HD-EXM330-RX Overview and Use Cases

What Is the HD-EXM330-RX?

The OREI HD-EXM330-RX is an HDMI over IP Receiver / Decoder used with a compatible HDMI over IP Transmitter / Encoder system. It receives an HDMI-over-IP signal over CAT5e / CAT6 cable and outputs HDMI to a display.

The uploaded manual describes the system as an HDMI over IP extender with loop out, using an Encoder and Decoder setup. The Encoder captures the HDMI source signal and sends it through CAT5e / CAT6 cable, while the Decoder receives the signal and outputs HDMI to a TV, monitor, or display. The system supports direct Encoder-to-Decoder connection or one Encoder to multiple Decoders through a standard 1G network switch, router, or hub. 

The HD-EXM330-RX is useful when adding an extra display location to a compatible HDMI over IP system, such as in classrooms, retail displays, restaurants, bars, conference rooms, AV racks, signage systems, and multi-display installations.

IMPORTANT — HD-EXM330-RX Is a Receiver / Decoder

The HD-EXM330-RX is the receiving side of the HDMI over IP extender system.

The Receiver must be used with a compatible Encoder / Transmitter.

IMPORTANT — This Is HDMI Over IP

The system is based on an AV over IP solution.

For one-to-many use, the same HDMI source can be distributed to multiple compatible Receivers / Decoders.

IMPORTANT — Supports up to 1920x1200@60Hz

The manual lists video resolution support from 640x480@60Hz up to 1920x1200@60Hz.

This model is not a 4K extender.

IMPORTANT — Does Not Support 4K

The HD-EXM330-RX system supports up to 1920x1200@60Hz.

It does not support:

• 4K 
• 4K@60Hz 
• 4K@120Hz 
• 8K 

For 4K HDMI over IP extension, use a 4K-compatible OREI HDMI over IP extender model.

IMPORTANT — Extends up to 100m / 328ft

The manual states that the extender can reach up to 100m / 328ft between Encoder and Decoder over CAT5e / CAT6 cable.

For best performance, use high-quality CAT5e / CAT6 cable with proper termination.

Poor CAT cable, damaged connectors, weak terminations, low-quality patch cables, or unstable switch connections may cause video dropouts or connection issues.

IMPORTANT — Can Work Through a 1G Network Switch

The manual lists support for a standard 1G IP switcher / router / hub.

Use a 1G network switch for one-to-many display distribution.

IMPORTANT — HDMI Loop Out Is on the Encoder, Not the Receiver

The manual lists HDMI loop output on the Encoder.

The HD-EXM330-RX Receiver outputs HDMI to the display. It does not have HDMI loop output.

IMPORTANT — One-Way IR Control Is Supported

The system supports one-way IR control.

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

Typical source-control setup:

1. Connect the IR Receiver cable to IR IN on the Receiver. 
2. Place the IR Receiver near the display. 
3. Connect the IR Blaster cable to IR OUT on the Encoder. 
4. Place the IR Blaster near the HDMI source device’s IR sensor. 
5. Use the source remote from the display location. 

IMPORTANT — Decoder Reset Button Can Copy EDID

The Receiver / Decoder has a reset button with two functions.

After reset, the EDID returns to default 1920x1080@60Hz.

Use EDID copy when the source is not outputting the correct resolution for the connected display.

IMPORTANT — Default Encoder IP Address Is 192.168.10.10

The manual lists the Encoder default IP address as 192.168.10.10 for Web GUI access and VLC stream use.

The computer and Encoder must be on the same network segment when using the Web GUI or VLC stream.

IMPORTANT — VLC Stream Playback Is Supported From the Encoder

The Encoder can send a stream to a computer using VLC media player.

The Web GUI can adjust stream settings such as codec type, resolution, and bitrate.

This is mainly an Encoder-side feature, but it helps installers understand the full HDMI over IP system.

Ports and Panel Layout — Receiver / Decoder

Step-by-Step Setup — Direct Encoder to Receiver

1. Connect the HDMI source to HDMI IN on the compatible Encoder. 
   Examples include a DVD player, Blu-ray player, set-top box, media player, DVR, NVR, or computer. 
2. Connect a local display to HDMI OUT on the Encoder if local loop output is needed. 
3. Connect CAT OUT on the Encoder to CAT IN on the HD-EXM330-RX Receiver using CAT5e / CAT6 cable. 
4. Connect HDMI OUT on the Receiver to the remote display. 
5. Connect the DC 5V/1A power adapter to the Encoder. 
6. Connect the DC 5V/1A power adapter to the Receiver. 
7. If using IR control, connect the IR Receiver cable to IR IN on the Receiver. 
8. Connect the IR Blaster cable to IR OUT on the Encoder. 
9. Power on the HDMI source, display, Encoder, and Receiver. 
10. Check the POWER LED and LINK LED. 
11. Test HDMI video, audio, and IR control. 

