High Sec Labs SK21PH-4 User manual

Models:
SK21PH-4 / DK22PH-4 – Secure 2-Port DP/HDMI Video KVM Switch, PP 4.0
SK41PH/PHU-4 / DK42PH/PHU-4 – Secure 4-Port DP/HDMI Video KVM Switch, PP 4.0
DK42PHU-4T – Secure 4-Port DP/HDMI Video Dual Display KVM Switch w/fUSB, PP 4.0 Tempest
SK81PH-4 / DK82PH-4 – Secure 8-Port DP/HDMI Video KVM Switch, PP 4.0 HLT31926 Rev. 1.0
SECURE KVM SWITCHES | USER MANUAL

1
HSL Secure KVM Switches User Manual
TABLE OF CONTENTS
SECTIONS
Table of Contents 123
Introduction .......................................................... 2
HSL Secure KVM Switches .....................................................2
KVM Specifications ............................................................3
Installation............................................................ 4
Installing the KVM.............................................................4
Operation............................................................. 7
Operating the KVM............................................................7
Switch Channel Using Mouse Movements ....................................8
Interchangeable KVM-to-KM Functionality ....................................9
Keyboard shortcut options...................................................11

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HSL Secure KVM Switches User Manual
INTRODUCTION
SECTIONS
Table of Contents 2 3 1
HSL Secure KVM Switches
Simplify and secure user experience when working with multiple
computers.
Keyboard Video Mouse (KVM) switch offered by HSL allows secure
sharing of keyboard, video, mouse, audio and USB peripherals between
multiple computers while maintaining the highest isolation.
Obviate the need for purchasing and installing dedicated, per-
computer peripheral sets.
This manual instructs how to install, configure and operate a secure
HSL KVM switch.
This manual refers to the following models:
SK21PH-4 – Secure 2-Port 4K DP/HDMI Video Single Display KVM Switch, PP 4.0
DK22PH-4 – Secure 2-Port 4K DP/HDMI Video Dual Display KVM Switch, PP 4.0
SK41PH-4 – Secure 4-Port 4K DP/HDMI Video Single Display KVM Switch, PP 4.0
SK41PHU-4 – Secure 4-Port 4K DP/HDMI Video Single Display KVM Switch w/fUSB, PP 4.0
DK42PH-4 – Secure 4-Port DP/HDMI Video Dual Display KVM Switch, PP 4.0
DK42PHU-4 – Secure 4-Port DP/HDMI Video Dual Display KVM Switch w/fUSB, PP 4.0
DK42PHU-4T – Secure 4-Port DP/HDMI Video Dual Display KVM Switch w/fUSB, PP 4.0 Tempest
SK81PH-4 – Secure 8-Port DP/HDMI Video Single Display KVM Switch, PP 4.0
DK82PH-4 – Secure 8-Port DP/HDMI Video Dual Display KVM Switch, PP 4.0

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HSL Secure KVM Switches User Manual
INTRODUCTION
SECTIONS
Table of Contents 2 3 1
KVM Specifications
Part Number SK21PH-4 DK22PH-4 SK41PH/PHU-4 DK42PH/PHU-4 DK42PHU-4T SK81PH-4 DK82PH-4
No. of Sources 2244488
Console Ports
Displays 1 x DP/HDMI 2 x DP/HDMI 1 x DP/HDMI 2 x DP/HDMI 2 x DP/HDMI 1 x DP/HDMI 2 x DP/HDMI
Max Output Resolution UHD 4K resolutions up to 3840x2160 @ 60 Hz
Mouse and Keyboard USB Type A USB Type A USB Type A USB Type A USB Type A USB Type A USB Type A
Audio Jack 3.5 mm Jack 3.5 mm Jack 3.5 mm Jack 3.5 mm Jack 3.5 mm Jack 3.5 mm Jack 3.5 mm Jack
fUSB Port N/A N/A USB Type A (U) USB Type A (U) USB Type A N/A N/A
Computer Ports
Display Type 2 x DP/HDMI 2 x DP/HDMI 4 x DP/HDMI 4 x DP/HDMI 4 x DP/HDMI 8 x DP/HDMI 8 x DP/HDMI
Max Resolution UHD 4K resolutions up to 3840x2160 @ 60 Hz
Mouse and Keyboard USB Type B USB Type B USB Type B USB Type B USB Type B USB Type B USB Type B
Audio Jack 3.5 mm Jack 3.5 mm Jack 3.5 mm Jack 3.5 mm Jack 3.5 mm Jack 3.5 mm Jack 3.5 mm Jack
fUSB Port N/A N/A USB Type B (U) USB Type B (U) USB Type B N/A N/A
Physical
Dimensions 177 x 82 x 35 mm
(7 x 3.2 x 1.4 in)
177 x 92 x 50 mm
(6.9 x 3.6 x 1.9 in)
342 x 148 x 42 mm
(13.7 x 5.8 x 1.7 in)
342 x 158 x 57 mm
(13.4 x 6.2 x 2.2 in)
342 x 158 x 57 mm
(13.4 x 6.2 x 2.2 in)
440 x 192 x 48 mm
(17.3 x 7.5 x 1.9 in)
440 x 202 x 62 mm
(17.3 x 7.9 x 2.4 in)
Weight 0.52 kg (1.1 lbs) 0.64 kg (1.4 lbs) 1.6 kg (3.2 lbs) 1.95 kg (4.3 lbs) 1.95 kg (4.3 lbs) 2.6 kg (5.7 lbs) 2.9 kg (6.4 lbs)
Power
Power Requirements 12V DC, 1.5A 12V DC, 1.5A 12V DC, 1.5A 12V DC, 1.5A 12V DC, 1.5A 35W Max 35W Max
AC Input 100 to 240V AC 100 to 240V AC 100 to 240V AC 100 to 240V AC 100 to 240V AC 100 to 240V AC 100 to 240V AC
Power Type External External External External External Internal Internal
Certification
Security Compliant with NIAP Common Criteria PP4.0 for Peripheral Sharing Switch (PSS) devices, Tempest Level B Compliant (DK42PHU-4T Only)

