180 Digital CCTV
equipment have to be considered. Historically, manufacturers
believed having a proprietary protocol protected them from com-
petitive vendors, but today, the opposite is true. Customers are
demanding open architecture and common protocols in order to
reap the benefi ts of integration such as the cost savings incurred
from streamlined business processes and increased effi ciency.
The Security Industry Association (SIA) has identifi ed the
need to clarify systems integration and has created The Systems
Integration Industry Group (SIIG), a group of security profession-
als who are tasked with defi ning integration and establishing
methods and standards for the integration sector. The mission of
SIIG is to create an environment where members of the Security
Industry can gather to communicate the needs facing those who
are active in the integration sector.
INTEGRATED VERSUS INTERFACED
The term integrated is often used loosely to describe the result
when two or more systems are connected to work in conjunction
with each other. Systems are often described as integrated when
they should more accurately be described as interfaced. When a
system is interfaced with another system, an event on one system
can trigger an event on another system. For example, a door
opening on an access control system could trigger a camera to pan,
tilt, and zoom to achieve better coverage, or could change the
record rate of the images from the appropriate camera. See
Figure 11-1.
When a system is integrated, similar triggers have the same
effect, but the integrated system goes a step further. For example,
a card presented at an access control door may cause the appropri-
ate camera to pan, tilt, and zoom for better coverage. It might then
display a live image from that camera along with the badge
holder’s picture for verifi cation. With the interfaced system, the
video would be displayed on one monitor or workstation, while
the access control data is displayed on another. With the inte-
grated system, an operator could potentially deny access through
the door if the person in the live image presenting the card does
Integrating Digital Video with Other Technologies 181
not match the image on fi le as the authorized badge holder. See
Figure 11-2.
Thanks to advances in compression and telecommunications
technologies, remote video can combine several security systems
into one that is both competent and cost effective. The basic remote
system is composed of CCTV cameras installed at locations where
unauthorized intrusion, employee theft, or other criminal activi-
ties may occur. A video transmitter is integrated with the CCTV
system that connects to a receiving site. This connection may be
initiated by the sending or the receiving location, either manually
or by automatic alarm triggers. In the case of an alarm trigger,
strategically placed alarms will alert the receiver of security
breaches and begin providing live video, audio, and in some cases
specifi c data about the incident as it is occurring. An audio feature
can allow a receiver to announce his or her presence and inform
perpetrators that they are being observed and recorded.
Figure 11-1 Interfaced Systems Must Be Monitored Separately

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