Abtus AVA-EXHD14/8K User manual

ABtUS SINGAPORE PTE LTD www.abtussingapore.com
ABtUS SIGAPORE PTE LTD www.abtussingapore.com
Model: AVA-EXHD14/8K
21.11.2023
1x4 HDMI V2.1
8K Splitter with
Audio Out

User Operation Guide
2
PRODUCT DESCRIPTION
FEATURES
AVA-EXHD14/8K HDMI V2.1 1x4 Splitter, which can distribute one HDMI input to
two outputs. The splitter supports HDMI video resolution up to 8K@60Hz 4:4:4
and DTS/Dolby audio formats. Besides passing EDID information from the display,
there are multiple built-in EDID settings can be selected by the 4-pin DIP switch.
Moreover, the splitter supports convenient firmware upgrade through type-C port.
● Supports HDMI V2.1 and the video resolution up to 8K@60Hz 4:4:4.
● HDMI input supports HDCP 2.3 and the outputs support HDCP Active or HDCP Passive
mode.
● Supports video resolution down-scaling, the 8K/4K input can be automatically degraded to
4K/1080p output for compatibility with 1080p display.
● 48Gbps high bandwidth.
● Advanced EDID management: multiple built-in EDID and user defined settings can be
selected.
● Supports ALLM, VRR and audio de-embedding
● Supports CEC pass-through.
● Provides LEDs to indicate the current operating status.
● Firmware upgrade by USB-C port.

*Specications are subject to changes without notice. 3
PANEL DESCRIPTION
12 3
1. INPUT: Type-A female HDMI input port to connect a HDMI source.
2. OUTPUTS: Two type-A female HDMI output ports to connect HDMI displays.
3. DC 12V: DC port to connect DC power adapter.
Rear Panel
1. POWER LED: The LED illuminates green when power is applied.
2. INPUT and OUTPUT LEDS: The LED illuminates blue when there is HDMI input or
HDMI output on the corresponding channel.
3. AUDIO OUT: Output de-embedded audio from HDMI IN.
4. EDID: 4-pin DIP switch for EDID setting and HDCP mode selection. Please refer to
the EDID Management for more details.
5 CEC: Used for CEC on/off.
6 FW: USB-C port for firmware upgrade
1 2 3 4 5 6
Front Panel

4
DIP SWITCH OPERATION
Switch 1~3 are used for EDID setting. The DIP switch status and its corresponding setting
are shown at the back of the product.
EDID Management
The Extended Display Identification Data (EDID) is used by 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 splitter, the DIP switch on the front panel can be used to set the EDID
to a fixed value to ensure the compatibility in video resolution.
The switch represents “0” when in the lower (OFF) position, and it represents “1” while
putting the switch in the upper (ON) position.

*Specications are subject to changes without notice. 5
DIP SWITCH OPERATION
HDCP Mode
Put switch 4 on “ON” position to select HDCP Active mode, or to “OFF” for HDCP Passive
mode.
5
Switch 1~3 are used for EDID setting. The DIP switch status and its corresponding setting
are shown at the back of the product.
Switch Status Video Resolution Audio Format
000
Obtain the EDID of output 1-4, then compare EDIDs and output the
highest level of video resolution and the lowest color space.
Example: If there is 4:4:4 and 4:2:0 color space, it will retain the 4:2:0 after
compare procession, and if there is 8K, 4K and 1080P, the machine will output
the 8K resolution.
Note: The output EDID supports up to 8K @ 60 4:2:0
001
Priority the EDID of output 1, when the output 1 EDID can’t read,
compare the output 2-4 EDIDs and then output the highest level of
video resolution and the lowest color space.
010 4K @ 60Hz 4:4:4 HDR DTS/Dolby
011 4K @ 120Hz 4:2:0 HDR LPCM
100 4K @ 120Hz 4:4:4 HDR DTS/Dolby
101 8K @ 30Hz 4:4:4 HDR DTS/Dolby
110 8K @ 60Hz 4:4:4 HDR DTS/Dolby
111 User Defined
6
EDID Upgrade
1. Connect the FW port on the front panel of the machine to be tested to the computer
with a USB Type-A to Type-C cable, and power on the machine to be tested;
2. Open the serial port tool on the computer, select the correct serial port number and
baud rate 115200, and power on the device under test;
3. Send the command > EDIDUpgrade first, and then select the EDID file to be uploaded
4. Click Upload. When you receive a successful feedback, it means that the EDID has
been uploaded successfully. Otherwise, please repeat the above steps.
HDCP Mode
Put switch 4 on “ON” position to select HDCP Active mode, or to “OFF” for HDCP
Passive mode.
Switch Status Mode HDCP
OFF (0) Passive
(Default) Automatically follows the input’s HDCP version.
ON (1) Active The HDCP supports up to 1.4 version; and if the input is
not HDCP, the output is also without HDCP.
Firmware Upgrade
Please follow the below steps to upgrade firmware by the FW port:
1. Connect the FW port on the front panel of the machine to the computer with an
appropriate USB cable, and power on the machine;
2. Open the stm32_upgrade.exe upgrade tool on the computer, select the correct serial
port number and baud rate 115200;
3. Click the Open button first, and then click the Connect button. The Connect button
turns green to indicate that it is connected, and the button turns to red to indicate
that the connection is not successful;
4. Click the OpenFile button to load the application layer corresponding to the machine,
and click the Upgrade button to start the upgrading procedure.
Note: 08009000 must be added after the firmware name to be recognized by this
software.