OREI BK-21AC 8K 2x1 HDMI 2.1 Switch with Audio Extractor User Manual

1. Introduction

The OREI BK-21AC is an advanced 8K 2x1 HDMI 2.1 Switch designed to seamlessly connect two HDMI 2.1 source devices to a single display. This device supports high-resolution video up to 8K@60Hz and 4K@120Hz, making it ideal for next-generation gaming consoles, 8K Blu-ray players, and high-refresh-rate monitors. It features HDR10+ and Dolby Vision pass-through, HDCP 2.3 compliance, and integrated optical and analog audio extraction capabilities. Flexible control options include manual button, infrared (IR) remote, and intelligent auto-switching.

2. Package Contents

Please verify that all items listed below are included in your package:

• 1x OREI BK-21AC 8K 2x1 HDMI Switch
• 1x IR Remote Control (2 AAA batteries included)
• 1x 5V/2A Power Supply
• 1x User Manual

Note: HDMI cables are not included and must be purchased separately.

Image: The OREI BK-21AC switch, its remote control, power adapter, and user manual, illustrating the complete package contents.

3. Product Overview

3.1 Front Panel

Image: Front view of the OREI BK-21AC HDMI Switch, showing the USB port, indicator lights, select button, EDID switches, and the included IR remote.

• USB Port: For firmware updates (consult OREI support before updating).
• Power Indicator: Illuminates when the device is powered on.
• Output Indicator: Illuminates when an HDMI display is connected to the output.
• Input 1/2 Indicators: Show which HDMI input is currently selected.
• Auto Indicator: Illuminates when auto-switching mode is active.
• IR Indicator: Illuminates when an IR signal is received.
• IR Receiver Window: Receives signals from the IR remote control.
• Select Button: Manually switches between HDMI Input 1 and Input 2.
• EDID Switches: Dip switches for advanced EDID management (refer to section 6 for details).

3.2 Rear Panel

Image: Rear view of the OREI BK-21AC HDMI Switch, highlighting the input and output HDMI ports, audio output options, and DC 5V power input.

• INPUT 1/2: HDMI 2.1 input ports for connecting source devices (e.g., game consoles, Blu-ray players).
• OUTPUT: HDMI 2.1 output port for connecting to a display (e.g., TV, monitor, projector).
• Audio Out (3.5mm): Analog stereo L/R audio output.
• SPDIF Out (Optical): Digital optical audio output.
• DC 5V: Power input port for the included 5V/2A power supply.

4. Setup and Connection

Follow these steps to set up your OREI BK-21AC HDMI Switch:

1. Connect HDMI Sources: Use high-quality HDMI 2.1 cables to connect your two source devices (e.g., game console, PC, Blu-ray player) to the INPUT 1 and INPUT 2 ports on the rear of the switch.
2. Connect HDMI Display: Use a high-quality HDMI 2.1 cable to connect your display (e.g., 8K TV, monitor) to the OUTPUT port on the rear of the switch.
3. (Optional) Connect Audio System: If you wish to extract audio, connect your soundbar, AV receiver, or stereo system to either the Audio Out (3.5mm) port for analog stereo or the SPDIF Out (Optical) port for digital audio.
4. Connect Power: Plug the included 5V/2A power supply into the DC 5V port on the rear of the switch, then plug the adapter into a wall outlet. The Power Indicator LED on the front panel will illuminate.

Image: A visual guide demonstrating how to connect two HDMI source devices (PC and Blu-ray player) to the OREI BK-21AC switch, which then outputs video to an 8K UHD TV and extracts audio to external speakers or headphones.

Image: This graphic emphasizes the 'Plug & Play' nature of the OREI BK-21AC, showing its ability to easily switch between two media sources and output to a single HDMI display.

