JPS6340425A - Communication line switching device - Google Patents

Communication line switching device

Info

Publication number
JPS6340425A
JPS6340425A JP61185698A JP18569886A JPS6340425A JP S6340425 A JPS6340425 A JP S6340425A JP 61185698 A JP61185698 A JP 61185698A JP 18569886 A JP18569886 A JP 18569886A JP S6340425 A JPS6340425 A JP S6340425A
Authority
JP
Japan
Prior art keywords
switch
communication control
communication
line switching
modem
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
Application number
JP61185698A
Other languages
Japanese (ja)
Other versions
JPH0671280B2 (en
Inventor
Kiyoshi Shimura
清 志村
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP61185698A priority Critical patent/JPH0671280B2/en
Publication of JPS6340425A publication Critical patent/JPS6340425A/en
Publication of JPH0671280B2 publication Critical patent/JPH0671280B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Detection And Prevention Of Errors In Transmission (AREA)
  • Communication Control (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE:To ecumenically and relieably select and connect a terminal equipment placed near a data processor and one of plural communication controllers by providing a timing generating means, and selectively supplying a transmission signal element timing signal to the communication controller and the terminal equipment. CONSTITUTION:In case the communication controller 201 is selected, the controller 201 is connected to the respective common contacting points of switches 321 and 322 via respective one contacting point of a switch 311 and that of a switch 312. Another contacting point of the switch 321 is connected to one contacting point of a switch 361, and the common contacting point of the switch 361 is connected to a modem 40. A transmission signal element timing signal is supplied from the modem 40 to the controller 201 via the switches 361, 321, and 311. Also, form the timing generator 332, a transmission signal element timing signal is respectively supplied to the controller 201 and the terminal equipment 702 via drivers 342 and 352, and the switches 322 and 362.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、データ通信の通信回線切換装置に関する。特
に、データ処理装置の近傍に配置され変復調装置を有し
ない端末装置と複数の通信制御装置の一つとを選択して
接続する通信回線切換装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication line switching device for data communication. In particular, the present invention relates to a communication line switching device that selects and connects a terminal device that is disposed near a data processing device and does not have a modem device to one of a plurality of communication control devices.

〔概要〕〔overview〕

本発明はデータ１ｌｌｌ信のｉｍ信回線切換装置におい
て、 ｉ１１１回線切換装置にタイミング発生手段を設け、通
信制御装置および端末装置に送信信号エレメントタイミ
ング信号を選択的に供給するごとにより、データ処理装
置の近傍に配置された端末装置と複数の通信制御装置の
一つとを信顛度高く、かつ経済的に選択して接続できる
ようにしたものである。The present invention provides an IM signal line switching device for 1llll data transmission, in which the i111 line switching device is provided with timing generation means, and by selectively supplying the transmission signal element timing signal to the communication control device and the terminal device, the data processing device can be controlled. It is possible to selectively connect a terminal device located nearby to one of a plurality of communication control devices with high reliability and economically.

〔従来の技術〕[Conventional technology]

従来通信回線切換装置は、データ処理装置の複数の通信
制御装置に接続され、この通信制御装置のうちの一つを
選択してｉｆｆ！信回線に接続し、かりに選択された通
信制御装置に故障が発生した場合には、他の通信制御装
置に接続を切換える。すなわち通信制御装置が故障して
もデータ処理装置のデータ通信手段が継続して使用可能
なように設けられており、切換えられるインタフェース
は国際電信電話諮問委員会（以下、ＣＣＩＴＴという。A conventional communication line switching device is connected to a plurality of communication control devices of a data processing device, selects one of the communication control devices, and selects an IF! If the selected communication control device fails, the connection is switched to another communication control device. That is, even if the communication control device fails, the data communication means of the data processing device is provided so that it can continue to be used, and the interface to be switched is provided by the International Telegraph and Telephone Consultative Committee (hereinafter referred to as CCITT).

）勧告■、２４のような変復調装置−データ端末装置間
インタフェースが採用されている。) A modem-data terminal equipment interface such as Recommendation (2) and 24 has been adopted.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかし、このような従来の通信回線切換装置では、通信
回路と変復調装置とを介して接続することを前提に設訂
されているために、変復調装置−データ端末装置間イン
タフェースのみが設けられ、端末装置と通信制御装置と
を変復調装置を介さずに直接接続することは考慮されて
いなかった。However, such conventional communication line switching equipment is designed on the premise that the communication circuit and the modulation/demodulation equipment are connected, so only an interface between the modulation/demodulation equipment and the data terminal equipment is provided, and the terminal No consideration has been given to directly connecting the device and the communication control device without using a modulation/demodulation device.

