Proximity smart card system.
Smaller than a credit card, the new contactless proximity smart
card from Alco Advanced Technologies, Inc., of Weston, Florida, works
with the Intelli-M System, an access control unit and integrated door
controller. Power and data transmission are provided on a single twisted
pair. Because processing power and memory are combined, savings of as
much as 50 percent can be achieved on labor and installation. The
system, which can be used for medical information, biometrics, debit,
and other applications, is scalable up to 32,000 doors.