Orei BK-21A User manual

8K HDMI
2x1 Switcher
USER MANUAL
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BK-21A

Table of
Contents
Introduction 04
Features 05
Package Contents 05
Specifications 06
Operation Controls and Functions 08
IR Remote 10
Application Example 11
Thank you for purchasing this product. For optimum performance and safety, please
read these instructions carefully before connecting, operating or adjusting this prod-
uct. Please keep this manual for future reference.
page 02
Thank you for purchasing this product
This product contains sensitive electrical components that may be damaged by
electrical spikes, surges, electric shock, lightning strikes, etc. Use of surge protection
systems is highly recommended in order to protect and extend the service life of
your equipment.
Surge protection device recommended

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below - www.orei.com/register
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page 03

This 8K HDMI 2x1 Switcher can switch any of the two HDMI source signals to one
HDMI display. It supports video resolution up to 8K@60Hz 4:2:0. It supports ad-
vanced EDID management and audio de-embedding function (output through
the optical and analog port). This multi-functional product can be widely applied
in scenarios of demonstration, video conference, multimedia teaching and other
occassions requiring for big-screen demonstration.
page 04
Introduction

1. HDMI 2.1 and HDCP 2.3 compliant
2. Support 40Gbps video bandwidth
3. Support video resolution up to 8K@60Hz 4:2:0 10bit, 8K@30Hz 4:4:4
10bit, 4K@120Hz 4:4:4 10bit
4. VRR, FVA, ALLM supported
5. Support HDR, HDR10, HDR10+, Dolby Vision, HLG pass through
6. Support HDMI audio formats: LPCM, Dolby Digital/Plus/EX, Dolby True
HD, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD
7. Built-in Equalizer, Retiming and Driver
8. Advanced EDID management
9. Support audio de-embedding function (output through the optical
and analog port)
10. Support IR remote control and front panel button switching
11. Compact design for easy and flexible installation
Package Contents
1. 8K HDMI 2x1 Switcher 1pcs
2. IR Remote 1pcs
3. 5V/2A Multinational Power Supply 1pcs
4. User Manual 1pcs
page 05
Features

Technical
HDMI Compliance HDMI 2.1
HDCP Compliance HDCP 2.3
Video Bandwidth 40Gbps
Video Resolution Up to 8K@60Hz 4:2:0 10bit, 8K@30Hz 4:4:4 10bit,
4K@120Hz 4:4:4 10bit
Color Depth 8-bit, 10-bit, 12-bit
Color Space RGB, YCbCr 4:4:4 / 4:2:2,YUV 4:2:0
HDR HDR, HDR10, HDR10+, Dolby Vision, HLG pass through
Audio Formats
HDMI input/output:
LPCM, Dolby Digital/Plus/EX, Dolby True HD, DTS, DTS-EX,
DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD
Auido de-embedding output:
Optical: LPCM 2/5.1 CH, Dolby Digital 2/5.1 CH, DTS 2/5.1 CH
Analog: PCM 2.0
ESD Protection Human body model — ±8kV (Air-gap discharge) &±4kV
(Contact discharge)
Connection
Input 2 × HDMI IN [Type A, 19-pin female]
Output 1 × HDMI OUT [Type A, 19-pin female]
1 × OPTICAL [S/PDIF]
1 × L/R [3.5mm Stereo Mini-jack]
Control 1 × SERVICE [Micro USB, Update port]
page 06
Specications

page 07
Specications
Mechanical
Housing Metal Enclosure
Silkscreen Color Black
Dimensions 145mm (W) × 68mm (D) × 17mm (H)
Weight 268 g
Operating Temperature 0°C ~ 40°C / 32°F ~ 104°F
Storage Temperature -20°C ~ 60°C / -4°F ~ 140°F
Relative Humidity 20~90% RH (Non-condensing)
Power Consumption (Max) 5.25W (Max)
Power Supply
Input: AC100 - 240V 50/60Hz,
Output: DC 5V/2A
(US/EU standards, CE/FCC/UL certified)
Recommended HDMI Cable
Video Resolution 8K 4K60 4K24 1080P
HDMI Cable Type Ultra HDMI 2.1 HDMI 2.0 HDMI 1.4 HDMI 1.4
HDMI Cable Length
(HDMI IN / OUT)
3m/10ft 8m/26ft 12m/39ft 15m/49ft
The use of “Premium High Speed HDMI” cable is highly recommended.

IN
Operation Controls
and Functions
page 08
No. Name Function Description
1. IR Window IR input signal receiving window.
2. POWER LED
The power LED lights in green when the device is working,
and red when the device is in standby.
3.
IN LED
(1~2)
When the HDMI IN 1/2 port is selected as the signal source
input channel, the corresponding green LED will be on.
4. OUT LED
When the HDMI OUT port connects a display device and
outputs signal, the green LED will be on.
5. AUTO LED
When the auto switching function (switch to the corre-
sponding signal input channel when the signal source is
connected.) is turned on, the green AUTO LED will be on.
6. SWITCH button
Used to select signal source. Pressing this button will allow
the device to switch any of the two HDMI input signals and
distribute it to two displays simultaneously.
Front Panel
Rear Panel
IN OUT AUTO
EDIDSWITCH SERVICE
1
0
237
18
5
46
L/R DC 5V
OPTICAL
OUT
IN 1 IN 2
13
912
11
10
1 2

page 09
Operation Controls
and Functions
No. Name Function Description
7. EDID DIP
switch
Use the DIP switch to set EDID.
111 - Copy OUT port sink EDID (as factory default)
110 - HDMI 1080p@60Hz, Audio 2ch PCM
101 - HDMI 4K@60Hz 4:4:4, Audio 2ch PCM, HDR
100 - HDMI 4K@60Hz 4:4:4,
Audio 5.1ch PCM/DTS/DOLBY, HDR
011 - HDMI 4K@60Hz 4:4:4,
Audio 7.1ch PCM/DTS/DOLBY/HD, HDR
010 - HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4,
4K@120Hz 4:4:4, Audio 2ch PCM, HDR
001 - HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4,
4K@120Hz 4:4:4, Audio 5.1ch PCM/DTS/DOLBY, HDR
000 - HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4,
4K@120Hz 4:4:4, Audio 7.1ch PCM/DTS/DOLBY/HD,
HDR
8. SERVICE Firmware update and debug port.
9. IN port (1~2) HDMI signal input port, connecting to HDMI source
device such as DVD or PS5 with an HDMI cable.
10. OUT port HDMI signal output port, connecting to HDMI display
device such as TV or Monitor with an HDMI cable.
11. OPTICAL Optical fiber audio output port.
12. L/R Analog audio output port.
13. DC 5V DC 5V/2A Power input port.

page 10
IR Remote
: Press this button to cyclically switch HDMI signal
source IN 1/2 to the OUT port.
1/2 :Press 1/2 button to select HDMI signal source IN
1/2 to the OUT port.
: Power on the product or set it to standby mode.
OUTPUT

Application
Example
page 11
L/R DC 5V
OPTICAL
OUT
IN 1IN 2
DVD or Blu-ray Player
Power Supply
PC
8K TV
2.0 Speakers
Audio Amplifier

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