Link EXT100-eARC User manual

Version: V1.0.0
EXT100-eARC
eARC Audio-Only Extender
User Manual

Contents
Introduction...................................................................................................... 3
Overview................................................................................................... 3
Features ................................................................................................... 3
Package Contents .................................................................................... 3
Specifications ........................................................................................... 4
Transmission Distance ...................................................................... 5
Panel Descriptions.................................................................................... 5
Transmitter ........................................................................................ 5
Receiver ............................................................................................ 6
Installation andWiring ..................................................................................... 8
Installation ................................................................................................ 8
Wiring ....................................................................................................... 8
DIP Switch Settings ....................................................................................... 12
RS232 Pass-Through .................................................................................... 13

Introduction
Overview
This product is an eARC audio-only extender kit. It can transmit eARC/ARC
or alternative S/PDIF audio up to 100m/330ft from TV back to centralized
AVR. The kit supports full eARC capabilities up to Dolby Atmos. It also
supports full eARC function and is backward compatible with 5.1CH ARC. It
also features bi-directional IR, RS232, and CEC pass-through between the
eARC transmitter and receiver.
Features
Supports transmitting eARC/ARC audio up to 100m/330ft over a single
Cat 5e/6 or above cable.
The eARC audio supports article-based audio formats like Dolby Atmos
and DTS:X, and also supports lossless audio formats like Dolby TrueHD
and DTS HD Master.
Provides alternative S/PDIF audio return channel, which can be set
through a simple 2-pin DIP switch.
Multiple control methods, including bi-directional IR, RS232 and CEC
betweentransmitter and receiver.
Powered via Micro USB. Both transmitter and receiver could be powered
by 5V USB power.
Firmware upgradable via RS232 port.
Package Contents
1 x Transmitter
1 x Receiver
1 x Power Adapter (DC 5V 1A)

2 x Micro USB to USB Type-A Cables (L=1m)
1 x IR Emitter
1 x IR Receiver
2 x 3.5mm 3-Pin Phoenix Connector
8 x Mounting Brackets (with Screws)
Specifications
Technical
Input/Output Port
Transmitter:
1 x HDMI OUT, 1 x UTP OUT, 1 x S/PDIF IN, 1 x IR IN,
1 x IR OUT, 1 x RS232, 1 x Micro USB (for power input)
Receiver:
1 x HDMI IN, 1 x UTP IN, 1 x S/PDIF OUT, 1 x IR IN,
1 x IR OUT, 1 x RS232, 1 x Micro USB (for power input)
Audio Format Supported
S/PDIF: Dolby Digital, Dolby Digital Plus, DTS, DTS HD,
PCM 2.0
ARC: Dolby Digital, Dolby Digital Plus, DTS, DTS HD,
PCM 2.0
eARC: PCM 2.0, PCM 5.1, PCM 7.1, Dolby Digital, Dolby
Digital Plus, Dolby TrueHD, Dolby Atmos, DTS, DTS HD,
DTS HD Master Audio, DTS:X
General
Operating Temperature 0°C to 45°C (32°F to 113°F)
Storage Temperature -20°C to 70°C (-4°F to 158°F)
Humidity 10% to 90%, non-condensing
ESD Protection
Human-body Model:
±8kV (Air-gap discharge)/
±4kV (Contact discharge)
Power Supply DC 5V 1A
Power Consumption 3.582W (Max)
Device Dimension
(W x H x D)
120mm x 25mm x 70.2mm/
4.72" x 0.98’’ x 2.76’’ each for TX/RX
Product Weight 0.32kg/0.71lb

Transmission Distance
Note: T568B straight-through Category cable is recommended.
Cable Type Range
Cat 5e/6 or above 100m/330ft
HDMI Input/Output: 5m/16ft
Panel Descriptions
Transmitter
Front Panel
1 2 3 4 5
EXT100-eARC
eARC Audio-Only Extender
TRANSMITTER
DISPLAY
No. Name Description
1 POWER LED On/Off: The device is powered on/off.
2 LINK LED On: UTP link is normal.
Off: No UTP link or link error.
3 eARC LED
On: The eARC audio is being transmitted.
Blinking: The ARC audio is being transmitted.
Off:No eARC and ARC audio arebeing transmitted.
4 S/PDIF LED On: The S/PDIF audio is being transmitted.
Off: No S/PDIF audio is being transmitted.
5 SET
For eARC/ARC audio output channel selection.
Note: Detail information, please refer to “DIP Switch
Settings” section.

Rear Panel
1 2 3 4 5 6 7
No. Name Description
1 POWER Use the provided Micro USB to USB type-A cable to connect
with 5V power source (Such as USB port of display).
2 UTP Connect to UTP IN port of the receiver.
3 IR IN Connect to the IR receiver provided.
4 IR OUT Connect to the IR emitter provided.
5 RS232Connect to RS232 enabled device for RS232 pass-through or
upgrading.
6 HDMI OUT Connect to a display’s eARC/ARC HDMI inputport.
7 S/PDIF IN Connect to a display’s Toslink output port.
Receiver
Front Panel
1 2 3 4
EXT100-eARC
eARC Audio-Only Extender
RECEIVER
No. Name Description
1 POWER LED On/Off: The device is powered on/off.
2 LINK LED On: UTP link is normal.
Off: No UTP link or link error.
3 eARC LED
On: The eARC audio is being transmitted.
Blinking: The ARC audio is being transmitted.
Off:No eARC and ARC audio arebeing transmitted.

