JPS6428032U - - Google Patents
Info
- Publication number
- JPS6428032U JPS6428032U JP12183587U JP12183587U JPS6428032U JP S6428032 U JPS6428032 U JP S6428032U JP 12183587 U JP12183587 U JP 12183587U JP 12183587 U JP12183587 U JP 12183587U JP S6428032 U JPS6428032 U JP S6428032U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- signal path
- main
- path
- sub
- 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
- 230000008054 signal transmission Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
Landscapes
- Optical Communication System (AREA)
- Small-Scale Networks (AREA)
Description
第１図ないし第３図は本考案によるループ接続
信号伝送装置の一実施例を示し、第１図はセンタ
ユニツトの一部と端末ユニツトの一部を示す結線
図、第２図は装置全体の構成図、第３図は信号検
出部各部の信号を示す波形図、第４図は従来のル
ープ接続信号伝送装置の一例を示す概要図、第５
図は従来のループバツク接続信号伝送装置の一例
を示す概要図である。
１：センタユニツト、２ａ〜２ｆ：端末ユニツ
ト、３ａ〜３ｇ：主信号路、３ｈ〜３ｎ：副信号
路、７：信号分岐部、８：信号路切換部、９：信
号検出部。
1 to 3 show an embodiment of the loop connection signal transmission device according to the present invention, FIG. 1 is a wiring diagram showing a part of the center unit and a part of the terminal unit, and FIG. 3 is a waveform diagram showing the signals of each part of the signal detection section, FIG. 4 is a schematic diagram showing an example of a conventional loop connection signal transmission device, and FIG.
The figure is a schematic diagram showing an example of a conventional loopback connection signal transmission device. 1: Center unit, 2a to 2f: Terminal unit, 3a to 3g: Main signal path, 3h to 3n: Sub signal path, 7: Signal branch section, 8: Signal path switching section, 9: Signal detection section.
Claims (1)
号路でループ接続したループ接続信号伝送装置に
おいて、前記主信号路と並行に副信号路を設ける
とともに、前記センタユニツトと各端末ユニツト
には前記主信号へ印加する信号と同一信号を前記
副信号路に分岐する信号分岐部を設け、前記各端
末ユニツトには前記主信号路からの正常信号の有
無を検出する信号検出部と、この信号検出部が正
常信号を検出しないと前記主信号路を前記副信号
路に切換える信号路切換部とを設けたことを特徴
とするループ接続信号伝送装置。 In a loop-connected signal transmission device in which a center unit and a plurality of terminal units are loop-connected via a main signal path, a sub-signal path is provided in parallel with the main signal path, and the center unit and each terminal unit are connected to the main signal. A signal branching section is provided to branch the same signal as the applied signal to the sub-signal path, and each terminal unit includes a signal detecting section for detecting the presence or absence of a normal signal from the main signal path, and a signal detecting section for detecting the presence or absence of a normal signal from the main signal path. A loop connection signal transmission device comprising: a signal path switching unit that switches the main signal path to the sub signal path when a signal is not detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12183587U JPS6428032U (en) | 1987-08-08 | 1987-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12183587U JPS6428032U (en) | 1987-08-08 | 1987-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6428032U true JPS6428032U (en) | 1989-02-17 |
Family
ID=31369207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12183587U Pending JPS6428032U (en) | 1987-08-08 | 1987-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6428032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0473717A1 (en) * | 1989-05-26 | 1992-03-11 | Randall K Julian | Dispensing closure. |
| US8992806B2 (en) | 2003-11-18 | 2015-03-31 | Honeywell International Inc. | Antireflective coatings for via fill and photolithography applications and methods of preparation thereof |
-
1987
- 1987-08-08 JP JP12183587U patent/JPS6428032U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0473717A1 (en) * | 1989-05-26 | 1992-03-11 | Randall K Julian | Dispensing closure. |
| JPH0825568B2 (en) * | 1989-05-26 | 1996-03-13 | ジュリアン，ランドル，ケイ | Disposable Closure and its packaging |
| EP0473717B1 (en) * | 1989-05-26 | 1997-04-02 | JULIAN, Randall K. | Dispensing closure |
| US8992806B2 (en) | 2003-11-18 | 2015-03-31 | Honeywell International Inc. | Antireflective coatings for via fill and photolithography applications and methods of preparation thereof |
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