I/O Interconnect SV141D0 User manual

User Manual
1. SV141D0–I/O 4 Port Single DVI 4K video Secure KVM without CAC PP3.0
2. SV141D1–I/O 4 Port Single DVI 4K video Secure KVM with CAC PP3.0
3. SV241D0–I/O 4 Port Dual DVI 4K video Secure KVM without CAC PP3.0
4. SV241D1–I/O 4 Port Dual DVI 4K video Secure KVM with CAC PP3.0
5. SV121D0–I/O 2 port Single DVI 4K video Secure KVM without CAC PP3.0
6. SV121D1–I/O 2 port Single DVI 4K video Secure KVM with CAC PP3.0
DVI 4K Video Secure KVM Switch

Ioint® Secure DVI 4K KVM Switch User Manual
Table of Contents
Introduction ........................................................................................................2
Package Contents .................................................................................2
˙Item Sold Separately .............................................................................2
Safety Precautions ................................................................................3
User Guidance & Precautions ...............................................................4
Overview .............................................................................................................5
Security Features ..................................................................................5
Tamper Evident Labels .........................................................................5
Other Features ......................................................................................6
˙Equipment Requirements ......................................................................7
˙System Requirements ...........................................................................8
˙Unit Display Diagrams ..........................................................................10
˙Specifications .......................................................................................13
Installation ........................................................................................................14
˙Pre-Configuration ................................................................................14
˙Connection and Installation .................................................................14
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Color Code Label Installation ..............................................................15
Operating the KVM Switch ..............................................................................16
Common Access Card (CAC) Configuration and Operation........................17
Troubleshooting .................................. ...........................................................18
Information .......................................................................................................21

Ioint® Secure DVI 4K KVM Switch User Manual ʹ
Introduction
Thank you for purchasing this Interconnect (I/O) DVI 4K video secure KVM switch. This Switch is designed for use in secure environment
installations. The Switch offers safe centralized control, which prevents unintended data transfer between computers running at different security
levels. The Switch provides the highest security safeguards and features that meet today’s Information Assurance (IA) computing requirements.
I/O DVI 4K video secure KVM switch is especially challenging in terms of security as DVI 4K video secure KVM switch is a very robust protocol by
nature. I/O has developed this unique Secure KVM switch with the highest possible security in mind, assuring no leakage of information between
connected computers through any channels including DVI secure KVM switch dedicated channels.
This user manual provides all the details you’ll need to install and operate your new Switch, in addition to expert troubleshooting advice—in the
unlikely event of a problem. 2 port secure KVM switches share the same specification with the 4 ports only difference being having 2 - hosts,
selections and in place of four.
Package Contents
2/4-Port Single / Dual DVI Secure KVM Switch
AC input: 90~264 V AC, 12V 1.5A DC Power Adapter Output
Color Label Sheet
USB Cable (CAC version), 6 ft (SV141D1, SV121D1, SV241D1)
User Manual
Rubber Foot
Items Sold Separately
DVI-DVI Cable with USB and Audio 6ft
Desktop Control Unit (DCU)
Card Reader (SV141D1, SV121D1, SV241D1 )
Important:
This product is equipped with an always-on active anti-tamper system. Any attempt to open the enclosure may activate the tamper-evident seals
for visually detecting tampering and render the unit permanently inoperable. If the unit’s enclosure appears to be disrupted or all the LED ports
flash continuously, please call I/O Technical Support toll-free at (1 [phone]).
Reporting I/O Product Security Vulnerability
If you are aware of potential security vulnerability while installing or operating this product, we encourage you to contact us immediately at the
following email address: t[email protected] .
Please note: I/O Secure KVM Switch cannot be upgraded, serviced or fixed.
Introduction

Ioint® Secure DVI 4K KVM Switch User Manual ͵
Safety Precautions
Please read the following safety precautions carefully before using the product:
Before cleaning, disconnect the product from any electrical power supply.
Do not expose the product to excessive humidity or moisture.
Do not store or use for extensive period of time in extreme thermal conditions –it may shorten product lifetime.
Install the product only on a clean secure surface.
If the product is not used for a long period of time, disconnect it from electrical power.
If any of the following situations occurs, have the product checked by a qualified service technician:
oLiquid penetrates the product’s case.
oThe product is exposed to excessive moisture, water or any other liquid.
oThe product is not working well even after carefully following the instructions in this user’s manual.
oThe product has been dropped or is physically damaged. The product shows obvious signs of breakage or loose internal parts.
oIn case of external power supply –If power supply overheats, is broken or damaged, or has a damaged cable.
The product should be stored and used only in temperature and humidity controlled environments as defined in the product’s environmental
specifications.
Never attempt to open the product enclosure. Any attempt to open the enclosure will permanently damage the product.
The product contains a non-replaceable internal battery. Never attempt to replace the battery or open the enclosure.
This product is equipped with an always-on active anti-tampering system. Any attempt to open the product enclosure will activate the anti-
tamper triggers and render the unit inoperable and warranty void.

