Digitus DS-12891 User manual

KVM SWITCH,
4x1 DP, DP OUT, USB
User Manual
DS-12891

2
User consideration
The manufacturer has the right to modify and change the information, documents
and specifications contained in the manual without prior notice. The manufacturer
does not warrant, express, imply or statutorily declare its contents or specifically
disclaims its merchantability and fitness for a particular purpose. Any of the
manufacturer's software described in this manual that is sold and licensed. If the
software program is found to be defective after purchase, the purchaser (and non-
manufacturer, its distributor or its purchaser) will be responsible for all necessary
services, repairs and any accidental or consequential damages caused by the
software.
The manufacturer is not responsible for any unauthorized adjustments to the radio
and / or television interference caused by this equipment, and the user must correct
the interference.
If the operating voltage setting is not correctly selected before operation, the
manufacturer will not be liable for any damage caused.
Be sure to confirm that the voltage is set correctly before use. This product does
not have a power supply. If the power supply is required in a special environment,
the customer can configure it according to the product power interface (power
supply socket specification 5.5 mm x 2.1 mm) and the power socket printing
parameters.
Package Contents
The multi-computer KVM switch package includes the following:
•1 x Pc Host KVM switch,
•4 x sets of custom KVM connection cables
•1 x user manual
Check that all parts are in place and that they are not damaged in transit. If you
encounter problems, please contact your dealer.
To prevent damage to the machine or equipment connected to the machine, please
read this manual carefully and follow the instructions for installation and operation.
∗Since the publication of this manual, there may be new product features. Please
visit our website to download the latest version of the user manual.

3
Contents
About manual........................................................................................................4
Product information ..............................................................................................4
CHAPTER 1................................................................................................................5
INTRODUCTION ..............................................................................................................5
Product description ...............................................................................................5
Product features....................................................................................................5
Operating system ..................................................................................................6
CHAPTER 2................................................................................................................8
HARDWARE INSTALLATION................................................................................................8
Cable connection and installation .........................................................................8
CHAPTER 3................................................................................................................9
BASIC OPERATION...........................................................................................................9
Overview ...............................................................................................................9
Manual switching method ....................................................................................9
Hotkey switching method......................................................................................9
Power off and restart ............................................................................................9
CHAPTER 4..............................................................................................................10
KEYBOARD OPERATION ..................................................................................................10
Overview .............................................................................................................10
Hotkey setting: ....................................................................................................10
APPENDIX...............................................................................................................13
SAFETY INSTRUCTIONS...................................................................................................13
General................................................................................................................13
PRODUCT SPECIFICATION................................................................................................15

4
About manual
This User Manual will assist you in the effective use of product features, including the
installation, setup, and operation of your equipment. You can find out what is
included in this manual from the following:
Chapter 1 Introduction - This chapter describes the rack-mounted KVM device
system, including its functions, features, and benefits, and describes and describes its
front and rear panel components.
Chapter 2 Hardware installation - This section explains how to install this product.
Chapter 3 Basic operation - Explain the basic operational concept of the KVM switch.
Chapter 4 Keyboard Port Operation - Describes the keyboard's hotkey combination
operations and settings.
Appendix - Mainly provide specifications and other technical information about
the relevant KVM switch.
Common terms:
The symbol Indicates the text information that should be entered.
[ ] The keys that need to be entered are indicated in parentheses.
For example , [ Enter ] Indicates that the Enter key is pressed. For keys that need to
be entered at the same time, they are placed in the same parenthesis, and the keys
are connected by a plus sign. For example: [ Ctrl ]
1. The number indicates the actual sequence number of the operation steps.
A diamond symbol indicates that information is provided for reference, but is
not related to the operational steps.
The origin symbol indicates the classification sub-item information, regardless
of the operation steps.
Product information
To find out more about our KVM product information and how to use it more
efficiently, you can go to our website or contact an authorized reseller for more
contact information.

5
Chapter 1
Introduction
Product description
As a KVM switch, 4 port desktop KVM Series Switcher allows users to access from a
single USB keyboard, mouse and DISPLAYPORT display console
accesses 4 computers. As per built in USB hub, it allows each
computer (one computer at a time) to access the connected peripherals.
Switcher installation is quick and easy, just plug the cable into the correct port. No
software settings are required, no installation procedures and no compatibility
issues. Desktop compact design, metal casing, easy to install and place to provide a
variety of video interface options, to provide users with a variety of fast switching
options for audio, video, USB devices, saving desktop space, is a multimedia
application such as SOHO office Ideal.
Product features
4 port USB multiple video series KVM switch
Single USB controls 4 of computers and peripherals USB (low speed)
Built-in USB2.0 hub, compatible with USB2.0 protocol specification
DisplayPort® video maximum support resolution is 4K@60fp
Provide keyboard hotkey switching shortcut function and device panel button
two switching function selection
Support multiple platforms for various operating systems
BIOS level hardware connection, no need to install drivers and control software
The front panel of the device is extended with a USB interface, which is
convenient for users to connect peripheral devices such as a USB keyboard, a
mouse, or a USB flash drive or a USB printer.
Provide a variety of hotkey selection and setting functions, so that users can set
their own hotkeys according to the situation.
Automatically scans the connected computer.

