JPH02141138U - - Google Patents
Info
- Publication number
- JPH02141138U JPH02141138U JP4958789U JP4958789U JPH02141138U JP H02141138 U JPH02141138 U JP H02141138U JP 4958789 U JP4958789 U JP 4958789U JP 4958789 U JP4958789 U JP 4958789U JP H02141138 U JPH02141138 U JP H02141138U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- circuit
- detection circuit
- input terminals
- main relay
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Transmitters (AREA)
- Circuits Of Receivers In General (AREA)
Description
第１図はこの考案に係るリレー切換回路の実施
例を示し、第１図は回路図である。第２図は従来
例の回路図である。
主な符号の説明、１……リレー切換ユニツト、
２……リレーユニツト、３……パワー検出用分配
器、４……パワー検出回路、５……リレー切換制
御回路、６，７……送信機。
FIG. 1 shows an embodiment of the relay switching circuit according to this invention, and FIG. 1 is a circuit diagram. FIG. 2 is a circuit diagram of a conventional example. Explanation of main symbols, 1... Relay switching unit,
2... Relay unit, 3... Power detection distributor, 4... Power detection circuit, 5... Relay switching control circuit, 6, 7... Transmitter.
Claims (1)
入力端と、２つの入力端のいずれかを選択するメ
インリレーと、このメインリレーの接点間に並列
に設けられたサブリレーと、前記メインリレーと
サブリレーとを切換えるリレー制御回路とからな
り２台の送信機の出力信号は同軸ケーブルを介し
て前記入力端に導かれるようにしたリレー切換回
路において、 前記入力端には送信機の同軸ケーブルを介して
直流分を重畳させたことを特徴とするリレー切換
回路。 ２ ２つの入力端にはそれぞれの直流分を検出す
るための直流検出回路を接続し、出力端はパワー
検出回路を接続し、前記直流検出回路とパワー検
出回路の検出結果に基づきリレー制御回路はメイ
ンリレーとサブリレーとを制御するように構成し
たことを特徴とする請求項１記載のリレー切換回
路。[Claims for Utility Model Registration] 1. Two input terminals that receive output signals from two transmitters, a main relay that selects one of the two input terminals, and a main relay that is provided in parallel between the contacts of the main relay. and a relay control circuit for switching between the main relay and the sub-relay, and the relay switching circuit is configured such that the output signals of the two transmitters are guided to the input end via a coaxial cable. is a relay switching circuit characterized by superimposing DC components via the transmitter's coaxial cable. 2 A DC detection circuit for detecting each DC component is connected to the two input terminals, a power detection circuit is connected to the output terminal, and the relay control circuit operates based on the detection results of the DC detection circuit and the power detection circuit. 2. The relay switching circuit according to claim 1, wherein the relay switching circuit is configured to control a main relay and a sub-relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4958789U JPH02141138U (en) | 1989-04-28 | 1989-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4958789U JPH02141138U (en) | 1989-04-28 | 1989-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02141138U true JPH02141138U (en) | 1990-11-27 |
Family
ID=31567406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4958789U Pending JPH02141138U (en) | 1989-04-28 | 1989-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02141138U (en) |
-
1989
- 1989-04-28 JP JP4958789U patent/JPH02141138U/ja active Pending
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