JPS58220541A - Terminal circuit switching device - Google Patents

Terminal circuit switching device

Info

Publication number
JPS58220541A
JPS58220541A JP10303382A JP10303382A JPS58220541A JP S58220541 A JPS58220541 A JP S58220541A JP 10303382 A JP10303382 A JP 10303382A JP 10303382 A JP10303382 A JP 10303382A JP S58220541 A JPS58220541 A JP S58220541A
Authority
JP
Japan
Prior art keywords
request
circuit
command
terminal
computer system
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
Application number
JP10303382A
Other languages
Japanese (ja)
Inventor
Muneharu Okamura
岡村　宗治
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10303382A priority Critical patent/JPS58220541A/en
Publication of JPS58220541A publication Critical patent/JPS58220541A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4004—Coupling between buses
    • G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Multi Processors (AREA)
  • Information Transfer Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

PURPOSE:To execute easily an optional connection of plural computer systems and plural terminal equipments, by executing the control of a communication circuit switching matrix circuit by a command from the terminal equipment, which is transmitted through a circuit. CONSTITUTION:In case when a user gives a request for connecting a terminal equipment Tn to a computer system 2, this request passes through its terminal circuit as a command and is stored in a command register 6-n. Two kinds of a connecting request and a detaching request exist in the command. A circut connection controlling circuit 5 contains a clock device, reads connecting command registers 6-1, 6-2,...6-n periodically, for instance, at intervals of 0.1sec in accordance with its clock signal, and also clears its registers. When the read contents are a connecting request, a state of a switching matrix in a circuit switching device 4 is checked as to whether the requested computer system is not connected to other terminal equipment. If it is not connected yet, the circuit is connected in accordance with the connecting request.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、計算機システムとその端末装置間の通信回線
制御装置に関するものでちる。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a communication line control device between a computer system and its terminal device.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

計算機システムを端末装置から遠隔利用する機会が増し
ており、複数の計算機システムを同一個所から利用する
場合、複数の端末装置を併設しなければならない不便が
あった。電話回線を経由する場合は、電話交換機が１台
の端末装置から複数計算機システムへ接続を可能にする
。しかし、同一構内に複数計算機システムが存在する場
合などでは、専用回線が設置される。端末装置は利用者
の近傍に設置されるから小形軽量であることが望まれる
。複数の計算機システムが在る環境では１台の端末装置
からいずれの計算機システムとも接続できることが望ま
れている。端末装置も複数あるのが通常であるから、例
えば、ｍ個の計算機システム１，２．・・・・・・１ｍ
とｎ個の端末装置ＴＩ、Ｔ２゜・・・・・Ｔｎ　　とを
任意に接続する通信回線交換装置が必要とされる。Opportunities for using computer systems remotely from terminal devices are increasing, and when using multiple computer systems from the same location, it is inconvenient that multiple terminal devices must be installed together. When using a telephone line, a telephone exchange makes it possible to connect a single terminal device to multiple computer systems. However, in cases where multiple computer systems exist within the same premises, dedicated lines are installed. Since the terminal device is installed near the user, it is desired that the terminal device be small and lightweight. In an environment where there are multiple computer systems, it is desirable to be able to connect to any of the computer systems from one terminal device. Since there are usually multiple terminal devices, for example, m computer systems 1, 2, .・・・・・・1m
A communication line switching device is required to arbitrarily connect the terminal equipment TI, T2°, . . .

〔発明の目的〕[Purpose of the invention]

本発明の目的は、複数の計算機システムと複数の端末装
置との任意の接続を容易に行うことができる回線交換装
置を提供することにある。An object of the present invention is to provide a line switching device that can easily establish arbitrary connections between a plurality of computer systems and a plurality of terminal devices.

また本発明の他の目的は、端末装置から任意の計算機シ
ステムへの接続と切離しを自動的に行う回線交換装置を
提供することにおる。Another object of the present invention is to provide a line switching device that automatically connects and disconnects a terminal device to and from any computer system.

〔発明の概要〕[Summary of the invention]

本発明の特徴とするところは、回線経由伝送される端末
装置からのコマンドにより通信回線切替えマトリクス回
路の制御を行わせる所におる。A feature of the present invention is that the communication line switching matrix circuit is controlled by commands from the terminal device transmitted via the line.

