
AU-A300-HBT
HDBaseT™ 2-Channel Digital AV Receiver (Repeatable)

Please read all instructions before attempting to unpack, install or
operate this equipment and before connecting the power supply.
Please keep the following in mind as you unpack and install this
equipment:
• Always follow basic safety precautions to reduce the risk of fi re,
electrical shock and injury to persons.
• To prevent fi re or shock hazard, do not expose the unit to rain,
moisture or install this product near water.
• Never spill liquid of any kind on or into this product.
• Never push an object of any kind into this product through any
openings or empty slots in the unit, as you may damage parts
inside the unit.
• Do not attach the power supply cabling to building surfaces.
• Use only the supplied power supply unit (PSU). Do not use the PSU
if it is damaged.
• Do not allow anything to rest on the power cabling or allow any
weight to be placed upon it or any person walk on it.
• To protect the unit from overheating, do not block any vents or
openings in the unit housing that provide ventilation and allow for
suffi cient space for air to circulate around the unit.
REVISION HISTORY
VERSION NO. DATE DD/MM/YY SUMMARY OF CHANGE
RDV1 23/01/14 Preliminary Release

1. Introduction ............................................ 1
2. Applications ........................................... 1
3. Package Contents ................................ 1
4. System Requirements ............................ 1
5. Features .................................................. 2
6. Operation Controls and Functions ....... 3
6.1 Front Panel ........................................3
6.2 Rear Panel .........................................4
6.3 RS-232 Pin Assignment .....................5
6.4 IR Cable Pin Assignment..................6
7. Remote Control ...................................... 7
7.1 OLED Menu .......................................8
7.2 Telnet & RS-232 Command ............. 9
7.3 Telnet Control .................................11
7.4 WebGUI Control .............................13
8. Connection Diagram .......................... 14
9. Specifi cations ......................................15

The AU-A300-HBT is a compact 2 channel digital receiver that is
perfect for providing high quality audio distribution in remote AV
zones within any multi-room installation. This advanced solution can
integrate local HDMI and remote HDBaseT sources from a CYP matrix,
local inputs (iPod and MP3 etc) via the stereo and digital inputs and
even utilise the audio output from a TV, which is growing in
popularity as a dedicated source within an AV system. The device
also incorporates a HDBaseT output that can be used for creating
additional HDBaseT zones or used to repeat the signal to further
HDBaseT 2-Channel Digital AV Receivers.
2. APPLICATIONS
• Public Speech
• Show even audio set up
• Home theater/Entertainment
• Educational/Lecture presentation
3. PACKAGE CONTENTS
• 1 x HDBaseT 4K UHD with Digital Presentation Amplifi er
• 1 x Remote Control CR-141
• 1 x 24V/3.75A DC Power Adaptor
• 1 x Power Cable
• 1 x Rack Ears Set
• Operational Manual
4. SYSTEM REQUIREMENTS
Input audio source equipment such as DVD/Blu-ray players, PC,
CD player, MP3, HDMI over CAT5e/6/7 Transmitter and Receiver
and etc…. with output display TV/monitor and active speakers and
connection cables.

• 30W per channel digital stereo Amplifier
• Integrated HDBaseT Input and Output
• Control via remote control, RS-232 or IP (Web GUI or Telnet)
• Simultaneous audio outputs
• HDMI Audio Embedding
• Supports Digital to Analogue (DAC) and Analogue to Digital (ADC)
conversion
• Compact design for remote in-zone application
• Supports PoC (Power over Cable) for connected compatible HDBaseT
receivers

6. OPERATION CONTROLS AND FUNCTIONS
6.1 Front Panel
EXIT
POWER
SERVICE
MENU
HDBaseT™ 4K UHD with Digital Presentation Amplifier
1 2 3 4 5 6
1
Service: Connect with USB fl ash driver for fi rmware update only.
2
OLED: Display current input source selection and volume setting.
3
IR Window: Accept IR signal from the remote control included in
the package.
4
MENU: This button has two usage, one for volume control and the
other for menu selection. Turn the wheel to adjust the output sound
volume before entering into menu selection or press it to enter into
the menu selection then turn the wheel to rotate from the selection
and press it again to enter or to confi rm the selection.
5
EXIT: Press this button to exit from the menu selection. When
outside the menu selection press this button to mute the output
sound, the LED will illuminate. Press it again to unmute.
6
POWER: Press this button to turn on the device and the LED will
illuminate in blue, press it again to switch to standby mode and the
LED will turn red.
EXIT
POWER
SERVICE
MENU
HDBaseT™ 2-Channel AV Receiver
1 2 3 4 5 6

SPEAKER
RS-232
CAT5e/6/7 OUTCAT5e/6/7 IN
COAX.
LANAUDIO-CAT HDMI OUT HDMI IN
OPT.
IN
IN
R
L
RL
+
-
+
-
DC 24V
1
2
3
4
V+
GND
GND
GND
V+
LINE IN IR IN IR OUT
RCA IN
1 3 4 6 8 1511
2 5 7 9 10 1312 14
1
LAN: Connect from PC/Laptop with RJ-45 cable for Telnet/WebGUI
controls.
2
RS-232: Connect from PC/Laptop with D-Sub 9pin cable for RS-232
controls.
3
AUDIO-CAT: Connect from/to audio Transmitter/Receiver over
CAT5e/6/7 extender for audio receiving/transmitting up to 300m.
4
HDMI OUT: Connect to HD TV/monitor for both audio and video
display.
5
CAT5e/6/7 OUT: Connect to HDMI over CAT5e/6/7 Receiver for
Audio & Video, IR, RS-232, LAN and PoC signal sending up to 100m.
6
HDMI IN: Connect to DVD/Blu-ray player or any HDMI source
equipment for input audio and video signal sending.
7
CAT5e/6/7 IN: Connect from HDMI over CAT5e/6/7 Transmitter
for receiving Audio & Video, IR, RS-232, LAN and PoC signal up to
100m away.
8
OPT. IN: Connect from source equipment such as Set-top-box
or PS3 or any other source with optical output for audio signal
sending.
9
COAX. IN: Connect from source equipment such as Set-top-box
or PS3 or any other source with coaxial output for audio signal
sending.
10
RCA IN: Connect from audio source equipment with RCA jack for
stereo audio input.
11
SPEAKER: Connect from speakers with wired cable for stereo audio
output.