Step-by-Step Setup — One Encoder to Multiple Receivers

1. Connect the HDMI source to HDMI IN on the Encoder. 
2. Connect Encoder CAT OUT to a 1G network switch using CAT5e / CAT6 cable. 
3. Connect each HD-EXM330-RX Receiver CAT IN to the same 1G switch. 
4. Connect each Receiver HDMI OUT to a display. 
5. Power the Encoder, Receivers, switch, source, and displays. 
6. Connect IR control only where source control is needed from the display side. 
7. Check the LINK LEDs on the Encoder and Receivers. 
8. Test video on each display. 

All connected Receivers show the same HDMI source from the Encoder.

CAT Cable Requirement — Critical

Use high-quality CAT5e / CAT6 cable.

Poor CAT cable may cause:

• No video 
• Flickering 
• Black screen 
• Decoder not linking 
• LINK LED not flashing 
• Video stream not playing correctly 
• One-to-many distribution issues 
• Reduced working distance 

Use properly terminated cable and avoid poor patch paths.

HDMI Cable Requirement — Critical

The manual recommends Premium High Speed HDMI cables.

Poor HDMI cables may cause no picture, unstable video, no audio, or display detection issues.

Power Requirement — Critical

The system uses DC 5V/1A power adapters.

Power consumption:

If the POWER LED does not illuminate, check the power adapter, outlet, and DC 5V connection.

Understanding the Receiver / Decoder

The HD-EXM330-RX Receiver is installed near the display.

It has:

• HDMI OUT for display connection 
• CAT IN for receiving signal from Encoder or switch 
• IR IN for source remote control from the display side 
• RESET button for reset and EDID copy 
• LINK LED 
• POWER LED 
• DC 5V input 

The Receiver converts the HDMI-over-IP stream back to HDMI for the connected display.

Understanding the Encoder / Transmitter

The compatible Encoder is installed near the HDMI source.

It has:

• HDMI IN for source input 
• HDMI OUT for local loop output 
• CAT OUT for connection to Receiver, PC, or network switch 
• IR OUT for source control 
• RESET button 
• LINK LED 
• POWER LED 
• DC 5V input 

The Encoder captures the HDMI source and sends it over CAT cable using H.265 compression.

Understanding One-to-Many Distribution

One Encoder can send the same HDMI source to multiple Receivers through a 1G network switch.

This is useful for:

• Restaurants 
• Sports bars 
• Classrooms 
• Retail displays 
• Digital signage 
• Conference rooms 
• Worship spaces 
• Security monitoring displays 

All displays show the same source unless separate Encoders are used for separate sources.

Understanding H.265 Compression

The system uses H.265 compression technology.

H.265 helps send video over a standard 1G network while keeping bandwidth lower than uncompressed HDMI.

Because this is compressed HDMI over IP, it is different from HDBaseT extenders.

Understanding Web GUI and Stream Settings

The Encoder Web GUI allows control of stream settings.

MainStream provides higher resolution and bitrate than SubStream.

Understanding IR Control

IR control lets the user control the HDMI source from the display location.

The supported IR frequency is 20kHz to 60kHz.

Understanding LEDs

Use the POWER and LINK LEDs first when troubleshooting.

Supported Video and Audio

The HD-EXM330-RX system supports:

Supported Technical Specifications

What Source Devices Is This System Compatible With?

The compatible Encoder can connect to HDMI source devices such as:

• DVD players 
• Blu-ray players 
• Set-top boxes 
• Cable boxes 
• Satellite receivers 
• Streaming devices 
• Media players 
• DVRs 
• NVRs 
• Computers with HDMI output 
• HDMI switch outputs 
• HDMI matrix outputs 

The source must output a supported HDMI resolution up to 1920x1200@60Hz.

What Displays Is the HD-EXM330-RX Compatible With?

The HD-EXM330-RX Receiver can connect to HDMI displays such as:

• 1080p TVs 
• HD monitors 
• Projectors 
• Digital signage displays 
• Conference room displays 
• Classroom displays 
• Retail displays 
• Restaurant TVs 
• Bar TVs 
• Security monitoring displays 

The display must support the selected HDMI output resolution.

