JPH0575736A - High speed digital private line terminating equipment - Google Patents
High speed digital private line terminating equipmentInfo
- Publication number
- JPH0575736A JPH0575736A JP3229312A JP22931291A JPH0575736A JP H0575736 A JPH0575736 A JP H0575736A JP 3229312 A JP3229312 A JP 3229312A JP 22931291 A JP22931291 A JP 22931291A JP H0575736 A JPH0575736 A JP H0575736A
- Authority
- JP
- Japan
- Prior art keywords
- line
- speed digital
- switching
- terminating
- circuit
- 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
Landscapes
- Maintenance And Management Of Digital Transmission (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は高速デジタル専用線終端
装置に関し、特に高速デジタル専用線が障害の時には、
迂回回線へ回線切替を行なう高速デジタル専用線終端装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-speed digital leased line terminating device, and particularly when a high-speed digital leased line is in trouble.
The present invention relates to a high-speed digital leased line terminating device that switches a line to a bypass line.
【０００２】[0002]
【従来の技術】ここでいう高速デジタル専用線とは６４
Ｋｂ／ｓ〜６Ｍｂ／ｓの高速データを伝送するために２
局間を専用に結ぶ伝送路をいう。又、高速デジタル交換
加入者線とは高速データを伝送するために２局間を回線
交換により結ぶ伝送路をいう。前者を提供するものは、
例えば日本電信電話株式会社（ＮＴＴ）のサービスする
高速デジタル伝送サービス、或いは各企業が保有する高
速デジタル専用線である。又後者を提供するものは、例
えばＮＴＴがサービスするＩＮＳ（Ｉｎｆｏｍａｔｉｏ
ｎ Ｎｅｔｗｏｒｋ Ｓｙｓｔｅｍ）サービスである。2. Description of the Related Art The high-speed digital leased line referred to here is 64.
2 to transmit high-speed data of Kb / s to 6 Mb / s
A transmission line that connects stations exclusively. A high-speed digital exchange subscriber line is a transmission line that connects two stations by circuit switching in order to transmit high-speed data. What provides the former is
For example, a high-speed digital transmission service provided by Nippon Telegraph and Telephone Corporation (NTT) or a high-speed digital leased line owned by each company. The latter is provided by, for example, INS (Infomatio) serviced by NTT.
n Network System) service.
【０００３】従来、この種の高速デジタル専用線終端装
置は、高速デジタル専用線を終端しユーザ端末とのイン
タフェース変換を行ない、ユーザ端末へ回線を接続する
機能のみで、高速デジタル専用線が障害の場合には、障
害高速デジタル専用線を他の迂回回線に切替えるといっ
た機能はなかった。又切替える機能があったとしても迂
回回線は、予備の高速デジタル専用線を用いている。Conventionally, this type of high-speed digital leased line terminating device has only the function of terminating the high-speed digital leased line, converting the interface with the user terminal, and connecting the line to the user terminal. In this case, there was no function to switch the faulty high-speed digital leased line to another bypass line. Even if there is a switching function, a spare high-speed digital leased line is used as a bypass line.
【０００４】[0004]
【発明が解決しようとする課題】このように従来例で
は、高速デジタル専用線の障害時に迂回回線がないの
で、回線の信頼性に不安があり、又迂回回線があっても
予備の高速デジタル専用線を用いているので回線コスト
が高くなるという問題がある。As described above, in the conventional example, since there is no detour line when the high-speed digital leased line fails, there is concern about the reliability of the line, and even if there is a detour line, the spare high-speed digital line is dedicated. Since the line is used, there is a problem that the line cost becomes high.
【０００５】[0005]
【課題を解決するための手段】本発明の高速デジタル専
用線終端装置は、高速デジタル専用線を終端しユーザ端
末とのインタフェース変換を行ない前記ユーザ端末へ回
線を接続する専用線終端部と、前記高速デジタル専用線
が障害の場合には自動的に相手局との間に迂回回線とし
て高速デジタル交換加入者線を形成し前記高速デジタル
専用線を前記高速デジタル交換加入者線に切替える迂回
回線切替部とを備えている。A high-speed digital leased line terminating device of the present invention includes a leased line terminating unit for terminating a high-speed digital leased line, performing interface conversion with a user terminal, and connecting a line to the user terminal. When the high-speed digital leased line is in failure, a high-speed digital exchange subscriber line is automatically formed as a bypass line with the partner station and the high-speed digital leased line is switched to the high-speed digital exchange subscriber line. It has and.
