AVGear AVG-SC41T-CODEC User manual

AVG-SC41T-CODEC
Features
Supports resolution conversion
ranging from 720p to 4Kx2K@30Hz
4:4:4
Provides a variety of interfaces to
simplify room device management.
Supports PCs, USB devices such as
keyboard, webcam, Mic for
Conferencing system.
Extends the transmission distance
of USB signals.
Supports Auto-switching for inputs.
HDBaseT technology extends
Video, Audio, Control and Ethernet
up to 100m.
De-embedded Analogue Audio.
CEC control of connected Display.
Controllable relays for Projector
screens or lifts.
Local Input available on the
Receiver for BYOD (sold
separately).
The AVG-SC41T-Codec is a conferencing system
codec kit supporting resolutions up to 4K@30Hz
4:4:4 and HDCP2.2. It includes a Transmitter and
Receiver, providing AV Switching, de-embedded
Audio, System Control commands and USB
Extension.
Video, Audio, Control, USB and Ethernet signals
can be transmitted over a single CATx cable up to
100m.

AVG-SC41T-CODEC
PLEASE READ THIS PRODUCT MANUAL CAREFULLY
BEFORE USING THIS PRODUCT.
This manual is only for operational instruction only,
and not to be used for maintenance. The functions
described in this version are current as at January
2018. Any changes of functions and operational
parameters will be updated in future manual versions.
Please refer to your dealer for the latest product
details.
Version 1.0 31/1/18

AVG-SC41T-CODEC
SAFETY OPERATION GUIDE
To guarantee the reliable operation of the equipment and safety of the user,
please abide by the following procedures in installation, use and maintenance:
1. The system must be earthed properly. Please do not use two blade plugs
and ensure the alternating power supply ranges from 100v to 240v and from
50Hz to 60Hz.
2. Do not install the switcher in an environment where it will be exposed to
extreme hot or cold temperatures.
3. This unit will generate heat during operation, please ensure that you allow
adequate ventilation to ensure reliable operation.
4. Please disconnect the unit from mains power if it will be left unused for a
long time.
5. Please DO NOT try to open the casing of the equipment, DO NOT attempt to
repair the unit. Opening the unit will void the warranty. There are high
voltage components in the unit and attempting to repair the unit could result
in serious injury.
6. Do not allow the unit to come into contact with any liquid as that could result
in personal injury and product failure.

AVG-SC41T-CODEC
TABLE OF CONTENTS
Introduction ..............................................................................................................1
Introduction to AVG-SC41T-CODEC............................................................1.1
Features .......................................................................................................1.2
What’s in the Box..........................................................................................1.3
Panel Description.....................................................................................................2
Transmitter ...................................................................................................2.1
Receiver .......................................................................................................2.2
System Connection..................................................................................................3
Usage Precautions.......................................................................................3.1
System Diagram...........................................................................................3.2
Operation..................................................................................................................4
Front Panel Controls.....................................................................................4.1
Manual Switching............................................................................4.1.1
Auto Switching................................................................................4.1.2
Volume Control...............................................................................4.1.3
RS232 Control..............................................................................................4.2
Installation/Removal of RS232 Control Software............................4.3.1
Basic Settings.................................................................................4.3.2
RS232 Control Commands.............................................................4.3.3
OSD Menu Control.......................................................................................4.4
Picture Menu Item...........................................................................4.4.1
Setup Menu Item ............................................................................4.4.2
Web Based GUI Control...............................................................................4.5
Control Menu..................................................................................4.5.1
Configuration Menu ........................................................................4.5.2
RS232 Control Menu ......................................................................4.5.3
Password Menu..............................................................................4.5.4
Web Based GUI Update .................................................................4.5.5
Specifications...........................................................................................................5
Panel Drawing ..........................................................................................................6
Troubleshooting & Maintenance.............................................................................7