Ioint® Secure DVI 4K KVM Switch User Manual Ͷ
User Guidance & Precautions
Please read the following User Guidance & Precautions carefully before using the product:
1. As 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 the following abnormal LED behavior:
a. All channel-select LEDs will be turned ON and then OFF;
b. A specific, predefined LED combination will be turned ON;
c. The predefined LED combination will indicate the problem type (jammed buttons, firmware integrity).
Try to power cycle product. If problem persists please contact your system administrator or technical support.
2. By default, after product power-up, the active channel is #1.
3. The appropriate usage of peripherals (e.g. keyboard, mouse, display, authentication device) is described in detail in this User Manual’s
appropriate sections. Do not connect any authentication device with an external power source to product.
4. For security reasons products do not support wireless keyboards and mice. In any case do not connect wireless keyboard/mouse to product.
5. For security reasons products do not support microphone/line-in audio input. In any case do not connect a microphone to product audio output
port, including headsets.
6. Product is equipped with an always-on active anti-tampering system. Any attempt to open product enclosure will activate the anti-tamper
system indicated by all channel-select LEDs flashing continuously. In this case, product will be inoperable and warranty void. If product
enclosure appears disrupted or if all channel- select LEDs flash continuously, please remove product from service immediately and contact
technical support.
7. Connecting external USB devices to product CAC port:
a. When connecting a USB device that is not qualified or rejected for security reasons to product’s CAC port, the CAC LED will not turn ON
and USB device will be inoperable.
b. When connecting a USB device that is undetectable for any reason (e.g. failed device, non-standard device etc.) to product’s CAC port,
the CAC LED will not illuminate at all and device will be inoperable.
8. Do not connect product to computing devices:
a. That includes telecommunication equipment;
b. That includes frame grabber video cards;
c. That includes special audio processing cards.
9. Product has a remote control port in the back panel labeled DCU. This Port is for I/O DCU Only.
10. Important! Before re-allocating computers to channels, it is mandatory to power cycle product, keeping it powered OFF for more than 1 minute.
11. Product log access and administrator configuration options are described in product Administrator Guide.
12. If you are aware of any potential security vulnerability while installing or operating product, please remove product from service immediately
and contact us in one of the ways listed in this manual.

Ioint® Secure DVI 4K KVM Switch User Manual ͷ
Overview
Security Features
Product is designed, manufactured and delivered in security-controlled environments. Below is a summary of the main advanced features
incorporated in product:
Advanced isolation between computers and shared peripherals:
The emulations of keyboard, mouse and display EDID, prevent direct contact between computers and shared peripherals. Product design
achieves maximal security by keeping the video path separate with keyboard and mouse switched together, purging keyboard buffer when
switching channels. All these features contribute to strong isolation between computer interfaces, maintained even when product is powered off.
Unidirectional data flow: USB, audio and video:
Unique hardware architecture components prevent unauthorized data flow, including:
Optical unidirectional data flow diodes in the USB data path that filtrate and reject unqualified USB devices;
Secure analog audio diodes that prevent audio eavesdropping with no support for microphone or any other audio-input device;
Video path is kept separate from all other traffic, enforcing unidirectional native video flow. EDID emulation is done at power up and blocks
all EDID/MCCS writes.
Isolation of power domains:
Complete isolation of power domains prevents signaling attacks.
Always-on, active anti-tamper system:
Active anti-tampering system prevents hardware implants and wireless key-loggers. Any anti-tampering attempt causes isolation of all computers
and peripheral devices rendering product inoperable and showing clear indications of tampering event to user.
Holographic security tamper-evident labels are placed on the enclosure to provide a clear visual indication if product has been opened or
compromised. Metal enclosure is designed to resist mechanical tampering with all microcontrollers protected against firmware-read, modification
and rewrite.
Tamper Evident Labels:
I/O Secure KVM Switch uses holographic tamper evident labels to provide visual indications in case of enclosure intrusion attempt.
If for any reason the tamper evident seal is missing, appears disrupted, or looks different than the example shown here, please avoid using
product and call I/O Technical Support at: (1 [phone]).
Active Anti-Tampering System:
I/O Secure KVM Switch is equipped with an always-on active anti-tampering system. If mechanical intrusion is detected by this system, the Switch
will be permanently disabled and LED will blink continuously with relay clicking. If product indication tampered state (all LEDs blinking and relay
clicking) - please call Technical Support and avoid using that product.

