AVGear AVG-UHC41A User manual

AVG-UHC41A
Features
▪Supports HDMI 2.0 and video
resolutions up to 4K@60Hz
4:4:4 8bit, 1080P, and 3D.
▪18Gbps bandwidth and supports
HDR10, HDR10+, Dolby Vision.
▪HDCP 2.2 compliant.
▪Features auto switching.
▪CEC control for display volume
and power control.
▪Controllable via RS232 and IR.
▪Optical and balanced analog
audio, audio de-embedding.
▪Smart EDID management for
various applications and
customised settings.
▪
The AVG-UHC41A is a 4x1 Presentation Switcher. The
switcher allows selection of four different sources (three
HDMI inputs and one USB-C input) which can be
switched to the HDMI output. It supports video
resolutions up to 4K@60Hz 4:4:4 8 bits, 1080P and 3D. It
features a built-in EDID dip switch on the rear panel.
The switcher supports stereo and multichannel audio on
the HDMI inputs. The audio embedded into the HDMI
output also simultaneously de-embeds to an optical
digital audio output and a balanced analogue audio
output.

AVG-UHC41A
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
2019. 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 30/1/19

AVG-UHC41A
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-UHC41A
TABLE OF CONTENTS
Introduction ..............................................................................................................1
Introduction to AVG-UHC41A.......................................................................1.1
Features .......................................................................................................1.2
What’s in the Box..........................................................................................1.3
Panel Description.....................................................................................................2
Front Panel...................................................................................................2.1
Rear Panel....................................................................................................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
Display Control ...............................................................................4.1.3
EDID Setting...................................................................................4.1.4
IR Remote Control........................................................................................4.2
RS232 Control..............................................................................................4.3
RS232 Control Software.................................................................4.3.1
RS232 Control Commands.............................................................4.3.2
Web Based GUI Control...............................................................................4.4
Switching Tab ................................................................................4.4.1
Display Control Tab .......................................................................4.4.2
Audio Tab ......................................................................................4.4.3
EDID Tab........................................................................................4.4.4
RS232 Tab......................................................................................4.4.5
Interface Tab ..................................................................................4.4.6
Access Tab ....................................................................................4.4.7
Network Tab ..................................................................................4.4.8
GUI Update.....................................................................................4.4.9
Specifications...........................................................................................................5
Panel Drawing ..........................................................................................................6
Troubleshooting & Maintenance.............................................................................7

AVG-UHC41A
1. Introduction
1.1. Introduction to AVG-UHC41A
The AVG-UHC41A is a 4x1 Presentation Switcher. The switcher allows selection of
four different sources (three HDMI inputs and one USB-C input) which can be
switched to the HDMI output. It supports video resolutions up to 4K@60Hz 4:4:4 8
bits, 1080P and 3D. It features a built-in EDID dip switch on the rear panel.
The switcher supports stereo and multichannel audio on the HDMI inputs. The audio
embedded into the HDMI output also simultaneously de-embeds to an optical digital
audio output and a balanced analogue audio output.
The AVG-UHC41A has multiple methods of controlling it. While it is in Auto mode,
the switcher will automatically switch to the first detected source. When the active
source is removed, it will switch through inputs 1-4 to find the next available source.
If it is in manual mode, then you can control it from the buttons on the front panel. It
also has IR and RS232 control. CEC control allows the display device to be
controlled by the switcher.
1.2. Features
▪Supports HDMI 2.0 and video resolutions up to 4K@60Hz 4:4:4 8bit, 1080P,
and 3D.
▪18Gbps bandwidth and supports HDR10, HDR10+, Dolby Vision.
▪HDCP 2.2 compliant.
▪Features auto switching.
▪CEC control for display volume and power control.
▪Controllable via RS232 and IR.
▪Optical and balanced analog audio, audio de-embedding.
▪Smart EDID management for various applications and customised settings.