AVG-SC41T-CODEC
1. Introduction
1.1. Introduction to AVG-SC41T-CODEC
The AVG-SC41T-Codec is a conferencing system codec kit supporting resolutions
up to 4K@30Hz 4:4:4 and HDCP2.2. It includes a Transmitter and Receiver,
providing AV Switching, de-embedded Audio, System Control commands and USB
Extension. Video, Audio, Control, USB and Ethernet signals can be transmitted over
a single CATx cable up to 100m.
The kit provides four Video inputs such as HDMI, VGA and DP. To help simplify
meeting room device management, the kit offers LAN connections for Ethernet and
USB ports for device extension, four on the Transmitter and two on the Receiver. It
supports a variety of USB2.0 devices such as Cameras, Microphones and
keyboards. It supports many other HID devices.
Users can control system functionality via WEB GUI, RS232 and CEC. Users also
have control over the relay ports for projector screen or lifts.
It’s a versatile solution for use in education institutions, meeting rooms, conference
rooms using PC-based conferencing system codecs such as Skype, WebEx and
GoToMeeting.
1.2. Features
Supports resolution conversion ranging from 720p to 4Kx2K@30Hz 4:4:4
Provides a variety of interfaces to simplify room device management.
Supports PCs, USB devices such as keyboard, webcam, Mic for Conferencing
system.
Extends the transmission distance of USB signals.
Two USB B ports used to connect to the host and four USB A for HID devices
such as Webcam, mic and keyboard.
Supports Auto-switching for inputs.
HDBaseT technology extends Video, Audio, Control and Ethernet up to 100m.
Ethernet can be used from either the Transmitter or Receiver, providing easy
LAN access to users.
De-embedded Analogue Audio.
CEC control of connected Display.
Ensures EDID communication between sources and display.
Controllable relays for Projector screens or lifts.
Local Input available on the Receiver for BYOD (sold separately).

AVG-SC41T-CODEC
1.3. What’s in the Box
1 x AVG-SC41T-Codec-T Transmitter and 1 x AVG-SC41T-Codec-R Receiver
4 x Mounting Ears, and 6 screws
8 x Rubber feet
1 x RS232 cable (3 pin phoenix connector to DB9)
1 x 7 pin phoenix connector
1 x 5 pin phoenix connector
1 x Power Adapter (24VDC, 2.71A)
1 x User Manual
Note: Please confirm if the product and the accessories are all included, if not,
please contact with the dealers.

AVG-SC41T-CODEC
2. Panel Description
2.1. Transmitter Front Panel
①POWER LED: The LED illuminates red when power is applied, or orange when
the auto-switching mode is selected.
②INPUT LED & SOURCE SELECTOR:
1-HDMI: The LED illuminates green when 1-HDMI input signal is selected.
2-HDMI: The LED illuminates green when 2-HDMI input signal is selected.
3-DP: The LED illuminates green when 3-DP input signal is selected.
4-VGA: The LED illuminates green when 4-VGA input signal is selected.
RX HDMI: The LED illuminates green when the HDMI input signal on Receiver
is selected.
SOURCE SELECTOR: Press this button to select the source signal, or long-
press for 3 seconds or more to enable auto-switching mode.
For more details, please refer to section 4. Button Control.
③DISPLAY CONTROL: Press this button to toggle power to the displays. The LED
will illuminate green to reflect the state.
④RETURN: Return key used for the OSD.
⑤MENU / ENTER: Menu or Enter key for OSD.
⑥VOL - / MUTE: Press this button to turn down the audio output volume, or long-
press 3 seconds or more to mute / Left key for OSD.
⑦RELAY 1: Press this button to roll up the projection screen. / Up key for OSD.
⑧RELAY 2: Press this button to drop the projection screen. / Down key for OSD.
⑨VOL +: Press this button to turn up the audio output volume. / Right key for OSD.
Note: Pictures shown in this manual are for reference only, different model and
specifications are subject to real product.
RX HDMI SOURCE
AUTO/3s
1-HDMI 2-HDMI 4-VGA3-DP OFF DISPLAYON MENU
ENTER
RETURN
RELAY 1
VOL +
VOL -
MUTE/3s RELAY 2
1234568
7
9