Ioint® Secure DVI 4K KVM Switch User Manual ͸
Product Enclosure Warning Label
I/O Secure KVM Switch has the following Holographic Tamper Evident labels on product enclosure:
Other Features
The I/O Secure DVI KVM was designed with the user in mind for today’s IT environment. Below is a summary of some features incorporated into
the Switch.
Protected Display Information:
Protected DDC/EDID emulation prevents software weaknesses that can cause data leakage while maintaining compatibility with the console
display.
USB Device Detection:
Storage and other unsafe USB devices are rejected when connected to the Switch. Only mouse, keyboard, and CAC reader data are passed
through.
Secure Packaging:
“Tear away” packaging ensures secure delivery of the Switch as it is routed to the end user. The recyclable packaging also breaks down flat,
simplifying the cleanup process.
USB Support:
The Switch is compatible with USB technology and support to plug-and-play connectivity with USB computers, keyboards, mice, and CAC readers.
User Display:
The I/O Secure DVI KVM is compatible with the following types of user displays:
DVI capable displays.
DVI KVM Switch ports support UHD 4K resolutions of up to 3840x2160 pixels @ 30Hz.
Audio Switching:
This allows you to share speakers between computers.
CAC ON/OFF Switch (CAC support model only)
Independents CAC reader ON/OFF switch for each hosts for easy operation

Ioint® Secure DVI 4K KVM Switch User Manual ͹
Port Coloring
The included color label can be associated with an established network to facilitate port identification and reduce user switching error.
LED Indicators
Each port button number illuminates to indicate that the console currently controls the corresponding computer. As a port selector is pushed, the
LED number will light up.
USB Connectors
High-retention USB connectors keep the USB connections secure and tight, preventing accidental disconnections.
Increased Reliability
Using a new, advanced anti-tampering battery with an extremely low self-discharge rate the life expectancy of the switch has been increased
dramatically to over 10 years.
Equipment Requirements
Cables
I/O highly recommends you use I/O DVI USB KVM Cable Kits for your Switch to help ensure superior performance. These cables offer the highest
quality possible to ensure optimal data and video transmission. One Cable Kit is required per connected computer. Do not use cables with
microphone or line-in audio input.
USB A/M - B/M Cables
USB Cable, 6 ft .(1.8m); (SV141D1, SV121D1, SV241D1)
Note: Due to USB and DVI signal limitations, the cable length cannot exceed 15 feet (4.6m).

Ioint® Secure DVI 4K KVM Switch User Manual ͺ
System Requirements
Operating Systems
Product is compatible with devices running on the following operating systems:
Microsoft® Windows® 2000
Microsoft® Windows® Vista
Microsoft® Windows® 7
Microsoft® Windows® 8
Microsoft® Windows® 8.1
Microsoft® Windows® 10
Linux®: Kernel 2.6+, RedHat v6.0+, SuSE v8.2+. Mandriva (Mandrake) v9.0+, UNIX: AIX v4.3+.
FreeBSD v3.51+, Sun Solaris v9+ , Novell Netware v5.0+, DOS v6.2+
Mac OS® X V9 and higher.
USB Keyboard console port
The product console USB keyboard port is compatible with Standard USB keyboards.
Notes:
a. Console USB keyboard and mouse ports are switchable, i.e .you can connect keyboard to mouse port and vice versa. However,
for optimal operation it is recommended to connect USB keyboard to console USB keyboard port and USB mouse to console USB
mouse port.
b. For security reasons products do not support wireless keyboards .In any case do not connect wireless keyboard to product.
c. Non-standard keyboards, such as keyboards with integrated USB hubs and other USB-integrated devices, may not be fully
supported due to security policy. If they are supported, only classical keyboard (HID) operation will be functional. It is
recommended to use standard USB keyboards.
USB Mouse console port
The product console USB mouse port is compatible with standard USB port.
Notes:
a. Console USB keyboard and mouse ports are switchable, i.e. you can connect keyboard to mouse port and vice versa. However,
for optimal operation it is recommended to connect USB keyboard to console USB keyboard port and USB mouse to console USB
mouse port.
b. Console USB mouse port supports Standard KVM Extender composite device having a keyboard/mouse functions.
c. For security reasons products do not support wireless mice. In any case do not connect wireless mouse to product.
PS/2 Mouse and Keyboard console ports
The product console PS/2 keyboard and mouse ports are compatible with standard PS/2 keyboards and mice.