【０００６】又具体的には、高速デジタル専用線を終端
すると共に前記高速デジタル専用線が障害の場合に回線
障害信号を出力する高速デジタル専用線終端部と、高速
デジタル交換加入者線を終端する高速デジタル交換加入
者線終端部と、前記高速デジタル専用線終端部の終端回
線と前記高速デジタル交換加入者線終端部の終端回線と
を切替信号により切替える回線切替部と、前記回線切替
部の切替えた側の終端回線をユーザ端末に接続するユー
ザ端末接続部と、前記回線障害信号を受信し回線接続信
号を出力すると共に接続完了信号を受信した時に前記切
替信号を前記回線切替部へ出力する切替制御部と、前記
接続制御信号を受信し前記高速デジタル交換加入者線終
端部を介して相手局高速デジタル専用線終端装置との間
に前記高速デジタル交換加入者線を回線接続し前記接続
完了信号を出力する発着信制御部とを備えている。More specifically, a high-speed digital leased line is terminated and a high-speed digital leased line termination unit that outputs a line fault signal when the high-speed digital leased line is faulty, and a high-speed digital exchange subscriber line are terminated. High-speed digital exchange subscriber line termination unit, line switching unit for switching the termination line of the high-speed digital leased line termination unit and termination line of the high-speed digital switching subscriber line termination unit, and switching of the line switching unit And a user terminal connection unit for connecting the terminal line on the closed side to a user terminal, and a switch for outputting the switching signal to the line switching unit when receiving the line failure signal and outputting the line connection signal and receiving the connection completion signal The high-speed digitizer is provided between the control unit and the partner station high-speed digital leased line terminating device that receives the connection control signal and that passes through the high-speed digital exchange subscriber line terminating unit. The exchange subscriber line and a call controller unit that outputs the connection completion signal to the line connection.
【０００７】[0007]
【実施例】次に本発明の一実例について図を参照して説
明する。図１は本実施例の構成を示すブロック図であ
る。高速デジタル専用線終端部１は高速デジタル専用線
を終端すると共に高速デジタル専用線が障害の場合に回
線障害信号１０１を出力する。ＩＮＳネット回線終端部
２はＩＮＳ加入者線を終端する。回線切替部３は高速デ
ジタル専用線終端部１の終端回線とＩＮＳ回線終端部２
の終端回線とを切替信号１０２により切替える。ユーザ
端末接続部４は回線切替部３の切替えた側の終端回線を
ユーザ端末に接続する。切替制御部６は回線障害信号１
０１を受信し、回線接続信号１０３を出力すると共に接
続完了信号１０４を受信して切替信号１０２を回線切替
部３へ出力する。発着信制御部５は接続制御信号１０３
を受信し、ＩＮＳネット回線終端部２を介して相手局高
速デジタル専用線終端装置との間に迂回回線である高速
デジタル交換加入者線を形成するため、回線接続の発着
信制御を行なう。これが完了すると接続完了信号１０４
を出力する。尚、切替制御部６は回線障害信号１０１の
代りに外部切替信号１０５を入力されても同様に動作す
る。EXAMPLE An example of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of this embodiment. The high-speed digital leased line terminating unit 1 terminates the high-speed digital leased line and outputs a line fault signal 101 when the high-speed digital leased line has a fault. The INS net line terminating unit 2 terminates the INS subscriber line. The line switching unit 3 includes a termination line of the high-speed digital leased line termination unit 1 and an INS line termination unit 2
And the terminating line of the switch are switched by the switching signal 102. The user terminal connecting unit 4 connects the terminal line on the switched side of the line switching unit 3 to the user terminal. The switching control unit 6 uses the line fault signal 1
01, outputs the line connection signal 103, receives the connection completion signal 104, and outputs the switching signal 102 to the line switching unit 3. The transmission / reception control unit 5 uses the connection control signal 103
Is received and a high-speed digital exchange subscriber line, which is a bypass line, is formed with the partner station high-speed digital leased line terminating device via the INS net line terminating unit 2 so as to control transmission / reception of line connection. When this is completed, the connection completion signal 104
Is output. The switching control unit 6 operates similarly even when the external switching signal 105 is input instead of the line fault signal 101.