6
Operating system
Operating systems supported by remote users' computers include: Windows
XP and above
The operating systems supported by the server connected to the switch are
shown in the following table:
Operating system
Version
Windows
Windows XP/ 7/ 9/ 10 /11 or higher
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 higher
Sun Solaris
8 or higher
Mac
OS 9.0 to 10.6 (Snow Leopard)
Novell
Netware
6.0 or higher

7
Components
Front view
Rear view
①.
Power Indicator
②. Front USB interface, you can
connect mouse and keyboard,
U disk storage device and printer.
③.
Switch Button
④.
Power 9V DC=, optional
⑤. Local USB keyboard and
mouse input interface
⑥. For DisplayPort® video interface
(Output)
⑦. For DisplayPort® video interface
(Input)
⑧. Output interface for local MIC
⑨. Local audio output interface
⑩. For the computerside B type
USB connection interface
⑪. For the integrated audio and MIC
interface, connect to KVM cable

8
Chapter 2
Hardware installation
Cable connection and installation
KVM switches can be placed on any suitable surface, and is sufficient to safely
support the weight of the device plus the additional cable; clean and make sure that
no other plane debris would affect the switch ventilation and normal operation.
To install For a 4 port desktop KVM device, follow these steps:
1. Plug the USB keyboard and USB mouse into the USB console port on the rear
panel of the device.
2. Plug DISPLAYPORT display into the console video port on the rear panel of the
device.
3. If you use a separate speaker and microphone, plug it into the console analog
audio port on the rear panel of the device.
4. With a custom KVM cable set, The KVM cable connector and the
included USB connector are plugged into the corresponding jacks on the rear
panel of the switch.
5. Put the other end of the cable, video and plug the USB cable into the
corresponding USB and graphics video interface on your computer.
6. Insert the USB peripheral into the Type A jack (one on the front panel;
the other two on the rear panel)
7. Turn on the monitor.
8. KVM is powered by computer USB port. To turn on computer to activate
KVM switch. (For external power supply, which is optional.
Please use DC 9V power supply)
9. Turn on your computer

9
Chapter 3
Basic operation
Overview
There are two ways for the KVM switch to access the connected computer: the
combination hotkey on the USB keyboard to switch operations or the manual switch
operation on the front of the KVM device.
Manual switching method
The user only needs to press the corresponding touch button on the front panel
of the KVM , and the buzzer will sound a tone indicating that the switch port is
successful, and the USB , audio and video signals of the corresponding port will be
switched to the corresponding port on the local port.
Hotkey switching method
Users can use the keyboard connected to the USB interface on the KVM device
to perform hotkey operation. For details, please refer to the detailed description in
the following sections.
Power off and restart
If it is necessary to turn off the power to the device, before turning the device back
on, you must do the following:
1. Unplug the data cable from all the computers connected to the switch.
2. Unplug the power adapter cable from the switch if there is.
3. Wait 10 seconds, if there is power, plug the power adapter cable back into
the switch.
4. Then connect the computer data cable and turn on the computer.

10
Chapter 4
Keyboard operation
Overview
The KVM product in this desktop series offers a large number of easy hotkey
operations, making it easy to set up KVM via the keyboard or to complete port
switching.
Hotkey setting:
This series of products provides 4 combinations of hotkeys for user selection and
setting. The default hotkey is “LEFT” [ CTL ] [ CTL ] to switch to the next online port,
[ CTL ] + [ SHIFT ] [ 1 ] or [ 2 ] or [ 3 ] or [ 4 ] Switch to the specified port. The
following table is a description of the four hotkey combinations, please check the
settings when using the user:
1. [ CTL ] + [ SHIFT ] mode
Hotkey combination
Description
[
CTL] [ CTL]
Press twice to switch to the next device
online port
[
CTL ] + [ SHIFT ] [ 1 ] or [ 2 ] or [ 3 ] or [ 4 ]
Switch to the computer corresponding
to the port of [ 1 ] [ 2 ] [ 3 ] [ 4 ]
[ CTL ] + [ SHIFT ] [ →] or [ ↓ ]
Switch to the next computer
[ CTL ] + [ SHIFT ] [ ←] or [ ↑ ]
Switch to the previous computer
[ CTL ] + [ SHIFT ] [ B ]
Buzzer on or off
[
CTL ] + [ SHIFT ] [ S ]
Automatic switching mode, the default
is 5seconds, press [ ESC ] to exit
[
CTL ] + [ SHIFT ] [ S ] [ N ]
Set the automatic switching mode
interval, press [ ESC ] to exit
[
CTL ] + [ SHIFT ] [ SCROLL ]
Switch to [ SCROLL ] + [ SCROLL ]
hotkey combination mode
[
CTL ] + [ SHIFT ] [NUM ]
Switch to [ NUM ] + [ NUM ] hotkey
combination mode
[
CTL ] + [ SHIFT ] [ CAPS ]
Switch to [ CAPS ] + [ CAPS ] hotkey
combination mode