SY SY-MUHD-44 User manual

SY Electronics Ltd., 7 Worrall Street, Manchester, M5 4TH, United Kingdom
Tel: [phone] – Web: sy.uk
Installation Guide
SY-MUHD-44
and
SY-MUHD-88
4x4 HDMI 4K Matrix
8x8 HDMI 4K Matrix

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Thank you for purchasing this PRODUCT.
This PRODUCT is designed with the professional AV installers in mind. The many extensive
features assist with system integration, validation and maintenance.
Installation precautions
This product has special circuitry to protect it against moderate surges and static discharges.
However, to ensure reliable operation and long service life, it is important to take the
necessary precautions against any spikes, surges and static discharges.
Place the units away from heat sources and allow adequate ventilation.
Shielded cable and in particular cat6, cat6a or cat7 is highly recommended. As much as
possible signal cables should be routed away from any noisy sources and should avoid long
runs in close proximity to AC mains cables.

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CONTENTS
Features 4
Connectors and Controls 4
FRONT 4
REAR 5
Installation 5
Operation 5
FRONT PANEL CONTROL 5
LOCAL IR CONTROL 6
EDID SETTING 7
Display IP Information 8
Changing the DHCP Setting 8
Setting the Cascading Mode 8
RS232 Commands 9
SYSTEM INFORMATION 9
VIDEO SETTINGS 9
AUDIO SETTINGS 10
EDID SETTINGS 10
NETWORK SETTINGS 11
STATUS READ COMMANDS 12
CHARACTER CONVERSION TABLE 12
Using the Built-In Web Interface 12
VIDEO SWITCH TAB 13
AUDIO SWITCH TAB 13
EDID SWITCH TAB 13
Network Config Tab 15
Specifications 16
GENERAL 16
ENVIRONMENTAL 16
PHYSICAL 16
Package Contents 16
SAFETY INSTRUCTIONS 17
AFTER SALES SERVICE 17

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The SY-MUHD-44 and MUHD-88 are 4x4 and 8x8 true HDMI matrix switchers respectively. They
both support HDMI1.4b up to 4K video resolution and HDCP 1.4 and HDCP2.2. It allows any source
(BluRay player, HD DVD player, satellite receiver, game station, etc.) to be shown on the any of the
displays simultaneously, no matter whether the source is HDCP compliant or not.
These matrix switchers equalize and amplify the output to ensure the HDMI signal can be
transmitted through a long cable without loss of quality.
The SY-MUHD-44 and MUHD-88 offer solutions for digital entertainment centres, HDTV retail, show
sites, data centre control, information distribution, conference room presentation, school and
corporate training environments.
Features
⚫Supports HDMI 1.4b (10.2Gbps)
⚫Will accept all HDMI resolutions up to 4K60 4:2:0
⚫HDCP 1.4 and HDCP 2.2 compliant
⚫Easy to use: install in minutes, no need for special settings
⚫Allows 4/8 HDMI source devices to be independently switched to 4/8 HDMI monitors,
HDTVs, or projectors
⚫HDCP management: Pass or Cascade mode (page 8)
⚫Supports high definition resolutions 4K60 4:2:0, 4K30, 1080p, 1080i, 720p and standard
video format
⚫De-embedded L+R audio per output
⚫Four control mode options: front panel buttons and IR, RS232, LAN interface or ext. IR
Connectors and Controls
Front
Name
Description
Display Panel
Displays the current signal routing or menu options
IR
IR sensor window
INPUT
Input selection buttons
OUTPUT
Output selection buttons

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Rear
Name
Description
Audio
De-embedded analogue audio outputs (L + R)
Video Inputs
HDMI Input Ports
Video Outputs
HDMI Output Ports
IR ext.
Input for external IR Eye
RJ45
LAN WebGUI control port
RS232
RS232 control port (Tx & Rx only)
12V DC
12V DC PSU input
Installation
Connect the HDMI input sources into SY-MUHD-44/88
Connect the HDMI outputs into SY-MUHD-44/88
Power on the input sources you want to show
Connect the power supply into the SY-MUHD-44/88 and turn on the display you want to watch
Use the remote control or the front panel push buttons to choose input to output source
selection
Insert and remove HDMI cables carefully to avoid damaging the HDMI connectors on the matrix
switchers.
Operation
Front Panel Control
The MUHD-44 and MUHD-88 front panel controls allow for the selection of the inputs to the
various outputs. First press a button on the OUTPUT row to choose the output number the
change, then press a button on the INPUT to select the input signal for the selected output.
Figure 1- MUHD-44 Front Panel Controls

