Emerson SC 820 User manual

1
Section 1 - Introduction
2-PORT SINGLE-HEAD SECURE KVM
Products covered by this manual - secure 2 port KVMs:

SC 820 –DVI-I Video

SC 820D –DisplayPort Video

SC 820H –HDMI Video
Rev: E
Doc No.: HDC10366
Secure KVM Switch 2-Port, Single-Head User Manual

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2-PORT SINGLE-HEAD SECURE KVM
Table of Contents
Introduction ....................................................................................... 3
Intended Audience............................................................................. 3
Package Contents .......................................................................... 3
Revision.......................................................................................... 3
Overview ............................................................................................ 4
Safety Precautions ......................................................................... 4
Safety Precautions (French)........................................................... 5
User Guidance & Precautions........................................................ 6
Main Features................................................................................ 8
Tamper Evident Labels ................................................................ 10
Active Anti-Tampering System .................................................... 10
Product Enclosure Warning Label ............................................... 10
Equipment Requirements............................................................ 11
Front Panel Features ................................................................... 12
Rear Panel Features –SC 820 ...................................................... 13
Product Specifications ................................................................. 14
Before Installation ....................................................................... 15
Installation ....................................................................................... 16
Typical system installation........................................................... 17
Operation......................................................................................... 18
Operating the Product................................................................. 18
Troubleshooting Guide .................................................................... 19
Copyright and Legal Notice.......................................................... 22

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2-PORT SINGLE-HEAD SECURE KVM
Section 1 - Introduction
Introduction
Thank you for purchasing this Emerson Secure product designed for
use in secure defense and intelligence installations. The product
provides the highest security safeguards and features that meet
today’s IA (information assurance) computing requirements as
defined in the latest PSS Protection Profile Rev 3.0.
This User Manual provides all the details you’ll need to install and
operate your new product.
Intended Audience
This document is intended for the following professionals:
•System Administrators/IT Managers
•End Users
Package Contents
Inside product packaging you will find the following:
Emerson Secure Product
DC Power Supply
User Guidance Documentation
Revision
A –Initial Release, 24 Feb 2015
B –Corrections, 5 April 2015
C –Product image updates, 25 May 2015
D –User Guidance updates, 21 June 2015
E –Correction to Features section, 13 August 2015
Important Security Note:
If you are aware of potential security vulnerability while
installing or operating this product, we encourage you to
contact us immediately in one of the following ways:
Web form: Emerson Support
Email: [e-mail]
Tel: [phone]
Important: This product is equipped with 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.

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
Overview
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.
oThe 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 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.

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
Safety Precautions (French)
Veuillez lire attentivement les précautions de sécurité suivantes
avant d’utiliser le produit:
Avant nettoyage, débranchez l’appareil de
l’alimentation DC / AC.
Assurez-vous de ne pas exposer l’appareil à une
humidité excessive.
Assurez-vous d’installer l’appareil sur une surface
sécurisée propre.
Ne placez pas le cordon d’alimentation DC en
travers d’un passage.
Si l’appareil n’est pas utilisé de longtemps, retirez
l’alimentation murale de la prise électrique.
L’appareil devra être rangé uniquement dans des
environnements à humidité et température
contrôlées comme défini dans les caractéristiques
environnementales du produit.
L’alimentation murale utilisée avec cet appareil
devra être du modèle fourni par le fabricant ou un
équivalent certifié fourni par le fabricant ou
fournisseur de service autorisé.
Si une des situations suivantes survenait, faites
vérifier l’appareil par un technicien de
maintenance qualifié:
oEn cas d'alimentation externe - L’alimentation
de l’appareil surchauffe, est endommagée,
cassée ou dégage de la fumée
oou provoque des court circuits de la prise du
secteur.
oUn liquide a pénétré dans le boîtier de
l’appareil.
oL’appareil est exposé à de l’humidité excessive
ou à l’eau.
oL’appareil ne fonctionne pas correctement
même après avoir suivi attentivement les
instructions contenues dans ce guide de
l’utilisateur.
oL’appareil est tombé ou est physiquement
endommagé.
oL’appareil présente des signes évidents de
pièce interne cassée ou desserrée
oL’appareil contient une batterie interne. La
batterie n’est pas remplaçable. N’essayez
jamais de remplacer la batterie car toute
tentative d’ouvrir le boîtier de l’appareil
entraînerait des dommages permanents à
l’appareil.
oCe produit est équipé d'toujours-sur le
système anti-sabotage active. Toute tentative
d'ouvrir le boîtier du produit va activer le
déclencheur anti-sabotage et de rendre l'unité
vide inutilisable et garantie.

