AV Access 4KMX44-H2 User manual

4KMX44-H2
4x4 Matrix with Audio Outputs
User Manual

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accurate. AV Access Technology Limited assumes no responsibility for any
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use.
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may be contained in this document. AV Access Technology Limited also makes no
commitment to update or to keep current the information contained in this
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document and/or product at any time and without notice.
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are reserved. Copyright ©2017 AV Access Technology Limited All rights reserved.
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Important Safety Instructions
Do not expose this device to rain, moisture, dripping or splashing. No objects
filled with liquids, such as vases, shall be placed on the device.
Do not install or place this unit in a bookcase, built-in cabinet, or in another
confined space. Ensure the unit is well ventilated.
To prevent risk of electric shock or fire hazard due to overheating, do not
obstruct the unit’s ventilation openings with newspapers, tablecloths,
curtains, or similar items.
Do not install near any heat sources such as radiators, heat registers, stoves,
or other device (including amplifiers) that produce heat.
Do not place sources of naked flames, such as lighted candles, on the unit.
Clean this device only with dry cloth.
Unplug this device during lightning storms or when unused for long periods
of time.
Protect the power cord from being walked on or pinched, particularly at
plugs.
Only use attachments / accessories specified by the manufacturer.
Refer all servicing to qualified service personnel

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Table of Contents
Introduction..........................................................................................................2
Features .................................................................................................................................... 2
Package Contents.................................................................................................................. 3
Panel .......................................................................................................................................... 4
Front Panel...................................................................................................................... 4
Rear Panel ....................................................................................................................... 4
Installation and Application.................................................................................6
Brackets Installation.............................................................................................................. 6
Steps to install the device in a suitable location................................................. 6
Application .............................................................................................................................. 7
IR Remote Control.................................................................................................8
RS232 Control .....................................................................................................10
Web UI Control....................................................................................................11
Access the Web Interface .................................................................................................. 11
Web Interface Introduction .............................................................................................. 11
General .......................................................................................................................... 12
Advanced...................................................................................................................... 15
Specifications .....................................................................................................20
Trouble Shooting................................................................................................22
Warranty .............................................................................................................23

Introduction
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Introduction
Overview
4KMX44-H2 is a 4x4 compact HDMI matrix switcher, specially designed for cost
conscious projects and buyers. It features not only basic functions like cross-point
switching and control (IR, RS-232, IP), but also advanced functions like
auto-downscaling for each HDMI output when it is connected to 1080P display.
There’re SPDIF audio breakout for each HDMI output, to provide more audio feeds
to multi-zone audio system.
Features
4 HDMI Inputs and 4 HDMI Outputs.
All HDMI inputs and outputs support HDMI with HDR formats, including HDR
10, HLG, DOLBY VISION up to 4K@60 444.
HDCP2.2 compliant.
With built-in 4K-1080P downscaler for each HDMI Output, the matrix can
downscale 4K@60Hz 4: 4: 4 to 1080P@60 4: 4: 4. 4K downscaler can work
automatically when the matrix is connected to 1080P display and can be set
to ON/OFF by API commands.
Each HDMI output has a SPDIF audio breakout, and supports formats up to
5CH HBR or 2CH PCM audio.
Supports smart EDID, each input can be assigned to smart EDID mode.
Supports EDID presets, EDID copy and EDID write. By default, each input
EDID is set as 4K@60 4: 4: 4 HDR with 5.1CH encoded audio.
Supports audio mute, four SPDIF outputs can be muted separately by API
commands.
Supports upgrading firmware via both micro-USB and web UI (for MCU and

Introduction
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web module).
Rich control options, including RS232 control, IR, IP Control and front panel
buttons control.
Package Contents
Before you start the installation of the product, please check the package
contents:
Matrix x 1
Power Adapter (DC 12V 2A) x 1
AC Power Cord with US Pins x 1
IR Remote x 1
IR Receiver x 1
Phoenix Male Connector (3.5mm, 3-Pin) x 1
Mounting Brackets (with Screws) x 2
User Manual x 1

Introduction
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Panel
Front Panel
1 2 3 2 3 2 3 2 3
No. Name Description
1 IR Window Receive IR signals.
2 Input LED (1-4) On: The current HDMI input is selected.
Off: The current HDMI input is not selected.
3 Output Selection
Button (1-4)
Click to select input source for Output (1-4)
separately.
Rear Panel
1
4 5 6 78
2 3
No. Name Description
1 DC 12V Connect to the DC 12V power adapter provided.
2 HDMI In 1-4 Connect to HDMI sources such as Blu-ray Player.