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Figure 2 - MUHD-88 Front Panel Controls
Local IR Control
Figure 3 - MUHD-44 IR Control
Figure 4 - MUHD-88 IR Control
The user can control the HDMI routing of the matrix by using the supplied IR remote.
The left arrow button selects the next lowest numbered input port, and the right arrow selects
the next highest numbered input port.
The IR remote controller for the MUDH-44 also allows direct selection of the inputs for each
output.
The IR remote control for the MUHD-88 allows the user to increase or decrease all eight of the
inputs source selections simultaneously with a single button press.
The supplied IR receiver cable can be used to provide a different receiver position. Simply plug
the cable into the IR Ext socket on the rear of the matrix switcher.

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EDID Setting
The matrix switcher has 12 predefined EDID settings, and 3 user programmable EDID memories.
The user EDID memories are independent to each input and can therefore be set differently for
each input. The matrix switcher can also be set to use the EDID information from any of the
output display devices.
To change the EDID setting, press and hold any INPUT button for 3 seconds and the LCD display
will show the current EDID setting for that input channel.
The EDID setting can be one of the following:
1：1080P 2CH (PCM)
2：1080P audio 5.1
3：1080P audio 7.1
4：1080P 3D 2CH (PCM)
5：1080P 3D audio 5.1
6：1080P 3D audio 7.1
7：4K30Hz 3D 2CH (PCM)
8：4K30Hz 3D audio 5.1
9：4K30Hz 3D audio 7.1
10：4K60Hz (Y420) 3D 2CH (PCM)
11：4K60Hz (Y420) 3D audio 5.1
12：4K60Hz (Y420) 3D audio 7.1
USER EDID 1
USER EDID 2
USER EDID 3
EDID from output 1
EDID from output 2
EDID from output 3
EDID from output 4
The first 12 EDID settings are factory set and cannot be altered. The 3 USER EDID memories can
only be programmed using RS232 commands. The EDID from any output can be programmed
either using the front panel controls as described below, or by using RS232 commands. Each
input presents its currently selected EDID setting to the HDMI source device, therefore only one
EDID setting is active at any instant, but this setting can be different for each input.
The following is an example of how to change the EDID setting for input 3:
User Action
LCD Text after User Action
Press and hold button 3 for 3 seconds.
Click button 3 to step to the next EDID setting.
(This step can be repeated until the desired EDID
setting is displayed)
Press and hold button 3 for 3 seconds to save the
setting.

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When the LCD shows the following text, or similar:
Then pressing and holding button 3 for three seconds will make the matrix switcher read the
EDID from the display device connected to the selected HDMI output and save it to the input
chosen as the first step in the above table.
Please always be aware that the EDID setting of each input is independent and that, therefore,
each input may need to be programmed separately.
Display IP Information
Press and hold buttons 3 and 4 for three seconds to display the current IP settings. The screen
will change every three seconds to display the next IP setting, but will always begin with the
current IP address of the matrix:
In order to prevent potential IP problems, most of the IP settings can only be programmed using
RS232 commands.
Changing the DHCP Setting
Press and hold buttons 1 and 3 for three seconds to change the DHCP setting. The LCD will show
the new DHCP setting:
or
Setting the Cascading Mode
When the cascading mode is enabled, the matrix will not read the EDID or Hot Plug Status from
any display device and will always output the HDMI signal. This mode should only be enabled if
the installation is experiencing some HDMI problems and enabling this mode solves the
problem. If the problems persist when the cascading mode is enabled, then there may be a
handshaking issue between the matrix and the display device.
The cascade mode is enabled when the LCD shows the following:

