What Is the UHD-EXB132AR-K?
The OREI UHD-EXB132AR-K is a 4K HDBaseT HDMI extender kit with ARC, CEC, audio extraction, bi-directional IR, RS-232 pass-through, and PoC. It extends HDMI video and audio from a source to a remote display over a single CAT6 cable.
The kit includes a Transmitter and Receiver. The HDMI source connects to HDMI IN on the Transmitter, the remote display connects to HDMI OUT on the Receiver, and a CAT6 / CAT7 cable connects the Transmitter HDBT OUT to the Receiver HDBT IN.
The UHD-EXB132AR-K supports HDMI 2.0b and HDCP 2.2 / 1.x, with a video bandwidth of 18Gbps. It supports video resolutions up to 4K@60Hz, HDR10, HDR10+, Dolby Vision, ARC audio return, optical S/PDIF audio return, L/R analog audio output, bi-directional IR, RS-232, CEC pass-through, and Power over Cable. It extends 4K@60Hz 4:4:4 up to 132ft / 40m and 1080p@60Hz up to 230ft / 70m.
The UHD-EXB132AR-K is useful for home theaters, media closets, conference rooms, classrooms, projector setups, AV racks, and commercial or residential installations where HDMI video and TV ARC audio need to be extended over CAT cable.
IMPORTANT — UHD-EXB132AR-K Supports 4K@60Hz
The UHD-EXB132AR-K supports HDMI video resolutions up to 4K@60Hz.
Supported video resolutions include:
| Supported Video |
| 4K@50/60Hz 4:4:4 |
| 4K@50/60Hz 4:2:0 |
| 4K@30Hz 4:4:4 |
| 2K@30/50/60Hz |
| 1080p |
| 1080i |
| 720p |
| 720i |
| 480p |
| 480i |
| PC resolutions up to 1920 x 1200 |
To get 4K@60Hz, the HDMI source, display, HDMI cables, CAT cable, and source output settings must all support the required signal.
IMPORTANT — Maximum Distance Depends on Resolution
The UHD-EXB132AR-K supports different extension distances depending on resolution.
| Resolution | Maximum Distance |
| 4K@60Hz 4:4:4 | 132ft / 40m |
| 1080p@60Hz | 230ft / 70m |
For best performance, use high-quality CAT6 / CAT7 cable.
Poor cable quality, bad terminations, couplers, patch panels, or long HDMI cables can reduce the working distance.
IMPORTANT — Use a Direct CAT Cable Connection
The UHD-EXB132AR-K should be connected directly from the Transmitter HDBT OUT to the Receiver HDBT IN.
Do not connect the HDBT cable through:
- Network switch
- Router
- Internet network
- LAN switch
- Standard Ethernet port
- Home or office data network
This is an HDBaseT extender, not an AV-over-IP extender.
The CAT cable is used as a direct HDBaseT signal path between the Transmitter and Receiver.
IMPORTANT — PoC Power Is Supported
The UHD-EXB132AR-K supports Power over Cable.
Only one power adapter is needed for the full setup.
The included DC 24V/1A locking power adapter can be connected to either the Transmitter or Receiver, and the other unit is powered through the CAT cable.
| Power Setup | Support |
| Power Transmitter only | Supported |
| Power Receiver only | Supported |
| Power both units | Not required |
| Single power adapter included | Yes |
If one unit does not power on, check the power adapter, CAT cable, and HDBT connection.
IMPORTANT — ARC Function Is Supported
The UHD-EXB132AR-K supports ARC audio return.
ARC allows audio from an ARC-enabled TV connected to the Receiver HDMI OUT to return to the Transmitter side.
This is useful when the TV is installed in one location and the soundbar, AVR, or amplifier is in a media closet or equipment rack.
For ARC setup:
| Device | Connection |
| ARC TV | Connect to Receiver HDMI OUT |
| ARC soundbar / AVR | Connect to Transmitter HDMI IN |
| ARC mode | Enable using the SWITCH button until ARC LED is on |
The manual notes that the ARC port of the TV connects to HDMI OUT on the Receiver, and the ARC port of the AVR connects to HDMI IN on the Transmitter.
IMPORTANT — Audio Extraction Is Supported
The UHD-EXB132AR-K supports audio extraction from the HDMI source or from an ARC TV connected to the Receiver.