【０００８】回線切替部３の切替は、常時は高速デジタ
ル専用線終端部１側の終端回線を出力しているが、高速
デジタル専用線が障害の場合、或いは外部切替信号１０
５を入力された場合には切替信号１０２により迂回回線
のＩＮＳネット回線終端部２側の終端回線を出力する。
尚、ＩＮＳ加入者線は回線交換を行なっているので、高
速デジタル専用線を予備に設けた場合に比べ、使用時間
当りの回線コストははるかに小さい。The switching of the line switching unit 3 always outputs the termination line on the side of the high-speed digital leased line terminating unit 1, but when the high-speed digital leased line fails, or the external switching signal 10
When 5 is input, the switching signal 102 outputs the termination line on the INS net line termination unit 2 side of the bypass line.
Since the INS subscriber line is circuit-switched, the line cost per usage time is much smaller than when a high-speed digital leased line is provided as a spare.
【０００９】[0009]
【発明の効果】以上説明したように本発明は、迂回回線
の切替機能を有し、この迂回回線にＩＮＳネット回線な
どの回線交換加入者線を用いているので、低いコストで
回線信頼性を高めるという効果がある。As described above, the present invention has a function of switching a detour line and uses a circuit-switched subscriber line such as an INS net line for this detour line, so that the line reliability can be reduced at a low cost. It has the effect of increasing it.
【図１】本実施例の構成を示すブロック図である。FIG. 1 is a block diagram showing the configuration of this embodiment.
１ 高速デジタル専用線終端部 ２ ＩＮＳネット回線終端部 ３ 回線切替部 ４ ユーザ端末接続部 ５ 発着信制御部 ６ 切替制御部 1 High-speed digital leased line termination unit 2 INS net line termination unit 3 Line switching unit 4 User terminal connection unit 5 Originating / terminating control unit 6 Switching control unit
Claims (2)
とのインタフェース変換を行ない前記ユーザ端末へ回線
を接続する専用線終端部と、前記高速デジタル専用線が
障害の場合には自動的に相手局との間に迂回回線として
高速デジタル交換加入者線を形成し前記高速デジタル専
用線を前記高速デジタル交換加入者線に切替える迂回回
線切替部とを備えることを特徴とする高速デジタル専用
線終端装置。1. A dedicated line terminating unit for terminating a high-speed digital leased line and performing interface conversion with a user terminal to connect a line to the user terminal; And a detour line switching unit that forms a high-speed digital exchange subscriber line as a detour line between the line and the detour line and switches the high-speed digital leased line to the high-speed digital exchange subscriber line.