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RS232 Commands
The SY-MUHD-44 and SY-MUHD-88 4K switcher can also be controlled using RS232 commands.
The following table lists all the available commands that can be used to control or configure
these 4K switchers.
The baud rate settings are: 57600, 8 data bits, no parity, 1 stop bit and no handshaking.
In all the commands given in the tables below, all the indicated characters are required, but the
 character represents the carriage-return character, 0x0d.
Any command that is shown with brackets must include those brackets.
A number of commands given in the following tables, output a large amount of ASCII encoded
information that can be too much for systems where there is only a small amount of available
memory as this data can be several kilobytes long. The >@RH and >@RSTA commands should
be avoided whenever possible as the Read Status Commands can provide the same information
as >@RSTA, but only for a specific feature, and without any additional information to process
that is not relevant to the status of the requested feature. The >@RH command merely provides
a list of all the available commands with a brief description included for each one.
In the majority of cases, the command response is simply the command received by the 4K
Switcher with the first character changed to < (0x3c). Thus, the command to output 1 to show
input 2:
>@WSVO[1]I[2]will reply with <@WSVO[1]I[2]
System Information
The following provide basic system level control:
Command
Description
>@RH
Output help pages and command list
>@WSPF
Power off – turns the 4K switcher into standby mode
>@WSPN
Power on – sets the 4K switcher to normal operating mode
>@RSTA
Output the global system status information
>@WSDBGEN
Cascading mode enable
>@WSDBGDIS
Cascading mode disable
Video Settings
The following command provide selection of the video routing:
Command
Description
>@WVSO[x]I[y]
Set output x to input y
>@WVSOA[y] 
Set all outputs to input y
>@WVSO[x]ON
Enable video output x
>@WVSO[x]OFF
Disable video output x
>@WVSOAON
Enable all video outputs
>@WVSOAOFF
Disable all video outputs

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Audio Settings
These commands enable or disable the de-embedded analogue audio outputs:
Command
Description
>@WASO[x]E EN
Enable audio output x
>@WASO[x]E DIS
Disable audio output x
>@WASOAE EN
Enable all audio outputs
>@WASOAE DIS
Disable all audio outputs
EDID Settings
When using these commands, please note that there are 12 default EDID settings, and 3 User
programmable EDID memories per video input.
For the default EDID memories, the x value must be in the range 1 to 12 inclusive (leading zeros
are not required).
For the User EDID memories, the value x must be one of 1, 2 or 3.
Command
Description
>@WECO[x]I[y]
Read display EDID connected to output x and copy
it to input y
>@WECO[x]A
Read display EDID connected to output x and copy
it to all inputs
>@WECD[x]I[y]
Read EDID from Default EDID x and copy it to input
y
>@WECD[x]A
Read EDID from Default EDID x and copy it to all
inputs
>@WECU[z]I[y]
Read EDID from User EDID z of input y and copy it
to input y
>@WECU[z]A
Read EDID from User EDID z of input y and copy it
to all inputs
>@WEWI[y]U[z]O[x]
Copy EDID from Output x to the User EDID memory
z of Input y
>@WEWIAU[z]O[x]
Copy EDID from Output x to the User EDID memory
z of all Inputs
>@WEWI[y]U[z]L[n]D{XX,…}
Copy EDID data {XX,…} of length n to the User
EDID memory z of Input y
>@WEWIAU[z]L[n]D{XX,…}
Copy EDID data {XX,…} of length n to the User
EDID memory z of all Inputs

