JPS6074361U - Disconnection detection circuit for digital signal transmission circuit - Google Patents
Disconnection detection circuit for digital signal transmission circuitInfo
- Publication number
- JPS6074361U JPS6074361U JP16612183U JP16612183U JPS6074361U JP S6074361 U JPS6074361 U JP S6074361U JP 16612183 U JP16612183 U JP 16612183U JP 16612183 U JP16612183 U JP 16612183U JP S6074361 U JPS6074361 U JP S6074361U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- digital signal
- signal transmission
- disconnection detection
- detection 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
- Dc Digital Transmission (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、本考案断線検出回路の実施例を示す回路図、
第２図は、低域通過フィルタ回路の一例を示す回路図、
第３図、第４図は夫々本考案回路の異なる実施例を示す
回路図である。
２・・・・・・送信回路、Ｘｓ・・・・・・送信する信
号、４・・・・・・受信回路、３・・・・・・伝送ケー
ブル、Ｘｒ・・・・・・受信する信号、Ｓｃ・・・・・
・断線検出信号、１６・・・・・・低域通過フィルタ。FIG. 1 is a circuit diagram showing an embodiment of the disconnection detection circuit of the present invention;
FIG. 2 is a circuit diagram showing an example of a low-pass filter circuit,
FIGS. 3 and 4 are circuit diagrams showing different embodiments of the circuit of the present invention, respectively. 2...Transmission circuit, Xs...Signal to send, 4...Reception circuit, 3...Transmission cable, Xr...Receive Signal, Sc...
- Disconnection detection signal, 16...Low pass filter.
Claims (1)
、前記差動電流出力回路の出力である差動電流信号を伝
送する、伝蓬ケーブルと、前記伝送ケーブルに接続され
、前記差動電流信号の正方向に応答するフォトカプラと
負方向に応答するフォトカプラを有しておりこれらのフ
ォトカプラの出力側を直列に接続し、この接続点の電位
により、正方向、負方向いずれの方向にも電流が流れて
いないことを検出する、ディジタル信号伝送回路の断線
検出回路。a digital signal transmission circuit including a differential current output circuit; a transmission cable that transmits a differential current signal that is the output of the differential current output circuit; and a transmission cable that is connected to the transmission cable and that transmits the differential current signal. It has a photocoupler that responds in the positive direction and a photocoupler that responds in the negative direction, and the output sides of these photocouplers are connected in series. A disconnection detection circuit for digital signal transmission circuits that detects when current is not flowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16612183U JPS6074361U (en) | 1983-10-28 | 1983-10-28 | Disconnection detection circuit for digital signal transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16612183U JPS6074361U (en) | 1983-10-28 | 1983-10-28 | Disconnection detection circuit for digital signal transmission circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6074361U true JPS6074361U (en) | 1985-05-24 |
Family
ID=30363766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16612183U Pending JPS6074361U (en) | 1983-10-28 | 1983-10-28 | Disconnection detection circuit for digital signal transmission circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6074361U (en) |
-
1983
- 1983-10-28 JP JP16612183U patent/JPS6074361U/en active Pending
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