AVG-SC41T-CODEC
2.2. Transmitter Rear Panel
①INPUT:
VIDEO: 2 HDMI inputs, 1 DP input and 1 VGA input.
AUDIO: 1 VGA auxiliary audio input.
②OUTPUT
HDMI: HDMI video output port.
HDBT: Support 24V PoC. Connect with HDBaseT Receiver to transmit AV
signal, IR or RS232 control signal.
③CONTROL
PC1 & PC2: Two Type-B USB ports, only one can be used to connect with a
PC at a time, and the two priority: PC1>PC2. Ideally you would have the main
PC connected to PC 1, and then PC2 is used for a laptop.
DEVICE 1 & DEVICE 2: Two Type-A USB ports, connect with USB HID
devices.
RS232: Serial port, 3-pin phoenix connector, connect with a control device
(such as PC).
TCP/IP: RJ45 connector, connect with PC to control this system via web-based
GUI.
LAN: Ethernet port for extending network signal.
Note: Please notice warning signs. The LAN port can’t be connected with
HDBT port.
FIRMWARE: Type-A USB port for updating system firmware or loading
customized EDID data.
④DC 24V: DC barrel connector for connecting the included power adapter.
Note: Pictures shown in this manual are for reference only.
HDMI
DC 24VINPUT
1-HDMI 2-HDMI 3-DP 4-VGA HDBT
RS232
Tx Rx
PC 1 DEVICE 1 TCP/IP LAN
OUTPUT
FIRMWARE
CONTROL
PC 2 DEVICE 2
AUDIO
124
3

AVG-SC41T-CODEC
2.3. Receiver Front Panel
①POWER LED: The LED illuminates red when power is applied.
②HDBT LED: The LED illuminates green when HDBT input signal present.
③HDMI LED: The LED illuminates green when HDMI input signal present.
④FIRMWARE: Type-A USB port for updating system firmware.
2.4. Receiver Front Panel
①HDBT IN: Connect to the HDBT OUT port of the Transmitter via CAT5e / 6a / 7
cable. Supports PoC technology.
②HDMI IN: HDMI input port.
③HDMI OUT: HDMI output port.
④AUDIO OUT: Stereo balanced L/R audio output port.
⑤DEVICES: Two Type-A USB ports, connect with USB HID devices.
⑥RS232: Serial port, 3-pin phoenix connector, connect with the display device
(such as projector) needed to be control via RS232 commands.
⑦RELAY1 & RELAY2: Connect with relay device (such as projector screen).
⑧LAN: Ethernet port, works with the LAN port on the Transmitter to extend
network signal.
Note: Please notice warning label. The LAN port can’t be connected with HDBT port.
FIRMWARE
HDBT HDMI
1234
HDBT IN HDMI IN HDMI OUT AUDIO OUT
L R
DEVICES
12
Tx Rx
CONTROL
Relay1 Relay2
LAN
123458
67

AVG-SC41T-CODEC
3. System Connection
3.1. Usage Precautions
1. The system should be installed in a clean environment that has proper
temperature and humidity.
2. All the power switches, plugs, sockets and power cords should be insulated and
safe.
3. All devices should be connected before powering it on.
3.2. System Diagram

AVG-SC41T-CODEC
4. Operation
4.1. Front Panel Control
Front panel buttons can be used for switching operations, OSD and volume control.
4.1.1. Manual Switching
Press the SOURCE/AUTO button to select an input for the Transmitter, press again
to select next source, switching sequentially between 1-HDMI, 2-HDMI, 3-DP and 4-
VGA. The corresponding LED will illuminate green.
The Receiver also features one HDMI input port, if you need to output the source
signal via its HDMI output port. The following is an example.
LED Status
Description
Status
1
The 1-HDMI LED illuminates
green, other source LEDs are
gone.
The 1-HDMI is selected as input
source. The input signal will be
transmitted to all video output
ports of Transmitter and
Receiver.
Status
2
The 2-HDMI and RX HDMI LEDs
illuminate green, other source
LEDs are gone.
The 2-HDMI is selected as
input source for Transmitter.
The input signal will be
transmitted to all video
output ports of Transmitter.
The HDMI input signal on
Receiver will be only
transmitted to the HDMI
output port of Receiver.
Follow the below steps to switch to the status 2 from status 1.
①Press the SOURCE/AUTO button once to select 2-HDMI, and then release this
button.
②Press the SOURCE/AUTO button continuously until the RX HDMI LED
illuminates green to select the HDMI input for Receiver.
RX HDMI SOURCE
AUTO/3s
1-HDMI 2-HDMI 4-VGA3-DP
RX HDMI SOURCE
AUTO/3s
1-HDMI 2-HDMI 4-VGA3-DP