The Transmitter includes:
| Audio Output | Function |
| L/R OUT | 3.5mm analog stereo audio output |
| S/PDIF OUT | Optical digital audio output |
The Receiver includes:
| Audio Input | Function |
| S/PDIF IN | Optical audio input from TV for audio return to Transmitter |
If the L/R output is used, set the source audio to PCM / Stereo for best compatibility.
Important: The manual notes that if ARC function is on, the audio port will mute.
IMPORTANT — Audio Output Switching Is Included
The SWITCH button selects which audio signal goes to the Transmitter S/PDIF OUT and L/R OUT ports.
| ARC LED | S/PDIF LED | Audio Output Logic |
| On | Off | Transmitter S/PDIF OUT, L/R OUT, and HDMI IN output audio returned from the HDMI display on the Receiver |
| On | On | Transmitter S/PDIF OUT and L/R OUT output audio returned from the HDMI display on the Receiver |
| Off | On | Transmitter S/PDIF OUT and L/R OUT output audio returned from Receiver S/PDIF IN |
| Off | Off | Transmitter S/PDIF OUT and L/R OUT output audio extracted from the Transmitter |
Press the SWITCH button to cycle between modes 1 / 2 / 3. Long press the SWITCH button to enter mode 4, and long press again to return to modes 1 / 2 / 3.
IMPORTANT — Bi-Directional IR Is Supported
The UHD-EXB132AR-K supports bi-directional IR.
This means IR control can work in both directions:
| Direction | Use Case |
| Receiver side to Transmitter side | Control the HDMI source from the TV/display location |
| Transmitter side to Receiver side | Control the TV/display from the source or rack location |
Typical source-control setup:
- Connect IR Receiver cable to IR IN on the Receiver
- Connect IR Blaster cable to IR OUT on the Transmitter
- Place the IR Receiver near the remote display
- Place the IR Blaster near the source device IR window
Typical display-control setup:
- Connect IR Receiver cable to IR IN on the Transmitter
- Connect IR Blaster cable to IR OUT on the Receiver
- Place the IR Receiver near the source-side control location
- Place the IR Blaster near the TV/display IR window
IMPORTANT — RS-232 Pass-Through Is Supported
The UHD-EXB132AR-K supports RS-232 pass-through using 3-pin Phoenix connectors.
RS-232 can be used for:
- Projector control
- Display control
- Control processor integration
- Matrix control
- Automation systems
- Command signal extension
The RS-232 connection can pass commands between the Transmitter and Receiver.
IMPORTANT — CEC Pass-Through Is Supported
The UHD-EXB132AR-K supports CEC pass-through.
CEC allows compatible HDMI devices to send basic control commands over HDMI.
CEC behavior depends on the connected TV, source device, AVR, soundbar, HDMI cable, and device settings.
If CEC does not work reliably, use IR or RS-232 control instead.
IMPORTANT — HDMI Cable Length Matters
The manual recommends Premium High-Speed HDMI cables.
| Resolution | Recommended HDMI Cable Length |
| 4K60 | 16ft / 5m |
| 4K30 | 32ft / 10m |
| 1080p60 | 50ft / 15m |
Poor HDMI cables may cause no video, flickering, black screen, HDR issues, ARC issues, HDCP issues, or unstable 4K@60Hz performance.