〔発明の実施例〕[Embodiments of the invention]

本発明の一実施例を第１図に示した。ｍ台の計算機シス
テム１，２．・・・１ｍは、ｎ台の端末装置Ｔｌ、Ｔ２
．・・・Ｔｎと回線交換装置４を介して接続されている
。該交換装置４は、第２図に示した回線切替えマトリク
ス回路を持ち、任意の計算機システムと任意の端末装置
との接続が可能でちる。第２図では黒丸で示した点が閉
じた接点を表わしている。すなわち、計算機システム１
は端末装置Ｔ１と接続されている。同様に、計算機シス
テム２は端末装置Ｔ３と接続されている。An embodiment of the present invention is shown in FIG. m computer systems 1, 2. ...1m is n terminal devices Tl, T2
．． ...Tn via the line switching device 4. The switching device 4 has a line switching matrix circuit shown in FIG. 2, and can connect any computer system and any terminal device. In FIG. 2, the points indicated by black circles represent closed contacts. That is, computer system 1
is connected to the terminal device T1. Similarly, the computer system 2 is connected to a terminal device T3.

回線接続の開閉はリレーによっても半導体素子によって
も実現できる。第２−の場合、計算機システムｍは端末
装置Ｔｎに接続している。いま、端末装置Ｔｎの利用者
が計算機システム２との接続を欲したとする。このとき
２とＴｎの接続、第２図の白丸で示した点を閉じると、
計算機システム２には端末装置Ｔ３とＴｎとが接続され
ることになる不都合が生じるので、第１図には、回線接
続制御回路５と接続コマンドデータを貯えるレジスタ６
−１．６−２．・・６−ｎが用意されている。The opening and closing of line connections can be realized both by relays and by semiconductor elements. In the second case, the computer system m is connected to the terminal device Tn. Suppose now that the user of the terminal device Tn wants to connect to the computer system 2. At this time, if we close the connection between 2 and Tn, the point indicated by the white circle in Figure 2, we get
Since the computer system 2 is inconveniently connected to the terminal devices T3 and Tn, FIG. 1 shows a line connection control circuit 5 and a register 6 for storing connection command data.
-1.6-2. ...6-n is available.

利用者が端末装置Ｔｎを計算機システム２に接続する要
求を出した場合、この要求は、コマンドとしてその端末
回線を経由し、コマンドレジスタ６−ｎに貯えられる。When a user issues a request to connect the terminal device Tn to the computer system 2, this request is sent as a command via the terminal line and stored in the command register 6-n.

コマンドには接続要求と切離し要求の２種が存在する。There are two types of commands: a connection request and a disconnection request.

接続要求の場合には、コマンド識別情報の他に接続すべ
き計算機システムの識別符号を含む。したがって、接続
要求は最小限度２文字、情報量として２バイト（１バイ
トは８ビツト）必要とする。接続要求と切離し要求のコ
マンドとしては、通常の計算機システム利用において使
用しない文字符号を採用する。In the case of a connection request, it includes the identification code of the computer system to be connected in addition to the command identification information. Therefore, a connection request requires at least two characters and an amount of information of two bytes (one byte is 8 bits). For connection request and disconnection request commands, character codes that are not used in normal computer system use are used.

回線接続制御回路５は、時計装置を内蔵し、そのクロッ
ク信号に従って周期的に、例えば０．１秒間隔で接続コ
マンドレジスタ６−１．６−２．・・・　６−ｎ　Ｉ！
：読み取シ、かつ、そのレジスタをクリアする。読み取
った内容が接続要求であるときは、要求された計算機シ
ステムが他の端末装置と接続されていないかどうか回線
交換装置４内の切替えマトリクスの状態を調べる。未接
続ならば、接続要求に従って回線を接続する。要求を出
した端末Ｔｎが接続しようとする計算機システムと接続
している場合はその接続を解除する。また、接続しよう
とする計算機システムがすでに他端末装置と接続されて
いる場合は、接続要求を棄却する。一方、切離し要求の
場合は、制御回路５が直ち罠その要求を実行する。The line connection control circuit 5 has a built-in clock device, and periodically, for example, at 0.1 second intervals, the connection command registers 6-1, 6-2. ... 6-n I!
: Read and clear the register. If the read content is a connection request, the state of the switching matrix in the line switching device 4 is checked to see if the requested computer system is connected to another terminal device. If the line is not connected, the line is connected according to the connection request. If the terminal Tn that issued the request is connected to the computer system to which it is trying to connect, the connection is canceled. Furthermore, if the computer system to which the connection is attempted is already connected to another terminal device, the connection request is rejected. On the other hand, in the case of a disconnection request, the control circuit 5 immediately executes the request.

