REI UHDS-402A User manual

4x2 HDMI 2.0 Matrix Switcher
with Audio Extract
USER MANUAL
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UHDS-402A

page 2
Table of Contents
Introduction 04
Features 05
Package Contents 05
Specifications 06
Operation Controls and Functions 08
IR Remote 11
Application Example 12
FAQ 12
Thank you for purchasing this product. For optimum performance and
safety, please read these instructions carefully before connecting, operating
or adjusting this product. Please keep this manual for future reference.
page 02
Thank you for purchasing this product
This product contains sensitive electrical components that may be dam-
aged 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

page 03
Registration Page
Please Activate your warranty by registering our product through the
link below - https://www.orei.com/pages/warranty-registration
Technical Support
Need Help?
Our experienced Technical Support Team is here for you to answer
your questions, give technical advice or help troubleshoot your project
to get you installed on time and on budget. Call, email or chat with us
now.
OREI Live Technical Support Hours
US team (US/Canada/Mexico): Monday-Friday, 9 a.m. - 6 p.m. Central
Support Number - 877-290-5530

page 04
The UHDS-402A Switcher can switch any of these four HDMI sourc-
es to two HDMI displays. It supports resolution up to 4K2K@60Hz
YCbCr 4:4:4 and HDCP 2.2. It can extract HDMI source device audio
to optical and analog L/R output. It supports 4K->1080P downscale
function if source is 4K but TV only supports up to 1080P. It also
supports ARC and EDID (AUTO/COPY/STD) function. With its 18Gbps
bandwidth and the additional features with latest HDMI standards.
Flexible control via front panel buttons and IR remote.
Introduction

page 05
Features
1. UHDS-402A 1pcs
2. 12V/1A Locking Power Adapter 1pcs
3. Mounting Ears 2pcs
4. IR Remote 1pcs
5. User Manual 1pcs
Package Contents
1. HDMI 2.0, HDCP 2.2 / HDCP 1.4 and DVI 1.0 compliant
2. Supports 4 HDMI inputs and 2 HDMI outputs
3. Video resolution up to 4K2K@60Hz YCbCr 4:4:4
4. Supports 18Gbps uncompressed bandwidth on all HDMI
5.
Supports Dolby Vision, HDR 10+, HLG
6. Supports extract HDMI input source device audio of OUT A or
OUT B to optical and analog L/R output
7. OUT A and OUT B support 4K to 1080P downscale function
8. Supports ARC (Audio Return Channel) function
9. Supports advanced EDID management including AUTO, COPY
and STD
10. Control is via front panel buttons and IR remote

page 06
Specications
Technical
HDMI Compliance HDMI 2.0
HDCP Compliance HDCP 2.2 and HDCP 1.4
Video Bandwidth 18Gbps
Video Resolution Up to 4K2K@50/60Hz (YCbCr 4:4:4), 4K2K@30Hz. All HDMI
3D TV format, etc.
Color Depth 8-bit, 10-bit, 12-bit [1080P, 4K30Hz, 4K60Hz (YCbCr 4:2:0)]
8-bit [4K60Hz (YCbCr4:4:4)]
Color Space RGB, YCbCr 4:4:4,YCbCr 4:2:2, YCbCr 4:2:0
HDMI Audio
Formats
PCM 2.0/5.1/7.1CH, Dolby Digital/Plus/EX, Dolby True HD, DTS,
DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD
Optical Audio
Formats PCM 2.0, Dolby Digital / Plus, DTS
L/R Audio Format PCM 2.0CH
(Note: If ARC function is turned on, the audio port will mute.)
ESD Protection Human body model — ±8kV (Air-gap discharge) &
±4kV (Contact discharge)
Connections
Input Ports 4 × HDMI Type A [19-pin female]
Output Ports
2 × HDMI Type A [19-pin female]
1 × L/R audio out [3.5mm Stereo Mini-jack]
1 × OPTICAL audio out [S/PDIF]

page 07
Mechanical
Housing
Metal Enclosure
Color
Black
Dimensions 251mm[W] × 105mm[D] × 20mm[H]
Weight 620g
Power Supply Input: AC 100~240V 50/60Hz
Output: DC 12V/1A
Power Consumption 3.8W (Max)
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)
Specications

