JPS58153537U - Communication safety circuit - Google Patents
Communication safety circuitInfo
- Publication number
- JPS58153537U JPS58153537U JP5068382U JP5068382U JPS58153537U JP S58153537 U JPS58153537 U JP S58153537U JP 5068382 U JP5068382 U JP 5068382U JP 5068382 U JP5068382 U JP 5068382U JP S58153537 U JPS58153537 U JP S58153537U
- Authority
- JP
- Japan
- Prior art keywords
- fuse
- alarm circuit
- line
- circuit
- safety circuit
- 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
- Emergency Protection Circuit Devices (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図は本出願人が先に開発した通信用保安回路の基本
的構成を示す回路図、第２図はその具体的な回路構成図
、第３図は本考案の一実施例を示す通信用保安回路の具
体的な回路構成図である。
１・・・・・・三極避雷器、２１．２２・・・・・・警
報回路付きヒユーズ、３１．３２・・・・・・抵抗、４
１，４２゜５１〜５３・・・・・・金属酸化物バリタス
。Fig. 1 is a circuit diagram showing the basic configuration of a communication security circuit developed earlier by the present applicant, Fig. 2 is a specific circuit configuration diagram thereof, and Fig. 3 is a communication circuit diagram showing an embodiment of the present invention. FIG. 3 is a specific circuit configuration diagram of the safety circuit. 1... Three-pole lightning arrester, 21.22... Fuse with alarm circuit, 31.32... Resistor, 4
1,42°51-53...Metal oxide baritas.
Claims (1)
スタと、二次側のそれぞれの線路と地気間に接続された
二次アレスタと、−次側線路端子と二次側線路端子との
間に挿入された直列インピー−ダンスおよび警報回路付
きヒユーズとを備え、前記警報回路付きヒユーズの切断
によって該線路に接続される被制御機器をサージ電圧か
ら保護すると共に、該ヒユーズ断を検出信号によって警
報回路を作動させるように構成した通信用保護回路であ
って、当該警報回路付きヒユーズの出力端子と地気間、
または当該警報回路付きヒユーズの出力端子間の少なく
とも一方にサージ電圧吸収素子を接続して成ることを特
徴とする通信用保安回路。A primary arrester connected between each line on the primary side and the ground air, a secondary arrester connected between each line on the secondary side and the ground air, and a negative side line terminal and a secondary side line terminal. A series impedance and a fuse with an alarm circuit are inserted between the lines, and when the fuse with the alarm circuit is disconnected, the controlled equipment connected to the line is protected from surge voltage, and when the fuse is disconnected, a detection signal is generated. A communication protection circuit configured to activate an alarm circuit by connecting the output terminal of the fuse with the alarm circuit to the earth,
Alternatively, a communication safety circuit characterized in that a surge voltage absorbing element is connected to at least one of the output terminals of the fuse with the alarm circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5068382U JPS58153537U (en) | 1982-04-09 | 1982-04-09 | Communication safety circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5068382U JPS58153537U (en) | 1982-04-09 | 1982-04-09 | Communication safety circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58153537U true JPS58153537U (en) | 1983-10-14 |
Family
ID=30061467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5068382U Pending JPS58153537U (en) | 1982-04-09 | 1982-04-09 | Communication safety circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58153537U (en) |
-
1982
- 1982-04-09 JP JP5068382U patent/JPS58153537U/en active Pending
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