LINK-MI LM-MX44U User manual

Professional Matrix
4x4 Switching System
LM-MX44U
Instruction Manual
Before using this product, please read the instructions
first and keep it properly

Contents
Contents
Chapter 1. Preface...............................................................2
Chapter 2. Notices...............................................................3
Chapter 3. Product Introduction....................................................4
Chapter 4. System Parameters ....................................................5
Chapter 5. Packaging and panel and keys.............................................6
5.1. Matrix packing list................................................6
5.2. Structural representation.........................................6
5.3. Panel description..................................................7
5.4. Remote control button.............................................8
Chapter6. Installation Instruction ..................................................9
6.1. Signal connection..................................................9
6.2. RS232 communication interface connection...........................9
6.3. RJ45 for TCP/IP control ...........................................9
6.4. RJ45 for RS232 control ...........................................10
6.5. Power connection..................................................10
Chapter7. Communication Control Protocol.......................................11
7.1. TCP/IP control....................................................11
7.2. RS232 control.....................................................11
7.3. Communication control protocol....................................11
Chapter8. Operating Instructions................................................13
Chapter9. Control Software ....................................................14
Chapter10. Common Faults And Maintenance......................................15
Chapter11. Warranty Description................................................16

Preface
Chapter1. Preface
• Welcome to choose our products, thank you for the support
of our products ! For the safety both of yourself and the
equipment , please read the instruction manual carefully
before using this equipment.
• Products are covered with a fragile label, please
preserve it carefully which will serve as the warranty
certificate.
• Please read this guide first when you have any
problems;The text has a detailed description of the device
operation.If you still have questions, please contact us
and we will give you a satisfactory answer as soon as
possible.
• If this manual has a version changes, we will not inform
you specially, thank you for your understanding and
cooperation!

Notices
Chapter2. Notices
In order to ensure the reliable use of the equipment and personnel safety,
please observe the following items when installing, using and maintaining:
2.1 • Do not use this product in the following places: dust, fumes, conductive
dust,corrosive gas and combustible gas places; exposure to high temperature,
dew,rain occasion; vibration or shock situation; electric shock, fire and
misoperation will result in product damage and deterioration；
2.2 • In the end of the installation work, the need to ensure that there is no
foreign body on the ventilation surface, including dust and other packaging
items,otherwise it may result in poor heat dissipation during operation,
causing fire and error；
2.3 • To avoid of wiring and plug a electric cable plug, which would easily
lead to electric shock or cause damage to the circuit；
2.4 • Installation and wiring must be solid and reliable, poor contact may lead
to misoperation；
2.5 • For applications in interference is serious, input or output high
frequency signal cable should be shielded cable, in order to improve the
anti-jamming performance of the system; the external power supply must be
completely cut off, to carry out the installation and wiring operation,
otherwise it may cause electric shock or damage to equipment；
2.6 • This product is grounded through the grounding wire of the power supply
line. In order to avoid the electric shock, the grounding wire must be
connected with the earth；
2.7 • Please do not touch the terminal when the power is on,which may cause
electric shock and misoperation；
2.8 • Please tighten and cleaning the terminals when the power is off,These
operations may cause an electric shock when energized;
2.9 • After the power supply is closed, the connection or removal of the
communication signal cable, the cable connection of the expansion module or the
control unit, or the removal of the device can result in equipment damage and
misoperation；
2.10 • Do not disassemble the equipment to avoid damage to the internal
electrical components；
2.11 • Be sure to read this manual to fully confirm the safety, then the
program change, commissioning, start and stop operation. If you can not solve
the problem, please contact us.

