Digitus DS-12901 User manual

KVM Switch, 2 Port, 4K30Hz,
USB-C/USB/HDMI in, HDMI out, Network
Quick Installation Guide
DS-12901

2
User Considerations
The manufacturer has the right to modify and change the information, documents
and specification tables contained in the manual without prior notice. The
manufacturer will not warrant, express, imply or legally declare its contents or
specifically deny its marketability and applicability for special purposes. The same
applies to any sold and licensed manufacturer's software described in this manual.
If any defects in the software program are found after purchase, the Purchaser will
be required to bear all necessary services, maintenance costs and any accidental or
indirect damages caused by the software defects.
The manufacturer is not responsible for any radio and/or television interference
caused by unauthorized adjustment of this equipment, and the user must correct the
interference himself.
If the operating voltage setting is not correctly selected before operation, the
manufacturer will not be responsible for any damage caused.
Make sure that the voltage is set correctly before use.
Please read this guide carefully before the first use and keep it for future
reference. The safety precautions contained here reduce the risk of fires, electrical
shock and injuries when followed correctly.

3
Regarding this Manual
This user manual would assist you to effectively use product functions, including
device installation, setting and operation procedures. For a better understanding of
the contents of this manual see the following:
Chapter 1 Introduction
Introduces the rack KVM device system, including its functions, features and
advantages, and describe and introduce its front and rear panel components.
Chapter 2 Hardware Installation
Explains how to install this product.
Chapter 3 Basic Operation
Explains the basic operation concept of KVM switcher.
Appendix
Provides specification table and other technical information related to KVM switches.
Explanation of Common Terms
Symbols
Explanation
[ ]
The brackets indicate the key you want to enter. For example, [Enter]
means that the Enter key is pressed. For keys that need to be entered
at the same time, they are placed in the same brackets, and the keys
are connected by plus signs. For example: [Ctrl]
1.
Indicates the serial number of the actual operation step
◆
Indicate that information is provided for reference, but are
independent of the operation steps
•
The bullet character represents the classification sub-item information
and is independent of the operation step

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Table of Contents
Chapter 1 Introduction.............................................................................. 5
Product Introduction..................................................................................... 5
Main Features ............................................................................................... 5
Package Contents.......................................................................................... 6
Technical Data............................................................................................... 6
Operating System.......................................................................................... 7
Components.................................................................................................. 8
Front view ..................................................................................................... 8
Rear View ...................................................................................................... 9
Chapter 2 Hardware Installation................................................................ 9
Connection and Installation of Cables .......................................................... 9
Chapter 3 Basic Operations ..................................................................... 10
Introduction ................................................................................................ 10
Manual Switch............................................................................................. 10
Keyboard Hot Key Switching....................................................................... 11
Power supply for Device ............................................................................. 11
Appendix ................................................................................................ 12
Safety Instructions ...................................................................................... 12
General........................................................................................................ 12
Warranty Conditions................................................................................... 13
Product Specification Parameters............................................................... 14

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Chapter 1 Introduction
Product Introduction
The DIGITUS® 2-port KVM switch with USB-C™ and network connectivity gives you
the ability to control two 4K-capable PCs from a single USB keyboard and mouse.
Conveniently switch between the two PCs at the touch of a button, eliminating the
need to reconnect all cables. The Gigabit network port provides convenient access to
the network via the additional USB-C™ port. The output to a monitor is done via the
integrated HDMI output. Audio signals from the microphone and speakers can also
be switched. In addition, another USB-C™ port and two USB A (2.0) ports are
available on the front, which can be used for further peripherals such as USB sticks or
external hard drives. Status LEDs on the front of the switch show you the current
status at all times. The slim switch is rounded off by the robust metal housing.
Main Features
Use one monitor, mouse and keyboard to operate two computers
Support 1x USB-C™ notebook computer (incl. Macbook)
Provide LAN connection to USB-C™ notebook computer via USB-C™ cable
Support Power Charging to USB-C™ notebook computer via USB-C™
(Power adapter is not included)
Provide 1xUSB3.0 USB Type-C™ hub to USB-C™ notebook computer
Support HDMI 4K / 30Hz display
Integrated USB hub with 2 x USB 2.0 ports for peripheral devices
KVM powered via USB bus power or external USB-C power input (optional)
Switching 2 ports via push button or Hotkey
Plug and Play - no drivers necessary