本発明の実施において、計算機システムと端末装置とを
結ぶ通信回線は、一対の信号線でも、あるいは送受信分
離した２対の信号線であってもよい０ 〔発明の効果〕 以と説明したように本発明によれば、通信回線を切替え
るリレー及び接続／切離しコマンドを解読実行する制御
回路のみを用いて、複数の端末装置と複数の計算機シス
テムとの任意の接続が可能になる。その結果、複雑化し
多様化した計算機利用に対応した多様な計算機を対象と
するプログラムの開発環境を提供する。個々の端末装置
から多種の計算機システムの利用を可能とするので、端
末装置の利用度を高める効果が太きい。In carrying out the present invention, the communication line connecting the computer system and the terminal device may be a pair of signal lines or two pairs of signal lines with separate transmission and reception. [Effects of the Invention] As explained below. According to the present invention, arbitrary connections between a plurality of terminal devices and a plurality of computer systems can be made using only a relay that switches communication lines and a control circuit that decodes and executes connection/disconnection commands. As a result, we provide a development environment for programs targeted at a variety of computers that are compatible with increasingly complex and diversified computer usage. Since it is possible to use various computer systems from individual terminal devices, the effect of increasing the utilization of the terminal devices is significant.

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

第１図は本発明にかかわる端末回線切替え装置付き複数
台計算機システムの一実施例を示す図、第２図は回線切
替えマトリクス回路図である。 １．２．・・・１ｍ・・・計算機システム’ｒｉ　、Ｔ
２　、・＋、　Ｔｎ　一端末ｍｈ４・・・回線切替えマ
トリクス回路 ５・・・回線切替え制御回路 ６−１．６−２．・・・５−ｎ　・・・接続／切離しコ
マンドレジスタFIG. 1 is a diagram showing an embodiment of a multi-computer system with a terminal line switching device according to the present invention, and FIG. 2 is a circuit diagram of a line switching matrix. 1.2. ...1m...computer system'ri, T
2,...+, Tn One terminal mh4...Line switching matrix circuit 5...Line switching control circuit 6-1.6-2. ...5-n ...Connection/disconnection command register

Claims (1)

【特許請求の範囲】[Claims] 複数の計算機システム及び複数の端末装置との間の通信
回線を備え、該計算機システム回線を行要素、該端末装
置回線を列要素とした回線切替えマトリクス回路におい
て、端末装置回線側に並列に接続または切離しコマンド
を貯えるレジスタ群とそのコマンド内容を周期的に読取
って、接続または切離し動作を判定する回線接続制御回
路を具備することを特徴とする端末回線切替え装置。In a line switching matrix circuit comprising communication lines between a plurality of computer systems and a plurality of terminal devices, with the computer system lines as row elements and the terminal device lines as column elements, connected in parallel to the terminal device line side or 1. A terminal line switching device comprising a register group that stores disconnection commands and a line connection control circuit that periodically reads the contents of the commands and determines connection or disconnection operations.
JP10303382A 1982-06-17 1982-06-17 Terminal circuit switching device Pending JPS58220541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10303382A JPS58220541A (en) 1982-06-17 1982-06-17 Terminal circuit switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10303382A JPS58220541A (en) 1982-06-17 1982-06-17 Terminal circuit switching device

Publications (1)

Publication Number Publication Date
JPS58220541A true JPS58220541A (en) 1983-12-22

Family

ID=14343341

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10303382A Pending JPS58220541A (en) 1982-06-17 1982-06-17 Terminal circuit switching device

Country Status (1)

Country Link
JP (1) JPS58220541A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988008167A1 (en) * 1987-04-06 1988-10-20 Lee Data Corporation Parallel networking architecture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988008167A1 (en) * 1987-04-06 1988-10-20 Lee Data Corporation Parallel networking architecture

Similar Documents

Publication Publication Date Title
EP0233373B1 (en) Programmable communication card
US4149238A (en) Computer interface
CZ9701508A3 (en) Computer system with busbar interface
JPS62227243A (en) Transmission control system
US6154785A (en) Inter-processor communication system
KR940012160A (en) Expandable central processing unit
JPS6115263A (en) Control system for command transfer between processors
JPS58220541A (en) Terminal circuit switching device
CN103678244A (en) Intelligent device without application processor
JPS60194647A (en) Data transmission system
KR970002412B1 (en) Communication coprocessor board capable of using dma
KR100242690B1 (en) Control device of subsystem using address line
KR19980055995A (en) Communication system with redundancy to prevent loss of communication data between processors
SU521559A1 (en) Multiplex channel multiprocessor computing system
KR100241744B1 (en) Method for transmitting and receiving data in a smart phone capable of connecting to a plurality of external device
SU794630A1 (en) Information exchange device
JPH06224975A (en) Method for resetting modules connected with each other, and system using this method
SU1587532A1 (en) Device for interfacing processors in multiple-processor system
KR100440199B1 (en) Method for Providing Status Information for Management in Router System
SU1513465A1 (en) Device for interfacing users with computer
KR930005844B1 (en) Switching device for cascade of multilevel interconnection
SU1357971A1 (en) Device for interfacing computer with computing system
SU1427372A1 (en) Device for interfacing computer with subscribers
SU1278866A1 (en) Interface for linking electronic computer with group of peripheral units
JPH08249575A (en) Crime preventing receiver