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The value n in the last two commands must be either 128 or 256 and the data block, {XX,…},
must contain 128 or 256 hexadecimal values respectively. Each of the hexadecimal values must
be represented by two ASCII characters and separated by commas, for example:
>@WEWIAU[1]L[128]D{
00,FF,FF,FF,FF,FF,FF,00,4C,2D,BE,0B,01,00,00,00,
02,18,01,03,80,59,32,78,0A,EE,91,A3,54,4C,99,26,
0F,50,54,BD,EF,80,71,4F,81,C0,81,00,81,80,95,00,
A9,C0,B3,00,01,01,04,74,00,30,F2,70,5A,80,B0,58,
8A,00,50,1D,74,00,00,1E,02,3A,80,18,71,38,2D,40,
58,2C,45,00,50,1D,74,00,00,1E,00,00,00,FD,00,18,
4B,0F,87,3C,00,0A,20,20,20,20,20,20,00,00,00,FC,
00,53,41,4D,53,55,4E,47,0A,20,20,20,20,20,01,9A,
02,03,3A,F1,57,61,10,1F,04,13,05,14,20,21,22,5D,
5E,5F,60,65,66,62,63,64,07,16,03,12,23,09,07,07,
83,01,00,00,E2,00,0F,6E,03,0C,00,40,00,88,1E,21,
00,80,01,02,03,04,E3,0F,01,E0,01,1D,80,D0,72,1C,
16,20,10,2C,25,80,50,1D,74,00,00,9E,66,21,56,AA,
51,00,1E,30,46,8F,33,00,50,1D,74,00,00,1E,00,00,
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,67}
Ideally, the proper EDID values should be placed into a text file as a single line and then sent to
the matrix switcher using a serial emulator program. The data given above is only an example
and may not be compatible with the display devices connected to the matrix switcher.
Network Settings
Command
Description
>@WIPDP ON
Enable DHCP mode
>@WIPDP OFF
Disable DHCP mode
>@WIPH
xxx.xxx.xxx.xxx
Set (4K Switcher) Host IP address to xxx.xxx.xxx.xxx
>@WIPN
xxx.xxx.xxx.xxx
Set (4K Switcher) Subnet Mask to xxx.xxx.xxx.xxx
>@WIPR
xxx.xxx.xxx.xxx
Set Default Gateway IP address to xxx.xxx.xxx.xxx
>@WIPP zzzz
Set TCP/IP port to zzzz
When shipped from SY, the default IP settings are:
DHCP
OFF
Host IP Address
192.168.001.239
Subnet Mask
255.255.255.0
Default Gateway IP Address
192.168.001.001
TCP/IP Port
23

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Status Read Commands
Command
Description
>@R8001
Read the input link states, i.e. list all the inputs and show
which ones have a signal connected to them.
>@R8002
Read output link states, i.e. list all the outputs and show
which ones have a signal connected to them.
>@R8003
Read the input HDCP states, i.e. list all the inputs and
show their HDCP status.
>@R8004
Read the output HDCP states, i.e. list all the outputs and
show their HDCP status.
>@R8006
Read output channel set states
>@R8007
Read output On/Off states
>@R8008
Read external audio output enable states
>@R8009
Read input EDID states, i.e. List the EDID memory
currently for each of the inputs
>@R8010[y]
Read the EDID data currently set for Input y
>@R8011[x]
Read the EDID data from Output x
>@R8012
Read network status
>@R8017
Read the Cascading Mode Enable/Disable status
Character Conversion Table
Standard ASCII characters are used for all RS232 commands, but the following table will be
useful in coding the punctuation characters used in the above RS232 command tables.
ASCII
Hex
ASCII
Hex
ASCII
Hex
ASCII
Hex

0x0d
<
0x3c
>
0x3e
@
0x40
[
0x5b
]
0x5d
{
0x7b
}
0x7d
Using the Built-In Web Interface
Both the MUHD-88 and MUHD-44 devices feature a built-in web interface that allows control of
the matrix switcher from any web browser. The following factory default settings will access the
web interface on a fresh product:
IP Address: 192.168.1.239
Subnet mask: 255.255.255.0
Gateway: 192.168.1.1
TCP Port: 23
If the above settings have been changed then you will need to use the new settings instead. If
you do not know the current IP settings, use either the front panel LCD or send the RS232
command >@R8012 to the matrix switcher to determine the current IP settings.
After entering the IP settings into a web browser, the following screen should appear:

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Figure 5 – Video Switch Web Interface Tab
This screen is for the MUHD-88, the MUHD-44 will look similar, just with fewer selection buttons.
The actual positions of the darker buttons will always match with the current video selections of
the matrix switcher and will look different to the image shown above.
Video switch Tab
The Video Switch tab allows the user the change the video selection status of the switcher.
Audio switch Tab
The Audio Switch tab, shown on the next page, allows the user to set the analogue audio outputs
to ON or OFF.
EDID Switch Tab
The EDID Switch tab, shown on the next page, permits the selection of one of the 12 the built-
In EDID options as detailed in the EDID Setting section above, copying from any of the available
outputs or selecting one of the three pre-programmed User EDID memories for each input
separately.