Ioint® Secure DVI 4K KVM Switch User Manual ͻ
USB Port
The product USB port is compatible with standard USB port, standard 2 or 3 buttons USB mouse or keyboard.
Monitor Port
The product DVI monitor is compatible with the highest resolution.
CAC Port
The product is compatible for CAC (Common Access Card) reader.
PS/2 Port
The product is compatible for standard PS/2 keyboard or mouse.
Speaker
The unit is compatible with analog PC speaker with 3.5mm stereo plug.
Desktop Control Unit
The unit is provided with DCU AR00010 only with provided cable.

Ioint® Secure DVI 4K KVM Switch User Manual
Unit Display Diagram
SV141D0 Model Shown
Unit Display Diagram, Front View
SV141D1 Model Shown
Unit Display Diagram, Front View
Unit Display Diagram, Back View
Unit Display Diagram, Back View

Ioint® Secure DVI 4K KVM Switch User Manual
SV241D0 Model Shown
Unit Display Diagram, Front View
SV241D1 Model Shown
Unit Display Diagram, Front View Unit Display Diagram, Back View
Unit Display D Back Viewiagram,

Ioint® Secure DVI 4K KVM Switch User Manual
SV121D0 Model Shown
Unit Display Diagram, Front View
Unit Display Diagram, Back View
SV121D1 Model Shown
Unit Display Diagram, Front View Unit Display Diagram, Back View

Ioint® Secure DVI 4K KVM Switch User Manual ͳ͵
Specifications
Part No.
SV141D0, SV141D1, SV121D0,
SV121D1, SV241D0, SV241D1
CAC Ports
USB Type A Female
Enclosure Faceplate
Heavy-duty extruded aluminum
enclosure with metal faceplate
Audio
1/8" (3.5mm) female
Power Requirements
12V DC, 1.5A (maximum) power
adapter with center-pin-positive
polarity.
Port Selectors
4 Port (SV141D0, SV141D1,
SV241D0, SV241D1)
2 Port (SV121D0, SV121D1)
AC Input
90 to 264VAC
LED Indicators
4 indicators (SV141D0, SV141D1,
SV241D0, SV241D1)
2 indicators (SV121D0, SV121D1)
No. of Audio Supported
4 (SV141D0, SV141D1, SV241D0,
SV241D1)
User Channel Selection
Methods
4 Front-panel push buttons
2 (SV121D0, SV121D1)
Operating Temp
32° to 122° F (0° to 50° C)
No .of Host Computers
Supported
4 (SV141D0, SV141D1, SV241D0,
SV241D1)
Storage Temp
-4° to 140° F (-20° to 60° C)
2 (SV121D0, SV121D1)
Humidity
0-80% RH, non-condensing
No .of monitors per computer
supported
4 monitors (SV141D0, SV141D1,
SV241D0, SV241D1)
Dimensions
2.5 inches/(6.4 cm) (H)x 6.1inches/
(15.6 cm) (D)x 12.6 inches/(32 cm)
(L)
2 monitors (SV121D0, SV121D1)
Weight
5.85 lbs.(2.65 kg)
Video supported
DVI-I capable displays for computers
monitor
Made in
Designed in California. Assembled
in US with US and Foreign
components.
Max Resolution Supported
DVI ports support UHD 4K resolutions
of up to 3840x2160 pixels @ 30Hz.
Product Life-Cycle
10 years
Console Keyboard Port
USB Type A and PS/2 Mini-DIN 6-pin
female connector
Warranty
3 years
Console Mouse Port
USB Type A and PS/2 Mini-DIN 6-pin
female connector
Security Accreditation
Common Criteria Validated To
NIAP Protection Profile PSS
Ver.3.0
Console CAC Input
USB Type A female connector
Console Monitor Port
1 or 2 DVI-I female connector
Console Speaker
1/8" (3.5mm) female

