JPS62100036A - Data transmission terminal equipment for catv line - Google Patents

Data transmission terminal equipment for catv line

Info

Publication number
JPS62100036A
JPS62100036A JP23948285A JP23948285A JPS62100036A JP S62100036 A JPS62100036 A JP S62100036A JP 23948285 A JP23948285 A JP 23948285A JP 23948285 A JP23948285 A JP 23948285A JP S62100036 A JPS62100036 A JP S62100036A
Authority
JP
Japan
Prior art keywords
data transmission
signal
transmission terminal
power supply
equipment
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
Application number
JP23948285A
Other languages
Japanese (ja)
Inventor
Yuji Matsushita
雄二 松下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP23948285A priority Critical patent/JPS62100036A/en
Publication of JPS62100036A publication Critical patent/JPS62100036A/en
Pending legal-status Critical Current

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  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To eliminate the need for the supply of a commercial power supply to each of a data transmission terminal equipment by providing a power supply section receiving power through a 2-way CATV line to the data transmission terminal equipment CONSTITUTION:The power supply section 32 receiving power through a 2-way CATV line 2 is provided to a data transmission terminal equipment 3. A power signal (p) outputted from a feeder panel 22 of the line 2 is superimposed on a data signal (a) outputted from a data transmission central equipment 1, the result is fed to a 2-way repeater 21 and then fed to the equipment 3. When the equipment 3 receives a superimposing signal between the signals (a), (p), a distribution section 31 separates signals (a), (b), the signal (a) is outputted to a processing section 33 and the signal (p) is outputted to the power supply section 32. The power supply section 32 supplies a circuit voltage obtained through the conversion of the signal (p) to all the processing section 33 and the equipment 3. Thus, it is not required to supply the commercial power supply to each of the equipment 3.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は双方向ＣＡＴＶ回線を利用したデータ伝送シス
テムに関し、特に、双方向ＣＡＴＶ回線に接続されたデ
ータ伝送端末装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data transmission system using a bidirectional CATV line, and particularly to a data transmission terminal device connected to a bidirectional CATV line.

〔従来の技術〕[Conventional technology]

従来、この種のデータ伝送端末装置は、双方向ＣＡＴＶ
回線を信号伝送路のみに利用し、別線にて商用電源を受
電するものとなっていた。Conventionally, this type of data transmission terminal equipment is a two-way CATV
The line was used only as a signal transmission path, and commercial power was received via a separate line.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した従来のデータ伝送端末装置は、商用電源を別線
にて受電するため、停電で別線に商用電源が給電されな
くなると、データ伝送端末装置の動作が停止し、双方向
ＣＡＴＶ回線における伝送が不能になるという欠点があ
った。また商用電源をデータ伝送端末装置に供給する場
合、必ず別線によりデータ伝送端末装置個々に供給しな
ければならないという欠点があった。The conventional data transmission terminal device described above receives commercial power through a separate line, so if the commercial power is not supplied to the separate line due to a power outage, the data transmission terminal device will stop operating, and transmission over the bidirectional CATV line will be interrupted. The disadvantage was that it became impossible. Furthermore, when supplying commercial power to data transmission terminal devices, there is a drawback that it must be supplied to each data transmission terminal device through separate lines.

〔問題点を解決するための手段〕[Means for solving problems]

このような欠点を除去するために本発明は、双方向ＣＡ
ＴＶ回線により受電を行う電源部をデータ伝送端末装置
に設けるようにしたものである。In order to eliminate such drawbacks, the present invention provides bidirectional CA
A data transmission terminal device is provided with a power supply unit that receives power through a TV line.

〔作用〕[Effect]

本発明においては、データ信号、データ伝送端末装置に
電源を供給するための電力信号共に双方向ＣＡＴＶ回線
で伝送され、データ伝送端末装置の分配部で電力信号と
データ信号とに分離される。In the present invention, both the data signal and the power signal for supplying power to the data transmission terminal device are transmitted over a bidirectional CATV line, and are separated into the power signal and the data signal at the distribution section of the data transmission terminal device.

〔実施例〕〔Example〕

本発明に係わるデータ伝送端末装置の一実施例が適用さ
れたデータ伝送システムを図に示す。図において、１は
データ伝送中実装置、２は双方向ＣＡＴＶ回線、３は本
発明の一実施例としてのデータ伝送端末装置である。The figure shows a data transmission system to which an embodiment of the data transmission terminal device according to the present invention is applied. In the figure, 1 is a data transmission solid device, 2 is a bidirectional CATV line, and 3 is a data transmission terminal device as an embodiment of the present invention.

双方向ＣＡＴＶ回線２は、複数の双方向中継器２１、デ
ータ伝送端末装置３に電源を供給するために電力信号Ｐ
を双方向中継器２１に常時送出する給電盤２２、信号線
２３．２４および給電線２５から構成される。データ伝
送端末装置３は、データ信号ａと電力信号Ｐとを分離す
る分離部３１、電力信号Ｐを回路用電圧に変換する電源
部３２およびデータ信号ａを処理してデータ信号すを出
力する処理部３３から構成される。The bidirectional CATV line 2 transmits a power signal P to supply power to the plurality of bidirectional repeaters 21 and the data transmission terminal device 3.
It is composed of a power supply panel 22 that constantly sends the signal to the bidirectional repeater 21, signal lines 23 and 24, and a power supply line 25. The data transmission terminal device 3 includes a separation unit 31 that separates a data signal a and a power signal P, a power supply unit 32 that converts the power signal P into a circuit voltage, and a process that processes the data signal a and outputs a data signal S. It is composed of a section 33.

