4
Belkin
®
Secure Ultra High Def DP/HDMI to DP/HDMI KVM Switch
oVeRVIew
SECTIONS
Table of Contents
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2
security features
The 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 the 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
A 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
The 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
a tampering event to the 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.
