Absen K Plus Series User manual

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K Plus Series User’s Manual
K2.9 Plus/K2.9D Plus/ K3 Plus/K3D Plus
Shenzhen Absen Optoelectronics Co., Ltd.

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Table of contents
*Safety information .………………………………………………………………………….…. 3
*Product introduction ……………………………………………………………………………. 7
About K Plus series ……………………………………………………………………………….. 7
Product Dimensions …………………………………………………………………………………. 8
Product specifications ……………………………………..…………………………………… 9
Product Value Features ………………………………………………………………………… 11
*Product Components ....………………………………………………………………………… 11
Cabinet Introduction ………………………………………………………………….…………... 11
Product Structure / Electronic Components Details …………………………………… 12
*Product Installation …………………………………………………………………..…………. 16
Front Installation / Rear Installation ………………………………..……………………… 16
Back Strap Installation………………………………………………………………………………… 17
*Product Wiring ………………………………………………………………………………… 17
Power Supply Wiring ……………………………………………………………………………. 17
Power Cable Wiring ……………………………………………………………………………. 18
Network Cable Wiring ………………………………………………………………………… 18
*Maintenance ……………………………………………………………………………………. 20
Preparation Tools ………………………………………………………………………………. 20
Front & Rear Maintenance ………………………………………………………………… 21
Check for Power Supply Short Circuit …………………………………………………… 23

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Safety information
The following marks on the product and in this manual indicate important
safety measures.
WARNING: Be sure to understand and follow all safety guidelines, safety instructions, warnings and precautions listed
in this manual.
This product is for professionals use only!
This product may result in serious injury or death due to fire hazard, electric shock or on dropping.
Please read this manual carefully before installing, powering up, operating and maintenance of thisproduct.
Follow safety instructions in this manual and on the product. If you have any questions, please seek
help from Absen.
Beware of electric shock!

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• To prevent electric shock the device must be properly grounded during installation. Do not ignore
using the grounding plug, or else there is a risk of electric shock.
• During a lightning storm, please disconnect the device’s power supply, or provide other suitable
lightning protection. If the equipment is not in use for a long time, please unplug the power cord.
• When performing any installation or maintenance work (e.g. removing the fuses, etc.,) make sure to
turn off the master switch.
• Disconnect AC power when the product is not in use, or before disassembling, or installing the
product.
•The AC power used in this product must comply with local building and electrical codes, and should
be equipped with overload and ground fault protection.
• The main power switch should be installed at a location near the product and should be clearly
visible and easily reached. This way in case of any failure the power can be promptly disconnected.
• Before using this product check all electrical distribution equipment, cables and all connected
devices, and make sure all meet current requirements.
• Use appropriate power cords. Please select the appropriate power cord according to the required
power and current capacity, and ensure the power cord is not damaged, aged or wet. If any
overheating occurs, replace power cord immediately.
• For any other questions, please consult a professional.
Beware of fire!
• Use a circuit breaker or fuse protection to avoid fire caused by power supply cables overloading.
• To avoid fire caused by power supply cables overloading.
• Do not stick or hang anything on the screen.
•Do not modify the product, do not add or remove parts.
• Do not use the product in case ambient temperature is over 40℃.
Beware of injury!
• Warning: Wear a helmet to avoid injury.
• Ensure any structures used to support, fix and connect the equipment can withstand at least 10
times the weight of all the equipment.

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• When stacking products, please hold products firmly to prevent tipping or falling.
• Ensure all components and steel frames are securely installed.
• When installing, repairing, or moving the product, ensure the working area is free of obstacles, and
ensure the working platform is securely and stably fixed.
• In the absence of proper eye protection, please do not look directly at the lit screen from within a 1
meter distance.
• Do not use any optical devices that have converging functions to look at the screen to avoid burning
the eyes.
WARNING: Beware of suspended loads.
LED lamps used in the module are sensitive and can be damaged by ESD (electrostatic discharge).
To prevent damage to LED lamps, do not touch when the device is running or switched off.
WARNING: The manufacturer shall not bear any responsibility for any incorrect, inappropriate,
irresponsible or unsafe system installation.

