JPS6257842U - - Google Patents
Info
- Publication number
- JPS6257842U JPS6257842U JP14746485U JP14746485U JPS6257842U JP S6257842 U JPS6257842 U JP S6257842U JP 14746485 U JP14746485 U JP 14746485U JP 14746485 U JP14746485 U JP 14746485U JP S6257842 U JPS6257842 U JP S6257842U
- Authority
- JP
- Japan
- Prior art keywords
- signal transmission
- output
- terminal
- terminal device
- signal
- 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.)
- Granted
Links
- 230000008054 signal transmission Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Power Sources (AREA)
Description
第１図は本考案にかかる信号伝送装置のブロツ
ク図、第２図は従来例を示す回路ブロツク図であ
る。
５０……ホスト装置、５１……ホスト本体、５
２……ケーブル、５４……オープンコレクタ回路
、５６……コンパレータ、６０……信号伝送装置
、７０……端末装置、７１……端末側本体、７８
……信号入力回路。
FIG. 1 is a block diagram of a signal transmission device according to the present invention, and FIG. 2 is a circuit block diagram showing a conventional example. 50...Host device, 51...Host body, 5
2... Cable, 54... Open collector circuit, 56... Comparator, 60... Signal transmission device, 70... Terminal device, 71... Terminal side main body, 78
...Signal input circuit.
Claims (1)
続して信号の授受を行う信号伝送装置において、 ホスト本体からの信号に応じてオン／オフする
出力素子を有する信号出力回路をホスト側に設け
、 該出力素子の出力端子を信号伝送線を介して端
末装置側に設けた信号入力回路に接続すると共に
、該出力端子を端末装置側に設けた抵抗を介して
端末装置の電源に接続し、 更に該出力端子をホスト側に設けた電圧検出回
路に接続してなることを特徴とする信号伝送装置
。 (2) 前記出力素子はオープンコレクタトランジ
スタであることを特徴とする実用新案登録請求の
範囲第(1)項記載の信号伝送装置。[Claims for Utility Model Registration] (1) In a signal transmission device that connects a host device and a terminal device with a signal transmission line to send and receive signals, an output element that is turned on and off in response to a signal from the host body. A signal output circuit having a terminal device is provided on the host side, the output terminal of the output element is connected to a signal input circuit provided on the terminal device side via a signal transmission line, and the output terminal is connected via a resistor provided on the terminal device side. What is claimed is: 1. A signal transmission device, characterized in that the output terminal is connected to a power source of a terminal device, and the output terminal is connected to a voltage detection circuit provided on a host side. (2) The signal transmission device according to claim (1), wherein the output element is an open collector transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14746485U JPH057632Y2 (en) | 1985-09-27 | 1985-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14746485U JPH057632Y2 (en) | 1985-09-27 | 1985-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6257842U true JPS6257842U (en) | 1987-04-10 |
| JPH057632Y2 JPH057632Y2 (en) | 1993-02-25 |
Family
ID=31060848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14746485U Expired - Lifetime JPH057632Y2 (en) | 1985-09-27 | 1985-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH057632Y2 (en) |
-
1985
- 1985-09-27 JP JP14746485U patent/JPH057632Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH057632Y2 (en) | 1993-02-25 |
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