SE8300558L - Anordning i ett larmsystem - Google Patents

Anordning i ett larmsystem

Info

Publication number
SE8300558L
SE8300558L SE8300558A SE8300558A SE8300558L SE 8300558 L SE8300558 L SE 8300558L SE 8300558 A SE8300558 A SE 8300558A SE 8300558 A SE8300558 A SE 8300558A SE 8300558 L SE8300558 L SE 8300558L
Authority
SE
Sweden
Prior art keywords
error
line
receivers
initiated
unit
Prior art date
Application number
SE8300558A
Other languages
English (en)
Other versions
SE8300558D0 (sv
SE458565B (sv
Inventor
Borje Enblom
Bruno Forsen
Bo Stenberg
Bjorn Lexell
Original Assignee
Borje Enblom
Bruno Forsen
Bo Stenberg
Lexell Bjoern
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 Borje Enblom, Bruno Forsen, Bo Stenberg, Lexell Bjoern filed Critical Borje Enblom
Priority to SE8300558A priority Critical patent/SE458565B/sv
Publication of SE8300558D0 publication Critical patent/SE8300558D0/sv
Publication of SE8300558L publication Critical patent/SE8300558L/sv
Publication of SE458565B publication Critical patent/SE458565B/sv

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
SE8300558A 1983-02-03 1983-02-03 Anordning i ett larmsystem foeretraedesvis trygghets-, drift- och inbrottslarmsystem som innefattar en saendenhet med en automatisk uppringningsanordning SE458565B (sv)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8300558A SE458565B (sv) 1983-02-03 1983-02-03 Anordning i ett larmsystem foeretraedesvis trygghets-, drift- och inbrottslarmsystem som innefattar en saendenhet med en automatisk uppringningsanordning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8300558A SE458565B (sv) 1983-02-03 1983-02-03 Anordning i ett larmsystem foeretraedesvis trygghets-, drift- och inbrottslarmsystem som innefattar en saendenhet med en automatisk uppringningsanordning

Publications (3)

Publication Number Publication Date
SE8300558D0 SE8300558D0 (sv) 1983-02-03
SE8300558L true SE8300558L (sv) 1984-08-04
SE458565B SE458565B (sv) 1989-04-10

Family

ID=20349873

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8300558A SE458565B (sv) 1983-02-03 1983-02-03 Anordning i ett larmsystem foeretraedesvis trygghets-, drift- och inbrottslarmsystem som innefattar en saendenhet med en automatisk uppringningsanordning

Country Status (1)

Country Link
SE (1) SE458565B (sv)

Also Published As

Publication number Publication date
SE8300558D0 (sv) 1983-02-03
SE458565B (sv) 1989-04-10

Similar Documents

Publication Publication Date Title
KR860009565A (ko) 디지탈 가입자 라인 검사용 장치를 갖는 디지탈 회로망 시스템
KR920001873A (ko) 네트워크 콘트롤러
SE8503209D0 (sv) Anordning vid en porttelefonanleggning avsedd att anslutas till ett allment abonnenttelefonnet
CA1128224A (en) Call for service and continuity sensor circuit
SE8300558D0 (sv) Anordning i ett larmsystem
ATE98413T1 (de) Kleine fernsprechnebenstellenanlage, insbesondere reihenanlage.
US3801974A (en) Voltage responsive alarm system for telephone lines
JPS57145466A (en) Switchboard
JPS6455966A (en) Facsimile equipment
GB2145549A (en) Building surveillance apparatus
JPS5783951A (en) Audio response modulator and demodulator
KR890007665Y1 (ko) 모뎀에서 국설 교환기 라인오프시 사설교환기 화중음 감지에 의한 선로 차단 회로
KR870005325A (ko) 주택정보 송신장치
JPS57210747A (en) Failure retrieval system for optical digital transmission line
JPS57152265A (en) Preventing device for holding of telephone circuit by communication equipment
KR930005421A (ko) 정보통신 장치
JPS57121362A (en) Data transmission device
KR960027964A (ko) 전용선 및 공중회선 일체형 통신회로
JPS5965392A (ja) 通話線を利用した火災検出方式
JPS5514712A (en) Communication system for record information of telephone circuit
FI894393A0 (fi) Foerfarande foer oeverfoering av data.
JPS5797753A (en) Loop digital data highway device
JPS57192150A (en) Transmission and reception circuit
JPS5390707A (en) Detecting system for circuit fault
JPS57129047A (en) Loop connecting method

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8300558-7

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 8300558-7

Format of ref document f/p: F