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| Viewlock
II Video Encryption System |
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| Viewlock II Video Encryption System
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Viewlock II Video Encryption System
Microwave and cabled video surveillance links
are insecure and are open to the threat of interception.
Viewlock safeguards the operational integrity
of such links, by scrambling the video during
transmission, making it impossible to intercept
and decrypt the surveyed scene. Viewlock II's
advanced digital processing, coupled with the
use of multiple encryption keys, offers the very
best in security.
Viewlock II builds on over 5 years experience
with the highly successful Viewlock 1 range of
video encryption systems. Viewlock II inproves
on all the best features and functions of the
original system such as fast lock-in tme, excellent
picture quality, and in noise performance whilst
the size has benn halved to a package of only
23x60x100mm. Furthermore, current consumption
has been dramatically reduced and ViewlockII requires
a mere 65 mA from a 12 volt DC power supply. Viewlock
II is able to offer such performance gains, at
such low current, by incorporating a deticated
chip (ASIC) to perform all the scrambling functions.
The use of an ASIC chip also improves security
and reliability as the system is highly integrated
and fewer components are required.
Viewlock II is now the worlds leading encryption
system for the protection of video transmissions
by the police, military, and government agencies.
ighly Secure: Secure algorithms, seeded by an
unreadable primary key, are used to generate the
cut and rotate sequences. Only if the primary
keys match will the decoder be able to decrypt
the received video.
Covert Installtion: ViewlockII's rugged construction,
small dimensions and low DC power requirement
make the system ideal for covert installations.
Furthermore, it's wide operating temperture rane
and weatherproofing to IP65 specifications, means
that permanent outdoor operation is not a problem.
On Screen Display (OSD): Viewlock II includes
an on screen display as standard showing information
about the status of the link. The OSD shows "Secure"
when the link has been successfully encoded and
decoded and "Insecure" when the video has not
been scrambled. To aid fault finding and installation,
Viewlock II also displays additional messages
such as "No Link", when there is no video at the
input of the decoder, and "No Video" when the
encoders input is absent.
Outline Specifications
Mechanical size: 127x60x23mm
Operating Temperture Range: -10 to +70 deg C
Weight: 220g
DC Power input: 6 to 17 vdc at <0,8 watts (eg<65mA
at 12v)
EMC Compliance: EN5502 Clas A & EN50082-1 FCC
part 15B class A
VIDEO:
Scrambling method: Active line cut and rotate
Number of cut points: 256
Video Standards: PAL & NTSC 525 & 625 lines (auto-switching)
Video Input/Output: BNC 1Vpp 75R
Digital Sampling: 8 Bits
Signal to noise: >55dB weighted (>60 dB typ)
Lock in time: <0.25 sec. (typical)
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