Introduction
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No. Name Description
3 HDMI Out 1-4 Connect to HDMI displays.
4 FW For firmware upgrade.
5 RS232 Connect to a control PC or control system for RS232
serial control.
6 IP Control Connect to local area network or a control system for
telnet or Web UI control.
7 IR Ext. Connect to the IR receiver cable provided.
8 SPDIF Out 1-4 Connect to audio devices such as AV system for digital
de-embedded audio output from HDMI OUT 1-4.

Installation and Application
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Installation and Application
Brackets Installation
Note: Before installation, please ensure the device is disconnected from the
power source.
Steps to install the device in a suitable location
1. Attach the installation bracket to the enclosure using the screws that were
provided in the package separately.
2. The bracket is attached to the enclosure as shown.
3. Repeat 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).

Installation and Application
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Application
Blu-rayPlayer
PC
PC
DisplayDisplay
Display
Amplifier
Ethernet Switch Router
1
Connect the HDMI
sources (such as PC,
Blu-ray player, Apple
TV, 4K media player,
etc) to the HDMI In
1-4
2
Connect HDMI
display device
(such as TV, p
rojector, LED/LCD
display) to the
HDMI Out 1-4.
3
Connect audio
devices to SPDIF
Out (1-4) ports,
SPDIF Out ports
can output audio
de-embedding
from HDMI Out 1-4.
33
4
Connect for additional
control options: RS232 Control,
IP Control or IR Control.
5
Connect the
DC 12V
power cord
provided.

IR Remote Control
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IR Remote Control
You can switch among multiple inputs for each output display by pointing the
matrix IR remote directly at the IR window on the front panel or the IR receiver
connected to the rear panel.
Steps for IR Remote Operation:
1. Point the matrix IR Remote directly at the IR window on front panel or at the
IR receiver connected to the rear panel. As shown in the following picture:
Point the IR Remote at the
IR window directly
Point the IR remote at the
IR receiver head directly
2. Locate the target output you want to switch inputs for on the remote,
numbered 1-4 vertically along the right side.
3. Press the desired input number to select the corresponding input source for
your target output.

IR Remote Control
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Select previous input
for Output 1
Select next input
for Output 1
Output 1
Select specific input
for Output 1
4. To cycle through multiple inputs for your target output, press the previous
() or next ( ) button.
Virtual IR Code Supported by Default (Matrix Switching Code):
Code IN1 IN2 IN 3 IN 4
OUT 1 0X80 0X81 0X82 0X83
OUT 2 0X90 0X91 0X92 0X93
OUT 3 0XA0 0XA1 0XA2 0XA3
OUT 4 0XB0 0XB1 0XB2 0XB3

RS232 Control
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RS232 Control
Advanced users may need to control the matrix through RS232 serial
communication. Connect a control PC or control system to the RS232 port of the
receiver. API command for RS232 control is available in the separate document
“API Command Set_4KMX44-H2”. A professional RS232 serial interface software
(e.g. Serial Assist) may be needed as well.
Before executing the API command through RS232 serial connection, please
ensure RS232 interface of the device and the control PC are configured correctly.
Parameters Value
Baud Rate 115200 bps
Data Bits 8 bits
Parity None
Stop Bits 1 bit
Flow Control None

Web UI Control
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Web UI Control
The Web UI designed for the matrix is available for switching control, general and
advanced settings. The Web UI is accessible through a browser with latest version,
e.g. Chrome, Firefox, Safari, Opera, IE10+, etc.
Access the Web Interface
1. Connect the IP Control port of the matrix to the Ethernet switch, and
connect your PC to the same network.
Note:The IP mode of the matrix is DHCP, please ensure the Ethernet switch
is connected to a DHCP server.
2. Use the tool such as SmartSetGUI to search the IP address of the device or
send API command to get IP address (See the separate document “API
Command Set_4KMX44-H2”).
3. Input the IP address in your browser and press Enter to enter the login page.
4. Enter the username and password in the following login page, then click
“Login”. The default username and password are both “admin”.
Web Interface Introduction
The main screen includes General and Advanced Setting.

