Fire alarm system

Details Fire alarm system Fire alarm system

1994-10-18

1997-06-03

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

With particular system function

340505, 340524, 340525, 34082506, 34082508, G08B 2900

Patent

active

056359047

ABSTRACT:
A fire alarm system having terminal units in a supervisory system for supervising a fire phenomenon, a receiving portion and terminal units in a control system to be controlled by the receiving portion that is able to reduce a required space in a case of a small size system. The terminal units in the supervisory system are given individual addresses, the terminal units in the supervisory system and the receiving portion communicate with each other through the addresses, and the terminal units in the control system are connected to the receiving portion through individual signal lines.

REFERENCES:
patent: 4996518 (1991-02-01), Takahashi et al.
patent: 5017905 (1991-05-01), Yuchi
patent: 5227776 (1993-07-01), Starefoss
patent: 5493271 (1996-02-01), Kobayashi et al.

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