Digitus DS-55500 User manual

4K HDMI Extender Set,
HDBaseT™, 4K/30Hz, 70 m
Quick Installation Guide
DS-55500 Rev.3

2
Table of Contents
1. Introduction......................................................................... 3
2. Product Features ................................................................. 3
3. Package Content.................................................................. 3
4. Specification ........................................................................ 4
5. Penal Description................................................................. 5
6. Connection........................................................................... 6
7. Installation Requirements ................................................... 7
8. Troubleshooting................................................................... 7
Important Safety Instructions:
Please read below safety instructions carefully before
installation and operation:
•Please pay attention to all the warnings and hints on this
device.
•Do not expose this unit to rain, moisture and liquid.
•Do not put any stuff into the device.
•Do not repair or open this device without professional
people's guidance.
•Make sure good ventilation openings to avoid product
overheating damage.
•Shut off power and make sure environment is safe before
installation.
•Do not plug-in/out the connected cables when it is in using.
•Make sure the specification matched if using 3rd party DC
adapters.

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1. Introduction
The DIGITUS 4K extender set, HDBaseT™ offers an extender
solution up to 70m for the highest demands - for both high-
definition graphic display and also for absolutely fluent video
playback. It transmits digital and audio signals up to a maximum
distance of up to 70m. 4K content can be transmitted over up to
40m using a CAT 6 network cable. It consists of a transmitter as
well as a receiver unit. Two bi-directional infrared units (sender,
receiver) are also supplied, by means of which the remote
control of the connected input source can be used.
2. Product Features
•Extends the maximum length for HDMI cables to up to 70m
whereby only a simple network cable is used between a
sender and a receiver unit
•Extends 4K video contents to up to 40m with a CAT 6 cable
•Offers simple and quick distribution for HDMI video signals
- position your monitors wherever you wish
•Supports 4K Ultra HD (30Hz), 4096 x 2160p resolution
•Uses HDBaseT™ 1.0 technology
3. Package Content
•1x HDMI Extender transmitter unit
•1x HDMI Extender receiver unit
•2x Power supply unit: DC 12V/2A
•1x IR transmitter unit
•1x IR receiver unit
•2x Mounting Sets & Screws
•1x Instruction manual

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4. Specification
Items
Specifications
70m HDBaseT™ Extender
HDMI signal
4Kx2K, compatible with HDCP, support CEC and
24bits deep color
Resolution
Supported
480i/480P/576i/576P/720P/1080i/1080P/
3D/4Kx2K
Audio
LPCM, DTS Digital, Dolby Digital
Network cable
CAT5E/CAT6/CAT6A/CAT7
Transmission
length
CAT5E/
CAT6
60m UP to 1080P@60Hz 36bpp
35m
1080p@60Hz 48bpp,
1080p@60Hz 3D, 4Kx2K@
30Hz/60Hz video formats
CAT6A/
CAT7
70m UP to 1080P@60Hz 36bpp
40m
1080p@60Hz 48bpp,
1080p@60Hz 3D, 4Kx2K@
30Hz/60Hz video formats
Infrared back
Support 20~60kHz wide frequency devices and
Bi-directional IR transmission
Power supply
DC12V/1A x 2pcs
Power
consumption
< 8W
Product
dimension
98.5 (L) x 66.5 (W) x 23 (H) mm x 2pcs
Enclosure
material
Metal
Color
black

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5. Penal Description
HDMI to HDBaseT™ TX Sender
①HDMI IN: HDMI signal input to connect with HDMI source
device.
②IR IN: IR signal input to connect with IR receiver extension
cable.
③IR OUT: IR signal output to connect with IR blaster
extension cable.
④DC12V: Power input
⑤HDBT OUT: HDBaseT™signal output
HDBaseT™ to HDMI RX Receiver
①DC12V: Power input
②HDBT IN: HDBaseT™signal input
③HDMI OUT: HDMI signal output to connect with HDMI
display device.
④IR IN: IR signal input to connect with IR receiver extension
cable.
⑤IR OUT: IR signal output to connect with IR blaster
extension cable.

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LED indicators working status
①It is lighting on with power on.
②It is lighting on when TX and RX are well connected.
③It is lighting on when RX's HDMI OUT connects with HDMI
display device and has HDMI signal output.
6. Connection
1
Source
4
TV
2
Sender
5
IR OUT
3
Receiver
6
IR IN
6.1 Bi-directional IR pass back
•It supports bi-directional IR pass back. User cans control
DVD at TX end and control TV at RX end.
•If control at RX end, please connect IR blaster extension
cable with IR OUT of TX and connect IR receiver extension
cable with IR IN of RX. If control at TX end, please connect

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IR receiver extension cable with IR IN of TX and connect IR
blaster extension cable with IR OUT of RX.
7. Installation Requirements
1. HDMI source device
2. HDMI display
3. Network cables:
UTP/STP Cat5e/Cat6/Cat6A/Cat7 network cables are
following the standard of
8. Troubleshooting
Problems Causes Solutions
Non-power-
connected/
all LED off
Maybe the power
supply is not
connecting well
or use the wrong
power adapter
Please check if the
power supply is
connecting well and the
output voltage value is
correct as recommended
No sound or
sound issues
Maybe the HDMI
connection is not
well; the audio
format is not
supported by the
displays; the
source player set
another port to
output audio
Please check if the HDMI
cables are connecting
well; if the audio format
is supported by the
displays, customers can
change to the supported
audio format or the
player`s audio output is
setting HDMI audio
output or not
No picture or
picture flicker
Maybe the HDMI
cable quality and
UTP cable quality
Please check if the HDMI
and UTP connection is
well or change another

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is not good
enough or not
connecting well
good quality HDMI 1.4
standard HDMI cable or
UTP (CAT5e/CAT6 or
higher is recommended)
cable will solve the issue.
This is a Class A product. In home environment, this product may
cause radio interference. In this case, the user may be required
to take appropriate measures.
Hereby ASSMANN Electronic GmbH declares that the
Declaration of Conformity is part of the shipping content. If the
Declaration of Conformity is missing, you can request it by post
under the below mentioned manufacturer address.
www.assmann.com
Assmann Electronic GmbH
Auf dem Schüffel 3
58513 Lüdenscheid
Germany