AVG-UHC41A
1.3. What’s in the Box
▪1 x AVG-UHC41A HDMI2.0 4x1 Presentation Switcher
▪2 x Mounting Ears with 4 screws
▪4 x Rubber feet
▪1 x IR Receiver
▪1 x IR Remote
▪1 x RS232 cable (3 pin phoenix connector to DB9)
▪1 x 3 pin phoenix connector
▪1 x 5 pin phoenix connector
▪1 x Power Adapter (12VDC, 1A)
▪1 x User Manual
Note: Please confirm if the product and the accessories are all included, if not,
please contact with the dealers.

AVG-UHC41A
2. Panel Description
2.1. Front Panel
①Power LED: The LED illuminates red when the device is in standby or illuminates
green when the device is powered on.
②VIDEO SOURCE:
⚫Press 1~4button to select input source respectively, its corresponding LED
will illuminate green.
⚫Press and hold the AUTO button for at least 3 seconds to enable automatic
switch mode, its LED will illuminate green.
③DISPLAY CONTROL:
⚫Press ON to turn the display on.
⚫Press OFF to turn the display off.
⚫Press to mute/unmute the display’s audio.
⚫Press to decrease the audio volume gradually or press and hold it to
decrease the audio volume constantly.
⚫Press to increase the audio volume gradually or press and hold it to
increase the audio volume constantly.
④FW: Micro-USB port for firmware upgrade.
1
ABC
3
2
DEFG
4

AVG-UHC41A
2.2. Rear Panel
①VIDEO SOURCE:
⚫Three type-A female HDMI input ports to connect HDMI video sources.
⚫One type-C USB input port to connect a MacBook or another device with a
Slim Port output video source.
②HDMI OUT: Type-A female HDMI output port to connect the video display.
③OPTICAL: Toslink connector for digital audio output.
④L/R: 5-pin terminal block for balanced audio output.
⑤EDID: 4-pin DIP switch for EDID setting.
⑥IR IN: 3.5mm mini jack to connect an IR receiver to facilitate the control of the
switcher via the included IR remote.
⑦RS232: 3-pin terminal block to connect a RS232 control device (PC) or a device
to be controlled by RS232 commands.
⑧TCP/IP: RJ45 connector to connect a control device (e.g. PC) which allows
control via GUI.
⑨DC 12V: DC barrel port for power adapter connection.
Note: Pictures shown in this manual are for reference only.
1. HDMI/MHL IN 2. HDMI IN 3. HDMI IN 4. USB-C IN IR CONTROLEDID
ON
OFF 1
0
HDMI OUT OPTICAL
1 2 3 4
L R
DC 12V
Tx Rx
RS232 TCP/IP
123 4 56789

AVG-UHC41A
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
1. HDMI/MHL IN 2. HDMI IN 3. HDMI IN 4. USB-C IN IR CONTROLEDID
ON
OFF 1
0
HDMI OUT OPTICAL
1 2 3 4
L R
DC 12V
Tx Rx
RS232 TCP/IP
PC
HDMI:
VIDEO:
RS232:
DP:
IR:
GUI Control:
4K TV
MacBook
AVR Remote
IR
Receiver
Laptop
Blu-Ray
Game Console
MacBook

AVG-UHC41A
4. Operation
4.1. Front Panel Control
Front panel buttons can be used for switching operations, EDID and display control.
4.1.1. Manual Switching
When the switcher is in the manual switching mode, the Auto Mode LED goes out. If
need to change the input source, please directly press the 1, 2, 3 or 4 buttons, and
the corresponding LED illuminates green immediately.
4.1.2. Auto-Switching
Press and hold the AUTO button for at least 3 seconds to enable automatic
switching. Once enabled, the Auto mode LED illuminate.
When in Auto mode, the switcher will switch according to the following rules:
▪The switcher will switch to the first available active input starting at input 1
through to input 4.
▪New input: The switcher will automatically select the new input once detecting a
new input.
▪Reboot: If power is restored to the switcher, it will automatically reconnect to the
last input it was on previously.
▪Source removed: When an active source is removed, the switcher will switch to
the first available active input starting at 1-HDMI/MHL input.
▪Press the Video Source button (1, 2, 3or 4) can directly change the input source.
If the corresponding source device is active, it will be switched to as the input
source; otherwise, the switcher will switch to the first available active input
starting at 1-HDMI/MHL input.
▪Press and hold the AUTO button for at least 3 seconds again will exit AUTO
mode. The input source will remain on the current source.
4.1.3. Display Control
The switcher supports CEC control. The DISPLAY CONTROL buttons on the front
panel are used for Display On/Off and volume control.
▪ON:Display On.
▪OFF: Display Off.
▪: Mute/unmute display audio.
▪: Volume down display audio.
▪: Volume up display audio.

