The core of most major security systems is the Security Systems Interface (SSI) typically embodied within the control room where all the alarms, CCTV images, field communications systems and any other sub-systems are integrated.

An effective control room is much more than a location where all the systems and sub-systems of a major security installation terminate. Whilst it may be only one room, it could as easily be one of a series of rooms widely distributed over a single site, a series of adjacent installations or even facilities spread throughout a region, a country or around the world.

The SSI provides a solution which joins CCTV, perimeter protection, access control and security alarms, together with user information to a single or series of control points. Whilst at the same time the integrity of the SSI communications system which carries the alarm and other data is secure and ensures system information is equally protected.

By interrogating each sub-system's unique software protocol the SSI can ascertain that the system is secure and operating correctly; over the same network, a sub-system will alert the SSI to any alarm, fault or tamper condition that may arise.

The interface through which an operator interacts with the SSI is typically an industrial PC coupled with a Graphical User Interface (GUI). In some circumstances it may be necessary to use more than one computer with more than one GUI. ie there may be one system monitoring the alarm systems and security lighting etc whilst another system is utilised to monitor the card access control system. There could also be a need for backup systems known as redundant standby.

The SSI has the ability to interact with a number of sub-systems from many different manufacturers. It can allow an operator to control and monitor an entire system with a single mouse pointer and / or a few simple alphanumeric key strokes. Management functions can either be accessed through a password protected system function, or even be limited to an entirely separate and remote unit. Data logging of all system traffic can occur independently of any locally installed printer or logger to a remote recording device to add or ensure overall system integrity.

In summary, almost anything that remote communications technology will allow, can be provided as part of a Security Systems Interface. The GUI with its user defined maps and layouts is the hub in which the various security, access and building support functions are controlled through.