このように端末装置と通信制御装置とを変復調装置を介
さずに接続することは端末装置がデータ処理装置の近傍
に設置されている場合に、高価な変復調装置を必要と廿
ず端末装置と通信制御装置とを接続できるために従来よ
り利用されており、特に変復調装置−データ端末装置間
インタフェースを同期式として利用する場合には変復調
装置から供給される送信信号エレメントタイミング（例
えば、ＣＣＩＴＴ勧告■、２４回路１１４）信号を端末
装置に供給する手段を通信制御装置に設けて上記なよう
な直接接続を実現している。すなわち端末装置と複数の
通信制御装置との間に通信回線切換装置を配置した場合
に、端末装置と）ｍ他処理装置との直接接続が考慮され
ていないために、すべての端末装置に高価な変復調装置
を必要とするか、または接続するすべての通信制御装置
に送信信号エレメントタイミング信号を供給するバー］
゛ウェアを必要とするために安価には実現できない欠点
があった。Connecting a terminal device and a communication control device in this way without using a modem device is a convenient way to communicate with the terminal device without requiring an expensive modem device when the terminal device is installed near a data processing device. Conventionally, it has been used to connect with a control device, and especially when the interface between the modem and data terminal device is used as a synchronous type, the transmission signal element timing supplied from the modem (for example, CCITT recommendation ①, 24 circuit 114) A means for supplying a signal to the terminal device is provided in the communication control device to realize the above-mentioned direct connection. In other words, when a communication line switching device is placed between a terminal device and multiple communication control devices, direct connection between the terminal device and other processing devices is not taken into account, so all the terminal devices require an expensive A bar that provides transmit signal element timing signals to all communications control equipment that requires or connects a modem]
It had the disadvantage that it could not be implemented at a low cost because it required hardware.

本発明は上記の欠点を解決するもので、端末装置に高価
な変復調装置を設ける必要がなく、また全ての通信制御
装置に端末装置に送信信号エレメントタイミング信号を
供給するハードウェアを設ける必要がなく、信顛性高く
かつ経済的に複数の通信制御装置の一つとデータ処理装
置の近傍に配置された端末装置とを選択して接続するこ
とができる通信回線切換装置を捉供することを目的とす
る。The present invention solves the above-mentioned drawbacks, and eliminates the need for expensive modem equipment in the terminal equipment, and eliminates the need for all communication control equipment to have hardware for supplying transmit signal element timing signals to the terminal equipment. The purpose of the present invention is to provide a communication line switching device that can select and connect one of a plurality of communication control devices and a terminal device located near a data processing device with high reliability and economically. .

〔問題点を解決するための手段〕[Means for solving problems]

本発明は、複数の通信制御装置の一つを選択し、これを
端末装置または変復調装置と通信回線を介して接続する
通信回線切換装置において、送信信号エレメントタイミ
ング信号を発生するタイミング発生手段と、上記通信制
御装置または上記端末装置にこのタイミング信号を選択
的に供給する手段とを備えたことを特徴とする。The present invention provides a communication line switching device that selects one of a plurality of communication control devices and connects it to a terminal device or a modulation/demodulation device via a communication line, and includes: timing generation means for generating a transmission signal element timing signal; The present invention is characterized by comprising means for selectively supplying the timing signal to the communication control device or the terminal device.

〔作用〕[Effect]

タイミング発生手段で送信信号エレメントタイミング信
号を発生し、供給する手段で端末装置または通信制御装
置に対し送信信号エレメントタイミング信号を選択的に
供給することにより、端末装置に高価な変復調装置を設
ける必要がなく、また全ての通信制御装置に端末装置に
送信信号エレメントタイミング信号を供給するハードウ
ェアを設ける必要がなく、信転性高くかつ経済的にデー
タ処理装置の近傍に配置された端末装置と複数の通信制
御装置の一つとを選択して、接続することができる。The timing generation means generates the transmission signal element timing signal, and the supply means selectively supplies the transmission signal element timing signal to the terminal device or communication control device, thereby eliminating the need to provide the terminal device with an expensive modulation/demodulation device. In addition, there is no need to provide hardware for supplying transmission signal element timing signals to terminal devices in all communication control devices, and it is highly reliable and economical to connect terminal devices and multiple devices located near data processing devices. It is possible to select and connect to one of the communication control devices.

〔実施例〕〔Example〕

本発明の実施例について図面を参照して説明する。 Embodiments of the present invention will be described with reference to the drawings.

