JPS5899949U - Automatic disconnection detection device for communication lines - Google Patents
Automatic disconnection detection device for communication linesInfo
- Publication number
- JPS5899949U JPS5899949U JP1981196464U JP19646481U JPS5899949U JP S5899949 U JPS5899949 U JP S5899949U JP 1981196464 U JP1981196464 U JP 1981196464U JP 19646481 U JP19646481 U JP 19646481U JP S5899949 U JPS5899949 U JP S5899949U
- Authority
- JP
- Japan
- Prior art keywords
- detection device
- automatic disconnection
- disconnection detection
- communication lines
- communication line
- 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.)
- Pending
Links
Landscapes
- Monitoring And Testing Of Exchanges (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案による通信回線の自動断線検出、装置を
示す説明図、第２図はその検出器を示すブロック図であ
る。
１・・・・・・電話交換局、２・・・・・・電話、３．
３′・・・・・・通信回線、４・・・・・・自動断線検
出装置、５・・・・・・検出器、６・・・・・・警報器
、７・・・・・・電圧検出回路、８・・・・・・駆動回
路、９・・・・・・電源装置、１０．１０’・・・・・
・入力線、Ｓｌ・・・・・・検出信号、Ｓ２・・・・・
・警報駆動信号。FIG. 1 is an explanatory diagram showing an apparatus for automatically detecting disconnection of a communication line according to the present invention, and FIG. 2 is a block diagram showing the detector thereof. 1...Telephone exchange, 2...Telephone, 3.
3'...Communication line, 4...Automatic disconnection detection device, 5...Detector, 6...Alarm, 7... Voltage detection circuit, 8... Drive circuit, 9... Power supply device, 10.10'...
・Input line, Sl...Detection signal, S2...
・Alarm drive signal.
Claims (1)
なったことを検出する電圧検出回路を有すると共にこの
電圧検出回路からの検出信号を受けて警報駆動信号を送
出する駆動回路を有してなる検出器と、この検出器から
の上記警報駆動信号を入力して作動する警報器とからな
る通信回線の自動断線検出装置。It has a voltage detection circuit that is connected to a communication line and detects that the voltage across the communication line has become 0 volts, and also has a drive circuit that receives a detection signal from the voltage detection circuit and sends out an alarm drive signal. An automatic disconnection detection device for a communication line, comprising: a detector; and an alarm that is activated by inputting the alarm drive signal from the detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981196464U JPS5899949U (en) | 1981-12-26 | 1981-12-26 | Automatic disconnection detection device for communication lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981196464U JPS5899949U (en) | 1981-12-26 | 1981-12-26 | Automatic disconnection detection device for communication lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5899949U true JPS5899949U (en) | 1983-07-07 |
Family
ID=30109705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981196464U Pending JPS5899949U (en) | 1981-12-26 | 1981-12-26 | Automatic disconnection detection device for communication lines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5899949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019126239A (en) * | 2018-01-19 | 2019-07-25 | 新電元工業株式会社 | Motor drive system, and signal correction method and signal correction program in motor drive system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5012693A (en) * | 1972-06-27 | 1975-02-08 |
-
1981
- 1981-12-26 JP JP1981196464U patent/JPS5899949U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5012693A (en) * | 1972-06-27 | 1975-02-08 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019126239A (en) * | 2018-01-19 | 2019-07-25 | 新電元工業株式会社 | Motor drive system, and signal correction method and signal correction program in motor drive system |
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