AVG-SC41T-CODEC
4.1.2. Auto-Switching
Long-press the SOURCE/AUTO button for 3 seconds or more to enable auto-
switching mode. The auto-switching mode works as follows:
New input
Once the Transmitter detects a new input signal and it isn’t already locked onto
an input, it will switch to this new signal automatically.
Rebooting device
The Transmitter can save the last configuration before losing power. If the last
switching mode is auto-switching, once rebooted, the Transmitter will
automatically enter auto-switching mode, then detect all inputs and memorize
their connection status for future rebooting use. If the last displayed signal is still
available, the unit will output that signal. If not, the unit will detect any other input
signals with priority from 1-HDMI to 4-VGA. When the next available signal has
been detected it will switch this to the output.
Signal removing
On removal of the current source signal, the Transmitter will detect all input
signals with priority from 1-HDMI to 4-VGA. It will switch to the next available
input.
Note:
Auto-switching function works only when connecting a new signal, removing a
signal or power cycling.
The HDMI input source on Receive cannot be selected under auto-switching
mode.
4.1.3. Volume Control
The Receiver features audio output ports for connecting speakers or an AV amplifier.
Press the VOL+ or VOL- button on Transmitter to turn up or turn down the volume.

AVG-SC41T-CODEC
4.3. RS232 Control
As RS232 commands can be transmitted to the Receiver from the Transmitter, so it
is able to control the Transmitter or the third-party device (such as projector) on
Receiver from local.
The baud rate support 2400, 4800, 9600(default), 19200, 38400, 57600 or 115200.
RS232 Connection
There are two RS232 control modes.
Control Transmitter
Control Display
HDMI
DC 24VINPUT
1-HDMI 2-HDMI 3-DP 4-VGA HDBT
RS232
Tx Rx
PC 1 DEVICE 1 TCP/IP LAN
OUTPUT
FIRMWARE
CONTROL
PC 2 DEVICE 2
AUDIO
PC
HDMI
DC 24 VINP UT
1-HDMI 2-HDMI 3-DP 4-VGA HDBT
RS232
Tx Rx
PC 1 DEVIC E 1 TC P/IP LAN
OUTPUT
FIRMWARE
CONTROL
PC 2 DEV ICE 2
AUDIO
DC 12 V
PC
DEVICES
Tx Rx
CON TROLHDB T IN HDMI IN HDMI OUT L+R OUT
Relay1 Relay2
LAN
1 2
Projector

AVG-SC41T-CODEC
4.3.1. Installation/Removal of RS232 Control Software
Installation: Copy the control software file to the computer connected with
the AVG-SC41T-Codec transmitter.
Uninstallation: Delete all the control software files in corresponding file path.
4.3.2. Basic Settings
To begin with, connect the AVG-SC41T-Codec with all your input devices and output
devices required, then connect it to a PC which has some RS232 control software
installed. Double-click the software icon to run the software.
Here we have the software CommWatch.exe as an example. The icon looks like the
image below:
The interface of the control software is shown below:
Please set the parameters of COM port, baud rate, data bit, stop bit and the parity bit
correctly, and then you can successfully send commands in the Command Sending
Area.
Parameter
Configuration area
Monitoring area,
indicates whether the
command sent works.
Command Sending
area