Ports and Panel Layout
| Port / Indicator | Unit | Function |
| Power LED | Transmitter | Red LED lights when the Transmitter is powered on |
| ARC LED | Transmitter | Lights when ARC is enabled |
| S/PDIF LED | Transmitter | Lights when S/PDIF OUT is outputting audio received from Receiver S/PDIF IN |
| SWITCH Button | Transmitter | Selects audio signal source for S/PDIF OUT and L/R OUT |
| SERVICE Port | Transmitter | Firmware update port |
| DC 24V | Transmitter | Connect included 24V/1A power adapter if powering from Transmitter side |
| HDBT OUT | Transmitter | Connect CAT6 / CAT7 cable to Receiver HDBT IN |
| Link Signal Indicator | Transmitter | Shows connection status between Transmitter and Receiver |
| Data Signal Indicator | Transmitter | Shows HDMI signal / HDCP status |
| HDMI IN | Transmitter | Connect HDMI source device or ARC soundbar / AVR |
| IR IN | Transmitter | Connect IR Receiver cable |
| IR OUT | Transmitter | Connect IR Blaster cable |
| L/R OUT | Transmitter | Connect 3.5mm audio device such as speaker or headphones |
| S/PDIF OUT | Transmitter | Connect optical audio device such as soundbar, AVR, or amplifier |
| RS-232 | Transmitter | Connect RS-232 control device |
| Power LED | Receiver | Lights when the Receiver is powered on |
| ARC LED | Receiver | Lights when ARC is enabled |
| S/PDIF LED | Receiver | Lights when S/PDIF output mode is active |
| SWITCH Button | Receiver | Selects audio signal source for S/PDIF OUT and L/R OUT |
| SERVICE Port | Receiver | Firmware update port |
| DC 24V | Receiver | Connect included 24V/1A power adapter if powering from Receiver side |
| HDBT IN | Receiver | Connect CAT6 / CAT7 cable from Transmitter HDBT OUT |
| Link Signal Indicator | Receiver | Shows connection status between Transmitter and Receiver |
| Data Signal Indicator | Receiver | Shows HDMI signal / HDCP status |
| HDMI OUT | Receiver | Connect HDMI display or ARC TV |
| IR IN | Receiver | Connect IR Receiver cable |
| IR OUT | Receiver | Connect IR Blaster cable |
| S/PDIF IN | Receiver | Connect optical output from TV to send audio to Transmitter |
| RS-232 | Receiver | Connect RS-232 control device |
Step-by-Step Setup
- Connect the HDMI source device to HDMI IN on the Transmitter.
Examples include a Blu-ray player, cable box, streaming device, laptop, desktop PC, HDMI matrix output, DVR, or NVR. - Connect HDBT OUT on the Transmitter to HDBT IN on the Receiver using CAT6 / CAT7 cable.
- Connect HDMI OUT on the Receiver to the TV, monitor, projector, or display.
- Connect the included DC 24V/1A locking power adapter to either the Transmitter or Receiver.
- If using ARC, connect the ARC TV to Receiver HDMI OUT and connect the ARC soundbar / AVR to Transmitter HDMI IN.
- If using S/PDIF audio return, connect the TV optical output to Receiver S/PDIF IN.
- If using audio extraction, connect Transmitter S/PDIF OUT or L/R OUT to the soundbar, AVR, amplifier, speaker, or audio system.
- If using IR control, connect the IR Receiver and IR Blaster cables based on the direction of control needed.
- If using RS-232, connect the Phoenix connector wiring to both units.
- Power on the HDMI source, display, Transmitter, Receiver, and connected audio/control devices.
- Use the SWITCH button to select the required audio output mode.
- Check the Power, ARC, S/PDIF, Link Signal, and Data Signal indicators.
- Test video, audio, ARC, S/PDIF audio return, IR, RS-232, and CEC.
Setup for ARC TV to ARC AVR in a Media Closet
Use this setup when the TV is near the Receiver and the AVR or soundbar is near the Transmitter.
- Connect the TV ARC HDMI port to HDMI OUT on the Receiver.
- Connect the ARC port of the AVR or soundbar to HDMI IN on the Transmitter.
- Connect HDBT OUT on the Transmitter to HDBT IN on the Receiver using CAT6 / CAT7 cable.
- Connect power to either the Transmitter or Receiver.
- Enable ARC in the TV settings.
- Press the SWITCH button on the Transmitter and Receiver until the ARC LED lights on both ends.
- Set the TV audio format to a compatible format.
- Test TV audio through the soundbar or AVR.
CAT Cable Requirement — Critical
Use high-quality CAT6 / CAT7 cable.
| Resolution | Cable Type | Maximum Distance |
| 4K@60Hz 4:4:4 | CAT6 / CAT7 | Up to 132ft / 40m |
| 1080p@60Hz | CAT6 / CAT7 | Up to 230ft / 70m |
Poor CAT cable may cause:
- No picture
- Flickering
- Black screen
- Poor link signal indicator status
- HDBaseT link failure
- Audio dropouts
- ARC issues
- IR control issues
- RS-232 issues
- 4K@60Hz not working
Use direct cable runs whenever possible.
HDMI Cable Requirement — Critical
Use Premium High-Speed HDMI cables.
| Resolution | Recommended HDMI Cable Length |
| 4K60 | Up to 16ft / 5m |
| 4K30 | Up to 32ft / 10m |
| 1080p60 | Up to 50ft / 15m |
For 4K@60Hz, use HDMI cables rated for 18Gbps.