Frequently Asked Questions

Q: What is the OREI HD-EXM330-RX used for? 
A: It is used as a Receiver / Decoder in a compatible HDMI over IP extender system. It receives the signal over CAT5e / CAT6 cable and outputs HDMI to a display.

Q: Is HD-EXM330-RX a standalone HDMI extender kit? 
A: No. It is the Receiver side. It requires a compatible Encoder / Transmitter to send the HDMI signal.

Q: Does it support HDMI over IP? 
A: Yes. The manual describes the system as HDMI over IP using Encoder and Decoder units.

Q: Can one Encoder work with multiple HD-EXM330-RX Receivers? 
A: Yes. The manual shows one Encoder connected to multiple Decoders through a switch.

Q: What network switch should I use? 
A: Use a standard 1G network switch / router / hub.

Q: How far can it extend HDMI? 
A: It extends up to 100m / 328ft over CAT5e / CAT6 cable between Encoder and Decoder.

Q: Does it support 4K? 
A: No. The maximum listed resolution is 1920x1200@60Hz.

Q: Does it support 1080p? 
A: Yes. 1080p is supported.

Q: What HDMI version does it support? 
A: It supports HDMI 1.4b.

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: What compression technology does it use? 
A: The system supports H.265 encoding / decoding.

Q: Does it support H.264? 
A: The Web GUI section shows H.264 and H.265 options for stream settings.

Q: Does the Receiver have HDMI input? 
A: No. The Receiver has HDMI OUT only.

Q: Does the Receiver have HDMI loop out? 
A: No. HDMI loop out is on the Encoder.

Q: Does it support IR control? 
A: Yes. It supports one-way IR control from the Receiver side to the Encoder side.

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

Q: Which IR cable connects to the Encoder? 
A: The wideband IR Blaster cable connects to IR OUT on the Encoder.

Q: Does it support RS-232? 
A: RS-232 is not listed for this model.

Q: Does it support audio? 
A: Yes. It supports LPCM 2.0CH, 48kHz HDMI audio.

Q: Does it support Dolby Digital or DTS? 
A: The manual lists LPCM 2.0CH, 48kHz only.

Q: What does the Receiver LINK LED mean? 
A: The LINK LED flashes blue when the Receiver is connected to the Encoder or connected through a switch / router / hub.

Q: What does the Receiver POWER LED mean? 
A: The POWER LED illuminates blue when the Receiver is powered on.

Q: What does the Receiver RESET button do? 
A: A short press resets the product, including IP address, encoding information, and EDID. Pressing up to 3 seconds copies EDID from the Receiver display to the Encoder source device.

Q: What is the default EDID after reset? 
A: The EDID returns to 1920x1080@60Hz.

Q: What power adapter does the Receiver use? 
A: It uses DC 5V/1A power.

Q: Does the Receiver need external power? 
A: Yes. Connect a DC 5V/1A power adapter to the Receiver.

Q: What should I do if there is no video? 
A: Check Receiver power, Encoder power, HDMI source, HDMI cables, CAT cable, display input, LINK LED, and whether the Encoder and Receiver are connected directly or through a working 1G switch.

Q: What should I do if the LINK LED does not flash? 
A: Check the CAT cable, switch connection, Encoder power, Receiver power, and confirm CAT OUT from the Encoder is connected to CAT IN on the Receiver.

Q: What should I do if the display shows the wrong resolution? 
A: Press the Receiver reset button for up to 3 seconds to copy EDID from the connected display to the Encoder source device.

Q: What should I do if IR control does not work? 
A: Confirm the IR Receiver is connected to Receiver IR IN, the IR Blaster is connected to Encoder IR OUT, and the IR Blaster is placed near the source device’s IR window.

Q: Can I watch the stream on a computer using VLC? 
A: Yes. The Encoder supports VLC playback using RTSP stream URLs when the computer is on the same network segment.

Q: What is the default Encoder IP address? 
A: The default Encoder IP address is 192.168.10.10.

Q: What MainStream URL does VLC use? 
A: rtsp://192.168.10.10/live/main/av_stream

Q: What SubStream URL does VLC use? 
A: rtsp://192.168.10.10/live/sub/av_stream

Q: Does the HD-EXM330-RX need external power? 
A: Yes. The Receiver uses DC 5V/1A power and should be powered for normal operation.