JP2689668B2 - Control path backup method - Google Patents
Control path backup methodInfo
- Publication number
- JP2689668B2 JP2689668B2 JP2013061A JP1306190A JP2689668B2 JP 2689668 B2 JP2689668 B2 JP 2689668B2 JP 2013061 A JP2013061 A JP 2013061A JP 1306190 A JP1306190 A JP 1306190A JP 2689668 B2 JP2689668 B2 JP 2689668B2
- Authority
- JP
- Japan
- Prior art keywords
- data
- line
- control
- communication line
- public telephone
- 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.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は制御パスバックアップ方式に関し、特に時分
割多重化装置群と時分割多重化装置群を一元管理制御を
行う制御装置間の制御パスのバックアップ用に公衆電話
回線を使用する制御パスバックアップ方式に関する。Description: TECHNICAL FIELD The present invention relates to a control path backup system, and more particularly to a control path between a time division multiplexing device group and a control device that performs unified management control of the time division multiplexing device group. The present invention relates to a control path backup method that uses a public telephone line for backup.
従来のこの種の制御パスバックアップ方式としては通
常使用する専用回線の制御パスと，バックアップ時の公
衆電話回線の制御パス上の伝送速度が同一となってい
た。In the conventional control path backup method of this type, the transmission speed on the control path of the leased line normally used is the same as that on the control path of the public telephone line at the time of backup.
上述した従来の制御パスバックアップ方式は、通常使
用する専用回線の制御パスと、通信回線障害時に使用す
る公衆電話回線のバックアップ用の制御パス上の伝送速
度が同一でなければならないため、公衆電話回線で使用
できる通信速度が2.4Kbps,4.8Kbps,9.6Kbps等に限定さ
れるので、これに対応し専用回線の制御パスの速度も限
定されることになり、従って制御装置からの制御を高速
処理しようとしても制御パスの速度制限により高速処理
にも限界が生じるという欠点がある。In the conventional control path backup method described above, the transmission speed on the control path for the normally used leased line and the transmission speed on the control path for backing up the public telephone line used when the communication line fails must be the same, so the public telephone line Since the communication speed that can be used with is limited to 2.4 Kbps, 4.8 Kbps, 9.6 Kbps, etc., the speed of the control path of the leased line will be limited correspondingly, so let's process the control from the control unit at high speed. However, there is a drawback that the high speed processing is limited due to the speed limitation of the control path.
本発明の制御パスバックアップ方式は、複数の低速端
末からのデータを通信回線上に多重又は分離する時分割
多重化装置が相互に通信回線で接続されたネットワーク
を形成する時分割多重化装置群と前記時分割多重化装置
群を一元的に管理制御する制御装置とを接続する専用回
線による制御パスと、前記通信回線障害時に前記制御装
置と前記時分割多重化装置群とのバックアップ用の公衆
電話回線による制御パスとの２系統の制御パスを有して
前記制御装置による制御を行なう制御パスバックアップ
方式において、前記専用回線を介して前記制御装置から
受信するデータに第１のフレーム信号を付加し前記通信
回線上の伝送速度に速度変換する専用回線受信手段と、
前記公衆電話回線を介して前記制御装置から受信するデ
ータに第２のフレーム信号を付加し前記通信回線上の伝
送速度に速度変換する公衆電話回線受信手段と、前記通
信回線もしくは専用回線ならびに前記公衆電話回線のい
ずれかを介して受信する制御装置からのデータと低速端
末からのデータとを前記通信回線に多重送出する多重送
出手段と、前記第１および第２のフレーム信号を識別し
受信データを前記専用回線および公衆電話回線の伝送速
度に変換して受信する受信データ速度変換手段とを備え
て構成される。The control path backup system of the present invention includes a group of time-division multiplexers that form a network in which time-division multiplexers that multiplex or demultiplex data from a plurality of low-speed terminals on a communication line are connected to each other by a communication line. A control path by a dedicated line connecting a control device that centrally manages and controls the time division multiplexing device group, and a public telephone for backup of the control device and the time division multiplexing device group when the communication line fails In a control path backup system in which control is performed by the control device by having two control paths, a control path via a line, a first frame signal is added to data received from the control device via the dedicated line. Dedicated line receiving means for speed conversion to the transmission speed on the communication line,
Public telephone line receiving means for adding a second frame signal to data received from the control device via the public telephone line and converting the transmission rate to the transmission rate on the communication line, the communication line or dedicated line, and the public line Multiplexing means for multiplex-transmitting to the communication line the data from the control device and the data from the low-speed terminal which are received via any one of the telephone lines, and the received data by identifying the first and second frame signals. And a reception data rate conversion means for converting the transmission rate of the dedicated line and the public telephone line to receive.