For ARC, use HDMI cables that support ARC.
Poor HDMI cables may cause:
- No signal
- Flickering
- Black screen
- ARC not detected
- No TV audio
- Audio dropouts
- HDCP handshake issues
Power Requirement — Critical
The UHD-EXB132AR-K uses one DC 24V/1A locking power adapter.
| Unit | Power Requirement |
| Transmitter | DC 24V/1A, or powered by PoC |
| Receiver | DC 24V/1A, or powered by PoC |
Only one side needs to be powered because PoC sends power to the other unit through the CAT cable.
Understanding the Transmitter
The Transmitter is installed near the HDMI source, soundbar, AVR, or equipment rack.
It has:
- HDMI IN
- HDBT OUT
- L/R OUT
- S/PDIF OUT
- IR IN and IR OUT
- RS-232
- SERVICE firmware port
- DC 24V power input
- Power, ARC, and S/PDIF LEDs
- Audio SWITCH button
The Transmitter sends HDMI video over HDBaseT and can output extracted or returned audio through L/R OUT and S/PDIF OUT.
Understanding the Receiver
The Receiver is installed near the TV, monitor, projector, or remote display.
It has:
- HDBT IN
- HDMI OUT
- S/PDIF IN
- IR IN and IR OUT
- RS-232
- SERVICE firmware port
- DC 24V power input
- Power, ARC, and S/PDIF LEDs
- Audio SWITCH button
The Receiver outputs HDMI to the display and can send ARC or optical audio back to the Transmitter side.
Understanding ARC Audio Return
ARC allows TV audio to return from the Receiver side back to the Transmitter side.
This is useful when:
- The TV is at the display location
- The soundbar or AVR is in a media closet
- A single CAT cable is used between the two locations
- The user wants TV app audio or TV audio sent back to the audio system
ARC must be enabled on the TV and the ARC LEDs should be lit on both units.
Understanding S/PDIF Audio Return
S/PDIF audio return allows optical audio from the TV to be sent back to the Transmitter side.
Typical setup:
| Location | Connection |
| Display side | TV optical output to Receiver S/PDIF IN |
| Source side | Transmitter S/PDIF OUT to soundbar / AVR / amplifier |
Use this when optical audio return is preferred or when ARC is not being used.
Understanding Audio Extraction
Audio extraction allows the Transmitter to output audio separately from the HDMI signal.
| Output | Best Use |
| L/R OUT | Analog stereo audio to powered speakers or amplifier |
| S/PDIF OUT | Optical digital audio to AVR, soundbar, or audio receiver |
For L/R OUT, use PCM 2.0 audio.
Understanding Bi-Directional IR
Bi-directional IR lets remote control signals travel both ways through the extender.
Use the IR Receiver cable where the remote control will be pointed.
Use the IR Blaster cable near the device being controlled.
IR remote working distance is listed as:
| IR Receiver Angle | Working Distance |
| ±45° | 0–5m |
| ±90° | 0–8m |
Do not swap IR Receiver and IR Blaster cables because their pin definitions are different.
Understanding RS-232 Pass-Through
RS-232 pass-through lets command signals travel between the Transmitter and Receiver.
Use RS-232 for:
- Projector control
- Display control
- Matrix control
- Automation system control
- Control processor integration
Understanding the Link and Data Signal Indicators
| Indicator | Status | Meaning |
| Link Signal | On | Good connection between Transmitter and Receiver |
| Link Signal | Flashing | Weak or poor connection |
| Link Signal | Off | No connection |
| Data Signal | On | HDMI signal with HDCP is being sent |
| Data Signal | Flashing | HDMI signal without HDCP |
| Data Signal | Off | No HDMI signal detected |
Use these indicators to troubleshoot CAT cable, HDBaseT link, HDCP, and HDMI input issues.
