Comm-Tec MUH44UH User manual

MUH44UH
4K HDBaseT 4x4 Matrix Switcher
All Rights Reserved
Version: MUH44UH_2014V1.0
User Manual

4K 4x4 HDBaseT Matrix Switcher
Comm-Tec S.r.l. 1 www.comm-tec.it
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 real
product.
This manual is only for operation instruction only, not for any maintenance usage. The
functions described in this version are updated till August 2014. Any changes of
functions and parameters since then will be informed separately. Please refer to the
dealers for the latest details.
All product function is valid till 2014-10-10.
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 A 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.

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SAFETY PRECAUTIONS
To insure the best from the product, please read all instructions carefully before using
the device. Save this manual for further reference.
Unpack the equipment carefully and save the original box and packing material for
possible future shipment
Follow basic safety precautions to reduce the risk of fire, electrical shock and injury
to persons.
Do not dismantle the housing or modify the module. It may result in electrical shock
or burn.
Using supplies or parts not meeting the products’ specifications may cause
damage, deterioration or malfunction.
Refer all servicing to qualified service personnel.
To prevent fire or shock hazard, do not expose the unit to rain, moisture or install
this product near water.
Do not put any heavy items on the extension cable in case of extrusion.
Do not remove the housing of the device as opening or removing housing may
expose you to dangerous voltage or other hazards.
Install the device in a place with fine ventilation to avoid damage caused by
overheat.
Keep the module away from liquids.
Spillage into the housing may result in fire, electrical shock, or equipment damage.
If an object or liquid falls or spills on to the housing, unplug the module immediately.
Do not twist or pull by force ends of the optical cable. It can cause malfunction.
Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to
the device before cleaning.
Unplug the power cord when left unused for a long period of time.
Information on disposal for scrapped devices: do not burn or mix with general
household waste, please treat them as normal electrical wastes.

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Contents
1. Introduction.................................................................................................................5
1.1 Introduction to the MTX44UH ............................................................................5
1.2 Features ............................................................................................................5
1.3 Package List ......................................................................................................6
2. Product Appearance of the MTX44UH........................................................................6
2.1 Front Panel ........................................................................................................6
2.2 Rear Panel.........................................................................................................7
3. System Connection.....................................................................................................8
3.1 System Applications ..........................................................................................8
3.2 Usage Precautions ............................................................................................8
3.3 Connection Diagram..........................................................................................8
3.4 Connection Procedure.......................................................................................9
3.5 Connection with TP513HDR............................................................................10
4. System Operations ...................................................................................................10
4.1 Front Panel Button Control ..............................................................................10
4.1.1 Switching I/O connection .......................................................................10
4.1.2 EDID Management ................................................................................11
4.1.3 Inquiry....................................................................................................13
4.1.4 Clear operation ......................................................................................14
4.2 IR Control ........................................................................................................14
4.2.1 Usage of IR Remote ..............................................................................14
4.2.2 IR Operations ........................................................................................15
4.3 RS232 Control .................................................................................................18
4.3.1 Connection with RS232 Communication Port........................................18
4.3.2 Installation/uninstallation of RS232 Control Software ............................18
4.3.3 Basic Settings........................................................................................18
4.3.4 RS232 Communication Commands ......................................................19
4.3.5 RS232 Control Modes ...........................................................................26
4.3.6 Control 3rd-Party Device from Local......................................................26
4.3.7 Bi-directional RS232 Control .................................................................27
4.4 TCP/IP Control.................................................................................................28

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4.4.1 Control Modes .......................................................................................28
4.4.2 GUI for TCP/IP control...........................................................................29
4.4.3 GUI Update............................................................................................32
4.5 Firmware Update via USB ...............................................................................32
5. Specification .............................................................................................................34
6. Panel Drawing ..........................................................................................................35
7. Troubleshooting & Maintenance ...............................................................................36
8. After-sales Service....................................................................................................38