次にこのように構成された本装置の動作について説明す
る。データ伝送中実装置１は、双方向ＣＡＴＶ回線２を
介して、データ伝送端末装置３に接続されている。双方
向ＣＡＴＶ回線２の給電盤２２から出力された電力信号
Ｐは、データ伝送中実装置１から゛出力されたデータ信
号ａに重畳され、双方向中継器２１へ供給され、続いて
データ伝送端末装置３へ供給される。Next, the operation of the apparatus configured as described above will be explained. The data transmission solid device 1 is connected to a data transmission terminal device 3 via a bidirectional CATV line 2. The power signal P output from the power supply board 22 of the bidirectional CATV line 2 is superimposed on the data signal a output from the data transmission solid device 1, and is supplied to the bidirectional repeater 21, and then to the data transmission terminal. Supplied to device 3.

データ伝送端末装置３は、データ信号ａと電力信号Ｐと
の重畳信号を受信すると、分配部３１でデータ信号ａと
電力信号Ｐとを分離し、データ信号ａを処理部３３へ、
電力信号Ｐを電源部３２へ出力する。電力信号Ｐが入力
されると、電源部３２は、処理部３３およびデータ伝送
端末装置３全体に対し、電力信号Ｐを変換して得られた
回路用電圧を供給する。データ伝送中実装置１からのデ
ータ信号ａは、分配部３１で分離された後、処理部３３
で処理され、データ信号すとしてデータ伝送端末装置３
から出力される。When the data transmission terminal device 3 receives the superimposed signal of the data signal a and the power signal P, the distribution unit 31 separates the data signal a and the power signal P, and sends the data signal a to the processing unit 33.
The power signal P is output to the power supply section 32. When the power signal P is input, the power supply section 32 supplies the circuit voltage obtained by converting the power signal P to the processing section 33 and the entire data transmission terminal device 3. After the data signal a from the data transmission solid device 1 is separated by the distribution unit 31, the data signal a is separated by the processing unit 33.
and processed as a data signal by the data transmission terminal device 3.
is output from.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は、双方向ＣＡＴＶ回線から
の供給電源を受電できる機能をデータ伝送端末装置に存
することにより、データ伝送端末装置個々に商用電源の
供給を受ける必要がなく、停電保障においても、中継器
用の給電盤に対策を行えば、データ伝送端末装置全体が
保障される効果がある。As explained above, the present invention provides a data transmission terminal device with the function of receiving power supplied from a bidirectional CATV line, thereby eliminating the need for each data transmission terminal device to receive commercial power supply, and ensuring power outage guarantee. However, if measures are taken on the power supply board for the repeater, the entire data transmission terminal equipment can be guaranteed.

【図面の簡単な説明】[Brief explanation of drawings]

図は本発明に係わるデータ伝送端末装置の一実施例が適
用されたデータ伝送システムを示す系統図である。 １・・・・データ伝送中実装置、２・・・・双方向ＣＡ
ＴＶ回線、３・・・・データ伝送端末装置、２１・・・
・双方向中継器、２２・・・・給電盤、２３．２４・・
・・信号線、２５・・・・給電線、３１・・・・分配部
、３２・・・・電源部、３３・・・・処理部。The figure is a system diagram showing a data transmission system to which an embodiment of the data transmission terminal device according to the present invention is applied. 1... Data transmission solid device, 2... Bidirectional CA
TV line, 3... Data transmission terminal device, 21...
・Two-way repeater, 22...Power supply board, 23.24...
... signal line, 25 ... power supply line, 31 ... distribution section, 32 ... power supply section, 33 ... processing section.

Claims (1)

【特許請求の範囲】[Claims] 双方向ＣＡＴＶ回線を利用したデータ伝送システムのデ
ータ伝送端末装置において、前記双方向ＣＡＴＶ回線に
より受電を行う電源部を備えたことを特徴とするデータ
伝送端末装置。What is claimed is: 1. A data transmission terminal device for a data transmission system using a bidirectional CATV line, characterized in that the data transmission terminal device comprises a power supply unit that receives power through the bidirectional CATV line.
JP23948285A 1985-10-28 1985-10-28 Data transmission terminal equipment for catv line Pending JPS62100036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23948285A JPS62100036A (en) 1985-10-28 1985-10-28 Data transmission terminal equipment for catv line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23948285A JPS62100036A (en) 1985-10-28 1985-10-28 Data transmission terminal equipment for catv line

Publications (1)

Publication Number Publication Date
JPS62100036A true JPS62100036A (en) 1987-05-09

Family

ID=17045429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23948285A Pending JPS62100036A (en) 1985-10-28 1985-10-28 Data transmission terminal equipment for catv line

Country Status (1)

Country Link
JP (1) JPS62100036A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402178A (en) * 1993-07-19 1995-03-28 Acer Peripherals, Inc. Apparatus for extracting a signal without external power supply
JP2010288152A (en) * 2009-06-12 2010-12-24 Yagi Antenna Co Ltd Retransmission system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402178A (en) * 1993-07-19 1995-03-28 Acer Peripherals, Inc. Apparatus for extracting a signal without external power supply
JP2010288152A (en) * 2009-06-12 2010-12-24 Yagi Antenna Co Ltd Retransmission system

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