JPS61174241U - - Google Patents
Info
- Publication number
- JPS61174241U JPS61174241U JP5698785U JP5698785U JPS61174241U JP S61174241 U JPS61174241 U JP S61174241U JP 5698785 U JP5698785 U JP 5698785U JP 5698785 U JP5698785 U JP 5698785U JP S61174241 U JPS61174241 U JP S61174241U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- supply circuit
- switching
- loop
- line
- 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
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
Description
第１図は、本考案の一実施例による回線切替装
置の構成を示すブロツク図、第２図は同実施例の
切替動作を説明するための図、第３図はループ伝
送システムの構成を示す概念図、第４図は従来の
回線切替装置の構成を示すブロツク図、第５図は
同回線切替装置の切替動作を説明するための図で
ある。
１……送信信号処理回路、２……受信信号処理
回路（以上１，２は信号処理手段）、３，４……
水銀リレー（切替手段）、５……５Ｖ電源（第２
の電源回路）、６……１２Ｖ電源（第１の電源回
路）、１１……比較手段、１２……スイツチング
手段、ＳＴｉ……局、Ｖｓ……設定電圧。
FIG. 1 is a block diagram showing the configuration of a line switching device according to an embodiment of the present invention, FIG. 2 is a diagram for explaining the switching operation of the same embodiment, and FIG. 3 shows the configuration of a loop transmission system. A conceptual diagram, FIG. 4 is a block diagram showing the configuration of a conventional line switching device, and FIG. 5 is a diagram for explaining the switching operation of the same line switching device. 1... Transmission signal processing circuit, 2... Reception signal processing circuit (1 and 2 are signal processing means), 3, 4...
Mercury relay (switching means), 5...5V power supply (second
(power supply circuit), 6...12V power supply (first power supply circuit), 11...comparison means, 12...switching means, STi...station, Vs...setting voltage.
Claims (1)
電源供給する第１の電源回路と、前記回線上の信
号を処理する信号処理手段と、この信号処理手段
に電源供給する第２の電源回路とを有する局をル
ープ状に接続し、かつ、前記各電源回路をオフす
ることによつて前記切替手段がバイパス側に切替
わるようにされたループ伝送システムにおいて、
前記各電源回路オフ時に前記第２の電源回路の出
力電圧が予め設定された電圧より下がつたことを
検出する比較手段と、前記比較手段の出力によつ
て前記第１の電源回路の出力をオフするスイツチ
ング手段とを具備することを特徴とするループ伝
送システムの回線切替装置。 A switching means for switching lines, a first power supply circuit for supplying power to the switching means, a signal processing means for processing signals on the line, and a second power supply circuit for supplying power to the signal processing means. In a loop transmission system, the switching means is switched to the bypass side by connecting stations having a loop in a loop, and turning off each of the power supply circuits,
a comparison means for detecting that the output voltage of the second power supply circuit has fallen below a preset voltage when each of the power supply circuits is turned off; and an output of the first power supply circuit based on the output of the comparison means. 1. A line switching device for a loop transmission system, comprising switching means for turning off the line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5698785U JPS61174241U (en) | 1985-04-17 | 1985-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5698785U JPS61174241U (en) | 1985-04-17 | 1985-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61174241U true JPS61174241U (en) | 1986-10-30 |
Family
ID=30581103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5698785U Pending JPS61174241U (en) | 1985-04-17 | 1985-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61174241U (en) |
-
1985
- 1985-04-17 JP JP5698785U patent/JPS61174241U/ja active Pending