Product Introduction
Chapter3. Product Introduction
3.1 • Matrix switcher is a professional switching device embedded
intelligent control of a high performance, for the audio and video
input signal synchronous switch to any output channels of audio and
video;
3.2 • The unique processing method is adopted, which greatly improves
the switching speed of the device. Support a variety of control
methods,flexible operation switch, is widely used in radio and
television engineering, multimedia conference hall, large screen
display works,TV teaching, command and control center;
3.3 • Interface bandwidth 3.4Gbps (total bandwidth 10.2Gbps),support
the highest resolution3840*2160@30Hz;
3.4 • Support HDCP1.4revision, provides outstanding security and
digital content protection capabilities;
3.5 • Support fast switching operation; support infrared remote
control;
•The input and output board support card function, can be hot
swappable;
3.6 • Supports basic matrix control instructions and basic matrix
functions；
•With power down memory function, with power off site protection
function;
3.7 • Flexible control mode, with the crystal button panel operation,
but also provides 2 standard RS-232 communication interface and RJ45
port,compatible with a variety of environments, user-friendly and a
variety of remote control equipment with the use of;
One RJ45 interface use RS232,It is a serial port;
One RJ45 interface use TCP/IP,it is LAN port;
3.8 • Built in International standard power;
3.9 • Full metal chassis compatible with standard 19 inch cabinet;
3.10 • Support user defined control software LOGO;
3.11 • Support HDCP can decode Blue ray DVD and so on the
corresponding equipment.

System Parameters
Chapter4.System Parameters
Matrix Specification
Input numbers
4
Output numbers
4
Signal interface
HDMI
HDMI protocol
Support HDCP1.4 and HDMI1.4,compatible with the
DVI1.0
Bandwidth
3.4Gbps（total 10.2Gbps，each color 3.4Gbps）
Resolution Max.
3840x2160@30Hz
Clock jitter
<0.15Tbit
Bit rise time
<0.3Tbit（20% - 80%）
Bit drop time
<0.3Tbit（20% - 80%）
Maximum transmission delay
5ns（±1ns）
Switching speed
200ns（Max.）
Signal intensity
T.M.D.S +/-0.4Vpp
Impedance
50Ω
Input EDID
EDID can read and write
The maximum input distance
1920x1080@60hz@less then 30 meters(good cable)
The maximum output
distance
1920x1080@60hz@less then 20 meters(good cable)
Serial port version
RS232、Panel key、Remote
LAN port version
TCP/IP、RS232、Panel key、Remote
Baudrate and protocol
Baudrate：9600,data bits：8bits,stop：1,no parity
RJ45 serial port
1 = TX,2 = RX,5 = GND
Power input
AC100 - 240V，50/60hz
Temperature
Storage and use temperature: -20° ~ +70° C
humidity
Storage and use humidity:10% ~ 90%
Size
1Uwith standard 19 inch box
Mean time between failures
30000hours

Packaging and panel and keys
Chapter5. Packaging an panel and keys
5.1. Matrix packing list
Name
Unit
Numbers
Matrix switcher
pcs
1
AC power cable cord
pcs
1
RS232 Serial communication cable
pcs
1
User manual
pcs
1
Data CD
pcs
1
5.2. Structural representation
Size：
Model
Length
A（mm）
B（mm）
C（mm）
D（mm）
LM-MX44U
480
44
240
440
A
B
C
D

Packaging and panel and keys
5.3. Panel description
•Front Panel
•Back Panel
① Operation light
② power light
③ IR
④ Front panel buttons
⑤ Power switch
⑥ AC100-220V Input
⑦ Signal input
⑧ Signal input
⑨ RJ45 as serial TCP/IP port
⑩ RS-232 output
⑾ RS-232 input
①
②
③
⑤
④
⑧
⑥
⑨
⑦
⑩
⑾

Packaging and panel and keys
5.4. Remote control button
Name
Function
SWITCH
AV switch
MENU
System menu
SOURCE
System setting
Exit
OK
ok
‖>
All channel
0
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9

