JPH041549B2 - - Google Patents

Info

Publication number
JPH041549B2
JPH041549B2 JP57086506A JP8650682A JPH041549B2 JP H041549 B2 JPH041549 B2 JP H041549B2 JP 57086506 A JP57086506 A JP 57086506A JP 8650682 A JP8650682 A JP 8650682A JP H041549 B2 JPH041549 B2 JP H041549B2
Authority
JP
Japan
Prior art keywords
line
signal
detection means
relay
alarm
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
JP57086506A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58204665A (ja
Inventor
Shigeru Niimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Secom Co Ltd
Original Assignee
Secom Co Ltd
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 Secom Co Ltd filed Critical Secom Co Ltd
Priority to JP57086506A priority Critical patent/JPS58204665A/ja
Publication of JPS58204665A publication Critical patent/JPS58204665A/ja
Publication of JPH041549B2 publication Critical patent/JPH041549B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP57086506A 1982-05-24 1982-05-24 回線断線検出警報装置を有する異常通報装置 Granted JPS58204665A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57086506A JPS58204665A (ja) 1982-05-24 1982-05-24 回線断線検出警報装置を有する異常通報装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57086506A JPS58204665A (ja) 1982-05-24 1982-05-24 回線断線検出警報装置を有する異常通報装置

Publications (2)

Publication Number Publication Date
JPS58204665A JPS58204665A (ja) 1983-11-29
JPH041549B2 true JPH041549B2 (enrdf_load_stackoverflow) 1992-01-13

Family

ID=13888861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57086506A Granted JPS58204665A (ja) 1982-05-24 1982-05-24 回線断線検出警報装置を有する異常通報装置

Country Status (1)

Country Link
JP (1) JPS58204665A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60242759A (ja) * 1984-05-17 1985-12-02 Matsushita Electric Ind Co Ltd 回線断線検出装置
JP2633247B2 (ja) * 1987-03-17 1997-07-23 松下電工株式会社 遠隔監視制御システム
JP2519290Y2 (ja) * 1988-10-25 1996-12-04 矢崎総業株式会社 通信モニター付き通信用コントローラ
JP2005194063A (ja) * 2004-01-08 2005-07-21 Tadaaki Ogata 避難室機能付きエレベーター

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539485B2 (enrdf_load_stackoverflow) * 1972-03-25 1978-04-06
JPS58129598A (ja) * 1982-01-27 1983-08-02 日本電気株式会社 防災・防犯方式

Also Published As

Publication number Publication date
JPS58204665A (ja) 1983-11-29

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