Digitus DS-55508 User manual

4K HDBaseT™ HDMI
Extender Set, 150 m
Manual
DS-55508

2
Table of Contents
1. Introduction ............................................................................2
2. Main Features .........................................................................3
3. Package Contents ....................................................................3
4. Specification............................................................................3
5. Operating Controls and Functions............................................5
5.1 Transmitter Panel...................................................................5
5.2 Receiver Panel........................................................................7
5.3 IR Pin Definition .....................................................................9
6. Application Example..............................................................11
1. Introduction
The HDBaseT™ HDMI Extender Set enables uncompressed,
high-resolution signal transmission over large distances using a simple
copper data cable. The maximum transmission distance is 150 m (Full
HD). 4K signals can be extended to up to 120 m. Thanks to PoC, only
one unit needs to be supplied with power by an external power
adapter. RS232 and bi-directional IR transmission are also included as
features. Thanks to an HDMI loop-out to the transmitter unit, a local
monitor can be connected to control the output to the receiver.

3
2. Main Features
•Supports HDBaseT™ 1.0 via CAT6A/7/8 cable up to 100 m
•Supports 4K2K/60Hz (4:4:4)
•Maximum transmission distance (UHD 4K2K): 120 m
•Maximum transmission distance (Full HD 1080p): 150 m
•Video bandwidth: 18 Gbps
•HDMI loop-out to the transmitter unit
•PoC (Power over Cable) – Only the unit requires an
external power adapter
•HDCP 2.2 / 1.4
•HDR, HDR10+, Dolby Vision, HLG
•R232 signal transmission
3. Package Contents
•1x Transmitter unit
•1x Receiver unit
•1x IR transmission cable (1.5 m)
•1x IR receiver cable (1.5 m)
•1x Power adapter (DC 24V/1A, 1.5 m)
•2x 3-pin Phoenix connector
•4x Mounting plate
•1x User manual
4. Specification
Technical
ESD Protection
Human body model
±8kV (Air-gap discharge)
±4kV (Contact discharge)

4
Connections
Transmitter
•1x HDMI input (4K/60Hz) –
Connection signal source
•1x RJ45 (HDBaseT™) output –
Connection CAT transmission cable
•1x HDMI loop-out / output – Connection of
local monitor (source device)
•1x IR input to receive remote control signals
•1x IR output for control of the source device
•1x RS232 (3-pin Phoenix) for RS232
command transmission
•1x Power adapter input (DC 24V/1A), screw
connector – Connection for external power
adapter
•1x Micro USB input – Service/remote
maintenance update
Receiver
•1x HDMI output (4K/60Hz) – Connection
output device
•1x RJ45 input (HDBaseT™) – Connection
CAT transmission cable
•1x RS232 (3-pin Phoenix) for RS232
command transmission
•1x 3.5 mm stereo audio output
•1x IR input to receive remote control signals
•1x IR output for control of the output
display
•1x Power adapter input (DC 24V/1A), screw
connector – Connection for external power
adapter
•1x Micro USB input – Service/remote
maintenance update

5
Mechanical
Housing Metal
Color Black
Dimensions
(1 unit)
L 14 x W 6.5 x H 1.8 cm
Weight Transmitter: 160g, Receiver: 155g
Power
Consumption
approx. 9.36 W
Operating
Temperature
0 - 40°C
Resolution /
Cable Length
4K60 -
Feet / Meters
4K30 -
Feet / Meters
1080P60 -
Feet / Meters
HDMI IN / OUT 16ft / 5M 32ft / 10M 50ft / 15M
The use of “Premium High-Speed HDMI” cable is highly recommended.
5. Operating Controls and Functions
5.1 Transmitter Panel

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No. Name Function description
1 Power LED
Red LED indicates that the transmitter is
powered on
2 SERVICE port Firmware update port
3 DC 24V
DC 24V/1A power supply input port.
Note that the extender supports PoC function, it
means that either transmitter or receiver is
powered on by 24V/1A power adapter, the other
one doesn’t need power supply
4 HDBT OUT
RJ45 connector for connecting the HDBT
IN port of receiver with a CAT 5e/6 cable
5
Connection
Signal
Indicator
lamp
•Illuminating: Transmitter and Receiver
are in good connection status
•Flashing: Transmitter and Receiver are
in poor connection status
•Dark: Transmitter and Receiver are not
connected
6
Data Signal
Indicator
lamp
•Illuminating: HDMI signal with HDCP
•Flashing: HDMI signal without HDCP
•
Dark: No HDMI signal
7 HDMI OUT HDMI loop output for display
8 HDMI IN HDMI source input
9 IR IN
IR input port for receiving the signal of IR
remote
10 IR OUT
IR output port for control of source
device. This IR output signal is from the IR
IN port of receiver
11 RS-232
3-pin Phoenix connector for RS-232
command transmission.

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The RS-232 command will be pass-
through from transmitter to receiver or
from receiver to transmitter
5.2 Receiver Panel
No. Name Function description
1 Power LED
Red LED indicates that the receiver is
powered on
2
SERVICE
port
Firmware update port
3 DC 24V
DC 24V/1A power supply input port.
Note that the extender supports PoC function, it
means that either transmitter or receiver is
powered on by 24V/1A power adapter, the other
one doesn’t need power supply
4 HDBT IN
RJ45 connector for connecting the HDBT
OUT port of transmitter with a CAT 5e/6
cable
5 Connection
•Illuminating: Transmitter and Receiver
are in good connection status

8
Signal
Indicator
lamp
•Flashing: Transmitter and Receiver are in
poor connection status
•Dark: Transmitter and Receiver are not
connected
6 Data Signal
Indicator
•Illuminating: HDMI signal with HDCP
•Flashing: HDMI signal without HDCP
•Dark: No HDMI signal
7 HDMI OUT HDMI output for display
8
AUDIO
OUT
3.5mm stereo connector for analog audio
output
9 IR IN
IR input port for receiving the signal of IR
remote
10 IR OUT
IR output port for control of display device.
This IR output signal is from the IR IN port of
transmitter
11 RS-232
3-pin Phoenix connector for RS-232
command transmission.
The RS-232 command will be pass-through
from transmitter to receiver or from
receiver to transmitter

9
5.3 IR Pin Definition
IR Receiver and Blaster pin’s definition is as below:
IR RECEIVER
IR BLASTER
IR Blaster
IR Blaster
Signal
Power
NC
IR Receiver
IR Signal
Power
Grounding

10
The following is IR system diagram about IR cable use method.
1 Transmitter 6 TV
2 TV remote 7 IR Blaster cable
3 DVD 8 IR Receiver cable
4 CAT 5e/6 cable 9 DVD remote
5 Receiver
Note: When the angle between the IR receiver and the remote
control is ± 45°, the transmission distance is 0-5 meters; when the
angle between the IR receiver and the remote control is ± 90°, the
transmission distance is 0-8 meters.