LINK-MI LM-MX88B User manual

8x8 HDMI Matrix
LM-MX88
Operation Manual
V1.1

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1. Introduction
The 8x8 HDMI Matrix with EDID control connects eight HDMI sources
to eight displays. This matrix provide eight HDMI outputs and each
HDMI output is supporting 1080p Full HD up to 4K plus all 3D formats
and supporting independent EDID control. It works with Blu-Ray
players, Set-Top boxes, Home Theater PCs, and game consoles that
connect to an HDMI display. Any source is accessible at all times by
any display by selecting it via the supplied IR Remote Control, RS-232,
TCP/IP or by using the selection buttons on the front panel.
2. Features
Supports HDCP2.2 input.
HDMI V1.4 supports: 4K x 2K@30Hz,1080P@120Hz,and 1080P
3D@60Hz
Deep Color support 48/36/30/24-bit
Supports LPCM 7.1CH, Dolby True HD, Dolby Digital Plus and DTS-
HD Master Audio transmission
Allows any HDMI display to view any HDMI source at any time
8-input ports support independent EDID
Supports RS-232, remote control, on-panel control and TCP/IP
Control
Front-panel LCD display for status feedback
3. Package Contents
8x8 HDMI Matrix---------------------------------------------------------- 1pcs
12V/2.5A DC power adapter------------------------------------------- 1pcs
Operation Manual-------------------------------------------------------- 1pcs
HDMI Matrix IR Remote------------------------------------------------ 1pcs
Mounting ears------------------------------------------------------------- 2pcs
RS232 cable---------------------------------------------------------------- 1pcs

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4. Specifications
Video Bandwidth 297 MHz
Support Video Resolution 480i,576i,480p,576p,720p,1080i,1080p
@24/30/50/60Hz, 4K@30Hz, 1080P3D@60Hz
Input Ports 8×HDMI, 1×RS-232, 1xRJ-45(Control)
Output Ports 8×HDMI
ESD Protection Human-body Model:
± 8kV (Air-gap discharge)
± 4kV (Contact discharge)
Power Supply 12 V/2.5 A DC (US/EU standards,
CE/FCC/UL certified)
Dimensions 440 mm (W)×200 mm (D)×45 mm (H)
Weight 2310 g
Chassis Material Metal
Silkscreen Color Black
Operating Temperature 0 ºC~40 ºC/32 ºF~104 ºF
Storage Temperature −20 ºC~60 ºC/−4 ºF~140 ºF
Relative Humidity 20~90 % RH (non-condensing)
Power Consumption 23 W(max)/0.5w(Standby)
5. PANEL FUNCTIONS
5.1 Front Panel

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1. LCD display ：Show the status of input-output selection, EDID info
and so on.
2. IR receiver window ：Receive the IR from the remote control of
8x8.
3. POWER：Press this button to power the device on/off. The LED will
illuminate
green when the power is on, red when it is in 'Standby' mode.
4. LOCK：Press this button to lock all the buttons on the panel, press
again to unlock. The red LED will illuminate when the button is locked,
on the contrary, turn dark when unlock.
5. HDMI output selection button area：
HDMI output selection button 1 to 8：Press to select the output from 1
to 8.
All button for HDMI outputs：Press to select all of the outputs from 1
to 8.
6. HDMI input selection button area：
HDMI input selection button 1 to 8：Press to select the input from 1
to 8.
7. PTP button：Press to mirror all inputs and outputs (e.g. output 1 to
input1, output 2 to input2 and so on).
8. EDID control area：
Menu button：Press to enter EDID set mode.
Enter button：Press to confirm and save the setting.
UP button：Press to change segment's value.
Down button：Press to change segment's value.

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※Note: The EDID mode table
1. #1 submenu：EDID mode table
Number
EDID Description
1
1080p, 2CH AUDIO
2
1080p, DOLBY/DTS 5.1
3
1080p, HD AUDIO
4
1080i, 2CH AUDIO
5
1080i, DOLBY/DTS 5.1
6
1080i, HD AUDIO
7
3D,1080p, 2CH AUDIO
8
3D, 1080p,DOLBY/DTS 5.1
9
3D,1080p, HD AUDIO
10
4k*2k@30Hz, 2CH AUDIO
11
4k*2k@30Hz, DOLBY/DTS 5.1
12
4k*2k@30Hz, HD AUDIO
13
4k*2k@60Hz, 2CH AUDIO
14
4k*2k@60Hz, DOLBY/DTS 5.1
15
4k*2k@60Hz, HD AUDIO
16
Copy from HDMI OUTPUT A
17
Copy from HDMI OUTPUT B
18
Copy from HDMI OUTPUT C
19
Copy from HDMI OUTPUT D
20
Copy from HDMI OUTPUT E
21
Copy from HDMI OUTPUT F
22
Copy from HDMI OUTPUT G
23
Copy from HDMI OUTPUT H
2. #2 submenu：Input ports selection
Number
Input port Description
1
Input 1
2
Input 2
3
Input 3
4
Input 4
5
Input 5

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6
Input 6
7
Input 7
8
Input 8
9
Input ALL
EDID. What is it and what is it used for?
Under normal circumstances, a source device (digital and analog) will
require information about a connected device/display to assess what
resolutions and features are available. The source can then cater its
output to send only resolutions and features that are compatible with
the attached device/display. This information is called EDID (Extended
Display Information Data)
And a source device can only accept and read one EDID from a
connected device/display. Likewise, the source can only output one
resolution for use by a connected device/display.
Why is EDID so important with the HDMI Matrix ?
The Matrix is complex piece of technology that replicates and switches
between multiple inputs and outputs. Each connected source device
will require one EDID to read. EDID management is carefully handled
by HDMI Matrix to provide a single EDID for each source to read.
What options do I have to manage the EDID in the HDMI Matrix ?
First, it is important to note that each source device can only output
one video/audio signal type. This includes resolutions and timings.
When multiple devices/displays are used, such as with the HDMI
Matrix, it is important to use devices/displays that have similar or
compatible resolutions/features. This will ensure that the single
video/audio signal produced by the source device is accepted by all of
the connected output devices/displays. The user has the option,
through the EDID management window, to choose how the unit will
manage the EDID from multiple HDMI devices/displays. Therefore the
user has some control over the resolutions/features that the source
devices will output. The HDMI Matr ix for has a multiple EDID
management modes that will control how the EDID information from
multiple devices/displays are combined, ignored, and routed.

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How to operate the HDMI Matrix?
1. How to select Output and Input Port?
Q. OUTPUT-X select INPUT-Y:
A. Press OUTPUT-X (X means 1 to 8 of outputs, including ALL)
Press INPUT-Y (Y means 1 to 8 of inputs)
2. How to change INPUT-Y EDID
Q. Fixed EDID to INPUT-Y/ALL:
A. Press MENU button to enter EDID set mode.
Press UP/DOWN button to select the EDID you want.
Press ENTER button ensure and enter Input port submenu.
Press UP/DOWN button to select Input port you want.
Press ENTER button ensure and save the setting.
5.2 Rear Panel
1. PC CONTROL：Show the status of input-output selection, EDID info
and so on.
TCP/IP: This port is the link for TCP/IP control s, connect to an active
Ethernet link with an RJ45 terminated cable.
RS232: Connect to a PC or control system with D-Sub 9-pin cable for
the transmission of RS-232 commands.
2. HDMI INPUT Area ：Connect HDMI sources. LED 1-8 illuminate
when the HDMI signal plug in corresponding input port with HDMI
cable.

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3. HD MI OUTPUT Area ：Output for displays, AVR etc . LED A-H
illuminate when the displays plug in corresponding output port with
HDMI cable.
4. Power port：Use included DC adaptor to power the matrix
switcher.
.
6. Remote Control
Po wer o n /St an d b y：Pr e s s t hi s
button for power on the matrix or set
it to standby mode.
1. Input port selection area ：Press
these buttons to select input 1-8.
Press forward /backward button will
cycle from input 1-8.
2.Output port selection area ：Press
these buttons to select output A-H,
including ALL.
How to operate the Matrix Remote?
1. Power on and standby
Q. How to power on and standby?
A. Press Power on /Standby button
and wait a while.
2. How to select Output and Input
Port?
Q. OUTPUT-X select INPUT-Y:
A. Press OUTPUT-X (X means 1 to 8
of outputs, including ALL)
Press INPUT-Y (Y means 1 to 8 of inputs)

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7. Operate and Connect
1. Connect up to 8 sources such as a Blu-Ray Player, game console,
A/V Receiver, Cable or Satellite Receiver, etc. to the HDMI inputs on
the unit. Do not hot plug! Insert and extract cables carefully with the
power SWITCHED OFF. Connecting and disconnecting while the unit is
powered can result in damage to circuitry.
2. Connect the HDMI output ports to high-definition displays such as
an HDTV or HD projector that use HDMI inputs. Note that high-speed
HDMI cables are recommended for the distances that are required for
each connection.
3. For power, plug in the source first, followed by the Matrix Selector
Switcher (power supply included), followed by each output connected.
4. Power on each device in the same sequence.
At this point each display connected should display the assigned
source (input 1 at default when powered on initially), scroll through
each of the sources on each display to ensure everything is in working
order. Use included IR remote to test switching function. If a display is

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having difficulty receiving signal, access the display’s menu and adjust
the resolution (lowest to highest until signal is displayed). A 24 Hz
vertical refresh rate may work better than 60 Hz or higher.