図は本発明一実施例通信回線切換装置が適用されるデー
タ通信装置のブロック構成図である。図において、デー
タ処理装置１０は通信制御装置２０８．２０□に接続さ
れ、通信制御装置２０．．２０□はそれぞれ通信回線切
換装置ｆ　３０に接続される。通信回線切換装置３０で
通信制御装置２０．．２０２の内の一つが選択され、通
信回線切換装置３０は変復調装Ｍ４゜に接続され、また
通信回線５０□を介してデータ処理装置１０の近傍に配
置された端末装置７０□に接続される。The figure is a block configuration diagram of a data communication device to which a communication line switching device according to an embodiment of the present invention is applied. In the figure, the data processing device 10 is connected to the communication control device 208.20□, and the data processing device 10 is connected to the communication control device 20.20. ．． 20□ are each connected to a communication line switching device f30. The communication line switching device 30 connects the communication control device 20. ．． 202 is selected, and the communication line switching device 30 is connected to the modem M4°, and is also connected to the terminal device 70□ located near the data processing device 10 via the communication line 50□.

変復調装置４０は通信回線５０．を介して変復調装置６
０に接続され、変復調装置６０は端末装Ｗ７１１に接続
される。通信制御装置２０．．２０□の内の一つが通信
回線切換装置３０で端末装置７０Ｉ、７０□と接続され
る。The modem 40 is connected to a communication line 50. via modem 6
0, and the modem 60 is connected to the terminal W711. Communication control device 20. ．． One of the terminals 20□ is connected to the terminal devices 70I and 70□ by the communication line switching device 30.

ここで本発明の特徴とするところは、一点鎖線で囲むタ
イミング発生部分である。すなわち、切変えられるイン
タフェース信号の内送信信号エレメントタイミング信号
（ＣＣＩＴ’Ｔ勧告Ｖ、２４インタフ工−ス回路１１４
に対応）の通信回線切換装置３０内での接続を示す。ス
イッチ３１．．３１２ばｊｍ信制御装置２０．．２０゜
をｊπ択するスイッチである。Here, the feature of the present invention is the timing generation portion surrounded by a dashed line. That is, among the interface signals to be switched, the transmit signal element timing signal (CCIT'T Recommendation V, 24 interface circuit 114)
(corresponding to) is shown in the communication line switching device 30. Switch 31. ．． 312BJM communication control device 20. ．． This is a switch that selects jπ from 20°.

図む１通信制御装置２０．が選択された場合を示す。Figure 1 Communication control device 20. Indicates when is selected.

スイッチ３２１．３６＋　はタイミング発ｔ１−装置３
３１からの送信信号エレメントタイミング信号を供給す
るか否かを選択するスイッチで図は供給しない場合を示
す。スイッチ３２２．３６□はタイミング発生装置３３
□からの送信信号エレメントタイミング信号を供給する
か否かをｊ巽択するスイッチで図は供給する場合を示す
。ドライバ３４１．３５．．３４□、３５□はタイミン
グ発生装置３３１．３３２からの送信信号エレメントタ
イミング信号の電気的整合をとるために設ＬＪられだも
のである。Switch 321.36+ is timing source t1-device 3
The figure shows a switch for selecting whether or not to supply the transmission signal element timing signal from 31. Switch 322.36□ is timing generator 33
The figure shows the case where the switch selects whether or not to supply the transmission signal element timing signal from □. Driver 341.35. ．． 34□ and 35□ are LJs installed to electrically match the transmission signal element timing signals from the timing generators 331 and 332.

いま、通信制外装Ｎ２０１が選択された場合に、通信制
御装置２０．はスイッチ３１．．３］□の一方の接点を
介してそれぞれスイッチ３２．．３２゜の共通接点に接
続される。スイッチ３２．の一方の接点はスイッチ３６
１　の一方の接点に接続され、スイッチ３６、の共ｉｆ
Ｉ］接点は変復調装置４０に接続される。変復調装置４
０から送信信月エレメントタイミング信号がスイッチ３
６１．３２０．３１１　を介して通信制御装置２０．に
接続される。タイミング発生装置３３１はドライバ３，
１．　、３５．を介してスイッチ３２．．３６゜の他方
の接点に接続されているが使用されない。Now, when the communication control exterior N201 is selected, the communication control device 20. is switch 31. ．． 3] □ through one contact of the switch 32. ．． Connected to a 32° common contact. Switch 32. One contact is the switch 36
1 and the common if of the switch 36.
I] contacts are connected to the modem 40. Modem 4
The transmit element timing signal from 0 to switch 3
61.320.311 via communication control device 20. connected to. The timing generator 331 includes the driver 3,
1. , 35. via switch 32. ．． Connected to the other 36° contact but not used.