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1. Introduction
1.1 Introduction to the MTX44UH
MTX44UH is a professional 4x4 HDBaseT Matrix Switcher that accommodates 4 HDMI
IN (4k signal at max), 4 auxiliary audio IN, 4 IR IN.
Select HDMI input by front panel buttons, IR, RS232, or GUI. The selected source is
delivered to HDMI Output 1~2 (for HDMI input 1~2) & HDBaseT outputs 1~4 (easy
extension to 70m at 1080p and 35m at 4Kx2K on a single CAT5e/6 connection with
HDBaseT receivers, with PoC) simultaneously. The unit also supports EDID
management and HDCP.
Except embedded HDMI audio, MTX44UH provides 4 auxiliary audio inputs. Audio
source is selectable via RS232 command. Selected audio is output via HDMI outputs&
HDBaseT outputs and the audio output sockets.
The unit also supports bi-directional RS232& IR control.
1.2 Features
Support HDMI 1.4, support 4Kx2K& 1080p 3D
HDCP1.4 compatible, support manual HDCP management and auto-detecting
Transmit 4Kx2K signal for 8m via HDMI port, 35m via HDBT port
Audio source selectable via RS232 command
4 HDBaseT outputs, for easy extension to 70m at 1080p and 35m at 4Kx2K on a
single CAT5e/6 cable
Support PoC
LCD indicator shows real-time I/O connection status, switching status, HDCP
status, and output resolution.
Controllable via front panel, RS232, IR and TCP/IP
Support bi-directional IR& RS232 control
Built-in GUI for TCP/IP control
Powerful EDID management
Support off memory for reliable operation
Support firmware upgrade through Micro USB port
Easy installation with rack-mounting design

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1.3 Package List
1 x MTX44UH
2 x Mounting ears (6 x Screws)
1 x RS232 cable
1 x IR Receiver
4 x Plastic cushions (4 x Black Screws)
1 x IR remote
1 x Power Adapter (DC 24V 2.5A)
8 x Pluggable Terminal Blocks
1 x User manual
Notes: Confirm if the product and the accessories are all included, if not, please
contact with the dealers.
2. Product Appearance of the MTX44UH
2.1 Front Panel
No.
Name
Description
1
Firmware
Micro USB port for updating firmware
2
Power
Indicator
Illuminate red when power on.
3
IR
In-built IR sensor, receive IR signals sent from IR remote.
4
LCD Screen
Display real-time operation status.
5
INPUTS/
Menu
buttons
Normal mode: Back-lit buttons, ranging from "1" to "4".
Inquiry mode (buttons 1~4): Press “ENTER” for more than
3 seconds to enter this mode. Dial to select
different menus, to select different options.
6
OUTPUTS
buttons/
EDID
Manageme
nt buttons
Normal mode: Back-lit buttons, ranging from "1" to "4".
Output 1~2 support synchronous local HDMI output.
EDID Invoking mode: press and hold EDID button for 3
seconds or more to enter this mode, in this mode, button
1, 2 are used to switch to the previous/ next EDID data.
7
Function
ALL: Select all inputs/ outputs.
I

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buttons
EDID management button: Enable input port to manually
capture and learn the EDID data of output devices.
CLEAR: Withdraw an operation like switching output
channel, learning EDID data before it comes into effect.
Meanwhile, the matrix will return to the previous status.
ENTER: Confirm operation. Press and hold it for 3 seconds
to enter in Inquiry mode.
Notes: Pictures shown in this manual are for reference only, different model and
specifications are subject to real product.
2.2 Rear Panel
No.
Name
Description
①
IR ALL IN
Input port for IR control signal, connect with IR receiver, deliver
IR signal to all the HDBaseT ports to control the remote
devices.
②
HDMI
INPUTS
HDMI input ports, 4 in total, type A female HDMI connector,
connect with HDMI input source devices.
③
IR OUT
Connect with IR transmitter, to emit the IR signal sent from the
HDBaseT ports of the far-end Receiver. These IR OUT
sockets make up an IR matrix with the IR IN sockets on the
HDBaseT receivers, and all IR signals can be switched
synchronously with the AV signal, or separately switched.
④
OUTPUTS
a. IR IN: Connect with IR receiver, fixed IR input for the
output, cannot be switched separately. It makes up an IR
bi-directional transmission with the IR OUT on the
corresponding HDBaseT receiver.
RS232
IR EYE TCP/IP
DC 24V
RS232
IR EYE TCP/IP
HDMI INPUTS
IR OUT
1 2 34
1 2 3 4
OUTPUTS
HDMI
AUDIO
HDBaseT HDMI
234
L R
AUDIO
L R
AUDIO
L R
AUDIO
L R
Tx Rx Tx Rx Tx Rx
IR IN
1
IR IN IR IN IR IN
IR ALL IN
COAX
HDBaseT HDBaseT HDBaseT DC 24V
COAX COAX COAX Tx Rx
HDMI
AUDIO
HDBaseT L R
Tx Rx
IR IN
1
COAX
a b c
def