AVG-SC41T-CODEC
4.3.3. RS232 Control Commands
Communication protocol: RS232 control Protocol Command Type: ASCII
Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none
The terminating characters for any of the commands are “<CR><LF>”. That is
carriage(h0D) return and line feed(h0A).
Source Switching
Command
Function
Feedback
SWIN H1
Switch to 1-HDMI input.
Switch to HDMI1
SWIN H2
Switch to 2-HDMI input.
Switch to HDMI2
SWIN DP
Switch to 3-DP input.
Switch to DP
SWIN VG
Switch to 4-VGA input.
Switch to VGA
SWIN
RXHDMI
Switch to RX HDMI input.
Switch to RX HDMI
AUTO 01
Enable auto-switching.
Auto Switching
AUTO 00
Enable manual-switching.
Manual Switching
?GET IN
Get the input source of Transmitter.
(HDMI1, HDMI2, DP, VGA)
TX Device Input: HDMI1
Get the input source of Receiver. (HDMI,
HDBT)
RX Device Input: HDMI
?GET AUTO
Get the switching mode.
Manual Switching/Auto
Switching
VGAA
Auto-adjust the input parameter (VGA
only).
VGA Input Auto
Audio Adjustment
Command
Function
Feedback
AUMT S1
Mute source audio.
Audio Mute Source:
Enable
AUMT S0
Unmute source audio.
Audio Mute Source:
Disable
AUMT V1
Mute VGA auxiliary input audio.
Audio Mute VGA: Enable
AUMT V0
Unmute VGA auxiliary input audio.
Audio Mute VGA:
Disable
?GET AUMT
Get the Source mute status.
Audio Mute Source:
Enable
Get the VGA auxiliary audio mute status.
Audio Mute VGA: Enable
VOLS AP
Turn up the source audio volume
(xx=00~60).
Source Volume: xx

AVG-SC41T-CODEC
Command
Function
Feedback
VOLS AN
Turn down the source audio volume
(xx=00~60).
Source Volume: xx
VOLV AP
Turn up the VGA auxiliary audio volume
(xx=00~60).
VGA Volume: xx
VOLV AN
Turn down the VGA auxiliary audio
volume (xx=00~60).
VGA Volume: xx
VOLS xx
Set the source audio volume
(xx=00~60).
Source Volume: xx
VOLV xx
Set the VGA auxiliary audio volume
(xx=00~60).
VGA Volume: xx
?GET VOL
Get the source audio volume
(xx=00~60).
Source Volume: xx
Get the VGA auxiliary audio volume
(xx=00~60).
VGA Volume: xx
Output Resolution
The default output resolution is 3840x2160@30Hz. Below is a list of output
resolutions the built-in scaler can output.
Command
Function
Feedback
TRES 01
Set the output resolution for
Transmitter to 3840x2160@30Hz.
TX Device Resolution:
3840x2160
TRES 02
Set the output resolution for
Transmitter to 1920X1080.
TX Device Resolution:
1920x1080
TRES 03
Set the output resolution for
Transmitter to 1280x720.
TX Device Resolution:
1280x720
RRES 01
Set the output resolution for Receiver
to 3840x2160@30Hz.
RX Device Resolution:
3840x2160
RRES 02
Set the output resolution for Receiver
to 1920x1080.
RX Device Resolution:
1920x1080
RRES 03
Set the output resolution for Receiver
to 1280x720.
RX Device Resolution:
1280x720
?GET RES
Get the output resolution for
Transmitter.
Tx Device Resolution:
1920x1080
Get the output resolution for Receiver.
Tx Device Resolution:
1920x1080

