JPS625739A - Supervisory equipment for communication line - Google Patents
Supervisory equipment for communication lineInfo
- Publication number
- JPS625739A JPS625739A JP60142467A JP14246785A JPS625739A JP S625739 A JPS625739 A JP S625739A JP 60142467 A JP60142467 A JP 60142467A JP 14246785 A JP14246785 A JP 14246785A JP S625739 A JPS625739 A JP S625739A
- Authority
- JP
- Japan
- Prior art keywords
- line
- series
- communication line
- lines
- detection element
- 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.)
- Granted
Links
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、平衡形で、１対の通信回線の一方の線に素子
を直列に接続し、その素子の出力を検出することによる
で、通信回線の状態を監視する装置に係り、前記素子に
より、回線が不平衡になることにより発生する漏話、誘
導ノイズを防止するに好適な回路をもった、通信回線の
監視装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention is a balanced type communication line that connects an element in series to one line of a pair of communication lines and detects the output of the element. The present invention relates to a device for monitoring the state of a communication line, and has a circuit suitable for preventing crosstalk and induced noise caused by unbalanced lines due to the above-mentioned elements.
従来の通信回線の監視装置は、平衡形で、１対の通信回
線の一方の線だけを装置内に引き込み、その線に素子を
直列に接続し、その素子の出力を検出することによって
、通信回線の状態を監視する装置の構成となっ−Ｃいた
。そのため、前記検出素子と同等のインピーダンスをも
つ素子を、装置内に引き込まない他方の線を切断し、そ
の間へ直列に接続することにより対処していたので、多
数の通信回線の状態を監視する場合等においては、わず
られしいなどの欠点があった。Conventional communication line monitoring devices are of the balanced type, and only one line of a pair of communication lines is drawn into the device, an element is connected to that line in series, and the output of that element is detected. The configuration of the device that monitors the line status was -C. This has been dealt with by cutting off the other line that does not lead into the device and connecting an element with the same impedance as the detection element in series between them, so when monitoring the status of a large number of communication lines, etc., there were some disadvantages such as being bothersome.
Ｌ発明の目的〕
本発明の目的は、上記した従来技術の欠点をなくシ、平
衡形で、１対の通信回線の両方の線を、回線の状態を監
視する装置内に引き込み、一方の線には、回線の状態を
監視する素子を直列に接続し、他方の線には、その検出
素子と同等のインピーダンスを持つ素子を直列に接続で
きるような構造の端子板等を、回線数分設けておくこと
により、容易に不平衡状態を補正することができる、通
信回線の監視装置を提供することにある。LObject of the Invention] An object of the present invention is to eliminate the drawbacks of the above-mentioned prior art, and to connect both lines of a pair of communication lines into a device for monitoring the line status in a balanced type. For each line, an element that monitors the status of the line is connected in series, and the other line is equipped with a terminal board, etc. that is structured so that an element with an impedance equivalent to that of the detection element can be connected in series for the number of lines. It is an object of the present invention to provide a communication line monitoring device that can easily correct an unbalanced state by setting the above conditions.
本発明は、平衡形で、１対の通信回線の一方の線に素子
を直列に接続し、その素子の出力を検出することによっ
て、回線の状態を監視する装置において、他方の線も装
置内に引き込み、その素子と同等のインピーダンスを持
つ素子を、容易に直列に接続できる構造をもつ端子板等
に実装して。The present invention is a balanced type device in which an element is connected in series to one line of a pair of communication lines and the state of the line is monitored by detecting the output of the element. , and an element with the same impedance as that element is mounted on a terminal board etc. that has a structure that allows for easy series connection.
前記素子により１回線が不平衡になることを防止した１
通信回線の監視装置である。1. The element prevents one line from becoming unbalanced.
This is a communication line monitoring device.
〔発明の実施例〕 − 以下、本発明の一実施例を第１図により説明する。[Embodiments of the invention] - An embodiment of the present invention will be described below with reference to FIG.
第１図において、１は通信回線の監視装置、２は平衡形
の１対の通信回線（Ｌ１線とＬ２．１！で構成される）
、３は回線の状態を監視する検出素子、４は３の出力を
検出する機能をもつ監視制御部、５は４の検出素子と同
等のインピーダンスを持つ素子、６は５を実装するため
の端子板、７は６に設けられた端子であり、５を接続す
るためのものである。In Fig. 1, 1 is a communication line monitoring device, and 2 is a pair of balanced communication lines (consisting of L1 line and L2.1!).