Ioint® Secure DVI 4K KVM Switch User Manual ͳͶ
Installation
Pre-Configuration
Where to place the Switch:
The enclosure of the Switch is designed for desktop or rack-mount configuration.
Rack-mount brackets are included with the Switch (Sold Separately).
Consider the following when deciding where to place the Switch:
Your proximity to the port selectors on the front of the Switch
The lengths of the cables attached to your keyboard, monitor, and mouse
The location of your computers in relation to your console
The lengths of the cables you use to connect your computers to the Switch
Connection and Installation
Step 1-Connecting the peripheral devices to the Switch Console
Warning: Before attempting to connect anything to the Switch or your computers,
Please ensure that all computer equipment and devices are powered off.
Connect your monitor, keyboard, mouse, and speaker to the rear of
the switch in the “Console” section.
Step 2 –Power Up
2.1 Turn the monitor on.
2.2 Power up the I/O DVI KVM by connecting the power.
The display diagnostic LED should be solid green a few
seconds after power up. This indicates the display EDID
information has been captured and secured.
Important:
1. If the unit’s enclosure appears disrupted or if all channel-select
LEDs Flash continuously, please remove product from
Service immediately and contact I/O Technical Support at
(1 [phone]).
2. Do not connect product to computing devices:
That include frame grabber video cards;
That includes special audio processing cards.
That includes telecommunication equipment;
Warning: Avoid placing cables near fluorescent lights, air-conditioning
equipment, or machines that create electrical noise (e.g., vacuum cleaners).
Important: As the unit powers up it performs a self-test procedure. In case the self-
test has failed for any reason the product LED behavior will be abnormal as described
in User Guidance section. Try to power cycle the unit. If problem persists please
contact your system administrator or Technical Support.
Notes:
1. Console USB keyboard and mouse ports are switchable, i.e. you
can connect keyboard to mouse port and vice versa. However, for
optimal operation it is recommended to connect USB keyboard to
console USB keyboard port and USB mouse to console USB
mouse port.
2. For security reasons products do not support wireless keyboards.
In any case do not connect wireless keyboard to product.
3. Non-standard keyboards, such as keyboards with integrated USB
hubs and other USB-integrated devices, may not be fully
supported due to security policy .If they are supported, only
classical keyboard (HID) operation will be functional. It is
recommended to use standard USB keyboards.
4. Console USB mouse port supports Standard KVM Extender
composite device having a keyboard/mouse functions

Ioint® Secure DVI 4K KVM Switch User Manual ͳͷ
Step 3 –Connecting the Computers
3.1 Using USB cables, connect each computer to the USB port
in “computer interface ports” area on product.
3.2 If computer uses audio output, e.g. speakers/headphones, connect audio cable
from its audio output port to the corresponding audio input port on product.
3.3 If the computer uses a smart card/CAC reader, connect a USB cable between
the CAC-enabled computer and the corresponding CAC port on product.
Step 4- Powering Up the Computers
Power up all the attached computers and check the display and peripheral functionality.
All computers can be powered on simultaneously.
When you power on your computers, the Switch emulates both a mouse and keyboard
on each port and allows your computers to boot normally. The computer connected to
port “1” will be displayed on the monitor. Check to see that the keyboard, monitor, and
mouse are working normally. Proceed to do this with all occupied ports to verify that all
Computers are connected and responding correctly. If you encounter an error, check your
cable connections for that computer and reboot. If the problem persists,
please refer to the Troubleshooting section in this User Manual.
Color Code Label Installation
The I/O Secure DVI KVM’s port-selector buttons can be color-coded for easier identification.
Note:
1. If the number of product channels is larger than the number of
sources used, make sure the computers are connected in a row
starting from computer #1.For example, if there are 3 channels
used, connect computers to channels #1, #2 and then #3.
2. The USB cable must be connected directly to a free USB port on
the computer, with no USB hubs or other devices in between.
Note:
Your computers should recognize the Switch and automatically install
the HID USB driver if necessary.

