Patent ID: 7119658

Claim:
A method of enrolling devices in a security system containing at least a first controller and at least two other devices, a first RFID reader having a read zone and a first RFID transponder, the method comprising the steps of: placing the first controller into an enrollment made; reducing the transmit power of the first RFID reader to reduce its read zone to an area proximate to the first RFID reader; placing the first RFID transponder within the reduced read zone of the first RFID reader; further reducing the transmit power of the first RFID reader, thereby narrowing the size and shape of the read zone, until the first RFID reader detects only the first RFID transponder; still further reducing the transmit power of the first RFID reader to a predetermined threshold which assures that the first RFID transponder is physically close to the first RFID reader; exchanging information between the first RFID reader and the first RFID transponder; and using the exchanged information to enroll a device in the first controller of the security system.