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
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. Product power-up and RFD behavior:
a. By default, after product power-up, the active
channel will be computer #1, indicated by the
applicable front panel push button LED lit.
b. Product Restore-to-Factory-Default (RFD) function
is available via a physical control button on rear
panel. Use a sharp object or paper clip to hold RFD
button pressed for several seconds to initiate an
RFD action.
c. RFD action will be indicated by front panel LEDs
blinking all together.
d. When product boots after RFD, keyboard and
mouse will be mapped to the active channel #1 and
default settings will be restored, erasing all user-set
definitions.
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 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. In case a connected device is rejected in the console port
group the user will have the following visual indications:
a. When connecting a non-qualified keyboard, the
keyboard will be non-functional with no visible
keyboard strokes on screen when using the
keyboard.
b. When connecting a non-qualified mouse, the
mouse will be non-functional with mouse cursor
frozen on screen.

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
c. When connecting a non-qualified display, the video
diagnostic LED will flash green and video will not
work.
d. When connecting a non-qualified USB device, fUSB
LED will flash green and USB device will be
inoperable.
8. Do not connect product to computing devices:
a. That are TEMPEST computers;
b. That include telecommunication equipment;
c. That include frame grabber video cards;
d. That include special audio processing cards.
9. Product has a remote control port in the back panel labeled
RCU. Do not use this port - it is inoperable and for future
use.
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. Authentication session will be terminated once product
power is down or user intentionally terminates session.
13. 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.

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
Main 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. For DisplayPort
video, filtration of AUX channel exists to reject unauthorized
transactions.
Isolation of power domains
Complete isolation of power domains prevents signaling attacks.
Secure administrator access & log functions
Product incorporates secure administrator access and log functions
to provide auditable trail for all product security events, including
battery backup life for anti-tampering and log functions. Non-
reprogrammable firmware prevents the ability to tamper with
product logic.
Always-on, active anti-tamper system
Active anti-tampering system prevents malicious insertion of
hardware implant such as wireless key-logger inside product
enclosure. 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.

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
Main Features (Cont.)
Small form factor:
Small form factor product occupying minimum desktop space.
Video Support
SC820 supports DVI-I displays as well as VGA and HDMI via
compatible cables.
SC820D supports DisplayPort1.1 & 1.2 displays.
SC820H supports HDMI displays.
Resolutions Supported
Products support video resolutions of up to 4K-2K Ultra HD (3840 X
2160 pixels).

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
Tamper Evident Labels
Product uses holographic tamper evident labels to provide visual
indications in case of an enclosure intrusion attempt. When opening
product packaging inspect the tampering evident labels.
If for any reason one or more tamper-evident label is missing,
appears disrupted, or looks different than the example shown
here, please call Technical Support and avoid using that product.
Active Anti-Tampering System
Product is equipped with always-on active anti-tampering system. If
mechanical intrusion is detected by this system, the Product will be
permanently disabled and all LEDs will blink continuously.
If product indicates "tampered state" (all LEDs blinking) - please
call Technical Support and avoid using that product.
Product Enclosure Warning Label
Product has the following warning sticker on a prominent location
on the product enclosure:
Emerson Tamper Evident Label

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
Equipment Requirements
Cables
It is highly recommended to use Emerson Cable Kits for product to
ensure optimal security and performance.
One Cable Kit is required per connected computer.
Operating Systems
Product is compatible with devices running on the following
operating systems:
• Microsoft® Windows®
• Red Hat®, Ubuntu® and other Linux® platforms
• Mac OS® X v10.3 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 mice.
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.
User Display
The Switch console video port is compatible with the following
types of displays:
SC820 supports DVI-I displays as well as VGA and HDMI via
compatible cables.
SC820D supports DisplayPort1.1 & 1.2 displays.
SC820H supports HDMI displays.
User Audio Devices
Product is compatible with the following types of user audio
devices:
Stereo headphones;
Amplified stereo speakers.
Note: In any case do not connect a microphone to product audio
output port including headsets.

