Lenkeng LKV104WV User manual

材质:157g铜版纸
尺寸：100x138mm
装订方式：骑马钉
H22003英文说明书 : 0106010022067

2x2 VIDEO WALL CONTROLLER
User Manual
The product name and brand name may be registered trademark of related
manufactures. ™ and ® may be omitted on the user manual. The pictures in this
user manual are just for reference. We reserve the rights to make changes
without further notice to a product or system described herein to improve
reliability, function or design.
Disclaimer

· Important Safety Instructions
· Introduction
This product is a 1-in-4-out video wall controller, supports one HDMI source
input and four HDMI outputs. Supports 1x1/1x2/1x3/1x4/2x2 splicing modes,
which can be set by RS-232 or dip switch. The product can flexibly adapt to
different installation requirements, which can be widely used in security
monitoring, rail transit, broadcasting, smart cities, home theatre, training and
other fields.
1. To prevent electric shock, please ensure that all devices are properly
grounded.
2. Do not place this device near or over a radiator or heat register, or where it
is exposed to direct sunlight.
3. Do not expose this device to rain or place it near water. Any liquid that goes
into the device may cause a failure, fire, or electric shock.
4. Do not place the device on an uneven or unstable surface. The device may
fall resulting in a malfunction.
5. Never insert anything metallic into the open parts of this device. This may
cause a danger of electric shock.
6. If a third-party power supply is used, please ensure that the power supply
specifications meet the product requirements.
· Features
1. Supports 1 HDMI signal input and 4 HDMI signal output.
2. Support up to 1920x1200@60Hz resolution, downwards compatible.
3. Support a variety of splicing modes, such as 1x1/1x2/1x3/1x4/2x2, etc.
4. Support dip switch switching splicing mode.
5. Support RS-232 control instruction to set splicing mode.
2

Mode switch Switch splicing mode
DC5V Power input Connect with DC 5V/1A power adapter
Controller x1 Power Adapter
5V/1A x1
User manual x1
Mounting ear
x2
Screw x6 Grounding
screw x1
· Package Contents
6. Support 3.5mm left/right channel audio output.
7. Supports 180-degree rotation of HDMI1/2 display image in 2x2 mode
(when the upper displays installed upside down).
8. Firmware upgrading via micro USB port.
9. Lightning protection, surge protection, ESD protection.
10. Plug and play, no need to install drivers.
43
⑤
①
②
③
④
⑥
⑦
⑧
⑨
⑩
Reset
1) Press to restart the video wall controller;
2) Press and hold for 3 seconds to alternately realize
180° rotation of HDMI1/2 display image (in 2x2
mode, press and hold for 3 seconds to release
when the black screen occurs);
3) Press and hold for 10 seconds to restore factory
settings (wait until the power indicator is flashing
to release)
Power light
1) Steady on: The power is on
2) Slow flash: The transmitter and the receiver are
connected but no video data transmission
3) Quick flash: The factory settings have been
restored
L/R audio output Separate output of HDMI signal source audio
HDMI signal light
x4
Corresponding to 4 HDMI outputs respectively, the
indicator light of normal signal transmission is
always on
RS-232
Connect the computer for command control
Baud rate: 9600, Only when the dip switch is set to
‘111’, the mode can be switched through RS-232
Micro-USB port Used for device firmware upgrading
HDMI signal
output x4 Connect with HDMI splicing display devices
HDMI signal input Connect HDMI signal source
· Panel Description
①② ③ ④ ⑤
⑥⑦ ⑧ ⑨ ⑩
Terminal Block
x1

Example
Control command 1 ES 04 On\n
5 6
Insert the terminal into the controller and connect it to external equipment.
The three pins are GND/RXD/TXD, and the splicing mode can be set by RS-232
instruction. The default is as follows:
Baud rate: 9600
Date bits: 8
Stop bits: 1
Parity: None
3. RS-232 control
Control command Functional description
Reset\n Reset, device restart
ES XX On\n
ES XX Off\n
ES XXX\n
‘XX’ indicates the corresponding HDMI port, which
can be turned on or off.
From right to left, the HDMI ports are: HDMI: 01,02,03,04
All means all HDMI ports
‘XXX’ means splicing mode
000——1x1;001——2x1;010——1x2;011——3x1
100——1x3;101——4x1;110——2x2;111——1x4
Recover\n
Status\n
Restore the factory settings and read the current dialing
status by default
Status information printing
Status:
Baud 9600
ES 01 OK
ES 02 OK
ES 03 FAIL
ES 04 FAIL
ES 001 OK
Baud XX\n ‘XX’ represents the baud rate value
9600（default）,19200, 38400,57600,115200
1) Connect the controller with the signal source and splicing screen through
HDMI cable.
2) According to the number of splicing screens, the matching splicing mode
can be selected by dip switch.
3) When using RS-232, the dialing code should be set to ‘111’, and different
splicing modes can be switched through the serial port instruction.
4) If you need to output signal source audio independently, please connect the
speaker or power amplifier with a 3.5mm audio cable.
5) Connect the power supply, and the product starts to work.
2. Connection Instructions
· Installation Procedures
1. Connection Diagrams
HDMI Input
PC
HDMI output 2
HDMI output 1
HDMI output 3
HDMI output 4
Audio output
Video wall controller
Functional details Open the ‘04’HDMI port