また本発明の制御パスバックアップ方式は、前記受信
データ速度変換手段における前記第１および第２のフレ
ーム信号の識別をそれぞれのフレーム同期信号の違いに
もとづいて行なう構成を有する。Further, the control path backup system of the present invention has a configuration in which the first and second frame signals in the received data rate converting means are identified based on the difference between the respective frame synchronization signals.
次に本発明について図面を参照して説明する。 Next, the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す構成図、第２図は本
発明のシステム構成図、第３図は通信回線断におけるバ
ックアップ時のシステム構成図である。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a system block diagram of the present invention, and FIG. 3 is a system block diagram at the time of backup in case of communication line disconnection.
第１図の実施例は、専用回線を介して制御装置から受
信するデータに第１のフレーム信号を付加し通信回線上
の伝送速度に速度変換する専用回線受信手段としての専
用回線受信回線２、フレーム生成速度変換回路３と、公
衆電話回線を介して制御装置から受信するデータに第２
のフレーム信号を付加し通信回線上の伝送速度に速度変
換する公衆電話回線受信手段としての公衆電話回線受信
回路４、フレーム生成速度変換回路５と、低速端末のデ
ータと制御装置からのデータが多重化された通信回線か
ら制御装置からのデータを分離する分離回路１、選択回
路6,7、制御装置からのデータと低速端末からのデータ
とを通信回線に多重送出する多重回路８と、上述した第
１および第２のフレーム信号を識別し受信データを前記
専用回線および公衆電話回線の伝送速度に変換して受信
する受信データ速度変換手段としてのフレーム同期速度
変換回路９、制御データ受信回路10とを備えて成る。In the embodiment shown in FIG. 1, a dedicated line receiving line 2 serving as a dedicated line receiving means for adding a first frame signal to data received from a control device via the dedicated line and converting the data into a transmission speed on the communication line, The frame generation speed conversion circuit 3 and the data received from the control device via the public telephone line are secondarily added to the data.
The public telephone line receiving circuit 4 as a public telephone line receiving means for adding the frame signal of the above and converting the transmission rate to the transmission rate on the communication line, the frame generation rate converting circuit 5, the data of the low speed terminal and the data from the control device are multiplexed. The separation circuit 1 for separating the data from the control device from the converted communication line, the selection circuits 6 and 7, the multiplexing circuit 8 for multiplex sending the data from the control device and the data from the low speed terminal to the communication line, A frame synchronization speed conversion circuit 9 and a control data reception circuit 10 as reception data speed conversion means for identifying the first and second frame signals, converting the reception data into the transmission speeds of the dedicated line and public telephone line, and receiving the data. It is equipped with.
次に、本実施例の動作について説明する。 Next, the operation of the present embodiment will be described.
第１図に見る如く、時分割多重化装置は制御パスの入
力部として通信回線、専用回線、公衆電話回線の３線の
回線に接続される。As shown in FIG. 1, the time division multiplexer is connected to three lines of a communication line, a dedicated line and a public telephone line as an input unit of a control path.
通信回線からの低速端末のデータと制御装置からのデ
ータが多重化された入力データは、分離回路１により制
御装置からのデータを分離して選択回路６へ送出する。
専用回線からの入力された速度V1のデータは専用回線受
信回路２を介してフレーム生成速度変換回路３によりフ
レームF1を付加し通信回線へ多重する速度V3へ速度変換
され、選択回路６へ送出される。The input data obtained by multiplexing the data of the low speed terminal and the data from the control device from the communication line is separated by the separation circuit 1 from the data from the control device and sent to the selection circuit 6.
The data of the speed V1 input from the leased line is converted to the speed V3 for adding the frame F1 and multiplexing to the communication line by the frame generation speed conversion circuit 3 via the leased line reception circuit 2 and sent to the selection circuit 6. It
選択回路６は、直接制御装置と専用回線で接続されて
いる時分割多重化装置にあっては専用回線側に、他の時
分割多重化装置では通信回線側が選択されている。The selection circuit 6 is selected on the leased line side in the time division multiplexing device directly connected to the control device and on the communication line side in the other time division multiplexing devices.
