JPS63158043U - - Google Patents
Info
- Publication number
- JPS63158043U JPS63158043U JP5178087U JP5178087U JPS63158043U JP S63158043 U JPS63158043 U JP S63158043U JP 5178087 U JP5178087 U JP 5178087U JP 5178087 U JP5178087 U JP 5178087U JP S63158043 U JPS63158043 U JP S63158043U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- switching contact
- input
- relay
- loop
- 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)
Description
第１図は本考案によるループ接続伝送装置用端
末ユニツトの一実施例を示す主要部結線図、第２
図はループ接続伝送装置の概要を示すブロツク図
である。
２ａ：端末ユニツト、３ａ〜３ｇ：信号電線、
４ａ，４ｂ：入力端子、５ａ，５ｂ：出力端子、
６：入力回路、８：出力回路、７：交信制御部、
９：リレー、１０ａ，１０ｂ：リレーの切換接点
、１１ａ，１１ｂ，１２ｂ，１２ｂ：リレーの被
切換接点。
Fig. 1 is a main part wiring diagram showing one embodiment of a terminal unit for a loop connection transmission device according to the present invention, and Fig. 2
The figure is a block diagram showing an outline of a loop connection transmission device. 2a: terminal unit, 3a to 3g: signal wire,
4a, 4b: input terminal, 5a, 5b: output terminal,
6: input circuit, 8: output circuit, 7: communication control section,
9: Relay, 10a, 10b: Relay switching contact, 11a, 11b, 12b, 12b: Relay switching contact.
Claims (1)
端子を有する出力回路とを備えた複数の端末ユニ
ツトを信号電線でループ接続したループ接続信号
伝送装置において、各端末ユニツトに２極切換接
点を有し駆動電圧が低下すると動作して切換接点
を切換えるリレーを設け、このリレーの２極切換
接点を前記入力端子または出力端子に接続し、こ
の切換接点に対する被切換接点を入力部と出力部
とにそれぞれ接続し、前記リレーの動作により切
換接点を切換えてその端末ユニツトをループから
切り離し信号をバイパスさせることを特徴とする
ループ接続信号伝送装置。 (2) 実用新案登録請求の範囲第１項記載のルー
プ接続信号伝送装置において、各端末ユニツトの
リレーは各端末ユニツトの故障時に動作して切換
接点を切換えることを特徴とするループ接続信号
伝送装置。[Claims for Utility Model Registration] (1) In a loop-connected signal transmission device in which a plurality of terminal units each having an input circuit having an input terminal and an output circuit having an output terminal are connected in a loop by a signal wire, each terminal unit A relay is provided which has a two-pole switching contact and operates to switch the switching contact when the driving voltage decreases, and the two-pole switching contact of this relay is connected to the input terminal or output terminal, and the switched contact for this switching contact is connected to the input terminal or the output terminal. 1. A loop connection signal transmission device, which is connected to an input section and an output section, and is characterized in that the terminal unit is connected to an input section and an output section, and a switching contact is switched by the operation of the relay to disconnect the terminal unit from the loop and bypass the signal. (2) The loop connection signal transmission device according to claim 1, wherein the relay of each terminal unit operates to switch the switching contact when each terminal unit fails. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5178087U JPS63158043U (en) | 1987-04-06 | 1987-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5178087U JPS63158043U (en) | 1987-04-06 | 1987-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63158043U true JPS63158043U (en) | 1988-10-17 |
Family
ID=30876358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5178087U Pending JPS63158043U (en) | 1987-04-06 | 1987-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63158043U (en) |
-
1987
- 1987-04-06 JP JP5178087U patent/JPS63158043U/ja active Pending
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