AVG-UHC41A
4.1.4. EDID Setting
The Extended Display Identification Data (EDID) is used for the source device to
match its video resolution with the connected display. By default, the source device
obtains its EDID from the first connected display. Meanwhile, since the displays with
different capabilities are connected to the switcher, the 4-pin DIP switch on the rear
panel can be used to set the EDID to a built-in fixed value. Use the following table to
determine the setting for the 4-pin DIP switch for specific video resolution and audio
capabilities.
The switch represents “0” when in the lower (OFF) position, and it represents “1”
while putting the switch in the upper (ON) position.
Switch Status
Video Resolution
Audio Format
0000 (Default)
EDID pass-through
0001
1920x1080@60Hz RGB 4:4:4 8bit
Stereo
0010
1920x1080@60Hz RGB 4:4:4 8bit
High Definition
0011
1920x1080@60Hz RGB 4:4:4 12bit
Stereo
0100
1920x1080@60Hz RGB 4:4:4 12bit
High Definition
0101
3840x2160@60Hz RGB 4:2:0 12bit
Stereo
0110
3840x2160@60Hz RGB 4:2:0 12bit
High Definition
0111
3840x2160@60Hz RGB 4:4:4 HDR 12bit
Stereo
1000
3840x2160@60Hz RGB 4:4:4 HDR 12bit
High Definition
1001
1280x800@60Hz RGB 4:4:4 8bit
Stereo
1010
1920x1200@60Hz RGB 4:4:4 8bit
Stereo
1011
User-define
1100
User-define
1101
User-define
1110
User-define
1111
Web GUI or RS232 mode.

AVG-UHC41A
4.2. IR Remote Control
Connect the IR IN port to an IR receiver, the switcher can then be controlled by the
below IR remote.
①Enter or exit standby mode.
②Video input selection buttons (1~4) and AUTO
mode button.
③Source device control buttons.
Page Up
Page Down
Rewind
Fast Forward
Pause/Play
Stop
Exit
Enter
Up
Down
Left
Right
Power On/Off
④Display device control buttons.
Power On/Off
Mute/Unmute
Volume Down
Volume Up
4.3. RS232 Control
Connect the RS232 port to control device (e.g. PC) with RS232 cable. The switcher
can be controlled by sending the RS232 commands.
4.3.1. Installation/Removal of RS232 Control Software
▪Installation: Copy the control software file to the computer.
▪Uninstallation: Delete all the control software files in corresponding file path.
Basic Settings
To begin with, connect the AVG-UHC41A 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:

AVG-UHC41A
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.
4.3.2. RS232 Control Commands
Communication protocol: RS232 control Protocol Data Type: ASCII
Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none
▪You do not need to have a carriage(h0D) return or line feed(h0A) as the
terminating characters. This protocol uses “.”and “;”.
▪The “[“ and “]” symbols are for easy reading, they do not need to be included
in the command.
▪The commands are case-sensitive.
Parameter
Configuration area
Monitoring area,
indicates whether the
command sent works.
Command Sending
area

