Enhanced group addressing system

Details Enhanced group addressing system Enhanced group addressing system

1994-05-23

1996-07-23

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

34082554, 34082508, H04Q 100

Patent

active

055393896

ABSTRACT:
An apparatus and a method for addressing a plurality of spaced-apart detectors or control units in a multiple zone detection system shortens the time needed for a centrally located control element to communicate with the detectors or units. The control element addresses a plurality of units simultaneously by means of a serial bidirectional communications line. Information can be transmitted time serially to each of the addressed units which is associated with a respective time interval. The addressed units can return, time serially, on the serial communication line a plurality of indicia. The control element associates each indicium with a respective detector by means of the indicium's position relative to other returned indicia.

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