, 3 is a detection element that monitors the state of the line, 4 is a monitoring control unit that has a function of detecting the output of 3, 5 is an element with impedance equivalent to that of the detection element 4, and 6 is a terminal for mounting 5. Plate 7 is a terminal provided on 6 and is for connecting 5.
１の通信回線の監視装置は、２の平衡形の１対の通信回
線を引き込み、Ｌ１線とＬ２線の間に流れる電流を、３
の検出素子を用いて検出し、その検出信号を、４の監視
制御部が読み込み、通信回線の利用状態などを測定、あ
るいは編集するものである。以上の装置構成において、
３の回線の状態を監視する検出素子を用いたことによる
、Ｌ１線とＬ２．Ｉｇの不平衡状態を、３と同等のイン
ピーダンスを持つ素子５を、６の端子板に設けられた、
７の端子に直列に接続することにより、誤りなく、しか
も簡単に平衡状態に補正できる。The communication line monitoring device 1 draws in a pair of balanced type communication lines 2, and controls the current flowing between the L1 wire and the L2 wire by 3
The detection signal is read by the monitoring control unit 4 to measure or edit the usage status of the communication line. In the above device configuration,
By using a detection element that monitors the state of the L1 line and L2. The unbalanced state of Ig is determined by an element 5 having an impedance equivalent to that of 3, which is provided on the terminal board of 6.
By connecting it in series to the terminal No. 7, it is possible to correct the balanced state easily and without error.
本発明によれば１以上説明したように、通信回線の一方
の線に素子を直列に接続したことによって生ずる不平衡
状態を、多数の回線を監視する一場合においても、簡単
に、しかも誤りなく、効率的に実現可能である。According to the present invention, as explained above, even when a large number of lines are monitored, it is possible to easily and without error detect an unbalanced state caused by connecting an element in series to one line of a communication line. , can be realized efficiently.
第１図は９本発明の一実施例を示した図である。 符号の説明 １・・・・・監視装置 ２・・・・・通信回線 ３・・・・・検出素子 ４・・・・・監視制御部 ５・・・・・インピーダンス 第１図 FIG. 1 is a diagram showing one embodiment of the present invention. Explanation of symbols 1...Monitoring device 2...Communication line 3...Detection element 4...Monitoring control section 5... Impedance Figure 1
Claims (1)
続し、その素子の出力を検出することによって、回線の
状態を監視する装置において、他方の線も装置内に引き
込み、その検出素子と同等のインピーダンスを持つ素子
を直列に接続して、前記素子により、回線が不平衡にな
ることを防止した、通信回線の監視装置。In a balanced type device in which an element is connected in series to one wire of a pair of communication lines and the state of the line is monitored by detecting the output of the element, the other line is also drawn into the device and the A communication line monitoring device in which an element having the same impedance as a detection element is connected in series to prevent the line from becoming unbalanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60142467A JPS625739A (en) | 1985-07-01 | 1985-07-01 | Supervisory equipment for communication line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60142467A JPS625739A (en) | 1985-07-01 | 1985-07-01 | Supervisory equipment for communication line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS625739A true JPS625739A (en) | 1987-01-12 |
| JPH044781B2 JPH044781B2 (en) | 1992-01-29 |
Family
ID=15315992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60142467A Granted JPS625739A (en) | 1985-07-01 | 1985-07-01 | Supervisory equipment for communication line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS625739A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5612136A (en) * | 1979-07-10 | 1981-02-06 | Nippon Telegr & Teleph Corp <Ntt> | Detecting method for fault of balanced cable |
| JPS5863254A (en) * | 1981-10-12 | 1983-04-15 | Nippon Telegr & Teleph Corp <Ntt> | Hit generator |
-
1985
- 1985-07-01 JP JP60142467A patent/JPS625739A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5612136A (en) * | 1979-07-10 | 1981-02-06 | Nippon Telegr & Teleph Corp <Ntt> | Detecting method for fault of balanced cable |
| JPS5863254A (en) * | 1981-10-12 | 1983-04-15 | Nippon Telegr & Teleph Corp <Ntt> | Hit generator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH044781B2 (en) | 1992-01-29 |
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