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Package Contents
The DS-12901 switch package includes the following contents:
1 x KVM-Switch, 2-Port, HDM, USB-C™
1 x QIG
1 x KVM Cables 1.2m
1 x USB-C™ Cable 0.5m
Check and make sure that all parts are present and not damaged in transit.
If you encounter problems, please contact your distributor.
In order to prevent damage to the machine or the device connected to the machine,
please read this manual carefully and follow the instructions for installation and
operation.
Technical Data
Inputs: 1 x HDMI computer, 1x USB-C™ computer, 1 x Gigabit network (RJ45),
2 x USB A (keyboard, mouse), 1x USB-C™ power (optional)
Output: 1 x HDMI video
Additional connections on the front: 2 x USB A 2.0, 1 x audio input, 1 x audio
output, 1 x USB-C™ (for USB-C™ computer only)
Provide LAN connection to USB-C™ notebook computer via USB-C™ cable
Audio in/out: 3.5 mm audio jacks
LED status indicator on front: 2 x, shows active computer
Switch: Switching PC1 / PC2
HDMI® version: 1.4
HDCP version: 1.4/2.2
UHD resolution: 3840 x 2160p / 30 Hz
Subsampling: YCbCr 4:4:4/ YCbCr 4:2:2/ YCbCr 4:2:0
Bandwidth HDMI: 10.2 Gbps all channels (3.4 Gbps per channel)
Color depth HDMI®: 24/36 bit (all channels).
Power supply via USB-C™ port on the rear panel (Optional)
USB-C Power delivery: 20 V / 5 A / 100 W max.
Operating temperature: 0°C ~ 50°C
Storage temperature: -20°C ~ 60°C
Operating humidity: 0% - 80% RH (non-condensing)

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Operating System
Operating systems supported by remote users' computers include Windows XP
and above
The operating systems supported by the server connected to the switcher are
shown in the following table:
Operating System
Version
Windows
Windows 2000/XP/2003/2008/Vista/7/10/11
Linux
RedHat
9.0 or higher
SuSE
10/11. 1 or higher
Debian
3.1/4.0
Ubuntu
7.04/7.10
UNIX
AIX
4.3 or higher
FreeBSD
5.5 or high
Sun Solaris
8 or high
Mac
OS 9.0 to 10.6 (Snow Leopard)
Novell
Netware
6.0 or high

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Components
Front view
1
Switch button
2
Status indicator
LEDs for status indication
3
Audio connection
Pink: Output interface for the local MIC
Green: Local audio output interface
4
USB 2.0 Type A
Peripherals that are local USB2.0 expansion ports
and can connect to the corresponding USB 2.0
interface
5
USB Type-C™
USB Peripheral port for USB Type-C™ Notebook PC
(Note: Do not connect to power charging adapter)

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Rear View
1
USB Type-C™
USB Type-C™ power input (Power Only)
2
USB 2.0 Type B
The USB connection interface for that compute side
3
HDMI
HDMI Video Interface for monitor
4
USB Type-C™
Connecting port for USB USB Type-C™ Notebook PC
(Note: Do not connect to power charging adapter)
5
RJ45
Network connection
6
USB 2.0 Type A
Mouse input interface for local USB keyboard
Chapter 2 Hardware Installation
Connection and Installation of Cables
The KVM switch can be placed on any suitable plane and is sufficient to safely
support the device with the weight of additional connecting wires. Please make sure
that the plane is clean and there are no other sundries that will affect the ventilation
and normal operation of the switch.

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To install a 2-port desktop KVM device, follow these steps:
1. Insert the USB keyboard and USB mouse into the USB control port on the back
panel of the device.
2. Connection HDMI display cable into the video output port on the rear panel of
the device.
3. If you use a separate speaker and microphone, plug it into the control side analog
signal audio port on the front panel of the device.
4. Connect the HDMI Computer with KVM cable (HDMI and USB)
5. USB USB TYPE-C™ notebook computer is connected to the rear panel of the KVM
with corresponding connection cable included.
6. Connection an extra USB power. (This is Optional, Power adapter is NOT
included) If connecting an extra USB Type-C™ power to KVM. It is not only
provide KVM power, KVM can also power charging Notebook PC.
7. Turn on the monitor.
8. Turn on the computer.
9. KVM can obtain the power for the device to work through USB or TYPEC interface
connected to the computer. After the device is powered, only the lights on the
front panel are lit accordingly. The default port is the notebook computer port
connected to USB TYPE-C™, and the red indicator light is lit.
10. The user can select the port from SWITCH button or press keyboard hotkey:
Left [shift] + Right [shift]
Chapter 3 Basic Operations
Introduction
There are two ways to access the computers: the combined hot key on the keyboard
or Push button in front of the KVM switch
Manual Switch
The user only needs to press the button on the KVM front panel, and the buzzer will
send out a prompt tone to indicate that the switch port action is successful, and the
USB, audio and video signals of the corresponding port will be switched to the local
corresponding port.

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Keyboard Hot Key Switching
Port Switch Operation: Left [shift] + Right [shift]
Operation Instructions:
1. After the device is powered on, the default port is USB Type-C™ notebook
computer connection port, and the red indicator light on the panel is lit.
2. Hotkey operation is performed once, and the port is changed once, thus
circulating.
3. If the connected peripherals are printers, mobile hard disks… etc., please do not
switch ports during data transmission, otherwise data transmission errors may
occur.
Power supply for Device
There are three power supply modes for this KVM switch product:
1. The user can choose an adapter power supply conforming to USB Type-C™ PD
standard to connect the device and provide the power needed for operation.
2. Users can choose the USB interface of the PC and use the USB of the PC to
provide the power required by the device.
3. If the USB USB TYPE-C™ interface of the user's notebook computer can provide
power output function, it can also provide power supply for the device through
USB Type-C™.
Note: The external TYPEC interface of this product can provide power output for
downlink connection device. The application of this mode needs to ensure
that the device has a power adapter matching the corresponding power
supply. The TYPEC power adapter supports a power supply capacity of up to
100W W. For example, users only need simple applications, and can provide
power through USB of PC or TYPEC of notebook computer. Users use the
application mode of power mismatch, which may cause the device to work
abnormally or not. Please check whether the application of the device needs
to add additional power adapters before using.