No. Name Description
4 S/PDIF LED On: The S/PDIF audio is being transmitted.
Off:No S/PDIF audio is being transmitted.
Rear Panel
1 2 3 4 5 67
No. Name Description
1 POWER Use the provided Micro USB to USB type-A cable to connect
with 5V power source.
2 UTP Connect to UTP OUT port of the transmitter.
3 IR IN Connect to the IR receiver provided.
4 IR OUT Connect to the IR emitter provided.
5 RS232Connect to RS232 enabled device for RS232 pass-through or
upgrading.
6 HDMI IN Connect to an AV receiver’s eARC/ARC HDMI outputport.
7 S/PDIF OUT Connect to an AV receiver’s Toslink inputport.

Installation and Wiring
Installation
Warnings:
Before wiring, disconnect the power from the device.
During wiring, connect and disconnect the cables gently.
Steps to install the device:
1. Attach the installation bracket to the enclosure using the screws provided
in the package separately.
2. The bracket is attached to the enclosure as shown.
3. Repeat the steps from 1 to 2 for the other side of the unit.
4. Attach the brackets to the surface you want to hold the unit against using
the screws (provided by others).
5. Repeat the steps from 1 to 4 to install the receiver.
Wiring
Warnings:
Before wiring, disconnect the power from all devices.
During wiring, connect and disconnect the cables gently.
Note: Ensure the connected display support eARC/ARC function and its

CEC function should be set to enable.
The extender supports two channels to output eARC/ARC audio from the
connected display.
1. Set the DIP switch of transmitter to eARC/ARC or S/PDIF channel (See
“DIP Switch Settings” section).
2. Connect the receiver’s HDMI IN port to an AV Receiver’s eARC/ARC
HDMI output port. Or connect the receiver’s S/PDIF OUT port to an AV
Receiver’s Toslink inputport.
3. Connect the transmitter’s HDMI OUT port to a display’s eARC/ARC input
port. Or connect the transmitter’s S/PDIF IN port to a display’s Toslink
output port.
4. Connect UTP OUT port of the transmitter to UTP IN port of the receiver.
5. Using the provided Micro USB to USB Type-A cables to connect the
transmitter and receiver to 5V power sources.
6. Power on all attached devices. The return audio signal from HDMI OUT
port will be transmitted to HDMI IN port, or the return audio signal from
S/PDIF IN port will be transmitted to S/PDIF OUT port (according to the
selection in step 1).
For additional wiring:
Bi-directional IR pass-through:Connect the provided IR receiver to IR
IN port of the transmitter/receiver, and connect the provided IR emitter to
IR OUT port of the receiver/transmitter. You can control the display at
receiver side or control the AV receiver at transmitter side.
Bi-directional RS232 pass-through:Connect RS232 enabled devices
such as PC to RS232 ports of the transmitter and receiver. (See “RS232
Pass-Through” section)

Transmitter
Receiver
Cat 5e/6 or above
Receiver Remote
IR Receiver
AV Receiver
IR emitter
eARC/ARC
IN
eARC/ARC
OUT
Display
Figure 1 eARC / ARC Channel

Transmitter
Receiver
Cat 5e/6 or above
S/PDIF
IN
S/PDIF
OUT
AV Receiver
Display
Receiver Remote
IR Receiver
IR emitter
Figure 2 S/PDIF Channel

DIP Switch Settings
Before powering on the kit, using DIP Switch on front panel of the transmitter
to select the channel to output the eARC/ARC audio.
1 2
Please refer to the following table to set:
Transmitter Function
1 2
Up - eARC/ARC Channel (default)
Down - S/PDIF Channel
“-“ indicates the position of this DIP switch has no influence on the function.
Note:
1) When select output eARC audio, audio format supported is as follows:
Up to 8ch L-PCM of 24 bit, 192kHz audio;
Support HBR audio formats, such as Dolby True-HD, Dolby Atmos
and DTS-X.
2) When output ARC audio, audio format supported is as follows:
Supports 5.1ch compressed audio, such as Dolby Digital, DTS 5.1,
and Dolby Digital Plus;
Supports 2.0ch uncompressed PCM audio.
3) When output the return audio through S/PDIF port, audio format
supported is as follows:
Supports 5.1ch compressed audio, such as Dolby Digital, DTS 5.1,
and Dolby Digital Plus;
Supports 2.0ch uncompressed PCM audio.

RS232 Pass-Through
RS232 ports can be used for bi-directional RS232 signal pass-through
betweenthe transmitter and receiver.
Transmitter
Receiver
Cat x
RS232 Device
RS232 Device
RX
TX
GND
TX
RX
G
RS232 Port Connected RS232 Device Pins