記高速デジタル専用線が障害の場合に回線障害信号を出
力する高速デジタル専用線終端部と、高速デジタル交換
加入者線を終端する高速デジタル交換加入者線終端部
と、前記高速デジタル専用線終端部の終端回線と前記高
速デジタル交換加入者線終端部の終端回線とを切替信号
により切替える回線切替部と、前記回線切替部の切替え
た側の終端回線をユーザ端末に接続するユーザ端末接続
部と、前記回線障害信号を受信し回線接続信号を出力す
ると共に接続完了信号を受信した時に前記切替信号を前
記回線切替部へ出力する切替制御部と、前記接続制御信
号を受信し前記高速デジタル交換加入者線終端部を介し
て相手局高速デジタル専用線終端装置との間に前記高速
デジタル交換加入者線を回線接続し前記接続完了信号を
出力する発着信制御部とを備えることを特徴とする高速
デジタル専用線終端装置。2. A high-speed digital leased line terminating unit for terminating the high-speed digital leased line and outputting a line fault signal when the high-speed digital leased line has a fault, and a high-speed digital exchange subscriber terminating the high-speed digital exchange subscriber line. Trunk line terminating unit, a terminating line of the terminating unit of the high-speed digital leased line and a terminating line of the terminating unit of the high-speed digital switching subscriber line, and a terminating end of the switched side of the line switching unit. A user terminal connection unit for connecting a line to a user terminal; a switching control unit for receiving the line failure signal, outputting a line connection signal, and outputting the switching signal to the line switching unit when a connection completion signal is received; The high-speed digital exchange subscriber line is received between the connection control signal and the other station high-speed digital leased line terminating device via the high-speed digital exchange subscriber line terminating unit. And a call origination / termination control unit that outputs the connection completion signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3229312A JPH0575736A (en) | 1991-09-10 | 1991-09-10 | High speed digital private line terminating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3229312A JPH0575736A (en) | 1991-09-10 | 1991-09-10 | High speed digital private line terminating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0575736A true JPH0575736A (en) | 1993-03-26 |
Family
ID=16890171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3229312A Pending JPH0575736A (en) | 1991-09-10 | 1991-09-10 | High speed digital private line terminating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0575736A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07312657A (en) * | 1994-05-18 | 1995-11-28 | Nec Corp | Transmission channel backup system |
| US5525686A (en) * | 1993-12-21 | 1996-06-11 | Mitsui Toatsu Chemicals, Inc. | Polyvalent metal salt of salicyclic acid resin and process for preparing it |
| US8900025B2 (en) | 2011-09-19 | 2014-12-02 | Samsung Display Co., Ltd. | Liquid crystal display device and method of manufacturing the same |
-
1991
- 1991-09-10 JP JP3229312A patent/JPH0575736A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5525686A (en) * | 1993-12-21 | 1996-06-11 | Mitsui Toatsu Chemicals, Inc. | Polyvalent metal salt of salicyclic acid resin and process for preparing it |
| JPH07312657A (en) * | 1994-05-18 | 1995-11-28 | Nec Corp | Transmission channel backup system |
| US8900025B2 (en) | 2011-09-19 | 2014-12-02 | Samsung Display Co., Ltd. | Liquid crystal display device and method of manufacturing the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2232478C2 (en) | Internetwork interface for voice transfer according to internet protocol and its control process | |
| JP3247540B2 (en) | Packetized communication device and switching device | |
| US7369544B2 (en) | Internet telephone system with hunting diversion | |
| US9325529B2 (en) | Hybrid type telephony system | |
| JPH0575736A (en) | High speed digital private line terminating equipment | |
| JPH03274953A (en) | Telephone system | |
| KR100362346B1 (en) | Network switching system for relaying subscriber line and method for offering communication service using the same | |
| US6754201B1 (en) | Communication system using line appearances on a single line for connecting multiple devices | |
| JP3016457B2 (en) | Communications system | |
| JP3093666B2 (en) | Computer communication method | |
| JPS5854710B2 (en) | Dial information transfer method | |
| JPS63222538A (en) | Information communication network | |
| JPS6187497A (en) | Digital electronic switching system | |
| JP2820983B2 (en) | I-interface subscriber line test method | |
| JPH0583022B2 (en) | ||
| JPH04154394A (en) | Isdn terminal attaching device and communication system | |
| JPH08237375A (en) | System for helping trouble in private line communication | |
| JPS60152150A (en) | Line exchange system | |
| JPS59140732A (en) | Mobile communication system | |
| JPH03135148A (en) | Simultaneous communication call connection control system | |
| KR20000039738A (en) | Data network interworking device providing wireless pad function for interworking ppdn in mobile communication network and method for data communication using the same | |
| JPH02305133A (en) | Privacy call communication system | |
| JPH114303A (en) | Data communication system and its method | |
| JPH02285762A (en) | Line changeover system | |
| JPS61100095A (en) | Analog telephone set switching system |