This listing is for AVSD1004-US (4 ports) Switcher only. Use
description below as a general reference.
The ADDERView Secure KVM Switch allows a keyboard, monitor and mouse to be shared
between high and low security systems, sometimes known as red and black networks,
is designed carefully to prevent information flowing between computers or to the
outside world via emissions snooping.
The ADDERView Secure design prevents sensitive data from leaking between ports,
sensitive data leaking to the outside world and sensitive data from being stored in
the device to actively combat a range of potential leakage "threats".
Independantly tested against common criteria, the AVSD achieves Evaluation
Assurance Level 4+. CERTIFICATION REPORT No. CRP259
EAL2+ Common Criteria Evaluation Assurance Level 2 (augmented by
ALC_FLR.2) COMMON CRITERIA (ISO 15408) ASSURANCE LEVEL and Peripheral Sharing Switch
(PSS) For Human Interface Devices Protection Profile, IAD, Version 2.1, 7 September
2010. CERTIFICATION REPORT No. CRP268.
Uni-directional data paths for Keyboard and Mouse
Unique one-way data paths ensure that data isolation does not rely on trusting
microprocessor software, but is instead assured by hardware and prevents a hidden
software weaknesses that could potentially cause data leakage. A uni-directional
structure also protects against timing analysis or forced malfunction attacks and
prevents computers influencing the operation of any common circuitry.
Minimal emissions profile
The ADDERView Secure is heavily shielded with double shielding in critical areas
to minimise the risk of eavesdropping equipment being able to pick up signals from
No shared RAM between ports
The keyboard and mouse processor is powered down and reset at each switchover to
thwart shared RAM leakages. Separate memories hold the num, caps and scroll states
and are only accessible when the relevant channel is selected. All data buffers are
cleared once they have been used.
One time programmable microprocessors
Microprocessors are one time programmable and don't contain reprogrammable flash
memory. This protects against sensitive data being stored within the device and
protects the software against being corrupted.
60dB crosstalk isolation
High crosstalk isolation ensures that less than 1/1000th of any signal from one
computer is presented to the input of another computer due to electrical crosstalk.
Restricted USB function
The USB ports will only support keyboards and mice and other devices, such as USB
storage drives, are actively prohibited.
No microphone connections
To prevent small levels of crosstalk noise from being "recorded", microphone
connections are banned from the design.
Independent power supplies block power line signalling
The circuitry for each port is independently powered from the USB lead. Power
line signaling is therefore blocked because different port circuits don't share the
same power feed.
ADDERView Secure checks its own operation
The hardware and software must agree before data flow is enabled. The switch
constantly checks its own operation and will stop operating and flash its error
light if an unanticipated event occurs.
For maximum compatibility and security USB keyboard/mouse and dual link DVI-I
monitor interfaces are used and makes the AdderView Secure truely platform
Superb video performance
Dual link DVI interface operates at full DVI bandwidth to ensure higher end
applications that require exact video quality, sometimes at very high video
resolutions, are not compromised. DVI interfaces have the added security advantage
that randomizing the low order video bit can make snooping much harder.
Digital or analogue video
Simple channel selection
Tamper proof design
Keyboard and mouse hotkey switching is banned from the design