User guide

 


16

SECT4
Operation
In operation, the AdderView Secure unit allows you to quickly and securely
switch between up to four systems. Strictly only one system may be accessed at
atime,whereuponthecommonkeyboardandmouse(andsmartcardreader,if
used)arelinkedtothatsystem.
Important security features
Tamper-evident seals
Given the high security nature of most installations that incorporate this unit,
tamper-evident seals are fitted as standard across certain chassis screws. As part
of a best practice policy, you are recommended to check any applied seals on a
regular basis to ensure that the unit has not been opened without authorization.
IMPORTANT:Donotusetheunitifthetamper-evidentsealsare
damaged.Donotuseifthereareanysignsofdamagetotheunitorits
power supply.
The security indicators
The front panel includes five indicators that are dedicated to the AdderView
Secure’s internal security system.
Note: Although anti-subversion monitoring continues to take place while the
unit is powered down, indications are only given once power is reapplied.
If any subversions are suspected by the unit then it will immediately enter a lock
down state where the following will take place:
• Thecomputerchannelsbecomeisolatedandwillnotrespondtothefront
panel buttons,
• Thegreenauthenticationchannelindicatorwillilluminate,
• Thefourredsecuritywillcontinuallyshowthefollowingashingalert
sequence:
Anti-subversion monitoring (enhanced models only)
Theenhancedmodels(AVSC1102-XXandAVSC1104-XX)continuallymonitor
theirvariousdefencesforpotentialsubversions(evenwhenpowerisremoved),
such as:
• Dismantlingofthecase,
• Tamperingwiththecircuitry,
• Lossorcorruptionofauthenticationsecurityinformation.
To confirm that such checks are taking place, every five seconds the red security
indicators will display a brief scanning sequence where one light appears to
track right and then left along the row:
www.adder.com
SECURE
ADDERVIEW
Green authentication
channel indicator
Illuminates whenever the
authentication channel is
selected. The indicator will be
on immediately after power
up, until a computer channel is
selected.
Fourredanti-subversion
(and authentication) indicators
Onenhancedmodels,theseindicatethe
current state of the anti-subversion function
(discussedinthenextsection)andalso
provide responses whenever you use the
authentication process.
Oncethealertstateoccurs,itisirreversible.Theunitcannolongerbeusedand
must be replaced.