公衆電話回線から入力された速度V2のデータは、公衆
電話回線受信回路４を介してフレーム生成速度変換回路
５によりフレームF2を付加し通信回線へ多重する速度V3
へ速度変換されて選択回路７へ送出される。選択回路７
は通常選択回路６からの信号を選択しており、公衆電話
回線からデータが公衆電話回線受信回路４に受信された
時、受信回路４からの信号により選択回路７は公衆電話
回線の信号を選択する。The data of speed V2 input from the public telephone line is added to the frame generation speed conversion circuit 5 via the public telephone line reception circuit 4 to add the frame F2 to the communication line.
The speed is converted to and sent to the selection circuit 7. Selection circuit 7
Normally selects the signal from the selection circuit 6, and when data is received from the public telephone line by the public telephone line reception circuit 4, the selection circuit 7 selects the signal of the public telephone line by the signal from the reception circuit 4. To do.
選択回路７からのデータは多重回路８へ送出され他の
時分割多重化装置への通信回線へ多重化され伝送され
る。The data from the selection circuit 7 is sent to the multiplexing circuit 8 and is multiplexed and transmitted to the communication line to another time division multiplexing device.
フレーム同期速度変換回路９は選択回路７からのフレ
ーム同期をとり受信されたフレームがF1であれば速度V1
に、フレームF2であれば速度V2に変換してデータを制御
データ受信部10へ送出する。制御データ受信部10はフレ
ーム同期速度変速回路９からの情報により受信速度をV1
又はV2にして制御データを受信する。The frame synchronization speed conversion circuit 9 synchronizes with the frame from the selection circuit 7 and if the received frame is F1, the speed V1
If the frame is F2, the data is converted to the speed V2 and the data is sent to the control data receiving unit 10. The control data receiving unit 10 changes the reception speed to V1 according to the information from the frame synchronization speed shift circuit 9.
Or set to V2 to receive control data.
第２図は、通信回線が全て正常である場合を示してお
り、時分割多重化装置11は専用回線18を介して直接制御
装置17と接続され、他の時分割多重化装置11〜16は通信
回線20を介して接続され、全て専用回線の速度V1にて通
信を行なっている。FIG. 2 shows a case where all the communication lines are normal. The time division multiplexing device 11 is directly connected to the control device 17 via a dedicated line 18, and the other time division multiplexing devices 11 to 16 are They are connected via a communication line 20 and all communicate at the dedicated line speed V1.
第３図は、時分割多重化装置12,15間の通信回線20が
通信断の場合を示し、時分割多重化装置11〜14は第２図
の場合と同様に速度V1にて制御装置17と通信を行う。時
分割多重化装置15と制御装置17とは公衆電話回線で接続
され、時分割多重化装置15,16へはフレームF2が受信さ
れ速度V2で通信を行う。FIG. 3 shows the case where the communication line 20 between the time division multiplexers 12 and 15 is out of communication, and the time division multiplexers 11 to 14 have the control unit 17 at the speed V1 as in the case of FIG. Communicate with. The time division multiplex device 15 and the control device 17 are connected by a public telephone line, and the frame F2 is received by the time division multiplex devices 15 and 16 to communicate at the speed V2.
以上説明したように本発明では、通常使用する専用回
線の制御パスと、通信回線障害時に使用する公衆電話回
線のバックアップの制御パスの速度をそれぞれ独立に設
定することにより、専用回線の制御パスの速度を高速に
設定して通常時の制御装置からの制御が高速に行なうこ
とができる効果がある。As described above, according to the present invention, the speed of the control path of the leased line that is normally used and the control path of the backup of the public telephone line that is used when the communication line fails are set independently of each other. There is an effect that the speed can be set to a high speed and the control from the control device at the normal time can be performed at a high speed.
第１図は本発明の一実施例を示す構成図、第２図は本発
明のシステム構成図、第３図は通信回線障害時のシステ
ム構成図である。 １……分離回路、２……専用回線受信回路、３……フレ
ーム生成速度変換回路、４……公衆電話回線受信回路、
５……フレーム生成速度変換回路、6,7……選択回路、
８……多重回路、９……フレーム同期速度変換回路、10
……制御データ受信回路、11〜16……時分割多重化装
置、17……制御装置、18……専用回線、19……制御パ
ス、20……通信回線、21……公衆電話回線。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a system block diagram of the present invention, and FIG. 3 is a system block diagram at the time of communication line failure. 1 ... Separation circuit, 2 ... Dedicated line reception circuit, 3 ... Frame generation speed conversion circuit, 4 ... Public telephone line reception circuit,
5 …… Frame generation speed conversion circuit, 6,7 …… Selection circuit,
8 ... Multiplex circuit, 9 ... Frame sync speed conversion circuit, 10
...... Control data receiving circuit, 11 to 16 ...... Time division multiplexing device, 17 ...... Control device, 18 ...... Dedicated line, 19 ...... Control path, 20 ...... Communication line, 21 ...... Public telephone line.
