JPH10155006A - Line connection device - Google Patents

Line connection device

Info

Publication number
JPH10155006A
JPH10155006A JP32463496A JP32463496A JPH10155006A JP H10155006 A JPH10155006 A JP H10155006A JP 32463496 A JP32463496 A JP 32463496A JP 32463496 A JP32463496 A JP 32463496A JP H10155006 A JPH10155006 A JP H10155006A
Authority
JP
Japan
Prior art keywords
circuit
power supply
power
supply circuit
connection device
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
JP32463496A
Other languages
Japanese (ja)
Inventor
Hisaatsu Iketani
寿厚 池谷
Junichi Kato
潤一 加藤
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.)
Ando Electric Co Ltd
Original Assignee
Ando Electric Co Ltd
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 Ando Electric Co Ltd filed Critical Ando Electric Co Ltd
Priority to JP32463496A priority Critical patent/JPH10155006A/en
Publication of JPH10155006A publication Critical patent/JPH10155006A/en
Pending legal-status Critical Current

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  • Communication Control (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a line connection device that maintains a voltage hold time for a power supply interruption notice without selecting a power supply with a large capacity or using a battery. SOLUTION: A device is provided with an interface circuit 3 that interfaces another circuit 2 and a transmission line side device 12, a power supply circuit 1 that drives them, a power supply interruption detection circuit 4 that monitors an input voltage of the power supply circuit 1 and a power supply interruption transmission circuit 5 that outputs power interruption information from the power supply interruption detection circuit 4 to the interface circuit 3. In a line connection device for notifying information of that the power supply circuit 1 is put off to the transmission line side device 12, at the same time when the power supply circuit 1 is put off, the power supply circuit is disconnected except a circuit of a minimum condition required for notifying the power supply interruption information to the transmission line side device 12 so as to maintain a minimum hold time of a voltage to drive the circuit of the minimum condition.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】この発明は、例えば回線接続装置
の電源断を伝送路側装置に通知する場合に、通知するた
めの最低条件の回路のみを動作させ、最低条件の回路を
動作させるのに必要な電圧保持時間を確保する装置につ
いてのものである。
BACKGROUND OF THE INVENTION The present invention relates to a method for operating only a circuit of a minimum condition for notifying a power failure of a line connection device to a transmission line side device and operating a circuit of a minimum condition. This is for an apparatus for securing a necessary voltage holding time.

【0002】[0002]

【従来の技術】近年、データ通信網を介して、各ユーザ
間でデータ通信を行うことは一般的になっている。次
に、データ通信を行うユーザ側装置の構成を図3に示
す。図3の10は端末、11は回線接続装置、12は伝
送路側装置である。図3で、伝送路側装置12は回線接
続装置11を介して端末10と接続し、互いにデータを
送受信する。
2. Description of the Related Art In recent years, it has become common to carry out data communication between users via a data communication network. Next, FIG. 3 shows the configuration of a user device that performs data communication. In FIG. 3, reference numeral 10 denotes a terminal, 11 denotes a line connection device, and 12 denotes a transmission line side device. In FIG. 3, the transmission line side device 12 is connected to the terminal 10 via the line connection device 11, and transmits and receives data to and from each other.

【0003】回線接続装置11は、人為的に電源をオフ
にしたときに、伝送路側装置12に電源を人為的にオフ
にしたことを通知する信号を送出する。これは、回線接
続装置11自体の故障等による電源断と区別するためで
ある。
When the power is turned off artificially, the line connection device 11 sends a signal to the transmission line side device 12 to notify that the power is turned off artificially. This is for distinguishing from a power cut-off due to a failure of the line connection device 11 itself.

【0004】次に、従来技術による回線接続装置の構成
図を図2に示す。図2の11は回線接続装置、12は伝
送路側装置である。図2は図3の回線接続装置11のう
ち、電源断を伝送路側装置12に通知する機能に必要な
構成の具体的な構成図であり、電源回路1と、その他の
回路2と、インタフェース回路3と、電源断検出回路4
と、電源断送出回路5とを備える。
Next, FIG. 2 shows a configuration diagram of a conventional line connection device. In FIG. 2, reference numeral 11 denotes a line connection device, and reference numeral 12 denotes a transmission line side device. FIG. 2 is a specific configuration diagram of a configuration required for a function of notifying the transmission line side device 12 of a power cut out of the line connection device 11 of FIG. 3, and includes a power supply circuit 1, other circuits 2, and an interface circuit. 3 and power-off detection circuit 4
And a power-off sending circuit 5.