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HSL Secure KVM Switches User Manual
INSTALLATION
SECTIONS
Table of Contents 1 3 2
Installing the KVM
General
•Verify that all peripherals and computers are turned off prior to
connecting them to the product.
•The KVM’s back panel is divided into Console Ports and Computer
Ports sections.
–Connect peripherals which are due to be shared by the KVM
to the Console ports.
–Connect each computer that requires access to the shared
peripherals to a Computer port group.
–Make sure that every computer is connected to a separate
Computer port group.
–Computer port group numbers are represented by push
buttons on the product’s front panel.
–Switch peripherals between computers by pressing the push
buttons on the product’s front panel.
Step 1 – Connect peripherals to the KVM Console ports:
•Keyboard: Connect a USB keyboard to the corresponding KVM
console keyboard port.
•Video: Connect the monitor cable to the KVM console video port.
•Mouse: Connect a USB mouse to the corresponding KVM console
mouse port.
•Audio peripherals: Connect headphones / speakers to the KVM
console audio-out port.
•USB peripherals: Connect USB peripherals to the KVM console
fUSB port.
Note: Authentication devices such as smartcard and biometric readers are
enabled by default, other devices must be explicitly whitelisted – for further
information please refer to the KVM Administrator’s guide.
CONSOLE PORTS COMPUTER/SOURCE PORTS
Smart-Card
Reader Computers
Audio Keyboard Mouse
1 2 3 4
Display
fUSB Cable
Audio Cable
Mouse Cable
Display Cable
Keyboard Cable

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HSL Secure KVM Switches User Manual
INSTALLATION
SECTIONS
Table of Contents 1 3 2
Step 2 – Connect computers to the KVM Computer ports:
•Computer keyboard & mouse connection: Connect each
computer to the KVM keyboard & mouse computer port using
a USB A to USB B cable. Connect the USB A end to the
computer and the USB B end to KVM.
•Computer video connection: Connect each
computer to the KVM computer video port using
the corresponding video cable (DP/HDMI).
•Computer audio connection: Connect each
computer to the KVM audio-in port using an
audio cable. Connect one end of the cable to
the computer’s audio-out port using the 1/8”
(3.5mm) stereo plug. Connect the other end
of the audio cable to the KVM audio-in computer
port.
•Computer USB peripherals: Connect each computer to the
KVM fUSB computer port using a USB A to USB B cable. Connect
the USB A end to the computer and the USB B end to KVM.
Note: 4 channel product illustrations shown throughout this manual are
applicable to other KVM models.
Multiple Sources
Speakers
Single
Keyboard & Mouse
Single Display
PC #4
Top Secret
SECURE
KVM SWITCH
SECURE
KVM SWITCH
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HSL Secure KVM Switches User Manual
INSTALLATION
SECTIONS
Table of Contents 1 3 2
Step 3 – Power ON your system:
•Power ON the monitor: Make sure that the monitor is turned ON
prior to powering ON the KVM.
•Power ON the system: Connect all peripherals and computers to
the KVM prior to powering it up. Power ON the KVM by plugging it
to the AC wall outlet. By default, after product power-up, the active
channel will be computer #1, indicated by the applicable front panel
push button LED lit.
Note: Power ON self-test: As the product powers-up it performs a self-test
procedure. In case of self- test failure for any reason, including jammed buttons,
the product will be Inoperable. Self-test failure will be indicated by abnormal LED
behavior – for further information please refer to the KVM setup guide.
Step 4 – Reset to Factory Defaults
Reset to factory defaults clears the device settings and restores the
device to its original configuration.
•System reset, clears behavioral characteristics such as mouse
settings and display presets. Type { L CTRL | L CTRL | F11| r } key
combination.
•Complete reset: clears all device settings and resets to factory
defaults. From the Terminal menu select the “Reset to Factory
Defaults” option (refer to terminal mode guide).
Important Notes:
1. Always use the left control key (CTRL) unless otherwise specified.
2. Keyboard shortcut keys are to be pressed sequentially
3. Do not use the numeric keypad for toggling shortcuts unless otherwise
specified.
4. ALL KEYBOARD SHORTCUTS REFER TO QWERTY KEYBOARDS. In case a non-
qwerty keyboard is in use, keep using the QWERTY layout.
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HSL Secure KVM Switches User Manual
OPERATION
SECTIONS
Table of Contents 123
Operating the KVM
Front Panel Push-Buttons
•Following power up, the default channel is #1.
•Select any other channel by pressing the appropriate front panel
push button.
•The mouse cursor will be positioned at the center of the selected
computer display.
•The currently selected channel is indicated by the illumination of
the appropriate push-button.
Filtered USB Port (fUSB) Operation
•This product is equipped with a fUSB port which by default
accepts only USB authentication devices (smart card / biometric
readers).
•When a legitimate USB device is connected to the fUSB console
port the fUSB status LED on the front panel is illuminated with
steady GREEN.
•When a non-legitimate USB device is connected to the fUSB
console port the fUSB status LED on the front panel is illuminated
with steady RED.
•Once switching between channels, for example from channel #1
to channel #3, the USB device which is connected to the fUSB port
is automatically switched accordingly. This is indicated by channel
#3 fUSB LED turning steady GREEN.
•When switching to a channel that has no USB fUSB connection,
the fUSB Port remains mapped to the last channel that had a fUSB
connection.
•Press the freeze USB button on the front panel to assign the fUSB
port to a specific computer. Freeze USB prevents switching the
fUSB port while the keyboard, video, mouse and audio peripherals
are switched between computers. Freeze USB is useful for various
scenarios, for instance, when a USB smart card reader must
remain mapped to a certain computer.

