JPS6333337B2 - - Google Patents
Info
- Publication number
- JPS6333337B2 JPS6333337B2 JP21651882A JP21651882A JPS6333337B2 JP S6333337 B2 JPS6333337 B2 JP S6333337B2 JP 21651882 A JP21651882 A JP 21651882A JP 21651882 A JP21651882 A JP 21651882A JP S6333337 B2 JPS6333337 B2 JP S6333337B2
- Authority
- JP
- Japan
- Prior art keywords
- backup
- line
- modem
- terminal side
- lines
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Description
【発明の詳細な説明】
本発明はデータ回線及び変復調装置の故障時の
バツクアツプ装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a backup device in the event of a failure in a data line and modem device.
従来、この種のバツクアツプ装置は、バツクア
ツプ用の回線の他に、バツクアツプを制御するた
めの制御信号の送受信部を必要とした。 Conventionally, this type of backup device has required a transmission/reception unit for control signals for controlling backup in addition to a backup line.
本発明は、バツクアツプ用回線として、２回線
の交換回線を使用し、その交換回線への着信順序
を判定することにより、回線のバツクアツプか、
変復調装置のバツクアツプかを識別、制御するこ
とにより、センター側における制御信号の送信
部、端末側における受信部を不要としたデータ回
線バツクアツプ装置を提供するものである。 The present invention uses two switched lines as backup lines, and determines the order in which calls arrive at the switched lines.
The present invention provides a data line backup device that eliminates the need for a control signal transmitting section on the center side and a receiving section on the terminal side by identifying and controlling whether the modem is being backed up.
本発明は、端末側において２回線のバツクアツ
プ回線の着信順序を判定する手段と、その判定結
果に応じて回線又は変復調装置のいずれかを切替
える手段と、バツクアツプ回線の受信側の信号の
有無を検出する手段と、その検出の有無の継続時
間を測定する手段と、その測定の結果、無信号が
一定時間継続した時、バツクアツプを復旧させる
手段とにより構成される。 The present invention provides means for determining the order of arrival of two backup lines on the terminal side, means for switching either the line or the modem according to the determination result, and detecting the presence or absence of a signal on the receiving side of the backup line. A means for measuring the duration of detection, and a means for restoring the backup when no signal continues for a certain period of time as a result of the measurement.
次に本発明の実施例について図面を参照して説
明する。 Next, embodiments of the present invention will be described with reference to the drawings.
図において、１，２はセンター側機器を表わ
し、６〜１０は端末側機器を表す。４はその間を
結ぶデータ回線（４線式）、３と５はバツクアツ
プ用の交換回線の交換装置を表す。図では、セン
ター側の操作により、端末側のバツクアツプを自
動的に行なう場合について説明する。 In the figure, 1 and 2 represent center side devices, and 6 to 10 represent terminal side devices. Reference numeral 4 represents a data line (4-wire type) connecting between them, and 3 and 5 represent exchange equipment for the backup exchange line. In the figure, a case will be explained in which backup on the terminal side is automatically performed by operation on the center side.
先ず、データ回線４が傷害になつた時、その回
線をバツクアツプする動作について順を追つて説
明する。 First, when the data line 4 becomes damaged, the operation for backing up the line will be explained step by step.
センター側の回線切替部２を交換回線側に切替
え、ダイアル操作により、端末側の回線１１（２
線式）を呼出す。端末側の着信判定部７では１１
からの着信を検出し、ループを構成した後、着信
トーンを返送する。次にセンター側より回線１２
（２線式）を呼出し、同様の動作を行なう。着信
判定部では回線１１と１２の着信順序を判定し
（この場合１１→１２の時は回線のバツクアツプ
と定義しておく）、その判定結果により端末側回
線切替部６を交換回線側に切替える。 Switch the line switching unit 2 on the center side to the switched line side, and dial the line 11 (2) on the terminal side.
(wire system). 11 in the incoming call determination unit 7 on the terminal side.
After detecting an incoming call from and forming a loop, it sends back the incoming tone. Next, line 12 from the center side
(2-wire system) and perform the same operation. The incoming call determination unit determines the order of incoming calls on lines 11 and 12 (in this case, 11→12 is defined as line backup), and based on the determination result, switches the terminal side line switching unit 6 to the switched line side.
