Hz |
| 4K@30Hz |
| RGB |
| YCbCr 4:4:4 |
| YCbCr 4:2:2 |
| YUV 4:2:0 |
| 8-bit color |
| 10-bit color |
| 12-bit color at 1080p@60Hz |
| 8-bit color at 4K@30Hz |
| HDR |
| HDR10 |
| Dolby Vision |
| HLG |
Supported audio formats include:
| Supported Audio |
| LPCM 7.1CH |
| Dolby TrueHD |
| DTS-HD Master Audio |
Supported Technical Specifications
| Specification | Support |
| Product Type | 1x8 HDMI extender splitter over CAT6 / CAT7 |
| HDMI Version | HDMI 1.4 |
| HDCP Version | HDCP 1.4 |
| Video Bandwidth | 10.2Gbps |
| Maximum Resolution | 4K@30Hz |
| 1080p Support | 1080p@60Hz |
| 4K@30Hz Distance | Up to 132ft over CAT6 / CAT7 |
| 1080p@60Hz Distance | Up to 230ft over CAT6 / CAT7 |
| HDR | HDR, HDR10, Dolby Vision, HLG |
| Color Space | RGB, YCbCr 4:4:4 / 4:2:2, YUV 4:2:0 |
| Color Depth | 8-bit, 10-bit, 12-bit at 1080p@60Hz; 8-bit at 4K@30Hz |
| Audio Formats | LPCM 7.1CH, Dolby TrueHD, DTS-HD Master Audio |
| HDMI Loop Out | Supported on Transmitter |
| IR Control | Unidirectional IR from Receiver to Transmitter |
| EDID Management | Supported using DIP switch |
| Power over Cable | Supported |
| Transmitter Input | 1 x HDMI IN |
| Transmitter Outputs | 1 x HDMI OUT, 8 x CAT OUT |
| Transmitter Control | IR OUT, SERVICE update port, EDID DIP switch |
| Receiver Input | 1 x CAT |
| Receiver Output | 1 x HDMI OUT |
| Receiver Control | IR IN |
| Power Supply | Input: AC 100–240V 50/60Hz; Output: DC 12V/2.5A |
| Power Consumption | 19.2W max |
| Housing | Metal enclosure |
| Color | Black |
| Transmitter Dimensions | 295mm x 82mm x 18mm / 11.6in x 3.22in x 0.7in |
| Receiver Dimensions | 79.5mm x 69mm x 16.5mm / 3.12in x 2.7in x 0.65in |
| Transmitter Weight | 628g / 1.39lbs |
| Receiver Weight | 130g / 4.58oz |
| Operating Temperature | 0°C to 40°C / 32°F to 104°F |
| Storage Temperature | -20°C to 60°C / -4°F to 140°F |
| Relative Humidity | 20–90% RH, non-condensing |
| ESD Protection | ±8kV air-gap discharge, ±4kV contact discharge |
What Source Devices Is the HD18-EX132-K Compatible With?
The HD18-EX132-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@30Hz.
What Displays Is the HD18-EX132-K Compatible With?
The HD18-EX132-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
- Restaurant displays
- Bar displays
- Remote display locations
For 4K@30Hz, the display must support 4K@30Hz input.
Frequently Asked Questions
Q: What is the OREI HD18-EX132-K used for?
A: It is used to distribute one HDMI source to one local HDMI display and up to eight remote HDMI displays over CAT6 / CAT7 cable.
Q: Is the HD18-EX132-K a splitter extender?
A: Yes. It is a 1x8 HDMI extender splitter.
Q: Does the HD18-EX132-K support 4K@60Hz?
A: No. It supports up to 4K@30Hz.
Q: Does it support 1080p@60Hz?
A: Yes. It supports 1080p@60Hz.
Q: Does it support 8K?
A: No. It does not support 8K.
Q: Does it support 4K@120Hz?
A: No. It does not support 4K@120Hz.
Q: What HDMI version does it support?
A: It supports HDMI 1.4.
Q: What HDCP version does it support?
A: It supports HDCP 1.4.
Q: What video bandwidth does it support?
A: It supports 10.2Gbps video bandwidth.
Q: How far can it extend HDMI at 4K@30Hz?
A: It extends HDMI up to 132ft at 4K@30Hz over CAT6 / CAT7 cable.
Q: How far can it extend HDMI at 1080p@60Hz?
A: It extends HDMI up to 230ft at 1080p@60Hz over CAT6 / CAT7 cable.
Q: What CAT cable should I use?
A: Use CAT6 or CAT7 cable.
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 CAT cable from the Transmitter.
Q: Do the Receivers need separate power adapters?
A: No. Only the Transmitter requires the included power adapter.
Q: What power adapter does it use?
A: It uses a DC 12V/2.5A power adapter.
Q: Does the Transmitter have HDMI loop out?
A: Yes. The Transmitter has HDMI OUT 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 unidirectional IR control from the Receiver side to the Transmitter side.
Q: Which IR cable connects to the Transmitter?
A: The IR Blaster cable connects to IR OUT on the Transmitter.
Q: Which IR cable connects to the Receiver?
A: The IR Receiver cable connects to IR IN on the Receiver.
Q: Can I use the TV remote to control the media source?
A: No. Use the media source remote to control the source device through IR.
Q: Does it support EDID management?
A: Yes. It supports EDID management using the DIP switch on the Transmitter.
Q: Do I need to restart the Transmitter after changing EDID?
A: Yes. Turn the Transmitter off and then back on for the selected EDID setting to take effect.
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: You can duplicate the PC screen to multiple locations, but it will not create extended desktop mode.
Q: Can I connect only some of the Receivers instead of all eight?
A: Yes. You can use only the number of Receiver outputs needed.
Q: Does it support audio pass-through?
A: Yes. It supports HDMI audio pass-through.
Q: What audio formats are supported?
A: It supports LPCM 7.1CH, Dolby TrueHD, and DTS-HD Master Audio.
Q: Does it support Dolby Atmos?
A: Dolby Atmos is not listed in the manual.
Q: Does it support Dolby Vision?
A: Yes. Dolby Vision is listed as supported.
Q: Does it support RS-232?
A: RS-232 is not listed for this model.
Q: Does it support audio extraction?
A: Audio extraction is not listed for this model.
Q: What does the green power LED mean on the Receiver?
A: It means the Receiver is receiving power from the Transmitter.
Q: What does the yellow data signal LED mean?
A: Solid yellow means HDMI signal with HDCP, flashing yellow means HDMI signal without HDCP, and off means no HDMI signal.
Q: What should I do if there is no output?
A: Try a lower resolution from the source device, try changing the CAT cable, try changing the EDID settings, and check if HDMI OUT on the Transmitter has the same issue.
Q: What should I do if 4K@30Hz does not work?
A: Use high-quality HDMI cables, use CAT6 / CAT7 cable within 132ft, confirm the source and display support 4K@30Hz, and try a different EDID setting.
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 the IR Blaster is placed near the HDMI source device’s IR sensor.
Q: What should I do if a Receiver does not power on?
A: Check the Transmitter power adapter, POWER switch, CAT cable, CAT termination, CAT OUT port, and Receiver CAT port.
Q: Does the HD18-EX132-K need external power?
A: Yes. Connect the included DC 12V/2.5A power adapter to the Transmitter. The Receivers are powered through CAT cable using Power over Cable.
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