【0005】電源回路1は、外部から入力する電圧をそ
の他の回路2〜電源断送出回路5を動作させるのに必要
な電圧に変換し、各回路に供給する。その他の回路2
は、正常な状態の通信を行うためのものであり、図示を
省略した端末に接続されている。インタフェース回路3
は通信相手とのインタフェースをとる回路である。
[0005] The power supply circuit 1 converts a voltage input from the outside into a voltage required for operating the other circuits 2 to the power cutoff transmission circuit 5 and supplies the voltage to each circuit. Other circuit 2
Is for performing communication in a normal state, and is connected to a terminal not shown. Interface circuit 3
Is a circuit for interfacing with a communication partner.

【0006】電源断検出回路4は電源回路1の入力電圧
を監視する。電源断送出回路5は電源断検出回路4から
電源断情報を検出したとき、インタフェース回路3に電
源断情報を挿入する。
[0006] The power-off detection circuit 4 monitors the input voltage of the power supply circuit 1. When detecting the power-off information from the power-off detection circuit 4, the power-off sending circuit 5 inserts the power-off information into the interface circuit 3.

【0007】図2で、人為的に電源回路1の各回路への
入力電圧が遮断されると、電源断検出回路4が入力電圧
の遮断を検出し、電源断送出回路5に情報を送出する。
電源断送出回路5は、インタフェース回路3が伝送路側
装置12に電源の入力断を送信するために、インタフェ
ース回路5のあらかじめ決められた位置に電源断情報を
挿入する。
In FIG. 2, when the input voltage to each circuit of the power supply circuit 1 is cut off artificially, the power cutoff detection circuit 4 detects the cutoff of the input voltage and sends information to the power cutoff sending circuit 5. .
The power-off sending circuit 5 inserts the power-off information at a predetermined position of the interface circuit 5 so that the interface circuit 3 transmits the power-off to the transmission line side device 12.

【0008】インタフェース回路3は、電源断送出回路
5の情報を伝送路側装置12のインタフェース条件に合
わせて送出する。この時、その他の回路2は、電源回路
1の電源をオフにしたこととは無関係に、通信が正常の
時と同じ動作を行っている。
[0008] The interface circuit 3 sends out the information of the power cutoff sending circuit 5 in accordance with the interface conditions of the transmission line side device 12. At this time, the other circuits 2 perform the same operation as when communication is normal irrespective of turning off the power of the power supply circuit 1.

【0009】[0009]

【発明が解決しようとする課題】伝送路側装置12に回
線接続装置11の電源回路を人為的にオフにしたこと
は、回線接続装置が電源回路1をオフにした後に、伝送
路側装置に通知しなければならない。すなわち、電源回
路1の電圧は、オフにした瞬間に0Vになるわけではな
く、ある程度の時間をかけて徐々に0Vになるものなの
で、その保持時間を利用して、電源回路1をオフにした
とき、電源回路1の出力電圧が回線接続装置内の電源断
通知用の回路を動作させるために必要な規格範囲の入力
レベルを保持している時間内に、通知しなければならな
い。
The fact that the power supply circuit of the line connection device 11 is artificially turned off by the transmission line side device 12 is notified to the transmission line side device after the line connection device turns off the power supply circuit 1. There must be. That is, the voltage of the power supply circuit 1 does not necessarily become 0 V at the moment of turning off, but gradually becomes 0 V over a certain period of time. Therefore, the power supply circuit 1 is turned off using the holding time. At this time, it is necessary to notify the output voltage of the power supply circuit 1 within a time period in which the input level within the standard range required for operating the power supply disconnection notification circuit in the line connection device is maintained.

