TW322565B - Alarm reporting apparatus - Google Patents

Alarm reporting apparatus Download PDF

Info

Publication number
TW322565B
TW322565B TW086102847A TW86102847A TW322565B TW 322565 B TW322565 B TW 322565B TW 086102847 A TW086102847 A TW 086102847A TW 86102847 A TW86102847 A TW 86102847A TW 322565 B TW322565 B TW 322565B
Authority
TW
Taiwan
Prior art keywords
line
current
measures
telephone line
telephone
Prior art date
Application number
TW086102847A
Other languages
English (en)
Chinese (zh)
Inventor
Kenichi Furukawa
Satoshi Matsumoto
Original Assignee
Secom Kk
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 Kk filed Critical Secom Kk
Application granted granted Critical
Publication of TW322565B publication Critical patent/TW322565B/zh

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
TW086102847A 1996-09-19 1997-03-08 Alarm reporting apparatus TW322565B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24803896A JP3544797B2 (ja) 1996-09-19 1996-09-19 異常通報装置

Publications (1)

Publication Number Publication Date
TW322565B true TW322565B (en) 1997-12-11

Family

ID=17172279

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086102847A TW322565B (en) 1996-09-19 1997-03-08 Alarm reporting apparatus

Country Status (7)

Country Link
JP (1) JP3544797B2 (ja)
KR (1) KR100668991B1 (ja)
CN (1) CN1119775C (ja)
AU (1) AU722707B2 (ja)
MY (1) MY125066A (ja)
SG (1) SG54475A1 (ja)
TW (1) TW322565B (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4504241B2 (ja) * 2005-04-01 2010-07-14 株式会社ナカヨ通信機 相手応答自動検出方法および相手応答自動検出装置
JP6468064B2 (ja) * 2015-05-11 2019-02-13 株式会社リコー 通信制御装置、通信装置、画像形成装置、通信制御装置の制御プログラム
US10382312B2 (en) * 2016-03-02 2019-08-13 Fisher-Rosemount Systems, Inc. Detecting and locating process control communication line faults from a handheld maintenance tool
JP7527098B2 (ja) * 2019-03-29 2024-08-02 能美防災株式会社 火災報知システム
CN110753163B (zh) * 2019-10-28 2021-05-18 上海市共进通信技术有限公司 用于光网络终端voip功能模块的保护装置及其方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968096A (ja) * 1982-10-12 1984-04-17 東京綜合警備保障株式会社 加入回線の断線監視装置
US4737776A (en) * 1986-08-07 1988-04-12 Wallace Wireman Circuit for detecting cut telephone service line and transmitting signal over telephone trunk line
US4922529A (en) * 1988-12-06 1990-05-01 Kiel David J Automatic hangup apparatus for restoring service to off-hook telephones
US4998271A (en) * 1989-08-28 1991-03-05 Venture Technologies, Inc. Telephone accessory
JP2832196B2 (ja) * 1990-11-30 1998-12-02 群馬綜合ガードシステム 株式会社 電話回線断線検知装置
JPH06223290A (ja) * 1993-01-26 1994-08-12 Atsumi Denki Kk 断線検知システム及び電話装置

Also Published As

Publication number Publication date
CN1177160A (zh) 1998-03-25
KR100668991B1 (ko) 2007-05-14
JP3544797B2 (ja) 2004-07-21
SG54475A1 (en) 1998-11-16
MY125066A (en) 2006-07-31
AU722707B2 (en) 2000-08-10
JPH1097693A (ja) 1998-04-14
AU1513997A (en) 1998-03-26
CN1119775C (zh) 2003-08-27
KR19980023992A (ko) 1998-07-06

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MM4A Annulment or lapse of patent due to non-payment of fees