また、タイミング発生装置３３２から送信信号エレメン
トタイミング信号がｌライム３４□、３５□およびスイ
ッチ３２□、３６□の他方の接点を介してそれぞれ通信
制御装置２０１　および端末装置７０゜に接続される。Further, a transmission signal element timing signal from the timing generator 332 is connected to the communication control device 201 and the terminal device 70° via the lime 34□, 35□ and the other contacts of the switches 32□, 36□, respectively.

スイッチ３２゜の一方の接点とスイッチ３６２の一方の
接点は接続されているが使用されない。One contact of switch 32° and one contact of switch 362 are connected but not used.

ｉｍ信制御装置２０□が接続された場合には、）ｍ信制
御装置２０□がスイッチ３１１．３１□を介してスイッ
チ３２．．３２□の共１ｉｌｌＩ接点に接続される。ス
イッチ３２１．３６８．３２２．３６□の接続はｉｌｌ
ｌｌ側装置２０、が選択された場合と同様である。When the im communication control device 20□ is connected, the m communication control device 20□ connects to the switch 32. ．． 32□ are both connected to the 1illI contact. The connection of switch 321.368.322.36□ is ill
This is the same as when the ll side device 20 is selected.

このような構成の１ｆｆｌ信回線切換装置の動作につい
て説明する。図において、ｉｔ’ｌｌ常の装置運用時に
は、端末装置７０．．７０□は通信回線切換装置３０が
通信制御装置２０１　を選択することにより、通信制御
装置２０１を介してデータ処理装置１０と接続されてデ
ータ通信を行う。そしてｉｍ信制御装置２０１　で故障
が発生した場合には、通信回線切換装置３０はスイッチ
３１１．３１２で選択を切換えるので、端末装置７０．
．７０□は通信制御装置２０□を介してデータｊｍ信を
続行できる。このために本データ通信装置では、ｉｌｌ
！ｌｌ外信置２０１．２０□の一方が故障しても他方を
使用して端末装置７０．．７０゜の使用者ば業務の遂行
が可能となる。The operation of the 1ffl signal line switching device having such a configuration will be explained. In the figure, during normal device operation, the terminal device 70. ．． When the communication line switching device 30 selects the communication control device 201, the device 70□ is connected to the data processing device 10 via the communication control device 201 to perform data communication. If a failure occurs in the IM communication control device 201, the communication line switching device 30 switches the selection using the switches 311 and 312, so that the terminal device 70.
．． 70□ can continue sending data jm via the communication control device 20□. For this purpose, in this data communication device, ill
! Even if one of the foreign communication stations 201.20□ breaks down, the other terminal device 70. ．． Users with a 70° angle can perform their duties.

また、通信回線切換装置３０ば図に示ずようにデータ処
理装置１０は変復調装置を使用せずに端末装置７０□を
接続できる。ｉｍ常、データ処理装置］０と端末装置と
は図に示す端末装置７０１　のように変復調装置４０．
６０を介して接続される。変復調装置４０．６０はｊＴ
ｌ信凹線５０を介して１ｌＴｌ信を行う他に特に同期式
通信方式においては、端末装置７０．およびｊｍ信制御
装置２０１　に送信信号エレメントタイミング信号の供
給を行う。したがって、端末装置７０１　とｊｍ信制御
装置２０．とを変復調装置を介さずに接続する場合に、
ｊｌＢ信回線切換装置３０でＧ、ｌ、図に示すスイッチ
３１．．３１□によりタイミング発生回路３３２からの
信号を送信信号エメレントタイミング信号としてドライ
バ回路３４２．３５２を介して端末装置７０□と通信制
御装置２０１　　とに供給ずろことができる。このよう
にして端末装置７０□とｉｆｆ！信制御装置２０１　ま
たはｊｍ信制御装置２０□とはあたかも変復調装置を介
して接続されているように１ＪＴｌ信を制御できるので
、特殊なハードウェアを用意する必要がない。Furthermore, as shown in the figure, the communication line switching device 30 can connect the data processing device 10 to the terminal device 70□ without using a modulation/demodulation device. 0 and the terminal device are the modulation and demodulation device 40.0 and the terminal device 701 shown in the figure.
60. The modem 40.60 is jT
In addition to transmitting communications via the communications line 50, especially in the synchronous communication system, the terminal device 70. and supplies a transmission signal element timing signal to the JM communication control device 201. Therefore, the terminal device 701 and the JM communication control device 20. When connecting without using a modem,
In the jlB communication line switching device 30, G, l, switches 31. ．． 31□ allows the signal from the timing generation circuit 332 to be supplied to the terminal device 70□ and the communication control device 201 via the driver circuits 342 and 352 as a transmission signal and an emergent timing signal. In this way, the terminal device 70□ and if! Since the 1JTl signal can be controlled as if it were connected to the communication control device 201 or the JM communication control device 20□ via a modulation/demodulation device, there is no need to prepare special hardware.