Ioint® Secure DVI 4K KVM Switch User Manual ͳ͸
Operating the KVM Switch
Selecting a Computer Using Port Selectors
Self-Test Procedure:
As 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 the following
abnormal LED behavior:
All channel-select LEDs will be turned ON and then OFF;
A specific, predefined LED combination will be turned ON;
The predefined LED combination will indicate the problem
type (jammed buttons, firmware integrity).
Try to power cycle product. If problem persists please contact your system
administrator or technical support. Now that product, computers and
peripherals are connected and powered up, it is ready for use.
Now that you have connected your console and computers to the Switch, it
is ready for use. You can select which computer you wish to control by
pressing the corresponding port selector on the front of the Switch. The
LED number will illuminate to indicate which computer (or port) is
currently selected. It may take approximately 1 second for the video signal
to sync after switching ports. This is normal behavior and is dependent on
the display connected. This is normal operation and ensures that proper
synchronization is established between the monitor and the connected
computers.
Keyboard and mouse inputs can only be sent to the selected computer,
and video outputs can only be received from the selected computer. The
Switch also prevents any data transfer between connected computers,
ensuring the security of your computers.
Please note that the default port at power-up is port 1.In case of a power
failure or if the power is cycled, the Switch will default to port 1.

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Common Access Card (CAC) Configuration and Operation
CAC connection to the computer requires a separate USB cable connection and
allows the user to specify whether there is a CAC required for that computer or not.
This allows the CAC to be connected and controlled separately to the keyboard,
mouse, video and audio.
Step 1 –Installation
1.1 Using the included USB cable, connect one end of the cable to the computer that requires
CAC, and the other end to the CAC port on the I/O DVI KVM
that corresponds to the computer.
1.2 Enable CAC for the same port connection in Step 1.1 by switching the CAC switch to the right.
1.3 Repeat steps above for additional computers that require CAC.
Note: Make sure that the CAC switch is disabled (left) for all other non-connected CAC systems.
1.4 Once configured, the CAC connection will be switched only when required by the connected computer.
When switching from a CAC enabled port to a non-CAC enabled port, the CAC connection will remain
with the last previously selected port where the CAC was set to enable.

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Troubleshooting
General
As product powers-up all channel-select LEDs are turned ON and then OFF. After that a specific, predefined LED combination is
turned ON. Product is inoperable.
The product did not pass self-test procedure. Try to power cycle product. If problem persists please contact your system administrator or
our technical support [e-mail] .
My computer does not boot when connected to the Switch but works fine when I connect my keyboard, video, and mouse
directly to my computer.
Make sure that the DVI/USB KVM Cable is connected tightly between the Switch and the computer.
The Switch does not turn on.
Ensure that the AC power cord is securely connected to both the AC inlet and to the wall outlet.
Check that the power switch is in the ON position.
The Switch makes rapid clicking noises and the port LEDs flash sequentially when turned on.
If the clicking noises continue, the unit may have been tampered with or experienced severe impact.
NOTE: This Switch is equipped with active anti-tamper triggers. Any attempt to open the enclosure will activate the anti-tamper triggers
and render the unit inoperable. If the unit’s enclosure appears disrupted or if all the port LEDs flash continuously,
please call I/O Technical Support at (1 [phone]).

Ioint® Secure DVI 4K KVM Switch User Manual ͳͻ
Video
I am getting ghosting, shadowing, or fuzzy images on my monitor.
Check that all video cables are inserted properly to the Switch, computer, and monitor.
With everything connected power-cycle the I/O Secure DVI KVM to reset the video.
Make sure the Video Diagnostic LED is solid green.
Check that the monitor you are using supports the resolution and refresh-rate setting on your computer.
Lower the video resolution of your monitor.
Check that the video-cable length does not exceed 15 feet (4.6m).
Check that the graphics card you are using supports the resolution and refresh-rate setting on your computer.
Connect the monitor directly into the computer you are having trouble with to see if the problem still appears.
Do not use video splitters.
I am getting a blank screen on my monitor.
Ensure that the power switch is in the ON position.
Check that the display is turned on
Check that the cables are connected, and check that the display input is DVI
Check that all video cables are inserted properly.
Ensure that the power cord is inserted securely to the AC outlet.
Connect your monitor directly to the computer to verify that your monitor is functioning properly.
Reboot the computer.
Try a different video cable.
Try a different monitor.
Ensure to download the latest display drivers.
I have difficulty inserting a DVI cable into the Switch.
Check that the connectors are not bent or damaged.
Check if the contacts on the Switch DVI connectors are not bent or damaged.