ALFAtron ALF-MUK44N User manual

www.alfatronelectronics.com
ALFATRON ELECTRONICS GmbH
GERMANY
ALF-MUK44N
4K 4x4 Matrix with Audio Outputs

ALF-MUK44N
Preface
Read this user manual carefully before using this product. Pictures shown in
this manual is for reference only, different model and specifications are
subject to the real product.
This manual is only for operation instruction, not for any maintenance usage.
The functions described in this version are updated till March 2017. Any
changes in functions and parameters since then will be informed separately.
Please refer to the dealers for the latest details.
Trademarks
Product model and logo are trademarks. Any other trademarks mentioned in
this manual are acknowledged as the properties of the trademark owner. No
part of this publication may be copied or reproduced without the prior written
consent.
FCC Statement
This equipment generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. It has been tested and found
to comply with the limits for a Class B digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a commercial installation.
Operation of this equipment in a residential area is likely to cause
interference, in which case the user at their own expense will be required to
take whatever measures may be necessary to correct the interference
Any changes or modifications not expressly approved by the manufacture
would void the user’s authority to operate the equipment.

ALF-MUK44N
Do not dispose of this product with the normal household waste at
the end of its life cycle. Return it to a collection point for the
recycling of electrical and electronic devices. This is indicated by
the symbol on the product, user manual or packaging. The
materials are reusable according to their markings. By reusing,
recycling or other forms of utilisation of old devices you make an
important contribution to the protection of our environment. Please
contact your local authorities for details about collection points.

ALF-MUK44N
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

ALF-MUK44N
Table of Contents
Introduction.................................................................................................... 1
Features ................................................................................................... 1
Package Contents .................................................................................... 2
Panel ........................................................................................................ 3
Front Panel........................................................................................ 3
Rear Panel ........................................................................................ 4
Installation and Application .......................................................................... 5
Brackets Installation.................................................................................. 5
Steps to install the device in a suitable location ................................ 5
Application ................................................................................................ 6
IR Remote Control ......................................................................................... 7
RS-232 Control............................................................................................... 9
Web UI Control............................................................................................. 10
Access the Web Interface....................................................................... 10
Web Interface Introduction...................................................................... 11
General............................................................................................ 11
Advanced ........................................................................................ 15
Specifications .............................................................................................. 21
Trouble Shooting ......................................................................................... 24
Warranty ....................................................................................................... 25

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1
Introduction
Overview
The ALF-MUK44N 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 and IP), but also
advanced functions such as auto-downscaling for each HDMI output when it
is connected to 1080P display. There is a 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 4:4:4.
HDCP2.2 compliant.
With built-in 4K-1080P downscaling for each HDMI Output, the matrix
can downscale 4K@60Hz 4:4:4 to 1080P@60 4:4:4. 4K downscaling
works automatically when the matrix is connected to a 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 (High Bit Rate) 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 as the four SPDIF outputs can be muted separately
by API commands.

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Supports upgrading firmware via both micro-USB and web UI (for MCU
and web module).
Rich control options, including RS-232, IR, IP Control and front panel
buttons control.
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

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3
Panel
Front Panel
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)
Press to select input source for each output (1-4)
separately.

ALF-MUK44N
4
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 a Blu-ray
Player.
3 HDMI Out 1-4 Connect to HDMI displays.
4 FW For firmware upgrade.
5 RS-232 Connect to a control PC or control system for
RS-232 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.

ALF-MUK44N
5
Installation and Application
Bracket 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 are
provided in the package separately.
2. The bracket is attached to the enclosure as shown below.
3. Repeat steps from 1 to 2 for the other side of the unit.
4. Attach the brackets to the desired surface using the screws
(separately).

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6
Application
Blu-rayPlaye r
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.

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7
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
pictures:
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

ALF-MUK44N
8
for your target output.
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

ALF-MUK44N
9
RS-232 Control
Advanced users may need to control the matrix through RS-232 serial
communication. Connect a control PC or control system to the RS-232 port of
the receiver. API commands for RS-232 control is available in the separate
document “API Command Set_ALF-MUK44N”. A 3rd party RS-232 serial
interface software may be required for testing or debugging.
Before executing the API command through an RS-232 serial connection,
please ensure the RS-232 interface of the device and the control PC are
configured correctly.
Serial Port Parameters and settings:
Parameters Value
Baud Rate 115200 bps
Data Bits 8 bits
Parity None
Stop Bits 1 bit
Flow Control None

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10
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 such as,
Chrome, Firefox, Safari, Opera, IE10+, etc.
Accessing 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_ALF-MUK44N”).
3. Input the IP address in your browser and press Enter to enter the login
page.
4. Enter the username and password on the login page, then click “Login”.
5. The default username and password are both “admin”.

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11
Web Interface Introduction
The main screen includes General and Advanced Setting.
General
The General Page includes: Switch, EDID, EDID Read, CEC, Audio Mute,
HDCP and 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,
i.e. 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.

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(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.
EDID Read
Click “Enter” to open the EDID Setting page.

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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.
(3) CEC

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14
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.
(4) 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.
(5) HDCP

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15
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.
(6) 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 settings is used to toggle between the dynamic and static IP