Installation Instructions
Chapter6. Installation instructions
6.1. Signal connection
The matrix interface is divided into signal input and output
interface,please use the corresponding cable to connect the input and
output devices, the signal source (such as DVD, computer etc.) output
terminal matrix input device (INPUT), the matrix output (OUTPUT)
connected to the Input interface of signal equipment (such as
projector, TV etc).
6.2. RS232 Communication interface connection
Matrix switch provides a standard RS-232 serial communication
port and RJ45 communication port, users can use a variety of remote
control equipment remote control. The RS-232 port of the matrix is a
D shaped 9 pin male connector (the same as the serial port of the
computer)Pin descriptions are as follows:
Serial
number
Pin
illustration
1
NC
None
2
RXD
Transmit Exchange Data（RXD）
3
TXD
Receive Exchange Data（TXD））
4
NC
None
5
GND
Ground
6
NC
None
7
NC
None
8
NC
None
9
NC
None
Attention: matrix RS-232 port and the computer or the central control,
should pay attention to the TXD and RXD line sequence,specifically to
consider the other device pin definition.
6.3. RJ45 for TCP/IP control
The network matrix is supported by the TCP/IP protocol. When the
matrix is connected to a switch or router or PC directly, the matrix
can communicate. The premise is to keep the IP address of the matrix
and the LAN to be the same segment, otherwise the IP address of the
set matrix should be entered first.

Installation Instructions
6.4. RJ45 for RS232 control
RJ45 to RS232
The diagram below is a schematic diagram of the connection with
the computer：
6.5. Power connection
Please connect one end of the power cord to the back of the
matrix with a power supply interface of AC100-240V 50/60HZ, which
connects to the 100-240V 50/60HZ AC power supply. Note that in
order to ensure the safety and normal operation of the equipment,
a single-phase three wire AC power supply.
PC
MATRIX

Communication control protocol
Chapter7. Communication protocol
7.1. TCP/IP LAN control parameter
1.1.Query IP instruction :HWC
HNW192.168.1.172,6800,255.255.255.0,192.168.1.1,54.82.52.115.119.23
1.2.Reset operation instruction: HWR
1.3.Setting up the IP instruction: HWS
For example: HWS192.168.1.172.255.255.255.0.192.168.1.1
After IP is set up, the communication of the host computer needs to be reconfigured and
reconnected to normal communication control.
1.4: Port number support: Four 6800 / 6900 / 7000 / 7100
7.2. RS232 serial control parameter
The baud rate is set to 9600, 8 bit data bits, 1 bit stop bits, no parity bits, and communication
mode: asynchronous half duplex serial communication.
7.3. Communication control protocol
The following protocols support all types of matrices, including VGA series, DVI series and HDMI
series Matrix:
Remarks：LM-MX44U matrix ID is 0,all protocols need add 0D.
For example:
1D1V1,2,3.
When ID is 0, you can use all the matrix. ID value 0~99.The matrix ID is 1 and the input channel 1
is switched to the output 1,2,3 channel sequentially.
16X16 matrix. 2D12V12,2,14,1.
The matrix ID is 12, and the input channel 12 is switched to the 12,2,15,1 channel of the output
channel once.
Matrix ID
ID
Identification
Input ID
switch
Output ID1
Delimiter
Output
ID2
End
character
ID
D
IN
V
OUT1
,
OUT2
.

Communication control protocol
Switch an input channel to all output channels
12D01TOALL The matrix ID is 12, switching input channel 1 to all output channels.
12D12TOALL The matrix ID is 12, switching input channel 12 to all output channels.
Switchone to one
MatrixID
T
O
O
N
E
ID
Protocol identification
12TOONE Switch the matrix ID is 12 signal input X to output X
Recall the mode
Matrix ID
CALL
ID
ID
Protocolidentification
MODEID
For example: 12CALL2 Recall the mode 2 of Matrix ID 12
Save the mode
Matrix
ID
S
A
V
E
ID
ID
Protocolidentification
ModeID
For example: 12SAVE2 Save the mode 2 of Matrix ID 12
12BUZON Matrix ID 12 ,Buzzer on
12BUZOFF Matrix ID 12 ,Buzzer off
MatrixID
ID
Identification
IDH
IDL
T
O
A
L
L
ID
D
Input ID
Protocol identification