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b. COAX: HDMI de-embedded digital audio output.
c. RS232: Serial port to communicate with the RS232 port on
corresponding HDBaseT receiver. When controlled by
HDBaseT receiver, the communication protocol must be
the same with MTX44UH.
d. HDMI: HDMI output port, connect with HDMI displayers,
deliver same input signals with HDBaseT ports, split HDMI
output for local monitoring.
e. HDBaseT: Works with HDBaseT receivers, such as
TP513HDR. It can extend AV, IR and RS232 signal to 70m
distance. Meanwhile, it can provide power for the receivers
which support PoC.
f. AUDIO: HDMI de-embedded stereo audio output
⑤
IR EYE
Connect with extended IR receiver, use the IR remote to
control MTX44UH.
⑥
TCP/IP
TCP/IP port for unit control
⑦
RS232
Serial port for unit control, 9-pin female connector, connects
with control device such as a PC.
⑧
Power
Indicator
Illuminate red when powered on.
⑨
DC 24V
Connect with DC 24V power adaptor.
⑩
GROUND
Connect to grounding, make the unit ground well.
Note: Pictures shown in this manual are for reference only, different model and
specifications are subject to real product.
3. System Connection
3.1 System Applications
As its good performance in control and transmission, the MTX44UH can be widely used
in computer realm, monitoring, large screen displaying, conference system, television
education and bank securities institutions etc.
3.2 Usage Precautions
1) System should be installed in a clean environment and has a prop temperature and
humidity.
2) All of the power switches, plugs, sockets and power cords should be insulated and
safe.
3) All devices should be connected before power on.
3.3 Connection Diagram

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3.4 Connection Procedure
1) Connect HDMI sources (e.g. DVD) to HDMI inputs of the MTX44UH with HDMI
cables.
2) Connect auxiliary audio sources to the AUDIO IN ports with audio cables.
3) Connect HDBaseT receivers (e.g. TP513HDR) to the HDBaseT Output ports with
twisted pair.
4) Connect HDMI displays (e.g. HDTV) to HDMI outputs of the MTX44UH or the
receivers with HDMI cables
5) Connect speakers/earphones to AUDIO output ports
6) Connect the RS232 port of control device (e.g. a PC) to the RS232 port of either
MTX44UH or far-end receivers. RS232 signal can be transmitted bi-directionally
between MTX44UH and far-end receivers.
7) MTX44UH can collect IR signal sent by the included IR remote via its built-in IR
sensor or through external IR receiver connected to the IR IN/ IR EYE/ IR ALL IN
port. The IR signal can be transmitted bi-directionally between MTX44UH and far-
end receivers.
8) Connect a DC 24V power adapter and the MTX44UH.
Note: IR receivers connected to IR IN& IR ALL IN should be with carrier. If not, send
VCR
STB
DVD
TPHD402R
PC
IR Emitter
Speaker
Projector
Laptop
HDTV

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command %0900. or %0901.to activate native carrier mode or force carrier mode in the
IR matrix launched between MTX44UH and far-end receivers.
3.5 Connection with TP513HDR
MTX44UH boasts 4 HDBaseT output ports which support PoC solution. Connect the
HDBT output ports of MTX44UH to HDBaseT Receivers supporting PoC (like
TP513HDR) via twisted pair. Plug a power supply to the power port of MTX44UH, the
HDBaseT Receivers will be energized synchronously with PoC solution.
4. System Operations
4.1 Front Panel Button Control
MTX44UH provides with convenient front panel button control. Here we make a brief
introduction to the system operations.
4.1.1 Switching I/O connection
1) To convert one input to an output:
Operation: “input”+“output”+“ENTER”
Example: input 1 to output 2
Note: In default status, 4 IR OUT sockets correspond with 4 HDMI INPUTS. When you
convert an HDMI input to an output, the corresponding IR OUT will be switched
synchronously.
2) To convert an input to several outputs:
Operation: “input” + “output” + “output” +… + “ENTER”
Example: Switch input 2 to output 2, 4
PoC
DC 24V TPHD402PR(PoC)

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3) To convert an input to all outputs:
Operation: “input” + “ALL” + “ENTER”
Example: Convert input 1 to all outputs
Note: Indicators of the pressed buttons will blink green for three times if the conversion
is done, then it will be off. If the conversion failed, they will be off immediately.
4.1.2 EDID Management
MTX44UH features EDID management to maintain compatibility between all devices. It
can be controlled via EDID learning and EDID invoking.
EDID Learning (from output):
One input port learns the EDID data of one output port
Operation: Press “EDID”, “INPUTS”+“OUTPUTS”+“ENTER”.
Example: Input 2 learns EDID data from output 4
All input ports learn EDID data from one output port
Operation: Press “EDID”, “ALL”+“OUTPUTS”+“ENTER”
Example: All input ports learn EDID data from output 4
Note: Indicators of the pressed buttons will blink green for three times if the conversion
is done, then it will be off. If the conversion failed, they will be off immediately.
EDID invoking:
There are six types of embedded EDID data. The chart below illustrates the detailed
information of the embedded EDID data:

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Output Button
EDID Data
1
1080P 3D 2CH
2
1080P 3D Multichannel
3
1080P 2D 2CH
4
1080P 2D Multichannel
5
3840x2160 2D（30Hz）
6
4096x2160 2D（30Hz）
Press and hold “EDID” for 3 seconds to enter EDID invoking mode, in this mode, use
output buttons 1/2 to switch among the 5 embedded EDID data. Then press “ENTER”
to confirm invoking.
Format: Press and hold “EDID” for 3 seconds, “INPUTS”+“OUTPUTS 1/2”+“ENTER”.
Operations:
Invoke embedded EDID data for one input
Operation: Press “EDID” (hold for 3 seconds to enter in EDID setting status),
“INPUTS”+“OUTPUTS”+“ENTER”.
Example: Set the EDID data of INPUT 2 to the forth type of embedded EDID data:
Press (hold for 3 seconds) or to switch to
the 4th EDID data .
Invoke embedded EDID data for all inputs
Operation: Press “EDID” (hold for 3 seconds to enter in EDID setting status),
“ALL”+“OUTPUTS”+“ENTER”.
Example: Set the EDID data of all input ports to the second type of EDID data:
Press (hold for three seconds) or to switch to
the 2nd EDID data .
Note: If the conversion is successful, indicators of the pressed buttons will blink green

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for three times at normal speed; if the conversion failed, they will blink for three times
quickly.
4.1.3 Inquiry
Check status
Press and hold the button “ENTER” for 3 seconds, it will enter into system inquiry
menu. Use Left and Right direction button to navigate checking the previous/next items.
Function Items
Example
Description
Check the
connection status of
inputs
Y means the corresponding
port is connected with input
device, N means not.
Check the
connection status of
outputs
Y means the corresponding
port is connected with
output device, N means not.
Correspondence
between inputs and
outputs
Shows the correspondence
between the 4 inputs and 4
outputs.
Check if the input is
with HDCP
Y means the input signal is
with HDCP, N means not.
Check if the output
is with HDCP
Y means the output signal is
with HDCP, N means not.
Check the output
resolution
Use the UP and DOWN
direction button to check all
the 4 output resolutions.
Output check
Press any output button to check its corresponding input.
Example: Check which one is the corresponding input for output 2. (Presume Output 2
corresponds to Input 1.)
Operation: Press Output 2 button, LCD screen display “AV: 1->2 IR: 1->2”, and
indicators of input 1 and output 2 turn on and last for 3 seconds. Then output 2
corresponds to input 1.

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4.1.4 Clear operation
When you switch output channel, learn EDID data, or set EDID data, press Clear
button to withdraw the operation before you press “ENTER” to carry it on. When you
press it, the matrix will return to the previous status.
4.2 IR Control
By using IR & HDBaseT transmission technology, the MTX44UH has some functions as
follows:
1) Control far-end output device from local.
2) Control local input/output device remotely.
3) Control the MTX44UH locally/remotely.
4.2.1 Usage of IR Remote
①Standby button, press it to enter/ exit standby
mode
②Input channels, range from 1~4 (buttons 5~8
are not available), corresponding IR signal
switched synchronously when switching input
channels.
③Menu buttons, ALL, EDID and CLEAR, same
with the corresponding front panel buttons.
Please refer to 4.1 Front Panel Button
Control for details.
④: Navigation buttons.
ENTER: Confirm button.
⑤OUTPUTS (buttons 5~8 are not available)
In normal mode: output channel selection
buttons, each channel has 1 IR IN, 1
HDBaseT, 1 RS232, and 1 AUDIO outputs,
and channel 1~4 have HDMI outputs.
In EDID invoking mode: press button 1/2 to
switch among the 5 embedded EDID data

