JPS58141651U - Protection circuit in multidrop transmission circuit - Google Patents
Protection circuit in multidrop transmission circuitInfo
- Publication number
- JPS58141651U JPS58141651U JP3892282U JP3892282U JPS58141651U JP S58141651 U JPS58141651 U JP S58141651U JP 3892282 U JP3892282 U JP 3892282U JP 3892282 U JP3892282 U JP 3892282U JP S58141651 U JPS58141651 U JP S58141651U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- electromagnetic relay
- transmission path
- line
- line driver
- 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
- Small-Scale Networks (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図は従来例のブロック図、第２図は本考案の一実施
例のブロック図である。
１・・・・・・伝送路、２・・・・・・ライントライバ
回路、２１・・・・・・出力回路、２２・・・・・・Ｅ
ＮＡＢＬＥ制御回路、２３・・・・・・リレー、２４・
・・・・・コイル、２５・・・・・・常開接点。
補正 昭５７．４．２７
実用新案登録請求の範囲を次のように補正する。
Ｏ実用新案登録請求の範囲FIG. 1 is a block diagram of a conventional example, and FIG. 2 is a block diagram of an embodiment of the present invention. 1...Transmission line, 2...Line driver circuit, 21...Output circuit, 22...E
NABLE control circuit, 23...Relay, 24.
...Coil, 25...Normally open contact. Amendment April 27, 1982 The scope of claims for utility model registration is amended as follows. O Scope of utility model registration request
Claims (1)
イントライバ回路の出力回路の出力端子を前記伝送路の
ラインに直接接続してなるマルチドロップ伝送回路にお
いて、前記ライントライバ回路の各々に電磁継電器を設
け、この電磁継電器のコイルに前記出力回路に供給する
電源電圧を印加するとともに、この電磁継電器の常開接
点を前記出力回路の出力端子と前記伝送路のラインとの
間に挿入してなる保護回路。In a multi-drop transmission circuit in which a plurality of line driver circuits are provided on one transmission path, and an output terminal of an output circuit of each line driver circuit is directly connected to a line of the transmission path, each of the line driver circuits is provided with an electromagnetic relay, a power supply voltage to be supplied to the output circuit is applied to the coil of the electromagnetic relay, and a normally open contact of the electromagnetic relay is inserted between the output terminal of the output circuit and the line of the transmission path. protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3892282U JPS58141651U (en) | 1982-03-18 | 1982-03-18 | Protection circuit in multidrop transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3892282U JPS58141651U (en) | 1982-03-18 | 1982-03-18 | Protection circuit in multidrop transmission circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58141651U true JPS58141651U (en) | 1983-09-24 |
Family
ID=30050232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3892282U Pending JPS58141651U (en) | 1982-03-18 | 1982-03-18 | Protection circuit in multidrop transmission circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58141651U (en) |
-
1982
- 1982-03-18 JP JP3892282U patent/JPS58141651U/en active Pending
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