Digitus DS-12890 User manual

KVM Switch, 4-Port, 4K60Hz,
4 x DP in, 1 x DP/HDMI out
Quick Installation Guide
DS-12890

2
Contents
1. INTRODUCTION ............................................................................... 3
2. PACKAGE CONTENTS ....................................................................... 3
3. FEATURES......................................................................................... 4
4. PANEL DESCRIPTION........................................................................ 5
5. SPECIFICATIONS............................................................................... 7
6. CONNECTION AND OPERATION ...................................................... 8
7. CONNECTION DIAGRAM................................................................ 11
8. POWER ADAPTER INFORMATION.................................................. 12

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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.
1. INTRODUCTION
This is a high-performance DP-KVM switcher. It routes high definition video (in
multiple resolutions up to 4kx2k@60Hz) and audio from any one of the several
sources to display units. This DP-KVM switcher not only has the key-press-switching
function, but also has intelligent function as well as hot pluggable function.
2. PACKAGE CONTENTS
Before attempting to use this unit, please check the packaging and make sure the
following items are contained in the shipping carton:
•1 x KVM Switch, 4-Port, 4K60Hz, 4 x DP in, 1 x DP/HDMI out
•1 x Power adapter for KVM switch
•4 x USB 3.0 connection cable (USB B to USB A)
•4 x DisplayPort™ cable 1.2 m
•1 x Infrared remote control
•1 x Infrared recipient with connection cable
•2 x Mounting bracket for table/wall installation
•1 x User manual

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3. FEATURES
•Support resolution up to 4Kx2K@60Hz
•Support RGB 4:4:4/ YCbCr 4:4:4/ YCbCr 4:2:2/ YCbCr 4:2:0
•Support KVM function
•Support a display (Either DP or HDMI) and a set of Keyboard and Mouse to
control four PCs with DP ports
•DisplayPort:
Support 8.1Gbps per channel (32.4Gbps all channels) bandwidth
Support 16bit per channel (48bit all channels) deep color
Support HDR
Note: Theoretically, DP resolution can be up to 8K, it is to be verified on
DP1.4 Graphic cards and 8K DP display
•HDMI:
Support 6Gbps per channel (18Gbps all channels) bandwidth
Support 12bit per channel (36bit all channels) deep color
Support HDCP 2.2/1.4
Support HDR
•Support infrared remote control function
•Support for switching LED indications
•Support Windows 2000/XP/Vista/Win7/Win8/Win10/Win11 and above /
Linux/ Apple Mac OS

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4. PANEL DESCRIPTION
Front Panel
1) Power Button: Press to turn on/off the unit.
2) Power Indicator: The LED will light up once the DC/5V is provided and the unit is
turned on.
3) Input Selection: When PC1/PC2/PC3/PC4 is selected, the corresponding “Select”
lights up to indicate input selection (“Select” LEDs flash in a loop under
automatic switching mode). “Online” LED lights up when the corresponding
USB-B port is connected.
4) IR EXT: Connect IR Extender to this port for IR signal reception from the remote
control.
5) IR: For IR signal reception from the remote control.
6) : 3.5mm MIC input port.
7) : 3.5mm stereo output port.
8) : USB 3.0 ports, mainly used for connecting to printers, scanners, U-disk, etc.

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Back Panel
9) Output ports:
Connect to a mouse or a keyboard.
Connect to a keyboard or a mouse.
Connect to an amplifier.
Connect to a MIC.
Connect “HDMI Out” to HDMI display.
Connect “DisplayPort Out” to DP display.
10) PC1 input ports:
Respectively connect to DisplayPort, USB, MIC, stereo ports of PC1.
11) PC2 input ports:
Respectively connect to DisplayPort, USB, MIC, stereo ports of PC2.
12) PC3 input ports:
Respectively connect to DisplayPort, USB, MIC, stereo ports of PC3.
13) PC4 input ports:
Respectively connect to DisplayPort, USB, MIC, stereo ports of PC4.
14) DC 5V: Plug the 5V DC power supply into the unit.

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5. SPECIFICATIONS
Connectors
Console Connectors
•USB 2.0-A x2 (Back)
•DisplayPort Female x1 (Back)
•HDMI Female x1 (Back)
•3.5mm Stereo Jack (Green, 1 Front, 1 Back) x2
•3.5mm Stereo Jack (Pink, 1 Front, 1 Back) x2
KVM Connectors
•USB 3.0-B x4 (Back)
•DisplayPort Female x4 (Back)
•3.5mm Stereo Jack (Green, Back) x4
•3.5mm Stereo Jack (Pink, Back) x4
USB HUB Connectors
•USB 3.0-A x2 (Front)
Resolution
Max Resolution
3840*2160@60Hz,
4096*2160@60Hz
Operating Frequency
HDMI Bandwidth
18G
DisplayPort Bandwidth
32.4G
Mechanical
Material
Metal
Size (L-W-H)
243*75*26mm
Weight (Net)
505.4g
Environmental
Operating Temperature
0°C to 45°C
Operating Humidity
10% to 85 % RH (no condensation)
Storage Temperature
-10°C to +80°C
Storage Humidity
5% to 90 % RH (no condensation)
Power Requirement
External Power Supply
DC 5V
Power Consumption (Max)
11.75W
ESD Protection
Human Body Model
±8kV (air-gap discharge) &± 4kV (contact discharge)