以上で回線のバツクアツプ動作は完了する。バ
ツクアツプの復旧は、センタ側からの変調信号を
着信判定部７により検出することにより、一定時
間以上無信号になつた時バツクアツプを復旧させ
るものとする。 This completes the line backup operation. The backup is restored by detecting a modulated signal from the center side by the incoming call determining section 7, and when there is no signal for a certain period of time or more, the backup is restored.
次に変復調装置のバツクアツプについて順を追
つて説明する。変復調装置８が故障になつた時、
センター側より回線１２，１１の順で呼出す。こ
の時、回線切替部２は切替えない。着信判定部７
では、この着信順序を判定し、変復調装置切替部
１０を切替え、予備側の変復調装置９を現用側と
すると同時に、着信判定部７より切替完了音を返
送し、回線１１，１２を解放する。 Next, backup of the modem will be explained step by step. When the modem 8 becomes out of order,
The center side calls lines 12 and 11 in that order. At this time, the line switching unit 2 does not switch. Incoming call determination unit 7
Then, the incoming call order is determined, the modem switching unit 10 is switched, and the modem/demodulator 9 on the standby side becomes the working side, and at the same time, a switching completion tone is sent back from the incoming call determining unit 7, and the lines 11 and 12 are released.
本発明は以上説明した様に、特別な制御信号の
送受信を行なうことなく、回線バツクアツプ、変
復調装置のバツクアツプをセンター側からの操作
だけで行なうことが可能であるため、端末側のバ
ツクアツプ装置が簡易で小型になるという利点が
ある。 As explained above, the present invention allows line backup and modulation/demodulation device backup to be performed only from the center side without transmitting/receiving special control signals, making it possible to simplify the backup device on the terminal side. It has the advantage of being compact.
図は本発明の実施例を表す系統図である。
１……センター側変復調装置、２……回線切替
部、３……交換装置、４……データ回線、５……
交換装置、６……回線切替部、７……着信判定
部、８，９……端末側変復調装置（現用、予備）、
１０……変復調装置切替部。
The figure is a system diagram representing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Center side modem, 2...Line switching unit, 3...Switching device, 4...Data line, 5...
Switching device, 6... Line switching unit, 7... Incoming call determination unit, 8, 9... Terminal side modem device (current use, standby),
10...Modulator/demodulator switching unit.
Claims (1)
着信順序を判定する手段と、その判定結果に応じ
て回線又は変復調装置のいずれかを切替える手段
と、バツクアツプ回線の受信側の信号の有無を検
出する手段と、その検出の有無の継続時間を測定
する手段と、その測定の結果、無信号が一定時間
継続した時、バツクアツプを復旧させる手段とを
具備して成ることを特徴とするデータ回線バツク
アツプ装置。1. Means for determining the order of arrival of the two backup lines on the terminal side, means for switching either the line or the modem according to the determination result, and means for detecting the presence or absence of a signal on the receiving side of the backup line. , means for measuring the duration of the presence or absence of detection, and means for restoring backup when no signal continues for a certain period of time as a result of the measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21651882A JPS59105724A (en) | 1982-12-09 | 1982-12-09 | Back-up device of data circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21651882A JPS59105724A (en) | 1982-12-09 | 1982-12-09 | Back-up device of data circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59105724A JPS59105724A (en) | 1984-06-19 |
| JPS6333337B2 true JPS6333337B2 (en) | 1988-07-05 |
Family
ID=16689686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21651882A Granted JPS59105724A (en) | 1982-12-09 | 1982-12-09 | Back-up device of data circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59105724A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4866602B2 (en) * | 2005-12-27 | 2012-02-01 | 株式会社サンセイアールアンドディ | Game machine |
| JP4947438B2 (en) * | 2008-08-05 | 2012-06-06 | 日本精機株式会社 | Switch device in a vehicle instrument |
-
1982
- 1982-12-09 JP JP21651882A patent/JPS59105724A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59105724A (en) | 1984-06-19 |
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