AVG-UHC41A
Device Control
Command
Function
Feedback Example
POWON.
Power on system.
Power ON!
POWOFF.
System standby.
Power OFF!
LOCK.
Lock front panel buttons.
Front Panel Locked!
UNLOCK.
Unlock front panel buttons.
Front Panel UnLock!
Baudrate[xxx].
Set baud rate to [xxx].
xxx = 115200, 57600, 38400, 19200,
9600, 4800 or 2400.
Example: Baudrate2400.
Feedback: Set Local RS232
Baudrate Is 2400!
GETGUIIP.
Report GUI IP.
GUI_IP:192.168.0.178
SETGUIIP:
[xxx.xxx.xxx.xxx].
Set GUI IP to [xxx.xxx.xxx.xxx].
Example:
SETGUIIP:192.168.0.18.
Feedback:
SETGUIIP:192.168.0.18!
STA.
Report system status.
… …
RST.
Factory reset.
Factory Default!
Source Switching
Command
Function
Feedback Example
HDMI[x].
Switch to source input [x]. x=1~4.
Example: HDMI4.
Feedback: HDMI Out Switch
To 04!
HDMIA.
Enable auto switching mode.
HDMI Out Switch Auto Mode!
HDMIM.
Enable manual switching mode.
HDMI Out Switch Manual
Mode!

AVG-UHC41A
EDID Management
Command
Function
Feedback Example
EDIDR[xxxx].
Read the preset EDID. [xxxx]
represents the 4-pin DIP switch
status.
EDID_0001!
…
EDIDUSE[xxxx].
Invoke the preset EDID. [xxxx]
represents the 4-pin DIP switch
status.
Note: When invoke the preset EDID,
the 4-pin EDID DIP switch on the rear
panel must be in the “1111” status.
EDIDUSE0001!
EDID_RS232&GUI_MODE!
EDID0001!
User-define EDID
There are four EDID values that can be customized by sending the below command.
IMPORTANT: When use the below commands to configure EDID, the 4-pin EDID
DIP switch on the rear panel must be in the “1111” status.
Command
Function & Operation
EDIDW[xxxx].
User-define EDID. xxxx = 1011, 1100, 1101 or 1110.
Operation:
Step 1: Prepare the EDID file (.bin).
Step 2: Set the 4-pin DIP switch to “1111” status.
Step 3: Send the command “EDIDW1101.”, and the feedback is
“Please Send the EDID File!”.
Step 4: Send the EDID file (.bin). If successfully upload, the feedback
is:
“Received the File!
Length=256!
EDID1101 Update OK!”

AVG-UHC41A
Audio Control
Command
Function
Feedback Example
IISON.
Turn on the stereo analog L/R audio
output.
IIS_OUT_ON!
IISOFF.
Turn off the stereo analog L/R audio
output.
IIS_OUT_OFF!
SPDIFON.
Turn on the Toslink digital audio
output.
SPDIF_OUT_ON!
SPDIFOFF.
Turn off the Toslink digital audio
output.
SPDIF_OUT_OFF!
Display Control
Command
Function
Feedback Example
TVON.
Power on the display.
CEC_TV_POWON!
TVOFF.
Power off the display.
CEC_TV_POWOFF!
TVVOL+.
Increase the display audio.
CEC_TV_VOLUP!
TVVOL-.
Decrease the display audio.
CEC_TV_VOLDOWN!
TVMUTE.
Mute/unmute the display.
CEC_TV_VOLMUTE/UNMUTE!
CEC Control
If the input sources and display support CEC, they can be controlled by sending the
below commands to replace IR remote.
CEC[I/O][port][command].
⚫The “[I]” represents the input port. The “[O]” represents the output port.
⚫The “[port]” represents the port number. The HDMI input ports are 01~04, and
the HDMI output port is 01.
⚫The “[port]” is “FF” for sending command to all input or output ports.
⚫The “[command]” represents the specific command from the table below.