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Product disposal
• Any component that has a recycling bin label can be recycled.
• For more information on collecting, reusing and recycling, please contact the local or regional waste
management unit.
• Please contact us directly for detailed environmental performance information.
Warning: Changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user's authority to operate the equipment.
NOTE: This equipment 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 when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.

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Product introduction
About K Plus Series
K2.9 Plus/ K2.9D Plus/K3 Plus/K3D Plus are designed for middle-end indoor fixed
mounted that are high contrast ratio display with unique competitive advantages. Its
cabinets are light and thin, only 11kg/cabinet, and only 65mm thickness. The thin
cabinets are made of aluminum, use magnetic modules, support complete front and
rear installation and complete front and rear maintenance.
The product is primarily used at retail, hotel, commercial real estate, conference hall,
and for various other applications.
Nowadays, with the LED display industry becoming severely standardized, K Plus
Series stands out among all similar products with its delicate appearance, thin and
light structure, excellent display effect, full-featured functions, easy maintenance,
and other unique advantages, providing good business opportunities for capable and
influential contractors, service providers and advertisers.

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Product Dimensions
Cabinet Size
Module size：250mmx250mm

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Product specifications
Parameter
K2.9 Plus
K2.9D Plus
K3 Plus
K3D Plus
Physical
Parameter
LED Type
Black
SMD2121
SMD1921
Black
SMD2121
SMD1921
Pixel Pitch (mm)
2.97
2.97
3.9
3.9
Panel Dimensions
(WxHxD)/(mm)
500×1000×65
500×1000×65
500×1000×65
500×1000×65
Pixel Per Panel
168×336
168×336
128×256
128×256
Panel Weight (kg)
11
11
11
11
Panel Material
AL
Die-casting
AL
Die-casting
AL
Die-casting
AL
Die-casting
Module Dimensions
(WxH)/(mm)
250×2 50
250×2 50
250×2 50
250×2 50
Optoelectronic
Parameter
Brightness (nit)
700
3000
700
3000
Refresh Rate (Hz)
3840
3840
1920
1920
Gray scale (bit)
16384
16384
16384
16384
Contrast Ratio
4000:1
4000:1
4500:1
4000:1
Color Temperature (K)
6500
6500
6500
6500
Viewing Angle (H/V) (°)
140/140
140/140
140/140
140/140
Driving Type
1/28
1/28
1/16
1/16
AC Operating Voltage (V)
100~240
100~240
100~240
100~240
Power Consumption
(Max./Avg.)(W/m²)
300/100
420/140
270/90
390/130
Application
Parameter
Storage Temperature
(℃)
﹣40~﹢60
﹣40~﹢60
﹣40~﹢60
﹣40~﹢60
Operating Temperature
(℃)
﹣10~﹢40
﹣10~﹢40
﹣10~﹢40
﹣10~﹢40
Storage Humidity (RH)
10﹪~90﹪
10﹪~90﹪
10﹪~90﹪
10﹪~90﹪
Operating Humidity (RH)
10﹪~90﹪
10﹪~90﹪
10﹪~90﹪
10﹪~90﹪
IP Rating (Front/Rear)
IP40/IP21
IP40/IP21
IP40/IP21
IP40/IP21
LED Lifetime (H)
100000
100000
100000
100000
Module Maintenance
Front/Rear
Front/Rear
Front/Rear
Front/Rear
PSU & Others
Maintenance
Front/Rear
Front/Rear
Front/Rear
Front/Rear
Panel Installation Type
Front/Rear
Installation
Front/Rear
Installation
Front/Rear
Installation
Front/Rear
Installation
Certificate
TUV-CE+RoHS+ET
L+FCC
TUV-CE+RoHS+ET
L+FCC
TUV-CE+RoHS+ET
L+FCC
TUV-CE+RoHS+
ETL+FCC

