Belkin F1DN104A Merkblatt
FEATURES
AUDIO AND MICROPHONE SWITCHING
The Switch supports both stereo audio and microphone analog
signals. Analog signals are passed through. This allows you to
share headsets, speakers, and microphones between computers
or IP phones.
signals. Analog signals are passed through. This allows you to
share headsets, speakers, and microphones between computers
or IP phones.
DEDICATED BOARDS
The Switch features a dedicated printed circuit board for audio
and microphone signals. This keeps the audio signals physically
separated from the microphone signals to reduce the possibility of
leakage between both signals.
and microphone signals. This keeps the audio signals physically
separated from the microphone signals to reduce the possibility of
leakage between both signals.
HARDWARE MICROPHONE MUTE BUTTON
The Switch incorporates a hardware microphone mute button to
shut off the microphone when the Switch is not in use or while
handling calls where the microphone is not required. The mute
switch cannot be manipulated by software or driver.
shut off the microphone when the Switch is not in use or while
handling calls where the microphone is not required. The mute
switch cannot be manipulated by software or driver.
NO MEMORY BUFFER
Unlike solid-state audio multiplexers, the Switch relies on high-
quality mechanical relays, does not have a memory buffer, and
does not have the ability to store data. This prevents signals
from being unintentionally transferred as you switch between
computers, ensuring the integrity of your signal.
quality mechanical relays, does not have a memory buffer, and
does not have the ability to store data. This prevents signals
from being unintentionally transferred as you switch between
computers, ensuring the integrity of your signal.
NON-REPROGRAMMABLE FIRMWARE
The Switch features custom firmware that is not reprogrammable,
preventing the ability to tamper with the Switch logic.
preventing the ability to tamper with the Switch logic.
METAL-PLATE FIREWALL
A metal firewall is placed between the audio and microphone
PCBs (printed circuit boards) to reduce the potential of EMI
(electromagnetic interference) leakage.
PCBs (printed circuit boards) to reduce the potential of EMI
(electromagnetic interference) leakage.
TAMPER-EVIDENT TAPE
A holographic security tamper-evident label is placed on the
enclosure to provide a visual indication if the Switch has been
opened or compromised.
enclosure to provide a visual indication if the Switch has been
opened or compromised.
PORT COLORING
The included color chips can be inserted into each port-selector
button. Colors can be associated with an established network to
facilitate port identification and reduce user switching error.
button. Colors can be associated with an established network to
facilitate port identification and reduce user switching error.
SECURE PACKAGING
“Tear away” packaging ensures secure delivery of the Switch as it
is routed to the end user.
is routed to the end user.
Secure Audio and Microphone 4-Port Switch
Secure headset-sharing solution for PC and VoIP phones
In recent years, government defense and intelligence agencies have increased the use of voice communication over
networks running at different security levels. Multiple computers and/or VoIP (Voice over IP) phones are common on
a secure user’s desktops. Some agencies may use a KVM to switch microphone and audio, but that can put the user
in a critical position as the microphone can be used by attackers to leak data between two networks. The adoption
of a Secure Audio and Microphone Switch can significantly increase the user’s productivity and reduce security risks
caused by the vulnerabilities of analog signals in a digital environment.
networks running at different security levels. Multiple computers and/or VoIP (Voice over IP) phones are common on
a secure user’s desktops. Some agencies may use a KVM to switch microphone and audio, but that can put the user
in a critical position as the microphone can be used by attackers to leak data between two networks. The adoption
of a Secure Audio and Microphone Switch can significantly increase the user’s productivity and reduce security risks
caused by the vulnerabilities of analog signals in a digital environment.
A Secure Audio and Microphone Switch installation can be used to
reduce security risks by:
• Reducing the number of exposed microphones that can be
reduce security risks by:
• Reducing the number of exposed microphones that can be
exploited by malicious software attacks
• Reducing security risks caused by user errors when multiple
headsets/microphones are preset
• Eliminating the microphone-switching function from the KVM to
isolate it from the USB and PS2 signals
• Incorporating an external microphone mute button to shut off the
microphone when the Switch is not in use or while handling calls
where the microphone is not required
where the microphone is not required
• Preventing the system’s mute switch from being manipulated by
software or driver with a hardware mute switch
? Did You Know ?
With malicious software, this audio signal
processor can be used to:
• Link between networks by
• Link between networks by
implementing a primitive modem
function
• Tune the microphone frequency to
analyze surrounding digital streams
• Leak (hear and transmit) surrounding
audio signals from the room
• Analyze ground-plane noise that can
be used to filter keyboards’ PS2 or
USB inputs
• Filter signals. Performing statistics,
adaptive processing, conversion etc.