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Remarks：
1)‘\n’ Newline character.
2) The splicing mode can be switched by ‘RS-232’or ‘dip switch’. Only
when the dip switch is set to ‘111’ can be splicing mode be switched by
RS-232 instruction.
3) Display Rotation Modes：
① When the dip switch is in position "110", enter the control command
ES201\n to realize 180-degree rotation of HDMI1/HDMI2 display image ,
and then enter the control command ES 200\n to resume;
② When the dip switch is in position "111", enter the control command ES
110\n to switch to 2x2 mode, then input the control command ES 201\n
to realize 180-degree rotation of HDMI1/HDMI2 display image, and enter
the control command ES 200\n to resume;
4) When the dip switch is in position "111", the display will show the image in
the splicing mode set by RS-232 control, if it is not in "111" mode, the display
will show the image in the mode set by the dip switch. When the dip switch
is in position "111", the setting mode will be memorized after using RS-232
control, and the display will show the last RS-232 control setting mode, and
the 1x4 mode can be restored by restoring the factory setting or the RS-232
ES111\n command.
Control command 5 Baud 19200\n
Functional details
Return value
Baud 19200 OK
Received successfully
Received unsuccessful
Baud 19200 OK
Baud 19200 FAIL
Control command 2 ES All Off\n
Return value
Received successfully
Received unsuccessful
ES 04 On OK
ES 04 On FAIL
Functional details
Return value
Close all HDMI ports
Received successfully
Received unsuccessful
ES All Off OK
ES All Off FAIL
Control command 3 ES 001\n
Functional details
Return value
Select; 2 x 1 splicing mode
Received successfully
Received unsuccessful
ES 001 OK
ES 001 FAIL
Control command 4 Reset\n
Functional details
Return value
Reset, device restart
Received successfully
Received unsuccessful
Reset OK
Reset FAIL

9 10
Built-in 8 splicing mode can be switched by dip switch. dip switch means ‘1’
up, dip switch means ‘0’down, and the default is ‘000’.
4. DIP Switch
Dip switch state
123
0 0 0 1x1
2x1
vertically
1x2
horizontally
3x1
vertically
0 0 1
0 1 0
0 1 1
Splicing mode
1
HDMI Out 4 = HDMI Out 3
2
3 4
3
1 2
3 4
1 2
3 4
1
2
3
4
2x2
vertically
1x4
horizontally
(Support
RS-232 at the
same time）
1 1 0
1 1 1
1 2
12 3 4
3 4
1x3
horizontally
4x1
vertically
1 0 0
1 0 1
HDMI Out 4 = HDMI Out 3
1 2 3
1
2
3
4
4

11
· FAQ
Q: Picture quality is not fluent and stable?
A：1) Please check and make sure all HDMI cables are connected well.
2) Try to connect the source device to display device directly, or change
to another source device for a try to see the picture quality.
Q：Display image black screen, don’t display?
A：1) Please check whether the signal source output resolution is the
supported by the product.
2) Please check whether the HDMI cable is firmly connected and plug the
HDMI cable again.
3) Please check whether the HDMI output is turned off by using RS-232
command.
Q：NO response when using RS-232 control to send instructions to switch
splicing modes?
A：1) Only when the dip switch is set to ‘111’can it be switched by RS-232
instruction.
2) Confirm whether the baud rate of the product is consistent with the
settings of the serial port tool, the default baud rate of the product is
9600.
12
Power
Operating
Environment
Physical
Properties
DC5V/1APower Supply
-20℃~60℃
Working
temperature
-30℃~70℃
Storage
temperature
0~90%RH（No condensation）Humidity
IronHousing
381gWeight
＜4W
Power
Consumption
· Specification
Video signal
Video signal
Splice Settings
4x HDMI
1x HDMI
HDMI 1.4
HDCP 1.4
HDMI Output
PCM3.5mm Output
PCMHDMI Output
1x1/2x1/1x2/2x2/3x1/1x3/4x1/1x4Mode
DIP Switch
Default baud rate: 9600
Only when the dip switch is set to ‘111’ can the
splicing mode be switched by RS-232 instruction
RS-232 (GND/
RxD/TxD)
HDMI Input
Compatibility
Resolutions
Items Description
1080P@60/50/30/25/24Hz, 720P@60/50Hz,
576P@50Hz, 480P@60Hz, 1920x1200@60Hz,
1680x1050@60Hz, 1600x900@60Hz,
1600x1200@60Hz, 1440x900@60Hz,
1400x1050@60Hz, 1366x768@60Hz,
1360x768@60Hz, 1280x1024@60Hz,
1280x960@60Hz, 1280x800@60Hz,
1280x768@60Hz, 1024x768@60Hz,
800x600@60Hz, 640x480@60Hz

Physical
Properties
BlackColor
160(L)*90(W)*20.6(H)mmDimensions
Protection
ESD protection
1a Contact discharge level 2 (±4KV)
1b Air discharge level 3 (±8KV)
Implementation of the standard: IEC61000-4-2
Lightning protection, Surge protection
13