なお、本実施例でしＪ変復調装置４０．６０お、Ｊ、び
端末装置７０．．７０□からなるデータｊｍ信装置につ
いて説明したが、さらに複数の変復ＳＩ！１装置および
端末装置を同様に接続することができる。In addition, in this embodiment, J modem equipment 40.60, J, and terminal equipment 70. ．． Although we have described a data jm transmission device consisting of 70□, there are also multiple variable SI! 1 device and a terminal device can be connected similarly.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明（１１，１ｆｆｉ信凹綿切
換装置にタイミング発生回路等を設Ｌｔ、１ｆｆｉ信制
御装置および端末装置に送信信刊エレメントタイミング
信号を選択的に供給することにより、高価な変復調装置
を設ける必要がなく、また全ての通信制御装置に端末装
置に送信信号エレメントタイミング信号を供給するハー
ドウェアを設ける必要がなく、信頼性高くかつ経済的に
複数の通信制御装置の一つとデータ処理装置の近傍に配
置された端末装置とを選択して接続することができる優
れた効果がある。As explained above, the present invention (11, 1ffi transmission switching device is equipped with a timing generation circuit, etc.), and by selectively supplying the transmission element timing signal to the Lt, 1ffi transmission control device and terminal device, an expensive There is no need to install a modem/demodulator, and there is no need to install hardware in every communication control device to supply transmission signal element timing signals to the terminal device. This has the advantage of being able to selectively connect to terminal devices located near the data processing device.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明一実施例通信回線切換装置が適用されるデー
タ通信装置のブロック構成図。 １０・・・データ処理装置、２０１．２０□・・・通信
制御装置、３０・・・通信回線切換装置、３］、、３１
□、３２１．３２ｇ　、３６．　、３６□・・・スイッ
チ、３３Ｉ、３３□・・・タイミング発生装置、３４．
．３４□、３５３．３５゜・・・ドライバ、４０．６０
・・・変復調装置、５０．．５０□・・・′４信回線、
７０．．７０□・・・端末装置。The figure is a block configuration diagram of a data communication device to which a communication line switching device according to an embodiment of the present invention is applied. 10...Data processing device, 201.20□...Communication control device, 30...Communication line switching device, 3], 31
□, 321.32g, 36. , 36□... switch, 33I, 33□... timing generator, 34.
．． 34□, 353.35°...Driver, 40.60
...modulation/demodulation device, 50. ．． 50□...'4 communication line,
70. ．． 70□...Terminal device.

Claims (1)

【特許請求の範囲】[Claims] （１）複数の通信制御装置の一つを選択し、これを端末
装置または変復調装置と通信回線を介して接続する通信
回線切換装置において、 送信信号エレメントタイミング信号を発生するタンミン
グ発生手段と、 上記通信制御装置または上記端末装置にこのタイミング
信号を選択的に供給する手段と を備えたことを特徴とする通信回線切換装置。(1) In a communication line switching device that selects one of a plurality of communication control devices and connects it to a terminal device or a modem device via a communication line, a timing generating means for generating a transmission signal element timing signal; A communication line switching device comprising means for selectively supplying the timing signal to a communication control device or the terminal device.
JP61185698A 1986-08-06 1986-08-06 Communication line switching device Expired - Lifetime JPH0671280B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61185698A JPH0671280B2 (en) 1986-08-06 1986-08-06 Communication line switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61185698A JPH0671280B2 (en) 1986-08-06 1986-08-06 Communication line switching device

Publications (2)

Publication Number Publication Date
JPS6340425A true JPS6340425A (en) 1988-02-20
JPH0671280B2 JPH0671280B2 (en) 1994-09-07

Family

ID=16175302

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61185698A Expired - Lifetime JPH0671280B2 (en) 1986-08-06 1986-08-06 Communication line switching device

Country Status (1)

Country Link
JP (1) JPH0671280B2 (en)

Also Published As

Publication number Publication date
JPH0671280B2 (en) 1994-09-07

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