5. Operating Instructions

5.1 Switching Inputs

You can switch between the two HDMI inputs using one of the following methods:

• Manual Button: Press the 'Select' button on the front panel of the switch to cycle between Input 1 and Input 2.
• IR Remote Control: Use the included IR remote control to directly select Input 1 or Input 2, or to toggle between them. Ensure the remote is pointed towards the IR Receiver Window on the front panel.
• Auto-Switching Mode: The switch can automatically detect and switch to an active HDMI source. If a new source is powered on, the switch will prioritize it. If the current active source is turned off, it will switch to the next available active source. The 'Auto' indicator will light up when this mode is active.

Image: This graphic highlights the ease of switching inputs using either the front panel button or the included IR remote control.

6. Audio Extraction

The OREI BK-21AC can extract audio from the HDMI signal and output it via dedicated ports:

• Analog Audio Out (3.5mm): Provides stereo L/R audio output. This output is limited to 2-channel audio.
• SPDIF Out (Optical): Provides digital optical audio output. This output is limited to 5.1-channel audio.

Supported audio formats include LPCM, Dolby Digital/Plus/EX, TrueHD, DTS, DTS-EX, DTS-96/24, DTSHighRes, DTS-HD Master Audio, and DSD. Ensure your source device is configured to output audio in compatible formats for these ports. This device does not downmix 7.1Ch to 5.1 or 2Ch, and it does not support HBR audio.

7. EDID Settings

The EDID (Extended Display Identification Data) switches on the front panel allow you to manually configure the video and audio capabilities reported to the source devices. This can be useful for resolving compatibility issues or forcing specific resolutions/audio formats. Refer to the detailed instructions in the included user manual for specific dip switch configurations and their corresponding EDID modes.

8. Specifications

Image: A visual representation of the OREI BK-21AC's technical specifications, including its compact dimensions and lightweight metal housing.

• Model: BK-21AC
• HDMI Version: HDMI 2.1
• HDCP Version: HDCP 2.3
• Video Resolution: Up to 8K@60Hz, 4K@120Hz, 1080p@240Hz
• Video Bandwidth: 48Gbps
• HDR Support: HDR, HDR10, HDR10+, Dolby Vision, HLG
• Audio Formats: LPCM, Dolby Digital/Plus/EX, TrueHD, DTS, DTS-EX, DTS-96/24, DTSHighRes, DTS-HD Master Audio, DSD
• Audio Outputs: 3.5mm Stereo L/R, SPDIF Optical
• Dimensions (L x W x H): 4.8 x 2.78 x 0.73 inches (122 x 70 x 18.5 mm)
• Weight: 6.8 ounces (192g)
• Housing: Metal
• Power Supply: DC 5V/2A

9. Troubleshooting

If you encounter issues, please refer to the following common troubleshooting steps:

• No Video/Audio: Ensure all HDMI cables are securely connected and are HDMI 2.1 compliant. Verify the power adapter is connected and the power indicator is on. Try a different HDMI cable or port.
• Intermittent Signal: Check cable quality and length. Long or low-quality HDMI cables can cause signal degradation at high resolutions. Ensure proper ventilation to prevent overheating.
• Resolution/HDR Issues: Verify your source device and display support the desired resolution and HDR format. Adjust EDID settings using the dip switches if necessary (refer to section 7 and the full manual).
• Audio Extraction Problems: Confirm your audio system is correctly connected to the analog or optical output. Check that your source device is outputting a compatible audio format for the selected output.
• Remote Control Not Working: Ensure batteries are correctly inserted and charged. Point the remote directly at the IR Receiver Window.

For further assistance, please contact OREI support.

10. Warranty and Support

The OREI BK-21AC is backed by OREI’s 1-year warranty and lifetime support. For any technical inquiries, troubleshooting, or warranty claims, please contact OREI customer service. Do not attempt to update firmware without consulting OREI support to avoid potential damage to the device.

11. Safety Information

• Ensure proper ventilation around the device to prevent overheating.
• Use only the provided power adapter.
• Do not expose the device to water, moisture, or extreme temperatures.
• Avoid dropping or subjecting the device to strong impacts.
• This device is intended for indoor use only.