Supported Video and Audio
The UHD-EXB132AR-K supports video formats including:
| Supported Video |
| 4K@50/60Hz 4:4:4 |
| 4K@50/60Hz 4:2:0 |
| 4K@30Hz 4:4:4 |
| 2K@30/50/60Hz |
| 1080p |
| 1080i |
| 720p |
| 720i |
| 480p |
| 480i |
| PC resolutions including 1920 x 1200 |
| HDR10 |
| HDR10+ |
| Dolby Vision |
Supported audio formats include:
| Audio Output | Supported Format |
| HDMI Audio | PCM 2.0 / 5.1 / 7.1CH, Dolby Digital / Plus / EX, Dolby TrueHD, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD |
| L/R Audio | PCM 2.0CH |
| Optical Audio | LPCM 2.0, Dolby Digital / Plus, DTS |
Supported Technical Specifications
| Specification | Support |
| HDMI Version | HDMI 2.0b |
| HDCP Version | HDCP 2.2 / HDCP 1.x |
| Video Bandwidth | 18Gbps |
| Maximum Resolution | 4K@60Hz 4:4:4 |
| 4K Distance | 132ft / 40m |
| 1080p Distance | 230ft / 70m |
| CAT Cable | CAT6 / CAT7 |
| HDBaseT | Supported |
| ARC | Supported |
| CEC | Pass-through supported |
| Audio Extraction | Supported |
| IR Control | Bi-directional IR |
| RS-232 | Pass-through supported |
| PoC | Supported |
| HDMI Audio | PCM 2.0 / 5.1 / 7.1CH, Dolby Digital / Plus / EX, Dolby TrueHD, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD |
| Optical Audio | LPCM 2.0, Dolby Digital / Plus, DTS |
| L/R Audio | PCM 2.0CH |
| Power Supply | DC 24V/1A locking connector |
| Power Consumption | 13W max |
| Housing | Metal enclosure |
| Color | Black |
| Dimensions | 165mm x 88.3mm x 20mm |
| Weight | Transmitter 170g / 5.99oz; Receiver 165g / 5.82oz |
| Operating Temperature | 0°C to 40°C / 32°F to 104°F |
| Storage Temperature | -20°C to 60°C / -4°F to 140°F |
| Operating Humidity | 20%–80% RH, non-condensing |
| Storage Humidity | 10%–90% RH, non-condensing |
What Source Devices Is the UHD-EXB132AR-K Compatible With?
The UHD-EXB132AR-K is compatible with HDMI source devices such as:
- Blu-ray players
- DVD players
- Cable boxes
- Streaming devices
- Media players
- Desktop PCs
- Laptops with HDMI output
- DVRs
- NVRs
- HDMI matrix outputs
- HDMI switch outputs
- AV receivers with HDMI output
For ARC use, the connected TV and AVR / soundbar must support ARC.
What Displays Is the UHD-EXB132AR-K Compatible With?
The UHD-EXB132AR-K can connect to HDMI displays such as:
- 4K TVs
- ARC-enabled TVs
- 1080p TVs
- Projectors
- Monitors
- Commercial displays
- Conference room displays
- Classroom displays
- Home theater displays
For 4K@60Hz, the display must support 4K@60Hz input.
For ARC audio return, the TV must support HDMI ARC.
What Audio Devices Is the UHD-EXB132AR-K Compatible With?
The UHD-EXB132AR-K can connect to audio devices such as:
- ARC soundbars
- ARC AV receivers
- Optical soundbars
- Optical AV receivers
- Amplifiers
- Powered speakers
- Audio processors
- 2.0 speaker systems
Use S/PDIF OUT for optical audio and L/R OUT for analog stereo audio.
Frequently Asked Questions
Q: What is the OREI UHD-EXB132AR-K used for?
A: The UHD-EXB132AR-K is used to extend 4K HDMI video, HDMI audio, ARC audio return, IR, RS-232, and CEC over a single CAT6 / CAT7 cable.
Q: Does the UHD-EXB132AR-K support 4K@60Hz?
A: Yes. It supports up to 4K@60Hz 4:4:4.
Q: Does it support 8K?
A: No. It supports up to 4K@60Hz.
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 2.0b.
Q: What HDCP version does it support?
A: It supports HDCP 2.2 and HDCP 1.x.
Q: What video bandwidth does it support?
A: It supports 18Gbps video bandwidth.
Q: How far can it extend 4K@60Hz?
A: It extends 4K@60Hz 4:4:4 up to 132ft / 40m.
Q: How far can it extend 1080p@60Hz?
A: It extends 1080p@60Hz up to 230ft / 70m.
Q: What CAT cable should I use?
A: Use CAT6 / CAT7 cable.