Claims (2)
重又は分離する時分割多重化装置が相互に通信回線で接
続されたネットワークを形成する時分割多重化装置群と
前記時分割多重化装置群を一元的に管理制御する制御装
置とを接続する専用回線による制御パスと、前記通信回
線障害時に前記制御装置と前記時分割多重化装置群との
バックアップ用の公衆電話回線による制御パスとの２系
列の制御パスを有して前記制御装置による制御を行なう
制御パスバックアップ方式において、 前記専用回線を介して前記制御装置から受信するデータ
に第１のフレーム信号を付加し前記通信回線上の伝送速
度に速度変換する専用回線受信手段と、 前記公衆電話回線を介して前記制御装置から受信するデ
ータに第２のフレーム信号を付加し前記通信回線上の伝
送速度の速度変換する公衆電話回線受信手段と、 前記通信回線もしくは専用回線ならびに前記公衆電話回
線のいずれかを介して受信する前記制御装置からのデー
タと前記端末からのデータとを前記通信回線に多重化送
出する多重送出手段と、 前記第１のフレーム信号および前記第２のフレーム信号
を識別し受信データを前記専用回線および公衆電話回線
の伝送速度に変換して受信する受信データ速度変速手段
とを備えて成ることを特徴とする制御パスバックアップ
方式。1. A group of time division multiplexers for forming a network in which time division multiplexers for multiplexing or separating data from a plurality of terminals on a communication line form a network connected to each other by the communication line, and the time division multiplexing. A control path by a dedicated line for connecting a control device for centrally managing and controlling the device group, and a control path by a public telephone line for backup of the control device and the time division multiplexing device group when the communication line fails In the control path backup method for controlling by the control device having two series of control paths, the first frame signal is added to the data received from the control device via the dedicated line, and the communication line on the communication line is added. Dedicated line receiving means for speed-converting to a transmission speed; and a communication line for adding a second frame signal to data received from the control device via the public telephone line. Public telephone line receiving means for converting the transmission rate of the data, and data from the control device and data from the terminal, which are received via any one of the communication line or the dedicated line and the public telephone line, And multiplex sending means for multiplex sending, and received data rate shifting means for identifying the first frame signal and the second frame signal, converting the received data into the transmission rate of the dedicated line and public telephone line, and receiving the data. A control path backup method comprising:
第１のフレーム信号および前記第２のフレーム信号の識
別をそれぞれのフレーム同期信号の違いにもとづいて行
なうことを特徴とする請求項１記載の制御パスバックア
ップ方式。2. The control according to claim 1, wherein the reception data rate conversion means identifies the first frame signal and the second frame signal based on a difference between respective frame synchronization signals. Path backup method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013061A JP2689668B2 (en) | 1990-01-22 | 1990-01-22 | Control path backup method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013061A JP2689668B2 (en) | 1990-01-22 | 1990-01-22 | Control path backup method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03216049A JPH03216049A (en) | 1991-09-24 |
| JP2689668B2 true JP2689668B2 (en) | 1997-12-10 |
Family
ID=11822619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013061A Expired - Fee Related JP2689668B2 (en) | 1990-01-22 | 1990-01-22 | Control path backup method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2689668B2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63181550A (en) * | 1987-01-23 | 1988-07-26 | Toshiba Corp | Modem device with managing function |
| JPS63248255A (en) * | 1987-04-03 | 1988-10-14 | Hitachi Ltd | On-line data transmission system |
| JPH01264338A (en) * | 1988-04-15 | 1989-10-20 | Hitachi Ltd | Adapter for centralized control |
| JPH01269356A (en) * | 1988-04-21 | 1989-10-26 | Nec Corp | Communication line switching system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63158049U (en) * | 1987-04-06 | 1988-10-17 |
-
1990
- 1990-01-22 JP JP2013061A patent/JP2689668B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63181550A (en) * | 1987-01-23 | 1988-07-26 | Toshiba Corp | Modem device with managing function |
| JPS63248255A (en) * | 1987-04-03 | 1988-10-14 | Hitachi Ltd | On-line data transmission system |
| JPH01264338A (en) * | 1988-04-15 | 1989-10-20 | Hitachi Ltd | Adapter for centralized control |
| JPH01269356A (en) * | 1988-04-21 | 1989-10-26 | Nec Corp | Communication line switching system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03216049A (en) | 1991-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |