LINK-MI LM-SP420 User manual

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4K Splitter with Switch
LM-SP420
User Manual
For the safety of you and equipment, please read the safety
instructions carefully before using this equipment. If you have any
queries in use, please read the instructions first. A detailed
description of device operation is provided in the main body. If
there is still doubt, please contact us. W e w il l gi v e yo u a
satisfactory reply as soon as possible.
If there is any change in the instruction manual, without prior
notice, please understand.

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Catalog
1、Installation instructions ………………………………………… 2
2、Product overview …………………………………………………… 4
3、Panel operation introduction ……………………………………… 6
4、Introduction of remote control operation ………………………… 7

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Chapter 1. Installation instructions
1
Power adapter
This equipment supports 100-240V AC input. In order to make the
equipment work properly, please do not replace our standard power
adapter easily.
2
Power
off
Turn off all the power supply, unplug the power plug, etc. to ensure
the safety of you and the equipment.
3
Cables
It is not possible to place objects on power lines, signal lines,
communication lines and other cables. Cables should be avoided from
being trampled or squeezed to prevent leakage or short circuit.
4
Signal cables
When the signal line is inserted or pulled from the equipment, the
equipment needs to be cut off so as not to damage the equipment. If
not,The damage is not in warranty
5
Heat dissipating
hole
There may be openings on the outside surface of the equipment for
heat dissipation. Do not block these openings to avoid heat
accumulation, damage to the equipment or cause fire hazards.
6
Equipment
placement
Equipment should be reasonably placed, such as standard rack, chassis,
cabinet, or placed on a stable and flat work table to prevent
equipment from falling.
7
Environment
The environment of equipment should pay attention to dust proof and
moisture proof, especially prevent liquid from soaking and splashing
into the equipment.
8
Repair
All maintenance work should be done by professional maintenance
personnel. Do not attempt to repair equipment without training. To
avoid the danger of electric shock, do not unlock the case.
9
Safety
precautions
1, there is electricity inside the equipment, non professional
maintenance personnel shall not open the chassis, in order to avoid
any danger.
2, strictly prohibit water droplet or water splashing, strictly
prohibit putting any liquid container container on the equipment.
3, in order to prevent fire, the equipment should not be near the
fire source.
4, in order to fully ventilate, the front and back panels of the
equipment should maintain at least 20CM gap.
5, If the equipment makes strange noise, smoke or odor, the power
plug should be unplugged immediately and handled by professional
maintenance personnel.
6, in case of thunder or long absence, please unplug the power supply.

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Chapter 2. Product overview
This equipment is a multi-functional UHD video processor, a
single device can complete multi-signal switching, signal
distribution, signal amplification and so on. The product supports 4
channels of HDMI signal input, N channels of HDMI signal output,
input and output signals up to 3840*2160@30Hz UHD. At the same time,
all input signals of the product can support synchronous switching
between video and audio.
7, do not plug any object from the ventilation hole of the equipment,
so as to avoid damage to the equipment or electric shock.
8, it is not suitable to place this equipment in near water or other
damp places.
9, it is not suitable to place this equipment near heat sink or other
high temperature places.
10, please properly arrange the power cord to prevent breakage.
11, under the following circumstances, the power plug of this
equipment should be removed and handled by professional maintenance
personnel.
1) when the plug power cord is damaged or worn;
2) when liquid splashes into the equipment.
3) when the equipment falls or the chassis is damaged.
4) when the equipment has obvious functional abnormalities or
performance changes;
5) Regularly check whether the fan is working properly, if the fan is
not working, it should be immediately unplugged and switched off the
power supply of the equipment, handled by professionals.
This equipment is not suitable for non professionals to operate and debug. Users
must receive professional training and guidance.

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Features
1, support 4 channel HDMI1.4 input, the maximum resolution can reach
3840*2160@30Hz or 4096*2160@24Hz;
2, support HDCP1.4 to solve blue DVD signal.
3, any HDMI signal can be selected to output to multiple screens.
4. Modular designed. The output can be customized according to the
actual situation of customers. The single machine supports 4-20
channels of customized output.
5, output resolution is input resolution, up to 3840*2160@30Hz or
4096*2160@24Hz;
6, the maximum output distance can reach more than 20 meters.
7, the adoption of the standard 19 inch 1U chassis, 100-240V AC input,
universal national.
2.1 Technical parameter
Name
Specifications
Input signal
HDMI signal
HDMI1.4(HDCP1.4)
Output signal
HDMI output
4-20 channel HDMI output
Other
Control
Key panel,Remote control, RS-232 serial port
Power supply
AC100-240V
Power waste
60W Max.
Size
Dimension
440mm(L)x240mm(D)x44mm（H）
Weight
3.5Kg

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HDMI Cables
2.2、Control protocol
Baud rate：9600 Data bit：8 Check bit：None Stop bit：1
HDMI1: 1SO HDMI2: 2SO
HDMI3: 3SO HDMI4: 4SO
2.3、 Product topological graph
Display 1
Display 2
Display 3
Display 4
Display 5
Display 6
Display 7
Display 8
Display 9
Display 10
Display 11
Display 12
Display 13
Display 14
Display 15
Display 16
Display 17
Display 18
Display 19
Display 20

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③ ④ ⑤ ⑥
⑦
①②
Chapter 3. Panel operation introduction
①
LED light（Current
channel have signal，the
light is on,if not,is off）
②
Remote control receiver
③
HDMI1 input signal
④
HDMI2 input signal
⑤
HDMI3 input signal
⑥
HDMI4 input signal
⑦
Power on/off

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Chapter 4. Introduction of remote control operation
HDMI1
HDMI2
HDMI3
HDMI4
HDMI2
HDMI13
HDMI4
HDMI1