AVG-UHC41A
✓Control the input source:
Command
Description
Example and Feedback
CECI[port]00.
Confirm operation (Enter).
CECI0100.
CEC_IN_01_SEND_SUCCESS!
CECI[port]01.
UP.
CECI0101.
CEC_IN_01_SEND_SUCCESS!
CECI[port]02.
DOWN.
CECI0102.
CEC_IN_01_SEND_SUCCESS!
CECI[port]03.
LEFT.
CECI0103.
CEC_IN_01_SEND_SUCCESS!
CECI[port]04.
RIGHT.
CECI0104.
CEC_IN_01_SEND_SUCCESS!
CECI[port]0A.
Enter main menu.
CECI010A.
CEC_IN_01_SEND_SUCCESS!
CECI[port]0D.
Exit menu.
CECI010D.
CEC_IN_01_SEND_SUCCESS!
CECI[port]41.
Volume up.
CECI0141.
CEC_IN_01_SEND_SUCCESS!
CECI[port]42.
Volume down.
CECI0142.
CEC_IN_01_SEND_SUCCESS!
CECI[port]43.
Mute
CECI0143.
CEC_IN_01_SEND_SUCCESS!
CECI[port]44.
Play.
CECI0144.
CEC_IN_01_SEND_SUCCESS!
CECI[port]45.
Stop.
CECI0145.
CEC_IN_01_SEND_SUCCESS!

AVG-UHC41A
CECI[port]46.
Pause.
CECI0146.
CEC_IN_01_SEND_SUCCESS!
CECI[port]48.
Rewind.
CECI0148.
CEC_IN_01_SEND_SUCCESS!
CECI[port]49.
Fast forward.
CECI0149.
CEC_IN_01_SEND_SUCCESS!
CECI[port]4B.
Forward.
CECI014B.
CEC_IN_01_SEND_SUCCESS!
CECI[port]4C.
Backward.
CECI014C.
CEC_IN_01_SEND_SUCCESS!
CECI[port]6C.
Power off.
CECI016C.
CEC_IN_01_SEND_SUCCESS!
CECI[port]6D.
Power on.
CECI016D.
CEC_IN_01_SEND_SUCCESS!
Note: The above CEC commands may not be used to control some kinds of source
devices. Please contact your local distributor for further assistance or solutions.

AVG-UHC41A
✓Control the output display:
Command
Description
Example and Feedback
CECO[port]41.
Volume up.
CECO0141.
CEC_OUT_01_SEND_SUCCESS!
CECO[port]42.
Volume down.
CECO0142.
CEC_OUT_01_SEND_SUCCESS!
CECO[port]43.
Mute
CECO0143.
CEC_OUT_01_SEND_SUCCESS!
CECO[port]6C.
Power off.
CECO016C.
CEC_OUT_01_SEND_SUCCESS!
CEO[port]6D.
Power on.
CECO016D.
CEC_OUT_01_SEND_SUCCESS!
Note: The above CEC commands may not be used to control some kinds of display
devices. Please contact your local distributor for further assistance or solutions.

AVG-UHC41A
Third-party Device Control
The switcher supports RS232 pass-through control, the third-party device can be
controlled by RS232 command, and the command format as shown below:
Command
Function
Command Example
/+[B]:xxx.
xxx: ASCII string.
The “B” represents the baud rate
of third-party device.
B=1, the baud rate is 2400
B=2, the baud rate is 4800
B=3, the baud rate is 9600
B=4, the baud rate is 19200
B=5, the baud rate is 38400
B=6, the baud rate is 57600
B=7, the baud rate is 115200
/+3:123456.
Send the command “123456” to
the third-party whose baud rate
is 9600.
CMDON/+[B]:xxx.
Power on the third-party device.
CMDON/+3:455665.
CMDOFF/+[B]:xxx.
Power off the third-party device.
CMDOFF/+3:455666.
Note: When sending HEX commands in this box, the “/+[B]:” and the end mark “.”
must be converted to hexadecimal characters. For example, send the HEX
command “F0 01 01 02 0A” to the third-party whose baud rate is 9600. The “/+[3]:”
and the point “.” Is converted to “2F 2B 5B 33 5D 3A” and “2E”, thus the complete
HEX command is “2F 2B 5B 33 5D 3A F0 01 01 02 0A 2E”.