Global Patent Index - EP 1906371 B1

EP 1906371 B1 20111019 - Control of alarm devices

Title (en)

Control of alarm devices

Title (de)

Steuerung von Alarmvorrichtungen

Title (fr)

Contrôle de dispositif d'alarme

Publication

EP 1906371 B1 20111019 (EN)

Application

EP 07394020 A 20070920

Priority

IE 20060706 A 20060928

Abstract (en)

[origin: EP1906371A2] An alarm system comprises a plurality of alarm devices (10) interconnected by an interconnect wire (IC), and a remote control unit (1). The remote control unit (1) modulating remote control signals on an interconnect wire (IC) linking the alarm devices (10), and the alarm device control circuits (50) perform operations in response to said signals. The remote control unit (1) applies to the interconnect wire (IC) a higher voltage level than that of alarm device interconnect signals. A switch (3) causes the high-Voltage signal to be delivered on the interconnect wire (IC) by connecting the mains supply to the interconnect wire (IC) via a capacitor (C1, C2) and a diode (CR2). The alarm device control circuits (50) operate in response to a remote control signal to test or hush, the associated devices or to suppress low-battery beeps. Also, a remote control unit (1) switch (2) and a circuit (4) operate in response to a user input to short the interconnect wire (IC) to a low voltage, so that interconnect signalling of the alarm devices (10) is prevented and only a device sensing on alarm condition sounds.

IPC 8 full level

G08B 29/14 (2006.01); G08B 25/04 (2006.01)

CPC (source: EP)

G08B 17/00 (2013.01); G08B 21/14 (2013.01); G08B 25/04 (2013.01); G08B 29/123 (2013.01); G08B 29/145 (2013.01)

Citation (examination)

WO 2006044358 A2 20060427 - RANCO INC [US], et al

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1906371 A2 20080402; EP 1906371 A3 20100324; EP 1906371 B1 20111019; AT 529845 T 20111115; IE 20070675 A1 20080430; IE S20070677 A2 20080430

DOCDB simple family (application)

EP 07394020 A 20070920; AT 07394020 T 20070920; IE 20070675 A 20070920; IE S20070677 A 20070920