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
Front Panel Features
Computers #1 & #2:
illuminated push-buttons
labels place holders
CAPS
Lock LED
Holographic Tamper
Evident Labels
Decorative blue LEDs
stripe
NUM
Lock LED
SCROLL
Lock LED
Holographic Tamper
Evident Labels

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
Rear Panel Features –SC 820
Restore to
factory
default
Remote Control –
non operative, for future use
Computer interface group:
DC power supply
Console ports group:
Audio input jack
(3.5mm stereo)
USB Type-B for
Keyboard / Mouse
Audio input jack
(3.5mm stereo)
USB for Keyboard /
Mouse
Console DVI-I
video input
and status LED
DVI-I video
input
Model illustrated above is SC820.
SC820D and SC820H are identical except for having DP and HDMI video ports, respectively.

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
Product Specifications
Enclosure: Steel metal enclosure
Power Requirements: DC input 12V / 1.5A maximum
No. of Users Supported: 1
No. of Computers Supported: 2
No. of Displays Supported: 1
Console Keyboard Input: USB Type-A female connector
Console Mouse Input: USB Type-A female connector
Resolution Support up to 4K-2K Ultra HD (3840 X 2160
pixels) resolutions
Console Display Port 1 x DVI-I female connector (SC 820
model)
1 x DisplayPort female connector
(SC 820D model)
1 x HDMI female connector
(SC 820H model)
Console Audio input jack: 1/8" (3.5mm) stereo female jack
Computer Keyboard/Mouse ports: USB Type B
Computer Audio Input plug: 1/8" (3.5mm) stereo plug
Front Panel indicators CAPS LOCK, NUM LOCK, SCL LOCK
Computer Video Input plug:
1 x DVI-I video port (SC 820 model)
1 x DisplayPort video port (SC 820D model)
1 x HDMI video port (SC 820H model)
Port Selector illuminated push-buttons & LEDS: 2
User Channel Selection Methods: Front panel push-buttons
Operating Temp: 32° to 104° F (0° to 40° C)
Storage Temp: -4° to 140° F (-20° to 60° C)
Humidity: 0-80% RH, non-condensing
Product design life-cycle: 10 years
Warranty: 2 years

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2-PORT SINGLE-HEAD SECURE KVM
Section 2 - Overview
Before Installation
Unpacking the Product
Before opening the product packaging, inspect the packaging
condition to assure that product was not damaged during delivery.
When opening the package, inspect that the product Tamper
Evident Labels are intact.
Where to locate the Product?
The enclosure of the product is designed for desktop or under the
table configurations. An optional Mount Kit is available.
Product must be located in a secure and well protected
environment to prevent potential attacker access.
Consider the following when deciding where to place product:
Product front panel must be visible to the user at all times.
The location of the computers in relation to the product and
the length of available cables (typically 1.8 m)
Warning: Avoid placing cables near fluorescent lights, air-
conditioning equipment, RF equipment or machines that create
electrical noise (e.g., vacuum cleaners).
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 Technical Support
at:
http://www.emersonnetworkpower.com/en-
US/Support/Technical-
Support/InfrastructureManagement/Pages/default.aspx
2. Do not connect product to computing devices:
a. That are TEMPEST computers;
b. That include telecommunication equipment;
c. That include frame grabber video cards
d. That include special audio processing cards.

16
2-PORT SINGLE-HEAD SECURE KVM
Section 4 - Operation
Installation
1. Connecting devices to product console
Product requires connection of all displays; devices and computers
prior to powering it up.
Note: some devices such as user display would not be recognized if
connected after product is already powered up.
See figures above for connector locations.
Connect user display. Mark which display is coupled with which
computer. It is also recommended to mark which computer is
coupled with which channel.
Connect user keyboard and mouse to console keyboard and
mouse ports.
Connect headphones/speakers to console audio out port
(optional).
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.
2. Connecting the Computers
Using USB cables, connect each computer to the USB type B
port in "computer interface ports" area on product.
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. Power up
Connect product DC power supply.
Power up user display/s. Select through display setup menu the
appropriate video input if applicable.
Power up the connected computers.
Power up the product.
When you power up your computers, product emulates display,
mouse and keyboard on each port and allows your computers to
boot normally. You should be able to move the mouse cursor on the
primary display connected to computer #1.
Check to see that the keyboard and mouse are working properly on
each computer.
Repeat this check 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.