【0010】例えば、伝送路側装置12に通知するため
の最低保持時間を8msec以上とした場合に、この最
低保持時間を得るために、従来は、正常な状態で消費す
る電気より大きな容量を供給できる電源回路を備える
か、あるいは電池を設ける必要があった。
For example, if the minimum holding time for notifying the transmission line side device 12 is 8 msec or more, in order to obtain the minimum holding time, conventionally, a larger capacity than electricity consumed in a normal state can be supplied. It was necessary to provide a power supply circuit or a battery.

【0011】しかし、大きな容量を必要とする電源は形
状が大きく、通常の通信においては、使用効率が落ちて
しまう。また、電池を設ける場合、充電に時間がかかる
とともに寿命が短いという問題がある。この発明は、容
量の大きな電源の選択あるいは電池を使用することな
く、電源断通知のための電圧保持時間を確保する回線接
続装置を提供することを目的とする。
However, a power supply requiring a large capacity has a large shape, and the use efficiency is reduced in ordinary communication. In addition, when a battery is provided, there is a problem that it takes a long time to charge and has a short life. SUMMARY OF THE INVENTION It is an object of the present invention to provide a line connection device that secures a voltage holding time for power-off notification without selecting a power supply having a large capacity or using a battery.

【0012】[0012]

【課題を解決するための手段】この目的を達成するため
に、この発明は、伝送路側装置12と端末を接続し、電
源回路1をオフにすると電源断情報を伝送路側装置12
に通知する回線接続装置において、電源回路1がオフに
なるとともに、伝送路側装置12に電源断情報を通知す
るための最低条件の回路を除いて、電源回路1との接続
を断にする。
In order to achieve this object, according to the present invention, when the transmission line side device 12 is connected to a terminal and the power supply circuit 1 is turned off, the power cutoff information is transmitted to the transmission line side device 12.
The power supply circuit 1 is turned off and the connection with the power supply circuit 1 is cut off except for the circuit of the minimum condition for notifying the transmission line side device 12 of the power supply cutoff information.

【0013】具体的には、正常な通信を行うためのその
他の回路2と、その他の回路2を接続し、伝送路側装置
12とのインタフェースをとるインタフェース回路3
と、その他の回路2とインタフェース回路3を駆動する
電源回路1と、電源回路1により駆動され、電源回路1
の入力電圧を監視する電源断検出回路4と、電源回路1
により駆動され、電源断検出回路4からの電源断情報を
インタフェース回路3に出力する電源断送出回路5を備
え、電源回路1をオフにした情報を伝送路側装置12に
通知する回線接続装置において、電源回路1がオフにな
るとともに電源回路1とその他の回路2の接続を断に
し、インタフェース回路3、電源断検出回路4および電
源断送出回路5が駆動する電圧の最低保持時間を確保す
る。例えば、電源回路1がオフになると、電源回路1と
その他の回路2の接続を断にする切換回路6を備える。
More specifically, another circuit 2 for performing normal communication, and an interface circuit 3 for connecting the other circuit 2 and interfacing with the transmission line side device 12
And a power supply circuit 1 for driving the other circuits 2 and the interface circuit 3, and a power supply circuit 1 driven by the power supply circuit 1.
Power supply detection circuit 4 for monitoring the input voltage of
A line disconnection device which is provided with a power-off sending circuit 5 for outputting power-off information from the power-off detection circuit 4 to the interface circuit 3 and for notifying the transmission line side device 12 of information that the power supply circuit 1 is turned off. When the power supply circuit 1 is turned off, the connection between the power supply circuit 1 and the other circuits 2 is cut off, and the minimum holding time of the voltage driven by the interface circuit 3, the power-off detection circuit 4, and the power-off sending circuit 5 is secured. For example, when the power supply circuit 1 is turned off, a switching circuit 6 that disconnects the connection between the power supply circuit 1 and the other circuits 2 is provided.

【0014】[0014]

【発明の実施の形態】次に、この発明による回線接続装
置の構成図を図1に示す。図1の1は回線接続装置、2
は伝送路側装置である。回線接続装置1は、図2の回線
接続装置11の電源回路1とその他の回路2の間に切換
回路6を設けたものであり、他は同じ構成である。切換
回路6はその他の回路2に対して消費する電圧を遮断す
るための回路であり、例えば、スイッチ等に相当する。
FIG. 1 is a block diagram of a line connection device according to the present invention. 1 is a line connection device, 2
Is a transmission line side device. The line connection device 1 has a switching circuit 6 provided between the power supply circuit 1 and the other circuits 2 of the line connection device 11 in FIG. 2, and the other configuration is the same. The switching circuit 6 is a circuit for cutting off the voltage consumed for the other circuits 2 and corresponds to, for example, a switch.