Q: Can I connect it through a network switch?
A: No. The HDBT OUT and HDBT IN ports should be connected directly with CAT cable.
Q: Is this AV over IP?
A: No. This is an HDBaseT extender, not an AV-over-IP extender.
Q: Does it support PoC?
A: Yes. Power over Cable is supported.
Q: Do both units need separate power adapters?
A: No. Only one unit needs the included DC 24V/1A locking power adapter. The other unit is powered through the CAT cable.
Q: Can the power adapter connect to either Transmitter or Receiver?
A: Yes. The power adapter can be connected at either end.
Q: Does it support ARC?
A: Yes. ARC support allows audio from an ARC-enabled TV to return to a soundbar or amplifier at the Transmitter side.
Q: How do I connect an ARC TV to an ARC AVR in a media closet?
A: Connect the ARC port of the TV to HDMI OUT on the Receiver, and connect the ARC port of the AVR to HDMI IN on the Transmitter. Press the SWITCH button on both units until the ARC LED lights on both ends.
Q: Why am I not getting ARC audio from my soundbar or AVR?
A: Check that ARC is enabled in the TV settings, the ARC LED is lit on both units, the TV audio format is compatible, and the HDMI cables support ARC.
Q: Does it support optical audio return?
A: Yes. The Receiver has S/PDIF IN, and the Transmitter has S/PDIF OUT.
Q: Does it support analog audio output?
A: Yes. The Transmitter has L/R OUT for 3.5mm analog stereo audio.
Q: What audio format does L/R OUT support?
A: L/R OUT supports PCM 2.0CH.
Q: What optical audio formats are supported?
A: Optical audio supports LPCM 2.0, Dolby Digital / Plus, and DTS.
Q: What HDMI audio formats are supported?
A: HDMI supports PCM 2.0 / 5.1 / 7.1CH, Dolby Digital / Plus / EX, Dolby TrueHD, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, and DSD.
Q: Does it support Dolby Atmos?
A: Dolby Atmos is not listed in the manual. Use the listed supported audio formats for compatibility.
Q: Does it support Dolby Vision?
A: Yes. Dolby Vision is supported.
Q: Does it support HDR10 or HDR10+?
A: Yes. HDR10 and HDR10+ are supported.
Q: Does it support CEC?
A: Yes. CEC pass-through is supported.
Q: Does it support IR control?
A: Yes. It supports bi-directional IR.
Q: Which IR cable goes where for source control?
A: Connect the IR Receiver to Receiver IR IN and the IR Blaster to Transmitter IR OUT.
Q: Which IR cable goes where for display control?
A: Connect the IR Receiver to Transmitter IR IN and the IR Blaster to Receiver IR OUT.
Q: Does it support RS-232?
A: Yes. RS-232 pass-through is supported.
Q: What should I do if there is no video?
A: Check power, HDMI source output, HDMI cables, CAT6 / CAT7 cable, HDBT connection, and the Link Signal and Data Signal indicators.
Q: What should I do if the Link Signal indicator is flashing?
A: The connection between Transmitter and Receiver is weak or poor. Check CAT cable quality, terminations, cable length, and direct connection.
Q: What should I do if the Link Signal indicator is off?
A: The Transmitter and Receiver are not connected. Check the CAT cable and confirm HDBT OUT is connected to HDBT IN.
Q: What should I do if the Data Signal indicator is off?
A: No HDMI signal is detected. Check the HDMI source, HDMI cable, and source output setting.
Q: What should I do if 4K@60Hz does not work?
A: Use Premium High-Speed HDMI cables, use high-quality CAT6 / CAT7 cable within 132ft / 40m, confirm the source and display support 4K@60Hz, and test with 1080p first.
Q: What should I do if audio output does not work?
A: Use the SWITCH button to select the correct audio source, check the ARC and S/PDIF LEDs, and set the source or TV audio format to a compatible format.
Q: What should I do if IR control does not work?
A: Confirm the IR Receiver and IR Blaster are connected in the correct direction, and place the IR Blaster near the device IR sensor.
Q: What should I do if RS-232 does not work?
A: Check Phoenix connector wiring and confirm the controlled device and control system use compatible RS-232 settings.
Q: Does the UHD-EXB132AR-K need external power?
A: Yes. Connect the included DC 24V/1A locking power adapter to either the Transmitter or Receiver.
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