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Figure 6 - Audio Switch Web Interface Tab
Figure 7 - EDID Settings Web Interface Tab

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Figure 8 - Network Settings Web Interface Tab
Network Config Tab
The Network Config tab allows you to view and change the network settings. Whenever the
settings are changed always keep a record of the new settings or use the >@R8012 RS232 to
view the current settings in a terminal emulation program.
The RS232 command give above will give the following single-line response:
IPH[010][008][000][131] IPR[010][008][000][001]
IPN[255][000][000][000] IPHW[7C][CB][E2][60][00][AF] IPP[23]
IPDP[N]
Each number or setting is always enclosed in square brackets. The example above matches with
the image shown above and is therefore different to the actual unit in use.
IPH is the IP address of the matrix switcher (Host IP)
IPR is the IP address for the network router (gateway)
IPN is the network subnet mask
IPHW is the MAC address
IPP is the TCP/IP port
IPDP indicates whether the DHCP mode is enabled or not
If you change the network settings, click the apply button and wait for five seconds before
entering the new settings into your browser. If you use the DHCP mode, then the RS232
command given above will reveal the new network settings.
The Port Alias Setting section allows for renaming the inputs and outputs shown on the Video
Switch, Audio Switch and EDID Switch tabs. However, please note that there is a maximum limit
of seven characters for each name entry. After changing the names and clicking the Apply button
below the edit boxes, you will need to refresh the browser to see new changes.

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Specifications
General
Parameter
SY-MUHD-44
SY-MUHD-88
HDMI Inputs
4
8
HDMI Outputs
4
8
Analogue audio outputs (Stereo)
4
8
Video Format Supported
Supports all HDMI resolutions up to 4K30 4:4:4 and
4K60 4:2:0
Output Video
HDMI2.0 and HDMI 1.4b
Audio Formats Supported
L-PCM, DTS-HD, Dolby TrueHD
Maximum Transmission Distance
Less than 15m
Audio output
L+R 0.7 rms (20Hz to 20KHz)
Communication Ports
RS232, IR, Ethernet
RS232 Settings
Baud rate: 57600,n,8,1
Default IP Settings
IP Address: 192.168.1.239
Subnet: 255.255.255.0
Supply Voltage
12V DC
Power Consumption
15W (max.)
Environmental
Operating Temperature Range
0 to +35°C (32 to +95°F)
Operating Humidity Range
10 to 90% RH (non-condensing)
Physical
Dimensions
L 440 x W 256 x H 42 mm
19” Rack height: 1U
Weight
2.1 kg
2.4 kg
Package Contents
1x Main unit
1x 12V DC PSU
1x User manual
1x UK or EU to IEC 60320 Type C7 (figure-of-eight) cable
1x IR remote control
1x IR receiver (eye) with self-adhesive pad
1x Pair 19” rack mounting brackets
6x M3 x 8 screws for the mounting brackets
SY-MUHD-44 – 5x Three-Way pluggable screw terminal connectors
SY-MUHD-88 – 9x Three-Way pluggable screw terminal connectors

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Safety Instructions
To ensure reliable operation of these products as well as protecting the safety of any person
using or handling these devices while powered, please observe the following instructions:
1. Use the power supply provided. If an alternate supply is required, check Voltage,
polarity and that it has sufficient wattage to power the device it is connected to.
2. Do not operate either of these products outside the specified temperature and
humidity range given in the above specifications.
3. Ensure there is adequate ventilation to allow this product to operate efficiently.
4. Repair of the equipment should only be carried out by qualified professionals as these
products contain sensitive devices that may be damaged by any mistreatment.
5. Only use these products in a dry environment. Do not allow any liquids or harmful
chemicals to come into contact with these products.
6. Due to the weight and physical size of some of these matrix switchers, correct Manual
Handling and Lifting procedures should be observed at all times while handling these
products in order to minimise the risk of injury.
After Sales Service
1. Should you experience any problems while using this product, firstly refer to the
Troubleshooting section in this manual before contacting SY Technical Support.
2. When calling SY Technical Support, the following information should be provided:
•Product name and model number
•Product serial number
•Details of the fault and any conditions under which the fault occurs.
3. This product has a two year standard warranty, beginning from the date of purchase as
stated on the sales invoice. Online registration of this product is required to activate the
full three year extended warranty. For full details please refer to our Terms and
Conditions.
4. SY Product warranty is automatically void under any of the following conditions:
•The product is already outside of its warranty period
•Damage to the product due to incorrect usage or storage
•Damage caused by unauthorised repairs
•Damage caused by mistreatment of the product
5. Please direct any questions or problems you may have to your local dealer before
contacting SY Electronics.

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