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Note: With this IR remote, MTX44UH can be controlled by the built-in IR, the extended
IR receiver connected to the “IR EYE”/”IR ALL IN” and the IR receiver on the far-end
receiver.
4.2.2 IR Operations
1) IR Matrix Switching
The 4 “IR OUT” ports and the 4 “IR IN” ports on the far-end receivers make up an 4x4
IR matrix. See as below:
IR Matrix
The IR signal is sent by corresponding IR remote, then it is transferred to HDBaseT
receiver, then to corresponding zone of the matrix through the twisted pair, finally it is
transferred to IR OUT port and received by controlled device.
Switching Operation: (4 IR IN ports correspond with 4 HDMI input ports separately in
default mode.)
a) Sending command (reference to 4.3 RS232 Control): [x1]R[x2].
x1: Corresponding to the 4 IR OUT ports of the matrix, the IR transmitter connected
to this port can be placed at IR receiving area of output device or MTX44UH
itself.
x2: Corresponding to the zone (receive IR signal from HDBaseT receiver with IR IN
port connects with IR receiver) number of MTX44UH.
Example: Send command “3R2.” to transfer IR signal received from zone 2 to IR
OUT port 3.
Note: When switching all the 4 IR input signal channels to the same IR out channel,
it is not able to control the 4 far-end IR receivers at the same time.
1 32 4
IR Emitter
PoC TPHD402PR 1
HDTV
HDTV TPHD402PR 2
HDTV
HDTV TPHD402PR 3
HDTV
TPHD402PR 4
HDTV
PoC PoC PoC

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2) Force Carrier
a) Only if the IR receiver connected to HDBaseT receiver is with IR carrier, can the
received IR signal be transferred to IR OUT port of the matrix.
b) Only if the IR receiver connected to IR ALL IN port of the matrix is with IR carrier,
can the received IR signal be transferred to IR OUT port of the matrix.
If the IR receiver connected with HDBaseT receiver or IR ALL IN port of the matrix
is not with IR carrier, send the command “%0901.” to enter infrared carrier enforcing
mode, and then IR signal can be transferred to IR OUT port.
3) IR control setting
Control far-end output device from local
Connect an IR receiver with IR carrier to the IR IN port of MTX44UH, users can control
far-end output displayer via its IR remote from local.
In that case, the IR signal is transferred via twisted pair. Only the corresponding IR
OUT port can emit control signals to the remote display.
See the figure below:
Control far-end device from Local
Note: The IR receiver connected to IR IN must be with IR carrier
The IR signal received from IR ALL IN port will be transmitted to all the 4 far-end
HDBaseT receivers connected to HDBaseT ports of the MTX44UH. See as below:
PoC TPHD402PR
DVD
HDTV
IR Remote
HDTV
IR Emitter

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Control far-end device through IR ALL IN port
Control local device from remote
User can control local source devices with their IR remote from remote too. When
using, the IR signal received by the HDBaseT receiver will be transmitted to the
corresponding IR OUT port of the MTX44UH. See below:
Control local device from remote
PoC TPHD402PR 1
HDTV
HDTV TPHD402PR 2
HDTV
HDTV TPHD402PR 3
HDTV
TPHD402PR 4
HDTV
PoC PoC PoC
IR Emitter
IR Remote
IR Emitter IR Emitter IR Emitter
PoC
TPHD402PR
DVD
HDTV
IR Remote
IR Emitter

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4.3 RS232 Control
4.3.1 Connection with RS232 Communication Port
Except the front control panel, the MTX44UH can be controlled by far-end control
system through the RS232 communication port. This RS232 communication port is a
female 9-pin D connector. The definition of its pins is listed in the table below.
No. Pin Function
1 N/u Unused
2 Tx Transmit
3 Rx Receive
4 N/u Unused
5 Gnd Ground
6 N/u Unused
7 N/u Unused
8 N/u Unused
9 N/u Unused
4.3.2 Installation/uninstallation of RS232 Control Software
Installation Copy the control software file to the computer connected with SUH4T.
Uninstallation Delete all the control software files in corresponding file path.
4.3.3 Basic Settings
Firstly, connect SUH4T with an input device and an output device. Then, connect it with
a computer which is installed with RS232 control software. Double-click the software
icon to run this software.
Here we take the software CommWatch.exe as example. The icon is showed as
below:
The interface of the control software is showed as below:

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Please set the parameters of COM number, bound rate, data bit, stop bit and the parity
bit correctly, only then will you be able to send command in Command Sending Area.
4.3.4 RS232 Communication Commands
Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none
Command
Function
Feedback Example
System Commands
/*Type;
Inquire the models information.
MHD44TP-N
/%Lock;
Lock the front panel buttons on the Matrix.
System Locked!
/%Unlock;
Unlock the front panel buttons on the
Matrix.
System Unlock!
/^Version;
Inquire the version of firmware
VX.X.X
/:MessageOff;
Turn off the feedback command from the
com port. It will only show simple words
like “SWITCH OK!”.
/:MessageOff;
Parameter Configuration area
Monitoring area, indicates
whether the command
sent works.
Command Sending area
Parameter Configuration area
Monitoring area, indicates
whether the command
sent works.
Command Sending area