Digitus DS-43308 User manual

4K HDMI® Matrix Switch,
4x4, 19"
User Manual
DS-43308

2
Dear Customer
Thank you for purchasing this product. For optimum performance and safety,
please read these instructions carefully before connecting, operating or using this
product. Please keep this manual for future reference.
Contents
Important safety notice ....................................................................................... 2
Package contents................................................................................................. 3
Introduction ........................................................................................................ 3
Features .............................................................................................................. 4
Panel Description................................................................................................. 4
RS232 Serial command ........................................................................................ 6
Connection Diagram ............................................................................................ 7
FAQ ..................................................................................................................... 8
Specification........................................................................................................ 8
Power Adapter information ................................................................................. 9
Disclaimer ........................................................................................................... 9
Important safety notice
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 the device or open the enclosure without professional person
guidance to avoid electronic shock.
•Make sure good ventilation openings to avoid product overheating damage.
•Turn off power and make sure environment is safe before installation.
•Do not plug-in/out the connection cables when it is in using to avoid cables
damage.
•Use DC12V/2A power adapter only. Make sure the specification matched if
using 3rd party DC adapters

3
Package contents
•1x Matrix Switch unit
•1x DC12V2A power adapter
•1x Remote Controller
•2x Wall-mount kit
•1x User manual
Introduction
This product is a 4×4 HDMI2.0 HD Matrix Switch, with 4 HDMI inputs and 4 HDMI
outputs. 4 HDMI inputs accommodate the simultaneous connection up to 4 high
definition video sources, such as satellite systems and Blu-ray players. 4 HDMI
outputs send the high definition audio/video signals to 4 HDTV displays. This
Matrix Switch supports IR remote control and button control for switching inputs
and outputs. This product is perfect for security system, digital monitoring system,
school education system, exhibition center, multimedia conference, command
system etc.

4
Features
1. Support 4 HDMI signal input and 4 HDMI signal output.
2. Support up to ultra HD resolution 4Kx2K@60Hz.
3. Transmission data rate up to 18Gbps.
4. Support IR remote control.
5. Support RS232 control.
6. Support button control for switching inputs/outputs.
7. Pure hardware design, plug and play.
8. Support 3D, CEC.
9. Support YUV4:4:4.
Panel Description
Front Panel
1
IR receiver window
Receive IR signal
2
Power indicator
LED indicator turn on when power on
3
Output select indicator
Display corresponding input channel
4
Output button
To choose input channel

5
Back Panel
5
RS232
RS232 control
6
HDMI output
Connect with HDMI display device
7
HDMI input
Connect with HDMI source device
8
Power input
Connect with DC12V/2A power adapter
Remote Controller
This remote controller is just used for
inputs or outputs switched/selected.

6
RS232 Serial command
For correct communication, set the RS232 parameters to the following setting:
Baudrate: 9600
Parity: None
Data Bits: 8
Stop Bits: 1
RS232 control
1) It supports RS232 control to select the input and output channel,
the baud rate is 9600, and the connector is a 9-pin port.
2) Use the serial port software, please set COM firstly, and then correspond
to the following figure in the various channel commands.
Instruction list
HDMI output
HDMI input 1
HDMI input 2
HDMI input 3
HDMI input 4
HDMI output1
PS11R
PS12R
PS13R
PS14R
HDMI output2
PS21R
PS22R
PS23R
PS24R
HDMI output3
PS31R
PS32R
PS33R
PS34R
HDMI output4
PS41R
PS42R
PS43R
PS44R
HDMI output1
PA1R PA2R PA3R PA4R
HDMI output2
HDMI output3
HDMI output4
Change all
output/input states
PAP1P2P3P4R,
Output 1 selects signal source P1
Output 2 selects signal source P2
Output 3 selects signal source P3
Output 4 selects signal source P4
Gets the current
output / input state
PA?R
Command return
All of the above commands, if they were sent successfully,
the output status will be returned accordingly
For example, send command “PA? R”
Return OK+
1
2
2
4
output 4 selects input 4
output 3 selects input 2
output 2 selects input 2
output 1 selects input 1
If the command is wrong, return “err”

7
Connection Diagram
1
RS-232 Control Signals
2
4x HDMI Display (Output)
3
4x HDMI Source (Input)
4
Power Adapter
1. Connect all your HDMI source devices to this product's inputs via HDMI cables.
2. Connect up to the HD display devices on the HDMI outputs via HDMI cables.
3. Power on all source device, this Matrix Switch and display device, then it works.
4. Select/switch inputs and outputs via IR remote, buttons or RS232 command.

8
FAQ
Q: No video/audio signal output on the displays?
A: 1) Please check and make sure the Matrix Switch is connected well
and powered.
2) Please check and make sure all HDMI cables are connected well
3) Please check and make sure the input channel of displays are correct.
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.
3) Please use high quality HDMI 2.0 standard cable when HDMI 4Kx2K
signal input.
Specification
Items
Specification
HDMI Signal
HDMI 2.0, Full compatible with HDCP 2.2
Inputs
4 HDMI
Outputs
4 HDMI
Transmission rate
18Gbps
Support resolution
480i@60Hz, 480p@60Hz, 576i@50Hz, 576p@50Hz,
720p@50/60Hz, 1080i@50/60Hz; 1080p@50/60Hz,
3840x2160@25/30/60Hz
Support audio format
DTS-HD/Dolby-true HD/LPCM7.1/DTS/Dolby-AC3/DSD
YUV
4:4:4
Video signal
0.5~1.5Vp-p(TM DS)
DDC signal
5Vp-p(TTL)
Video bandwidth
600MHz
HDMI port
Type A 19 pin, female
RS232
9 Pin serial port seat
Working temperature
0° ~ 60°C
Power supply
DC12V/2A
Power consumption
20W (Max)
Product dimension
429.8 (L) x 170.7 (W) x28 (H) mm
Weight
1.65 Kg
Color
Black

9
Power Adapter information
Information published
Value and precision
Unit
Manufacturer’s name or trade
mark, commercial registration
number and address
Mass Power Electronic Ltd
No.365, South Dongkeng Road,
Dongkeng To wn, Dongguan City,
523443, P. R . China
-
Model identifier
NBS24J120200HE
-
Input voltage
12
V
Input AC frequency
100-240Vac/ 50/60
Hz
Output voltage
12V
V
Output current
2A
A
Output power
24W
W
Average active efficiency
86.2
%
Efficiency at low load (10 %)
76.8
%
No-load power consumption
0.1
W
Disclaimer
The product name and brand name may be registered trademark of related
manufacturers. TM and ® may be omitted on the user manual. The pictures on the
user manual are just for reference, and there may be some slight difference with
the real products. We reserve the rights to make changes without further notice
to a product or system described herein to improve reliability, function or design.
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