GR3018643T3 - Device for connecting additional elements to an existing alarm line - Google Patents

Device for connecting additional elements to an existing alarm line

Info

Publication number
GR3018643T3
GR3018643T3 GR950403691T GR950403691T GR3018643T3 GR 3018643 T3 GR3018643 T3 GR 3018643T3 GR 950403691 T GR950403691 T GR 950403691T GR 950403691 T GR950403691 T GR 950403691T GR 3018643 T3 GR3018643 T3 GR 3018643T3
Authority
GR
Greece
Prior art keywords
line
devices
polling
mpl
coupler
Prior art date
Application number
GR950403691T
Other languages
Greek (el)
Inventor
Otto Walter Dipl-Ing Moser
Original Assignee
Siemens Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of GR3018643T3 publication Critical patent/GR3018643T3/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Communication Control (AREA)

Abstract

In an emergency alarm system operating according to the chain synchronisation principle, the devices (El to En) are addressed automatically by their disposition on the line (MPL). Data are exchanged between the individual devices (El to En) and the central unit (Z) with the cyclic polling of a central unit (Z). At least one coupling device (T-coupler TK) is inserted in the primary alarm line (MPL) in any location between two devices. Further devices (E(n+l)) are connected to the coupler device (TK) via a spur line which forms an additional primary alarm line (MPLS). The coupler device (TK) has an electronic measuring and switching system (MSE) which controls a switching device, e.g. at least one line switch (LS1), which delays the polling of the spur line until all devices (El to En) of the primary alarm line (MPL) are polled, where the coupler device (TK) detects the polling of the last device (En) and then connects the spur line (MPLS) for further polling.
GR950403691T 1990-04-03 1996-01-11 Device for connecting additional elements to an existing alarm line GR3018643T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90106374A EP0450119B1 (en) 1990-04-03 1990-04-03 Device for connecting additional elements to an existing alarm line

Publications (1)

Publication Number Publication Date
GR3018643T3 true GR3018643T3 (en) 1996-04-30

Family

ID=8203854

Family Applications (1)

Application Number Title Priority Date Filing Date
GR950403691T GR3018643T3 (en) 1990-04-03 1996-01-11 Device for connecting additional elements to an existing alarm line

Country Status (6)

Country Link
EP (1) EP0450119B1 (en)
AT (1) ATE132996T1 (en)
DE (1) DE59010050D1 (en)
DK (1) DK0450119T3 (en)
ES (1) ES2081865T3 (en)
GR (1) GR3018643T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6906616B1 (en) 1995-03-20 2005-06-14 Wheelock, Inc. Apparatus and method for synchronizing visual/audible alarm units in an alarm system
US5608375A (en) 1995-03-20 1997-03-04 Wheelock Inc. Synchronized visual/audible alarm system
DE10240650B3 (en) * 2002-09-03 2004-02-26 Siemens Gebäudesicherheit GmbH & Co. oHG Detector addressing method for alarm detection circuit has detector addresses assigned beginning from one or other alarm centre terminal
DE102009050692B4 (en) * 2009-10-26 2011-12-01 Phoenix Contact Gmbh & Co. Kg Security communication system for signaling system states

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2533382C2 (en) * 1975-07-25 1980-07-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method and device for the transmission of measured values in a fire alarm system
DE3008450C2 (en) * 1980-03-05 1986-09-18 Georg Prof. Dr. 8012 Ottobrunn Färber Sequential transmission system for addressless connection of several participants to a control center
CH664637A5 (en) * 1982-04-28 1988-03-15 Cerberus Ag METHOD FOR TRANSMITTING MEASURED VALUES IN A MONITORING SYSTEM.
GB8431883D0 (en) * 1984-12-18 1985-01-30 Gent Ltd Transmission system

Also Published As

Publication number Publication date
ES2081865T3 (en) 1996-03-16
DK0450119T3 (en) 1996-02-26
EP0450119B1 (en) 1996-01-10
EP0450119A1 (en) 1991-10-09
ATE132996T1 (en) 1996-01-15
DE59010050D1 (en) 1996-02-22

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