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Appendix
Safety Instructions
General
This product is for indoor use only.
Please read all the instructions and use them for future reference.
Follow all warnings and instructions on the equipment.
Do not place this equipment on any unstable plane (such as carts, shelves, tables,
etc.). If this equipment falls, it will be seriously damaged.
Do not use this equipment near water.
Do not place this equipment next to or above the radiator or heating equipment.
The enclosure of this equipment is equipped with slots for heat dissipation and
ventilation. In order to prevent overheating during operation, do not block or
cover the openings.
This equipment should not be placed on a soft surface (such as bed, sofa, blanket,
etc.), which will block the fan opening, nor should it be placed in a sealed
environment unless proper ventilation has been provided.
Do not spill any liquid on the equipment.
Before cleaning, the power supply of this equipment must be unplugged from the
socket on the wall. Please do not use any liquid or foam wiping agent, please use
wet cloth for cleaning.
Please use this equipment according to the power type on the label. If you are
not sure whether the power type is available, please contact your distributor or
local power company.
This equipment is designed and applied to IT power distribution system with 100V
~ 230V phase-to-phase voltage.
In order to prevent damage to your equipment, it is very important for all
equipment to be properly grounded.
Do not place anything on the power cord or connection line and arrange the
wiring path of the power cord and connection line to avoid tripping over it.
If the equipment uses an extension line, ensure that the total power of all
products using the line does not exceed the current carrying capacity of the line.
Ensure that the total current of all products plugged into wall sockets does not
exceed 15A.

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Please select equipment such as sudden wave suppressor, regulator or
uninterruptible power system (UPS) to help prevent your system from
experiencing sudden and instantaneous increase and decrease of power.
Please properly fix the connecting wire and power cord of the system to ensure
that nothing presses on the cable.
Do not insert anything into the machine through the slots in the housing, which
may come into contact with dangerous voltage points or cause short circuit of
parts and lead to the risk of fire or electric shock.
Please do not try to repair this equipment by yourself, please find qualified
service personnel to obtain support services.
If any of the following circumstances occur, please unplug the power supply of
this equipment from the wall socket and hand it over to qualified service
personnel for repair.
•Damaged or worn power cord or plug
•Liquid is sprinkled into the equipment
•The equipment was drenched by rain and water
•The equipment has fallen or the enclosure has been damaged
•The functions of this equipment have obviously changed
•After following the operation instructions, the equipment cannot operate
normally
Only the control functions covered in the operation instructions are adjusted, and
other improper operations may cause damage, so that more extensive operations
by qualified personnel are required to repair.
Warranty Conditions
The maximum compensation borne by the Company shall not exceed the amount
paid by the customer for the product. In addition, the Company does not bear the
direct, indirect, special, accidental or consequential damages caused by the use of
this product or the CD and documents attached to this product.
The Company will not warrant, express, imply or legally declare the contents and
purposes of this document, and specifically deny its quality, performance,
marketability or applicability for special purposes.
Distributors reserve the right to modify or upgrade equipment or documents and are
not obliged to notify any individual or individual of the contents of the modification
or upgrade. For further enquiries, please contact the distributor.

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Product Specification Parameters
Model
DS-12901
Port Selection
Button & Hotkeys
Connector
Console
Port
Display
1 x HDMI female
Keyboard
1 x USB Type A female
Mouse
1 x USB Type A female
Controlled
end port
PC graphics card
1 x HDMI female
PC keyboard
mouse
1 x USB Type B female
Notebook
1 x USB Type-C™ female
Power Supply (Optional)
1 x USB Type-C™ female
Audio
2 x 3.5 mm TRS mother
seat
USB2.0 Peripheral
2 x USB Type A female
10/100/1000Mbps LAN port
(for Notebook PC)
1 x RJ45 (LED)
USB3.0 USB TYPE-C™ Peripheral
(for Notebook PC)
1 x USB 3.0 USB Type-C™
female (front)
Toggle switch
Port Switch Key
1 x Push button
Hotkey switch
Port Switch Key
Left [Shift]+Right [Shift]
LED indicator
Computer Select Port
2 x LED
IP Network Port
1 x green, 1 x yellow
Analog mode
Keyboard and mouse
USB 2.0
Maximum Resolution Video
3840×2160 @ 30Hz
Switch Response Time
0.2 s
Operating
environment
Operating temperature
0-50 ℃
Storage Temperature
-20-60 ℃
Humidity
0-80% RH, non condensing
Body Attribute
Chassis
Metals
Dimensions
150 x 88 x 26 mm
Weight
400g

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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