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2-PORT SINGLE-HEAD SECURE KVM
Section 4 - Operation
Typical system installation

18
2-PORT SINGLE-HEAD SECURE KVM
Section 4 - Operation
Operation
Operating the Product
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.
Default Channel
After product boots up, blue LEDs stripe will illuminate and the
default active channel will be channel #1. This will be indicated by
white color illumination of
push-button #1.
Product Mapping to Sources
Product mapping to sources is indicated by stickers/labels specifying
which channel is mapped to which computer.
Front Panel Push-Buttons
Following power up, the default channel is #1.
The user can 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. If computer is connected to multiple displays, the
cursor will be positioned at the center of the primary display.
The currently selected channel is indicated by white color
illumination of the appropriate push-button.
Once a different channel is selected - keyboard, mouse, and audio
follow selected channel.
Keyboard Status Indication
In order to enhance usability, product provides keyboard status
indications via dedicated LEDs located on product front panel. To
maintain the required unidirectional connectivity between keyboard
and product, these indication are not given on the keyboard itself as
done with non-secure products
The keyboard status indications are given via 3 LEDs on the front
panel of the product:
• CL – CAPS Lock
• SL – SCROLL Lock
• NL – NUM Lock
The indications behave the same as the LEDs on the keyboard as if it
was connected directly to computer.
Switching from channel to channel may change the status of the
LEDs based on the current settings on the computer connected to
the active channel.

19
2-PORT SINGLE-HEAD SECURE KVM
Section 5 - Troubleshooting
Troubleshooting Guide
General
Problem: 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.
Solution: 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.
Problem: No power - No video output, none of the front panel LEDs
are illuminating.
Solutions:
Check DC power supply connection to make sure product
receives power properly. Replace cable if needed. If problem
persists, contact your system administrator or our technical
support.
Problem: Product enclosure appears disrupted or all channel-select
LEDs flash continuously.
Solution: The product may have been tampered with. Please
remove product from service immediately and contact Technical
Support.
Important Security Note:
If you are aware of potential security vulnerability while installing or
operating this product, we encourage you to contact us immediately in
one of the following ways:
Web form: http://www.emersonnetworkpower.com/en-
US/Support/Technical-Support/KVM/Pages/default.aspx
Email: [e-mail]
Tel: [phone]
Important: If the unit’s enclosure appears disrupted or if all LEDs flash
continuously, please remove product from service immediately and
contact Technical Support at
http://www.emersonnetworkpower.com/en-US/Support/Technical-
Support/KVM/Pages/default.aspx
Important: This product is equipped with 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.

20
2-PORT SINGLE-HEAD SECURE KVM
Section 5 - Troubleshooting
Keyboard
Problem: Mouse and keyboard are not working (two channels)
Solutions:
Check that computer USB and video cables are not crossed
i.e. computer #1 video is connected to channel #1 while USB
keyboard and mouse cables are connected to channel #2.
Problem: Keyboard does not work (all channels)
Solutions:
Check that the keyboard you are using is properly
connected to product.
Check that the USB cable between the product and
computer is properly connected.
Try connecting keyboard to a different USB port on
computer.
Make sure the keyboard works when directly connected to
computer, i.e. the HID USB driver is installed on computer;
this may require computer reboot.
It is recommended to use standard USB keyboards and not
a keyboard with an integrated USB hub or other USB-
integrated devices.
If the computer is coming out of standby mode, allow up to
one minute to regain mouse function.
Try a different keyboard.
Do not use a wireless keyboard.
Mouse
Problem: Mouse and keyboard are not working (two channels)
Solutions:
Check that computer USB and video cables are not crossed
i.e. computer #1 video is connected to channel #1 while USB
keyboard and mouse cables are connected to channel #2.
Problem: Mouse does not work (all channels)
Solutions:
Check that the mouse you are using is properly connected
to product.
Check that USB cable between the product and computer is
properly connected.
Try connecting mouse to a different USB port on computer.
Make sure the mouse works when directly connected to
computer, i.e. the HID USB driver is installed on computer;
this may require computer reboot.
It is recommended to use standard USB mice.
If the computer is coming out of standby mode, allow up to
one minute to regain mouse function.
Try a different mouse.
Do not use a wireless mouse.
Problem: both keyboard and mouse are not working (one channel)
Solution: Use computer Device Manager Utility to see product and
solve problem.