wireless cctv solutions guide
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Download the Purdicom wireless CCTV solutions guide! (http://www.purdi.com)TRANSCRIPT
Using Wireless for CCTV Backhaul
t: 0333 1212 100 w: www.purdi.com e: [email protected]
Effective Backhaul: Capacity, Security, Affordability & Scalability
Town centres, business parks, emergency services, schools and councils are increasingly
pressured to deploy next generation CCTV networks to protect & safeguard property
and, more importantly, people. With these new demands, new issues and challenges arise
for CCTV network operators who are forced into a difficult trade off between price vs.
security, quality and reliability, often having to sacrifice one for another.
Capacity: HD Video Needs HD Backhaul
CCTV has come a long way from the earliest
known use stemming from Germany in 1942 used
to monitor the testing of rockets consisting of a
simple camera to monitor system with no
recording. VCR recording succeeded this in the
1980’s followed by the digital age in the early
2000’s which saw the VCR replaced by the DVR
recording onto a hard drive rapidly boosting the
amount of video that could be recorded. CCTV
installers have kept to analogue for as long as
possible due to tradition and fear of IP, but now with HD video quality and anytime cloud
access becoming the de-facto standards, a new generation of CCTV installers are
winning many of the contracts with IP previously held by analogue. For an IP, HD and
cloud based CCTV network, a reliable backhaul method is paramount to delivering
patch-less footage to the NVR. Fibre, of course, is preferable however as discussed later
in this whitepaper is often not simple or cost effective to deploy.
Using proprietry wireless
backhaul technology specifically
engineered for CCTV ensures that
an installer gets the financial
benfits of a wireless system
without comprimising on quality
still achieving fibre performance”
Using Wireless for CCTV Backhaul
t: 0333 1212 100 w: www.purdi.com e: [email protected]
Security: without Compromising Quality
CCTV data must also be secure, especially when concerning local government, blue light,
ANPR, traffic light management or any other critical applications. Often to save CAPEX
cost, encryption is overlooked or WiFi based wireless backhaul is used leaving open
invitations to a security hack or data breach. A security hack or data breach is costly to fix
involving huge human and financial resources not to the mention down time and private
information potentially leaked to people. With newly active hacking groups, or
“hacktivists”, targeting CCTV networks more and more in a bid to disrupt governmental
operations, security has now has become an equal deciding factor when planning a
network.
The University of Michigan published a paper1 in which they describe how they gained
control of an entire traffic light system controlling almost 100 intersections in an
unnamed Michigan city. The vulnerability came from the WiFi based backhaul used for
the network which was found to be “visible from standard laptops and smart-phones”
enabling the University to gain control quickly and easily.
“Operation CCTV”
The UK arm of “hacktivist” group
Anonymous urges members in a
YouTube video2 to hack the UK
government and local authorities CCTV
network with WiFi based & unencrypted
backhaul as an easy entry point.
Using Wireless for CCTV Backhaul
t: 0333 1212 100 w: www.purdi.com e: [email protected]
Security threats, a hot press topic since 2013, are only increasing leaving tarnished
reputations to the names of corporations, councils and governments. Ensuring the
highest level of security is achieved using AES 128 or 256bit encryption which
superseded DES encryption. Such levels of encryption are available for both wired and
wireless communications however an added layer of security is introduced with wireless
through frequency.
With wireless, by using either a licensed (6 - 50GHz), millimetre wave (60, 70 & 80GHz)
or a proprietary based 5GHz radio, network operators can be further assured. For a
successful intrusion, a hacker would have to purchase a radio receiver on the same
frequency, align it to intercept the radio signal and then hack past the AES overlay which
considering that the 60GHz beam-width is only 1o wide, may take a while.
Affordability: Fibre is Reliable but not Financially Viable
Fibre is often looked at as the most reliable,
resilient and high quality choice of connection
available for CCTV camera to DVR/control room
backhaul. Fibre however is often not a real-world
choice due to security, location, price and lead
time. As well as the high reliability fibre brings, it is
also presents challenges for CCTV networks.
One of the main drawbacks to fibre is the cost to
deploy, maintain and replace. Not only do fibre networks have to be dug from scratch
avoiding listed buildings, electricity lines and roads, they also have to be replaced every
4-8 years when bandwidth requirements of the cameras multiply. With the recent mass
adoption of HD video and the newly introduced 4K resolution, bandwidth requirements
are destined to increase. Fibre can also take weeks to be laid and configured taking up
large amounts of project management time delaying other CCTV project work.
Siklu (60, 70 & 80GHz),
Cambium Networks
(proprietry 5GHz), Repeatit
(proprietry 5GHz) and
Ceragon (licensed)
Using Wireless for CCTV Backhaul
t: 0333 1212 100 w: www.purdi.com e: [email protected]
Conclusion: Wireless, too good to be true?
Using proprietary & unlicensed wireless backhaul technology specifically engineered for
CCTV ensures that an installer gets the financial benefits of a wireless system without
compromising on quality still achieving fibre performance. When deploying a
combination of proprietary wireless equipment spread across different frequencies and
capacity capabilities, a low-cost fibre-like performing wireless backhaul CCTV network
can be deployed.
By using next generation backhaul manufacturers such as Repeatit, Siklu, Ceragon &
Cambium Networks, CCTV installers benefit from 5 key areas: Security, Capacity,
Simplicity, Scalability and Affordability. Purdicom provides partners with CCTV tender
support, pre-configuration and installation assistance for customers planning a wireless
CCTV network.
Purdicom Partner Case Study: Aberdeen Harbour
The harbour wanted to deliver CCTV backhaul to
reliably deliver data from camera to the
NVR/control room and needed the installation to
not disrupt any day-to-day operations which left
wireless as the only option. Through a CCTV partner
Purdicom supplied wireless CCTV backhaul to
Aberdeen Harbour the UK’s largest port serving the
North Sea oil and gas industry. The harbour used Siklu EtherHaul millimetre wave
wireless to upgrade its CCTV recording capability with a future-proof solution.