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6. CONNECTION AND OPERATION
Operation
1) Connect PCs to USB-B ports of the unit with USB cables; Respectively connect
MIC and stereo ports of the PCs to those(above the “DisplayPort In”) of the unit
with 3.5mm audio cables; Connect PCs to “DisplayPort In” ports of the unit with
DisplayPort cables.
2) Connect keyboard and mouse to the USB-A ports on the back panel of the unit;
Respectively connect microphones and amplifiers to the mic and stereo ports(on
the front panel/above “DisplayPort Out”) of the unit with 3.5mm audio cables;
Connect a display to “DisplayPort Out” of the unit with a max 2m DisplayPort
cable.(Or connect a display to “ HDMI Out” of the unit with an HDMI cable)
Note: When either “DisplayPort Out” or “HDMI Out” is connected, video is
output by the connected port automatically; When two of them are
conncected, video is output by DisplayPort.
3) Power the unit with DC 5V and press the power button, the “Power” indicator
lights up.The USB-B ports are connected normally and the “Online” indicators
light up. “Select” lights up to indicate the current selected PC.
4) Press the buttons on the front panel of the unit to select input, the
corresponding “Select” lights up. After selection, the display shows
corresponding image and the selected PC can be controlled by a set of keyboard
and mouse.
5) Remote control works the same as manual buttons.
1,2,3,4: For input selection. 1 specifies PC1, 2 specifies PC2,
3 specifies PC3 and 4 specifies PC4.
, For loop switching. Order: PC1→PC2→PC3→PC4→PC1….
6) For external function, connect printer/scanner/U-disk to the USB-A ports on the
front panel of the unit.

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Special Function Operation:
1) Mouse traversal function:
Place the mouse on the far right side of the display and continue to slide to the
right for 2 seconds, the unit automatically switches to the next port. Switching
order is : PC1→PC2→PC3→PC4→PC1→…;
2) USB-B detection switching function:
•When the unit detects that a PC is connected to the USB-B port of the unit,
the unit immediately switches to this PC and the corresponding “Online” and
“Select” indicators light up.
(For example: When PC1 is connected already, PC3 is connected to the unit
through USB-B port, then the unit immediately switches to PC3.
•When the current selected PC is powered off or the USB cable is dialed out,
the unit automatically switches to the next PC with the power on and the USB
port connected.
3) Hotkey function
(It doesn’t work on functional keyboard and only the 2 USB-A ports on the back
panel can get access to this function.)
Number
Hotkey Combination
Function Description
1
Scroll Lock++1Scroll Lock +→or↓
Switch to the next port
2
Scroll Lock++ Scroll Lock +←or↑
Switch to the previous port
3
Scroll Lock++ Scroll Lock +[N2]
Switch to PC N
4
Scroll Lock++ Scroll Lock +S3
Automatic switching function
(Default: 15 seconds)
5
Scroll Lock++ Scroll Lock +I+[N4]+[Enter]
Set the automatic
switching interval
(5~999 seconds)
6
Scroll Lock++ Scroll Lock +B+[1/0]5
Buzzer on/off
(Default: on)
7
Scroll Lock++ Scroll Lock
+F+L+A+S+H+[Enter]
All resume hotkey
default mode
6

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Note
•Hot keys are not case-sensitive;
•Buzzer sounds when switching between PC1 PC2, PC3 and PC4.
1“++” means to press 2 times in rapid succession. For example: “Scroll Lock ++ Scroll Lock + 1” means to
press the Scroll Lock button twice in rapid succession and then press number “1” button. The detection
between each hotkey code times out for 5 seconds. For example, if the Scroll Lock button is pressed for
the first time, and then the Scroll Lock button is pressed after more than 5 seconds, the hotkey
combination is invalid;
2“N” here indicates the number of the PC. For example, to switch to PC2, the hotkey combination is
“Scroll Lock ++ Scroll Lock + 2”;
3 Turn on this function, then DisplayPort, MIC and the speaker will enter the automatic switching mode
without USB. Press (except the space bar) any key to exit to the port before the automatic switching,
press the space bar to stay at the currently switched port. When switching automatically, the “Select”
LED flashes at the same time.
4“N” here indicates the number of switching interval which can be 5(seconds) to 999 (seconds);
5 “1” means on, “0” means off;
6This mode only has relation to the hotkey function of Number 4 and Number 6.

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7. CONNECTION DIAGRAM
Front Panel
①.
IR Extender
②. Mic
③.
Amplifier
④. USB Devices
Back Panel
①.
Mouse
②. Keyboard
③. HDMI Display
④. Amplifier
⑤. DisplayPort Display
⑥. Mic
⑦.
PC 1
⑧. PC 2
⑨. PC 3
⑩. PC 4
⑪. Power Supply

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8. POWER ADAPTER INFORMATION
Information published
Value and precision
Unit
Manufacturer’s name or trade
mark, commercial registration
number and address
Dongguan Guanjin Electronics
Technology Co.,Ltd
Block 16 Qiantou New Industrial
Park, Niushan, Dongcheng
District, 523128 Dongguan City,
Guangdong Province
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Model identifier
K25V050300G
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Input voltage
AC, 100-240V
V
Input AC frequency
50-60
Hz
Output voltage
DC, 5V
V
Output current
3
A
Output power
15
W
Average active efficiency
81.39
%
Efficiency at low load (10 %)
76
%
No-load power consumption
0.1
W
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