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HSL Secure KVM Switches User Manual
OPERATION
SECTIONS
Table of Contents 123
Switch Channel Using Mouse Movements
HSL secure KVMs are capable of receiving channel switching command
via mouse movements.
To enable Video Follow mouse option:
•Change the mouse mode to Absolute by typing L CTRL | L CTRL
| F11 | c
•Enable Video Follow Mouse by typing L CTRL | L CTRL | f
Switching from channel 1 to channel 2 will be done by moving the
mouse right
To deactivate VDT mode:
•Change the mouse mode to Relative by typing L CTRL | L CTRL
| F11 | b
•Disable Video Follow Mouse by typing L CTRL | L CTRL | f
Notes:
•VDT is disabled by default. Resetting the product to factory defaults,
disables VDT.
•Multi-monitor computers require driver installation, currently available
only for Windows (https://highseclabs.com/downloads/km-multi-
display-drivers/).

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HSL Secure KVM Switches User Manual
OPERATION
SECTIONS
Table of Contents 123
Interchangeable KVM-to-KM Functionality
•In KVM mode (default) one display, keyboard, mouse, USB and
audio peripheral set is shared between all computers.
•In KM mode each computer is connected to a separate display
while keyboard and mouse are shared.
To change from KVM to KM mode:
•Disconnect the Display from the KVM Console Port.
•Connect each computer directly to a separate display while
keeping the keyboard, mouse, USB and audio peripherals
connected to the KVM.
•Change the mouse mode to Absolute by typing L CTRL | L CTRL
| F11 | c
Keyboard
Audio
Computers
Mouse
Display
Secure KVM Switch
Keyboard
Secure KM Switch
Audio
Computers
Mouse
Displays

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HSL Secure KVM Switches User Manual
OPERATION
SECTIONS
Table of Contents 123
Switch between computers in KM mode:
•Press the front panel buttons to manually switch control from one
computer to another.
•Use cursor navigation switching (VDT) to automatically switch
between computers by dragging the mouse cursor over the
computer’s display border. Once the mouse is passing the display
border, shared peripherals (Keyboard, Audio, USB) switch to the
next computer without having to press any buttons.
PC #1 PC #2
Screen border
Mouse cursor movement path
To change from KM to KVM mode:
•Connect a Display to the KVM Console Port.
•Connect each computer to its corresponding KVM Computer
Video Port.
•Change the mouse mode to Relative by typing L CTRL | L CTRL
| F11 | b
Note: Resetting the product to factory defaults, disables the KM mode.

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HSL Secure KVM Switches User Manual
OPERATION
SECTIONS
Table of Contents 123
Keyboard shortcut options
#Action Description Keyboard
1 Toggle between mouse modes (Absolute) - L CTRL | L CTRL | F11 | c
(Relative) - L CTRL | L CTRL | F11 | b
2 System Reset to factory defaults L CTRL | L CTRL | F11 | r
3Enter Terminal-Mode L CTRL | R CTRL | t
4 Video Follow Mouse (toggle ON/OFF)* L CTRL | L CTRL | f
* (Use in conjunction with Absolute mouse mode to switch sources by moving the mouse
accross the display border - in KVM mode)

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