AVG-SC41T-CODEC
Auto Power Off Setup
Command
Function
Feedback
?GET TIME
Check the auto power-off mode.
Auto Switch Mode no
input to shut down time:
Disable
Manual Switch Mode no
input to shut down time:
Disable
TIME AD
Auto Switch Mode: Disable the auto
power-off function.
Auto Switch Mode no
input to shut down time:
Disable
TIME A1
Auto Switch Mode: Set the auto power-
off time to 1 minute when No signal
input.
Auto Switch Mode no
input to shut down time:
1 minutes
TIME A2
Auto Switch Mode: Set the auto power-
off time to 2 minutes when No signal
input.
Auto Switch Mode no
input to shut down time:
2 minutes
TIME A3
Auto Switch Mode: Set the auto power-
off time to 5 minutes when No signal
input.
Auto Switch Mode no
input to shut down time:
5 minutes
TIME A4
Auto Switch Mode: Set the auto power-
off time to 10 minutes when No signal
input.
Auto Switch Mode no
input to shut down time:
10 minutes
TIME MD
Manual Switch Mode: Disable auto
power-off time function.
Manual Switch Mode no
input to shut down time:
Disable
TIME M1
Manual Switch Mode: Set the power-off
time to 1 minute.
Manual Switch Mode no
input to shut down time:
1 minutes
TIME M2
Manual Switch Mode: Set the power-off
time to 2 minutes.
Manual Switch Mode no
input to shut down time:
2 minutes
TIME M3
Manual Switch Mode: Set the power-off
time to 5 minutes.
Manual Switch Mode no
input to shut down time:
5 minutes
TIME M4
Manual Switch Mode: Set the power-off
time to 10 minutes.
Manual Switch Mode no
input to shut down time:
10 minutes

AVG-SC41T-CODEC
Relay Control
Command
Function
Feedback
RLY1 ON
Turn on the Relay 1.
Relay 1 on
RLY1 OFF
Turn off the Relay 1.
Relay 1 off
RLY2 ON
Turn on the Relay 2.
Relay 2 on
RLY2 OFF
Turn off the Relay 2.
Relay 2 off
EDID Configuration
Command
Function
Feedback
EDID DF
The source device obtains the default
EDID 3840x2160@30Hz.
EDID: Initial
EDID US
Load customize EDID data from U-disk.
EDID: User
?GET EDID
Get EDID status.
EDID: Initial/ User
Device Setup
Command
Function
Feedback
SFUD TX
Update the software of Transmitter.
TX Device Software
Update
SFUD RX
Update the software of Receiver.
RX Device Software
Update
?GET REV
Get the system version.
Vx.x.x
FRST
Restore to factory defaults.
Factor Reset
WAKE
Wake up the system.
Wake Up
STBY
Let this system enter in standby mode.
Go To Standby
?GET IP
Get the IP address.
192.168.0.178!

AVG-SC41T-CODEC
4.4. OSD Menu Control
The AVG-SC41T-CODEC features a powerful OSD menu, including picture settings
and system setup.
Operation:
Press the button MENU/ENTER to enter OSD menu.
Press direction buttons (Left/Right/Up/ down) to select function on OSD menu.
Press MENU/ENTER button to confirm the selected function.
4.4.1. Picture Menu Item
Including Picture Mode, Color Mode, Advanced and Zoom Mode.
Picture mode: Including Dynamic, Standard, Soft, and Personal. Only in
Personal mode, will it be able to set the image contrast, brightness, color and
sharpness.
Color Mode: Including Normal, Cool, Medium.
Advanced: Including H-Pos, V-Pos, Clock, Phase, and Auto.
Zoom Mode: Including Normal, Zoom, Cinema, Wide.

AVG-SC41T-CODEC
4.4.2. Setup Menu Items
Including Menu Language, Restore Default, Software Update, Baudrate, TX
Resolution, RX Resolution and SW Version.
Menu Language: Supports 3 languages, including English (default), French, and
Spanish.
Restore Default: Restores to original system state.
Software Update (USB): Insert the USB flash disk with updating file to the
FIRMWARE port of the Scaler Switcher, to update the software through this
menu.
Baudrate: Set the baud rate for RS232 control, and it support 2400、4800、9600
、19200、38400、57600、115200.
TX Resolution: Set the output resolutions for Transmitter, and it support
3840x2160@30Hz, 1920x1080, 1280x720.
TX Resolution: Set the output resolutions for Receiver, and it support
3840x2160@30Hz, 1920x1080, 1280x720.
SW Version: Software version.