Digitus DS-55321 User manual

Wireless HDMI KVM Extender
Set, 200 m
Quick Installation Guide
DS-55321

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Table of Contents
1. Introduction.......................................................................... 2
2. Main Features ....................................................................... 3
3. Package Contents.................................................................. 3
4. Product Features................................................................... 4
5. Product Specification............................................................. 5
6. Connection Instruction .......................................................... 7
Install Transmitter................................................................. 7
Install Receiver...................................................................... 7
7. Questions and answers.......................................................... 9
1. Introduction
The Wireless HDMI® KVM Extender Set transfers your HDMI® video
and audio signals in Full HD without a cable over a distance of up to
200 m (unobstructed view). Thanks to KVM functionality, the
mouse/keyboard can be connected to the receiver unit, which makes
it possible to control the signal source directly on the output device.
Using the HDMI loop-out to the transmitter unit, a local monitor can
be connected in order to control the output to the receiver.
The auto-pairing function ensures straightforward installation.

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2. Main Features
•Wireless HDMI signal transmission up to 200 m (with
unobstructed view)
•Point-to-point connection - 1x transmitter (source) + 1x receiver
(output device)
•Supports transmissions resolutions up to Full HD (1080p / 60 Hz)
•KVM functionality for connection to mouse and keyboard
•Touch Screen Back Control - Supports touch screen panels (via USB
connection on the receiver)
•Supports input signals with up to 4K/60Hz
•HDMI loop-out (4K/60Hz) for connection of a local monitor to the
transmitter unit
•Auto-pairing function - No configuration required
•AES 128 bit encryption
3. Package Contents
•1x Transmitter unit
•1x Receiver unit
•2x USB Power adapter (DC 5V/1A)
•1x IR transmitter (1.5 m)
•1x Micro USB A cable (0.8 m) for data transmission
•2x Micro USB A cable (1.5 m) for power supply
•2x HDMI cable (1.5 m)
•1x QIG

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4. Product Features
Features
Description
Plug and play
Simply connect the transmitter with
the PC HDMI ports and connect the
receiver with the screen, the
transmitter and receiver will connect
automatically
4K60 HDMI IN
Supports up to 4K60 HDMI IN
4K60 HDMI Loop out
Supports 4K60 Loop out with no
latency
Transmission Quality
Supports 1080p transmission
resolution
IR Back Control
Support IR back control function for
20KHz-60KHz remote signal
USB KVM
Support USB KVM function for
mouse/keyboard/touch panel back
control
Auto Pairing
Support transmitter and receiver auto
pairing, no configuration needed
Auto Selection
TXRX will automatically select a
channel with less interference to
connect according to the current
Wi-Fi interference situation
Wi-Fi MIMO Technology
Support the fast 802.11ac MIMO
technology which increase Wi-Fi
speeds

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Anti-interference
Technology
Proprietary anti-interference
technology to ensure stable
streaming in a crowded Wi-Fi
environment, support up to 6 sets of
equipment running at the same time
at one space
High Security Protection
No worries about the data security,
Wireless HDMI KVM Extender Set
supports AES 128-bit security
encryption and WPA2/WPA-PSK/
WPA2-PSK authentication protocol to
protect data. HDCP supported to
protect the content
5. Product Specification
Feature
Video Input
Resolution
4K60,
4K30,1080i/1080p/720p/576p/480p, up
to 1080p at 60fps, suggests to choose
the best resolution that TV can support
to guarantee best display effect
HDMI loop out
Supports 4K60 Loop out with no latency
HDR supported (HDR10/HDR12/Dolby
Vision/HLG)
Video Input/Output
HDMI interface
End-to-End Latency
About 120 ms
Transmission distance
About to 200 m (clear line of sight)
Connectivity
802.11 ac WiFi Mimo technology

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Interface
HDMI OUT x 1
HDMI in x 1,
Micro USB x 1,
IR Jack x 1
Micro USB (DC 5V)
LED
Red/Blue
Power supply
DC5V/1A
Power Consumption
About 2,5 W
Dimension
15.5 x 7.9 x 22 cm
Weight
326 g
Temperature Range
Operating
0°C to +40°C (+32°F to +104°F)
Storage
-10°C to +60°C (+14°F to +140°F)
Humidty
Operating
10% to 80% relative humidity
Storage
5% to 90% relative humidity
Receiver Features
Description
HDMI OUT
1080P60
Video Input/ Output
HDMI interface
End-to-End Latency
About 120 ms
Transmission distance
About to 200 m (clear line of sight)
Connectivity
802.11 ac WiFi Mimo technology
Interface
HDMI OUT x 1
USB x 1
Button x 1 (reset of factory)
Micro USB (DC 5V)