Operating Instructions
Chapter8. Operating instructions
◆ "AV button" audio and video switch Press the AV button to enter the audio and
video synchronization switch system, in this state, with the number keys to
select the input channel number and output channel number, and then press the OK
key to switch. Select the "ALL" key instead of all output channels. For example, to
switch the input 1 channel to output 3 channels, press "AV" - "input 1" - "output
3" -"OK" , to switch the input 1 channel to all output channels, press "AV" -
"input 1" - "ALL" -"OK".
◆ "EDID" function key In standby mode: Connect the EDID display screen or device
to the output 1 channel, power the matrix machine and display screen, press the
EDID key, press the input port number to be written to EDID information, press OK,
and then see the P light flashing for about 3 seconds, EDID information is written,
and then the input device and matrix are restarted OK For example, we need to
change the EDID information of the third input channel: "EDID" - "input 3" - "OK".

Control Software
Chapter9. Control software
• In the CD-ROM attached to the packing box, the control software
and the documentation of the product are stored; the user can read
the file only by placing the disc in the DVD drive.
• Copy the files in the CD to the PC computer of the windows system
and double-click lmmatrixcontroller.exe to enter the matrix
control software.
1. Confirm the serial port or network connection to the matrix,
select the serial port number of the serial port selection at the
serial port selection, click the connection, can connect successfully,
can start the communication; the network version chooses the
corresponding IP address to click the connection, the network version
setting refer to the IP address of the computer.
2. Select the input channel number and output channel number, click
switch to complete the matrix quickly.Switch control. Switching to
all input channels can be switched to all output channels.
3. In addition, you can save the current scene, choose the scene
number saved next time, click The call can be immediately restored to
the last saved scenario.
4. You can also rename the input and output channels and save the
invocation mode.

Common faults and maintenance
Chapter10. Common faults and maintenance
◆ When the matrix peripheral image display device has ghosting, such as ghosting
when the projector is not the main problem, in general, may be adjusted without the
right projector or wire quality standards, with the corresponding projector button
to adjust or replace the wire.
◆ When the color loss or no video signal output, audio and video interface may
be bad contact.
◆ When the remote control can not control the matrix:
1.may be the battery is dead, please replace the battery.
2.may be the remote control is broken, please repair.
◆ When the serial port can not control the matrix, check whether the communication
port of the control software is corresponding to the serial port of the connected
device.
◆ There is no corresponding image output when the matrix is switched:
1.check whether the corresponding input signal. (can be used oscilloscope or
multimeter for testing) if there is no signal input, it is possible that the input
line broken or loose joints, try to replace the wire.
2.check the corresponding output signal. (can be used oscilloscope or multimeter
for testing) if there is no signal output, it is possible that the output line is
broken or loose joints, try to replace the wire.
3.check whether the output port number is consistent with the controlled port
number.
4.does not belong to the above three kinds of situations, may host internal fault,
please send professional maintenance.
◆ If the POWER lamp does not light, and the LED is not light, the operation is not
responding, please check whether the power input is good.
◆ The output image is disturbed, it is possible that the input and output devices
do not have good grounding.
◆ When pulling, inserting audio video interface, if you feel there is a clear
static,it is possible that the equipment power supply ground wire is not a good
grounding, according to the correct method of grounding, otherwise easy to damage
the host, shorten the life of the mainframe.
◆ LED light normal, the communication port has a return code, but no image output
or no audio output
1.audio and video interface may be loose, can be replaced.
2.short circuit may be connected, try to replace the wire.
3.possible wiring break, try to replace the wire.
◆ When buttons, communications, remote control can not be controlled, the host may
have been damaged inside, please send for professional maintenance.