AXESS TMC's OrangeLink system is reliable due to the high operational autonomy of the individual hardware and software elements of which it is made up. Unlike in normal on-line systems, where the functions relating to the integration and interaction of different applications is centralised on concentrators or even on the system server, in OrangeLink these functions are performed by the Field Processors within a distributed intelligence architecture. All controls applied to user authorisations, anti pass-back and reactions to events and alarms, are performed in server-independent mode thanks to the peer-to-peer communication capability of the Field Processors. Peer-to-peer communication refers to the ability of a device to interact with other devices, without needing a higher level of hierarchy to co-ordinate activities. This ability makes it possible to deliver two key functions for a security system: multi-terminal checks (anti pass-back, minimum and maximum number of people present in an area, maximum dwell time in an area, etc.) and reactions to alarms (activation of sirens or lamps, lock/unlock of areas, emergency opening, etc.). The ability of Field Processors to communicate P2P also offers major advantages in Time & Attendance systems: the possibility of safeguarding stamping records by saving them on more than one Field Processor, the possibility of controlling logical sequences of stamping (accesses => presences => canteen), and control of minimum working and rest hours, to give a few examples. |