page 08
Operation Controls
and Functions
No. Name Function Description
1.
Power LED
The blue LED will be on when the product is connected
power supply.
2. IR
IR receiver window. It only receives IR remote signal from this
product.
3.
OUT A button
and LED
Press the OUT A button to select an input source to OUT
A output, and the corresponding blue LED will be on.
AUTO LED
The blue AUTO LED will be on and the AUTO function will
be turned on when you press the OUT A button up to 3
seconds. Press the OUT A button up to 3 seconds again
will turn off the AUTO function.
AUTO function: Detect input signal source. The AUTO
function is turned on, if an or a few HDMI IN ports are
connected source device. OUT A port will output the signal
from the last connected input source.
4. OUT B button
and LED
Press the OUT B button to select an input source to OUT
B output, and the corresponding blue LED will be on.
Front Panel

page 09
No. Name Function Description
4. AUTO LED
The blue AUTO LED will be on and the AUTO function will
be turned on when you press the OUT B button up to 3
seconds. Press the OUT B button up to 3 seconds again
will turn off the AUTO function.
AUTO function: Detect input signal source. The AUTO func-
tion is turned on, if an or a few HDMI IN ports are connected
source device. OUT B port will output the signal from the last
connected input source.
5. AUDIO
button
▪Press AUDIO button to select extract the input source
audio from OUT A port or OUT B port to optical and analog
L/R output, the corresponding blue LED will be on.
▪If ARC function is turned on, press AUDIO button to select
return the audio signal from OUT A or OUT B display device
to optical output, the corresponding blue LED will be on. At
this time, the analog L/R port is mute.
6. 4K->1080P
button
Press the button to select OUT A or OUT B 4k->1080P
downscale fucntion, and the corresponding blue LED will
be on. For example, if source is 4K but TV only supports
1080P, at this time the input resolution with 4K will be
downscaled to 1080P to TV output.
7. ARC button Turn on/off ARC function. The blue ARC LED will be on
when you turn on the ARC function.
Operation Controls
and Functions

page 10
Operation Controls
and Functions
No. Name Function Description
1. HDMI IN port HDMI input ports, connected to HDMI source device such
as DVD or PS4 with an HDMI cable.
2. HDMI OUT A
/ OUT B port
HDMI output ports, connected to HDMI display device
such as TV or Projector with an HDMI cable.
3. OPTICAL /
L/R port
Connect to audio output device such as amplifier or
speaker with optical and analog audio cable.
4. EDID AUTO /
COPY / STD
AUTO: Compare with Out A and Out B display device’s
EDID information, and then sending the best EDID infor-
mation to source device of Out A and Out B. The source
device of Out A and Out B will send the EDID information
again to Out A and Out B display device output.
COPY: Copy Out A display device’s EDID information to
source device of Out A and Out B. Then the source device
of Out A and Out B will send the EDID information again to
Out A and Out B display device output.
STD: Out A and Out B display device output default 1080P.
5. SERVICE port Firmware update port.
6. DC 12V Plug in 12V/1A adapter to AC wall outlet for power supply.
Rear Panel

page 11
IR Remote
Power on the product or set it to standby
mode.
Output A / Output B
1/2/3/4
Select input source signal to Out A port
output, the corresponding blue LED on the
front panel will be on.
◄ ►
Select the last or next input source signal to
OUT A port output, the corresponding blue
LED on the front panel will be on.
AUTO
Turn on or off AUTO function. The Auto
function is turned on, if an or a few HDMI IN
ports are connected to source device, Out
A port will output the signal from the last
connected input source.
4K/HD
Select Out A 4k->1080P downscale fucntion.
For example, if source is 4K but TV only
supports 1080P, at this time the input
resolution with 4K will downscale to 1080P
to TV output
Audio function
ARC Turn on/off ARC function.
Audio
A/B
▪If ARC function is turned on, press Audio
A or B button to select return the audio
signal from Out A or Out B display device to
optical port (TOSLINK) output. At this time,
the analog L/R port (Audio out) is mute.
▪If ARC function is turned off, press Audio
A or B button to select extract the input
source audio from Out A port or Out B port
to optical port (TOSLINK) and analog L/R
port (Audio out) output.

page 12
Application Example
Q: Does this product require an HDMI line length for the connection
interface?
A: According to HDMI line length test, HDMI input / output with 4K60Hz
YCbCr 4:4:4 is the longest line length up to 8m / 3m.
The use of “Premium High Speed HDMI” cable is highly recommended.
IR remote sends signal distance for 0~7 meters, and angle is plus-mi-
nus 45 degrees.
FAQ

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www.orei.com
4x2 HDMI 2.0 Matrix Switcher
with Audio Extractor
UHDS-402A
Table of contents
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