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LED
Blue x 1
Power Supply
DC 5V/1A
Power Consumption
About 2,5 W
Dimension
15.5 x 7.9 x 22 cm
Weight
326 g
Temperature Range
Operating
0°C to +40°C (+32°F to +104°F)
Storage
-10°C to +60°C
(+14°F to +140°F)
Humidity Range
Operating
10% to 80% relative humidity
Storage
5% to 90% relative humidity
6. Connection Instruction
Install Transmitter
Step1: Connect the power adapter (5V, 1A) to Transmitter and wall
socket, the Transmitter will power on automatically, the
power LED light will turn on flashing blue
Step 2: Connect video source (Receiver, DVD player, PC) to
Transmitter (HDMI In) by HDMI cable
Step3: Connect Transmitter (HDMI out) to TV through HDMI cable
Install Receiver
Step1: Connect the power adapter (5V, 1A) to Receiver and wall
socket, the Receiver will power on automatically, the power
LED light will turn on flashing blue
Step 2: Connect Receiver (HDMI Out) to TV by HDMI cable which
comes with the package
Step 3: Wait around 50 seconds, the video will be sent from
Transmitter to Receiver

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Transmitter
Receiver back
view
Receiver front
view
1. HDMI Loop out
4. USB cable
2. HDMI In
5. HDMI Out
3. IR Emitter cable
6. IR Extender function
How to control the device by using remote control
1. Connect the IR emitter cable with the Transmitter IR jack, and
stick the IR probe in front of the IR sender of the video source
(Please find the correct position of IR sensor of the video source
or the IR signal won't pass through)
2. Use the source device remote control aiming at IR receiver hole
of the Receiver front panel to control the source device, the
distance between this IR receiver probe and remote control
should be within 5m
How to control the device by using mouse/keyboard
1. Connect the PC Transmitter by using a Micro USB - USB Type A
cable
2. Connect the Receiver USB jack with a mouse/keyboard
(USB nano receiver)
3. Then you can use the mouse/keyboard to control the PC
in other room

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7. Questions and answers
Q1: No Video/Bad Video or Incorrect Video/Video Stuck
A1: This device will take about 25 seconds booting time after plug in
the main power if all connects are OK, then you should see the
signal on the TV on both Transmitter and Receiver
A2: Please make sure the HDMI in/out are connected correctly, if
above connects are OK, then make sure you are using the HDMI
cable inside the gift box, which provides noise reduction and
shielding, and no noise will affect the wireless transmission (be
sure to use the cable from your media source to the Transmitter
HDMI IN interface)
A3: Please check whether the HDMI-in source is OK by connect it
directly to TV
A4: Please make sure the HDMI-in is connected, otherwise no signal
will output and the TV may stay in blue screen on both
Transmitter and Receiver
A5: If above still not OK, please check the video source resolution
and if it is supported by the device. Please refer the specification
for supported resolution. If not, please set to right resolution
according to the specification
A6: The device is using 5GHz WiFi connectivity, which will be
interfered by other wireless devices, like WiFi router or
microwave. Please place the Transmitter/ Receiver at other
location with less interference and check again
A7: Try another HDMI cable with good shielding since sometimes
some cables may have compatibility issues
A8: If problems still not solved, please restart both Transmitter/
Receiver and try again

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Q2: Bad or incorrect audio
A1: Our device only support 48/44. 1KHZ 16 bit digital audio, please
check the source device set to correct audio standard
A2: If problems still not solved, please restart Transmitter/ Receiver
and try again
Q3: The coverage distance is short
A1: The max WiFi distance between Transmitter/ Receiver could
reach 200 meters (Clear light of sight)
If the environment is not good (too many WiFi signals or with
concrete wall), the distance could be much shorter
Q4: The USB keyboard and mouse not working from RX to TX
A1: Make sure the Transmitter is connected to the source via a USB
cable connection
Q5: The IR blaster doesn’t work
A1: Make sure to use the original remote control of the video source
A2: Please stuck the IR emitter probe in the surface of IR window of
the source device, if you are not sure the correct position of IR
window of source device, please refer to the manual of source
device
A3: Please point the remote control to the Receiver front panel with
5 meters directly
A4: The IR extender cable based on 20KHz-60KHz remote signal
protocol, which support most of the IR remote in the market, for
special standard or old remote may not supported