【0015】図1で、回線接続装置1、伝送路側装置1
2が互いに通信中において、電源回路1の入力電圧を遮
断すると、電源断検出回路4が入力電圧の変化(遮断)
により入力断を検出し、電源断送出回路5に情報を提供
する。電源断送出回路5は、インタフェース回路3が伝
送路側装置12に電源の入力断を送信するために、イン
タフェース回路5のあらかじめ決められた位置に電源断
情報を挿入する。インタフェース回路3は、電源断送出
回路5の情報を伝送路側装置12のインタフェース条件
に合わせて送出する。
In FIG. 1, a line connection device 1 and a transmission line side device 1
When the input voltage of the power supply circuit 1 is cut off while the two are communicating with each other, the power cutoff detection circuit 4 changes (blocks) the input voltage.
To detect the input disconnection, and provide information to the power disconnection sending circuit 5. The power-off sending circuit 5 inserts the power-off information at a predetermined position of the interface circuit 5 so that the interface circuit 3 transmits the power-off to the transmission line side device 12. The interface circuit 3 sends the information of the power-off sending circuit 5 in accordance with the interface condition of the transmission line side device 12.

【0016】この時、その他の回路2は、通常の通信に
おいては必要な回路であるが、電源の入力断においては
不要な回路であり、回線接続装置1の中では最も電圧を
消費する回路である。したがって、切換回路6で電源回
路1とその他の回路2との接続を遮断し、その他の回路
2への電力の供給を遮断する。これにより、電源断通知
のための電圧保持時間が確保される。
At this time, the other circuit 2 is a circuit that is necessary for normal communication, but is unnecessary when the power is turned off, and is the circuit that consumes the most voltage in the line connection device 1. is there. Therefore, the connection between the power supply circuit 1 and the other circuit 2 is cut off by the switching circuit 6, and the supply of power to the other circuit 2 is cut off. As a result, a voltage holding time for power-off notification is secured.

【0017】なお、ここでは回線接続装置の電源断通知
について説明したが、他の装置についても、同様の技術
内容を適用することは可能である。
Although the power-off notification of the line connection device has been described here, the same technical content can be applied to other devices.

【0018】[0018]

【発明の効果】この発明によれば、回線接続装置の電源
断を伝送路側装置に通知する場合に、通知するための最
低条件の回路のみを動作させるので、電源断通知のため
の電圧保持時間を確保することができ、容量の大きな電
源の選択あるいは電池を使用することなく、通信を行う
相手装置に電源断情報を通知することができる。
According to the present invention, when notifying the power-supply interruption of the line connection device to the transmission line side device, only the circuit of the minimum condition for notification is operated. , And the power-off information can be notified to the communication partner device without selecting a power source having a large capacity or using a battery.

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

【図1】この発明による回線接続装置の構成図である。FIG. 1 is a configuration diagram of a line connection device according to the present invention.

【図2】従来技術による回線接続装置の構成図である。FIG. 2 is a configuration diagram of a conventional line connection device.

【図3】データ通信を行うユーザ側装置の構成図であ
る。
FIG. 3 is a configuration diagram of a user-side device that performs data communication.

【符号の説明】[Explanation of symbols]

1 電源回路 2 その他の回路 3 インタフェース回路 4 電源断検出回路 5 電源断送出回路 6 切換回路 10 端末 11 回線接続装置 12 伝送路側装置 DESCRIPTION OF SYMBOLS 1 Power supply circuit 2 Other circuits 3 Interface circuit 4 Power supply cutoff detection circuit 5 Power supply cutoff transmission circuit 6 Switching circuit 10 Terminal 11 Line connection device 12 Transmission line side device

─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成9年1月31日[Submission date] January 31, 1997

【手続補正1】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】発明の名称[Correction target item name] Name of invention

