REI ARC-EX300-K User manual
page 1
HDMI ARC & S/PDIF Audio Extender
(150m) over CAT Cable
USER MANUAL
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ARC-EX300-K
page 2
Table of Contents
Introduction 04
Features 05
Package Contents 05
Specifications 06
Operation Controls and Functions 08
Application Example 10
Thank you for purchasing this product. For optimum performance and
safety, please read these instructions carefully before connecting, operat-
ing 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 an-
swer 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.
Support Number - 877-290-5530
Caution
The product requires the use of UTP connectors. Please connect
in direct interconnection method and do not cross connect.
page 04
The ARC-EX300-K can transmit HDMI ARC and S/PDIF audio
signals up to a distance of 150m/492ft (96kHz) or 90m/295ft
(192kHz) over a single CAT cable. CEC pass-through between
HDMI ARC input port and ARC output port. For TVs without an
ARC port, the extender provides an independent S/PDIF audio
pass-through channel to transmit S/PDIF audio from the S/PDIF
IN port on the Transmitter to the S/PDIF OUT port on the Receiv-
er. This is a fantastic plug and play solution for sending HDMI
ARC and S/PDIF audio from a TV back to an amplifier, AVR or a
multi-room audio system.
Introduction
page 05
Features
1. ARC-EX300-K (Transmitter) 1pcs
2. ARC-EX300-K (Receiver) 1pcs
3. USB Shielded Cable (USB-A to Micro USB, 1m) 2pcs
4. 5V/1A Power Adapter 2pcs
5. User Manual 1pcs
Package Contents
1. Extend HDMI ARC audio signal up to a distance of 150m/495ft
(96kHz) or 90m/295ft (192kHz) over a single CAT cable
2. Extend S/PDIF audio signal up to a distance of 150m/495ft
(96kHz) over a single CAT cable
3. Supports PCM 2.0ch, Dolby 5.1ch, DTS 5.1ch audio formats.
4. CEC pass-through when HDMI ARC mode is enabled
5. Plug-and-play
6. Small compact size
7. Ultra-low jitter and high-fidelity design
page 06
Specications
Technical
Supported
Audio Formats PCM 2.0ch, Dolby 5.1ch, DTS 5.1ch
Transmission
Distance and
Sample Rates
ARC audio: 150m/495ft - 96kHz, 90m/295ft - 192kHz
S/PDIF audio: 150m/495ft - 96kHz
ESD Protection Human-body Model: ±8kV (Air-gap discharge) ,
±4kV (Contact discharge)
Connection
Transmitter
Input port: 1 ×S/PDIF IN [Optical Audio Jack]
1 ×ARC IN [HDMI Type A, 19-pin female]
1 ×Micro-USB
Output port: 1 ×CAT OUT [RJ45]
Receiver
Input port: 1 ×CAT IN [RJ45]
1 ×Micro-USB
Output port: 1 ×S/PDIF OUT [Optical Audio Jack]
1 ×ARC OUT [HDMI Type A, 19-pin female]
Mechanical
Housing Metal Enclosure
Color Black
Dimensions 90mm (W) × 72mm (D) × 20mm (H)
Weight 175g
Power Consumption Transmitter: 0.35W / Receiver: 0.7W
Power Supply DC 5V/1A
Operating Tempera-
ture 32~104°F / 0~40°C
Storage Temperature -4~140°F / -20~60°C
Relative Humidity 20~90% RH (Non-condensing)
page 07
No. Name Function Description
1. Power LED When the Transmitter is powered on, the red power
LED will be on.
2. S/PDIF
/ARC switch
Use this switch to select audio pass-through channel.
Switch to “S/PDIF”: The S/PDIF OUT port outputs the
optical audio from the S/PDIF IN port of the transmitter.
Switch to “ARC”: The ARC OUT port outputs the HDMI
ARC audio from the ARC IN port of the transmitter.
3. CAT OUT Connect to the CAT IN port of the receiver with a CAT6
cable.
4. S/PDIF IN
Optical fiber audio input port, connected to an optical
digital audio source device with an Optical Toslink
cable.
5. ARC IN HDMI audio signal input port, connected to the TV
ARC port. Used for ARC audio and CEC pass-through.
6. DC 5V Micro USB power input port.
DC 5VARC INS/PDIF INCAT OUT
S/PDIF ARC
2 4 5 61 3
Transmitter
Operation Controls
and Functions
page 08
Receiver
DC 5VARC OUTS/PDIF OUTCAT IN
3 4 5
2
1
No. Name Function Description
1. Power LED When the Receiver is powered on, the red power LED
will be on.
2. CAT IN Connect to the CAT OUT port of the transmitter with a
CAT6 cable.
3. S/PDIF OUT Optical fiber audio output port, connected to amplifier
or speaker with an Optical Toslink cable.
4. ARC OUT HDMI audio signal output port, connected to the ARC
of a sound system.
5. DC 5V Micro USB power input port.
Operation Controls
and Functions
page 09
Situation 1: ARC Mode
S/PDIF ARC
TV with ARC feature
CAT6 cable USB Power Cable
LAN
Transmitter
Receiver
DC 5VARC INS/PDIF INCAT OUT
DC 5VARC OUTS/PDIF OUTCAT IN
USB Power Cable
Soundbar
LAN
Application Example
page 10
Situation 2: S/PDIF Pass-through Mode
Amplifier
TV
CAT6 cable USB Power Cable
LAN
Transmitter
Receiver
S/PDIF ARC
DC 5VARC INS/PDIF INCAT OUT
DC 5VARC OUTS/PDIF OUTCAT IN
USB Power Cable
LAN
The terms HDMI and HDMI High-Definition Multimedia interface, and the HDMI Logo are
trademarks or registered trademarks of HDMI Licensing LLC in the United States and other
countries.
Application Example
page 11
© 2023
HDMI ARC & S/PDIF Audio Extender
(150m) over CAT Cable
www.orei.com
ARC-EX300-K
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