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Product Value Features
*Light and thin product. Cabinet weight is less than 22kg/sq.m, with only 65mm
thickness, with more than 30% reduction in weight and over 15% reduction in
thickness compared to previous products in the same product platform.
*High precision with great screen surface flatness, because the cabinets are made of
aluminum.
*Complete front or rear installation can be adopted for wall-mounted installation,
with magnetic modules, power supply, signal receiving card, HUB, cable wirings,
etc., accessible from the front, ensuring easy and fast servicing.
*Complete front or rear maintenance. Perfect for environments where only rear
maintenance is available like window display, but also perfect for environments
where only front maintenance is allowed, such as wall mounted installation at
malls.
*High contrast ratio and high refresh rate meet the requirement of picture quality.
*Fan-less design for cabinets and power supply, eliminating noise and reducing
power consumption. More energy savings.
*Meet the EMC certification to ensure anti-jamming in use.
Product Components
Cabinet Introduction

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Product Structure / Electronic Components Details
Product structure consists of two parts: Cabinet and module.
Cabinet structure: Full aluminum die-casting cabinet is extremely thin and light.
Cabinet have two different type：500×1000mm and 500×750mm.
Cabinet can be installed in rotation splice, and it can be easily combined into kinds of
cabinet size
Splicing screws between panels

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Modular structure: Magnetic modules. Modules can also be rotated by 90 degrees
for installation. When rotating the module, the upper and lower four modules of the panel
are connected with a row of wires, and the four modules in the middle of the panel are
connected with a row master block.
the upper
and lower four
modules
row master block

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Receiving card and hub card
Up and down signal cable, 1.2 m length：
Left and right signal cable, 0.5m length：
Up and down power cable, 1.2m length：
Left and right power cable,0.4m length：
Screen long power cable, 10m length：
Receiving
card
HUB card

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Packaging （10 in 1）
Installation-use connecting plates and mounting bolts
Connecting Plates
M8×60

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Product Installation
Various installation methods are available for this product: front installation, rear
installation, as well as back strap installation.
Front Installation
Remove the back cover of the module for installation
Rear Installation
Mounting screw
hole
Splicing screws
between panels
Mounting
screw
hole
Splicing
screws
between
panels

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Back strap installation
Product Wiring
Power Supply Wiring
• Preparation before wiring
Before connecting to power supply and switching on control signal to the entire
screen, please carefully check the power supply and signal cable connections. Please
carefully check the "L" line, "N" line and "PE" of each cabinet’s AC inlet, and ensure
there is no short circuit between the three lines (Use multimeter to measure).
• Power Supply Cabling Instructions
Please calculate and select the power distribution box or socket type based on
maximum power consumption. Please consult your power distribution box
manufacturer to specifically match. Cabinet’s input voltage is 100-240V/AC, and
3X1.5mm²(3X16AWG)power cable is used to connect from distribution box cabinets.
The panel is
locked on the
back strap

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• Cabinet terminal connection diagram
Power Cable Wiring
The K Plus series use a 3X1.5mm² (3X16AWG) power cable to connect from the
distribution box or socket to the bottom of the cabinet.
At an input voltage of 220V, one power cable can load 8 panels of K2.9D Plus; at an
input voltage of 110V, one power cable can load 4 panels of K2.9D Plus.
At an input voltage of 220V, one power cable can load 11 panels of K2.9 Plus; at an
input voltage of 110V, one power cable can load 5 panels of K2.9 Plus.
At an input voltage of 220V, one power cable can load 12 panels of K3 Plus; at an
input voltage of 110V, one power cable can load 6 panels of K3 Plus.
At an input voltage of 220V, one power cable can load 8 panels of K3D Plus; at an
input voltage of 110V, one power cable can load 4 panels of K3D Plus.
Signal interfaces,
no difference for input and output

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Network Cable Wiring
The network cable is connected from left to right. Please calculate the resolution as
per load range. Please note that the load pixel range for each network interface is
not more than 650,000 pixels.

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Maintenance
Preparation Tools
Front & Rear Maintenance
Module Front Maintenance: Use front maintenance tool to take off module.
Module Front Maintenance：Use
front maintenance tool to take off
module.
Front Maintenance Tools
Screwdriver
Multimeter

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Module Rear Maintenance:
HUB can be removed from the
panel ；The power supply is
removed from the opening for
maintenance
The module is removed from
the front of the panel