Web UI Control
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General
The General Page includes: Switch, EDID, EDID Read, CEC, Audio Mute, HDCP,
Preset.
(1) Switch
The Switch section manages distribution of input sources to output displays.
By default, Input 1 corresponds to Output 1, Input 2 corresponds to Output 2,
Input (n) corresponds to Output (n), n = 1, 2, 3, 4.
Click the button in the table to select the input for the output display (button
turns from white to green once selection is done).
ALL: Click to switch INPUT (n) for all OUTPUTs.
(2) EDID
This section allows you to configure EDID settings of each input port.
Select the item from the drop-down menu, then click “Apply” to take effect.
Note: If EDID copy fails, the input EDID will be 4K@30Hz 2.0ch audio.
By default, input EDID is set as 4K@60Hz 5.1ch audio With HDR.

Web UI Control
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(3) EDID Read
Click “Enter” to open the EDID Setting page.
Select Port: Click from the drop-down menu to choose an Output port (1-4)
for EDID setting.
Read: Click to read the EDID of the Output port you choose.
Write: Click to write the EDID of the Output port you choose to
corresponding Input selected by the output.
Save: Click to save the EDID of the Output as bin file to a desired location.
Open: Click to open an EDID file from the local PC. Then you can click "Write"
to write the EDID information instead of Output port's EDID to
corresponding Input.

Web UI Control
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(4) CEC
Output Port: Select one Output (1-4) port or all from the drop-down menu
to control.
Note: When Output port is set to “all”, the Auto CEC and Delay Time (min)
settings are disabled.
Manual (ON/OFF): Click “ON/OFF” button to power on/off the CEC-enabled
display immediately.
Auto CEC: Click “ON/OFF” button to set Auto CEC control enable/disable.
The default setting is “ON”.
Delay Time (min): Click the up/down arrow to set the time for the display to
power off automatically when no signal is present. Then click “Apply” to take
effect. For example, if Auto control is set as on and the time is set to 2
minutes, click “Apply”, the output display will power off automatically when
there’s no signal at the display for 2 minutes.
(5) Audio Mute
ON/OFF: This section allows you to set Audio output (1-4) mute to ON/OFF.
The default setting is OFF.
Note: The SPDIF Out 1-4 is following the audio output of HDMI OUT.

Web UI Control
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(6) HDCP
HDCP Support allows you to enable or disable HDCP compatibility of each input.
By default, HDCP Support is switched ON at each input and content protected by
HDCP standard will be received.
(7) Preset
The Preset section saves or loads the Switch settings to or from the matrix.
Advanced
The Advanced page includes: Network, Login Password, Custom Web UI Logo,
WEB Firmware Upgrade, ARM Firmware Upgrade, MCU Firmware Upgrade, System,
Firmware Version.
(1) Network
Network is used to toggle between the dynamic and static IP addressing.
DHCP: When enabled, the IP address of the Matrix is assigned automatically

Web UI Control
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by the DHCP server connected.
Static: When enabled, set up the IP address manually.
Apply: Click to enable the network setting.
The default setting i s D H C P.
Note:
When “Static” is selected, please ensure your PC is in the same network
segment as the Matrix, i.e. the IP address of your PC should be set as
192.168.xxx.xxx (x is suggested among 2 to 253).
Please wait for 2-3 minutes for the Matrix’s LAN module to reboot and
reconnect after the network setting is changed.
(2) Login Password
This section allows you to change login password. The default password is
“admin”.
Apply: Click to save the changes.
Note: The new password must be 4 to 16 characters in length (alphanumeric
only).
(3) Custom Web UI Logo
Custom Web UI Logo allows you to create your own logo for the Web UI you are
using.

Web UI Control
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To create customized Web UI logo:
1) Click “Browse” button to browse the LOGO file.
2) Click “Apply”, the following window will appear. Click "here" to reconnect the
system. When completed, the new logo will appear on the upper left corner
of the screen.
(4) WEB Firmware Upgrade
1) Click “Browse” for the update file.
2) Click "Update" to start the Web UI upgrade.
3) The matrix LAN Module will update and reboot automatically when Web UI is
completed. Please wait for about 3 minutes and then refresh and log in
again.
Note: DO NOT disconnect the matrix during update process.
(5) ARM Firmware Upgrade
1) Click “Browse” for the update bin file.
2) Click "Upgrade" to start the ARM Firmware upgrade.
3) The matrix will upgrade and reboot automatically when upgrading ARM is