Fire sensor

Details Fire sensor Fire sensor

1985-09-25

1989-04-18

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specified housing

200 11R, 340505, 34082554, G08B 2300

Patent

active

048231185

ABSTRACT:
A fire sensor of the polling type in which plural fire sensors connected via a common line to a central monitoring point are called in sequence in accordance with individual addresses, wherein an address setting section in the fire sensors is improved. Address setting rotary digital code switches are installed on a printed circuit board on which the other components of the sensor are mounted, and holes for accessing the rotary code switches are formed in a body case in positions confronting the switches.

REFERENCES:
patent: 4392030 (1983-07-01), Buss
patent: 4538142 (1985-08-01), Hamilton et al.
patent: 4555695 (1985-11-01), Machida et al.
patent: 4581606 (1986-04-01), Mallory
patent: 4616223 (1986-10-01), Naaijer

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