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【発明の名称】 回線接続装置[Title of the Invention] Line connection device

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 伝送路側装置12と端末を接続し、電源
回路1をオフにすると電源断情報を伝送路側装置12に
通知する回線接続装置において、 電源回路1がオフになるとともに、伝送路側装置12に
電源断情報を通知するための最低条件の回路を除いて、
電源回路1との接続を断にすることを特徴とする回線接
続装置。
1. A line connection device that connects a transmission line device 12 to a terminal and turns off a power supply circuit 1 and notifies the transmission line device 12 of power-off information. 12 except for the circuit of the minimum condition for notifying the power-off information to
A line connection device for disconnecting a connection to a power supply circuit 1.
【請求項2】 正常な通信を行うためのその他の回路2
と、その他の回路2を接続し、伝送路側装置12とのイ
ンタフェースをとるインタフェース回路3と、その他の
回路2とインタフェース回路3を駆動する電源回路1
と、電源回路1により駆動され、電源回路1の入力電圧
を監視する電源断検出回路4と、電源回路1により駆動
され、電源断検出回路4からの電源断情報をインタフェ
ース回路3に出力する電源断送出回路5を備え、電源回
路1をオフにした情報を伝送路側装置12に通知する回
線接続装置において、 電源回路1がオフになるとともに電源回路1とその他の
回路2の接続を断にし、インタフェース回路3、電源断
検出回路4および電源断送出回路5が駆動する電圧の最
低保持時間を確保することを特徴とする回線接続装置。
2. Other circuit 2 for performing normal communication
, An interface circuit 3 that connects the other circuits 2 and interfaces with the transmission line side device 12, and a power supply circuit 1 that drives the other circuits 2 and the interface circuit 3
A power cut-off detection circuit 4 driven by the power supply circuit 1 and monitoring an input voltage of the power supply circuit 1; and a power supply driven by the power supply circuit 1 and outputting power cut-off information from the power cut-off detection circuit 4 to the interface circuit 3. A line connection device that includes a disconnection sending circuit 5 and notifies the transmission line side device 12 of information that the power supply circuit 1 has been turned off, wherein the power supply circuit 1 is turned off and the connection between the power supply circuit 1 and the other circuits 2 is cut off; A line connection device for securing a minimum holding time of a voltage driven by an interface circuit, a power-off detection circuit, and a power-off sending circuit.
【請求項3】電源回路1がオフになると、電源回路1と
その他の回路2の接続を断にする切換回路6を備えるこ
とを特徴とする請求項2に記載の回線接続装置。
3. The line connection device according to claim 2, further comprising a switching circuit for disconnecting the connection between the power supply circuit and the other circuit when the power supply circuit is turned off.
JP32463496A 1996-11-20 1996-11-20 Line connection device Pending JPH10155006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32463496A JPH10155006A (en) 1996-11-20 1996-11-20 Line connection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32463496A JPH10155006A (en) 1996-11-20 1996-11-20 Line connection device

Publications (1)

Publication Number Publication Date
JPH10155006A true JPH10155006A (en) 1998-06-09

Family

ID=18168026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32463496A Pending JPH10155006A (en) 1996-11-20 1996-11-20 Line connection device

Country Status (1)

Country Link
JP (1) JPH10155006A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005303604A (en) * 2004-04-09 2005-10-27 Fuji Xerox Co Ltd Signal transmitting system and image forming device
JP2013074427A (en) * 2011-09-27 2013-04-22 Of Networks:Kk Intra-office optical line terminal, and band grant method for intra-office optical line terminal
CN111082836A (en) * 2019-11-18 2020-04-28 国网河北省电力有限公司电力科学研究院 Intelligent detection device and method for power failure of HPLC communication unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005303604A (en) * 2004-04-09 2005-10-27 Fuji Xerox Co Ltd Signal transmitting system and image forming device
JP2013074427A (en) * 2011-09-27 2013-04-22 Of Networks:Kk Intra-office optical line terminal, and band grant method for intra-office optical line terminal
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CN111082836B (en) * 2019-11-18 2021-07-27 国网河北省电力有限公司电力科学研究院 Intelligent detection device and method for power failure of HPLC communication unit

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