Home' RTCA Documents for Review : DO-230H FRAC Contents 247
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In recent years, a number of significant developments in security requirements and in communication
technology have occurred that impact the design of an Integrated Security System for Airports (ISSA),
Stricter and more extensive security measures, with greater video surveillance coverage.
The introduction by TSA of FIPS 201-based biometric credentials and access control cards for the
Emergence of an information-centric model for airport security which connects all stakeholders
and is able to deliver content-sensitive incident information to responders over both wired and
wireless links and to interface with Airport Police Dispatch Centers.
Integration of alarm data, video imagery, and geographic information to enhance alarm
Greater situational awareness capability for the SOC to enhance its ability to manage incidents.
Integration of IDS, PACS, CCTV and other security functions with the airport IT network and cable
plant, along with an increased emphasis on network security.
The dominance of IP-based communications, which are rapidly replacing older RS-485 and similar
ISSA designs must now be compatible with legacy IPv4 products, and should also provide for
compatibility with IPv6 products coming to market.
The development of converters to permit the reuse of legacy protocol and communications physical
Continuing performance improvements in digital equipment and software so that video and voice
can effectively and practically be transmitted over a network.
The ISSA communications network transmits information from surveillance sensors, access control
devices, and assessment cameras to the SOC. It may also be appropriate to share some of this information
with other stakeholders involved in incident management, such as a Police Dispatch Center and the Airport
Operations Center (AOC). Identifying what information is required by each party, and how to best provide
for information sharing (including identification and authorization), which are major tasks when the SOC
is designed, and providing networks which ensure rapid, reliable, and where needed redundant transmission
of data resistant to compromise.
A number of technology issues are relevant to implementing the communication network, such as
bandwidth analysis, communications security, network topology, communication redundancy, transmission
modes or protocols, reserve capacity, and transmission media conducive to rapid fault detection and repair.
The communication medium for ISSA can be any one (or combination) of the following:
Network copper cables, also known as Structured Cabling. Metallic hardwire and cables that are
suitable for transmitting analog and digital signals, including voice, data, and video, such as RS-
Fiber optic cables for the IT backbone and for point-to-point cabling for video cameras and other
high bandwidth devices.
Analog or digital data circuits direct or leased from commercial carriers.
Wireless communications medium, including WiFi frequencies, cellular frequencies, and infrared
When using physical communications mediums, the ISSA owner should ensure that the cables selected are
in compliance with established EIA/TIA and IEEE industry standards and replacement materials are
commercially available for the predicted lifetime of the system. Wherever applicable, system providers
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