JPS6058747A - Multiple address communication system in store and forward exchange - Google Patents

Multiple address communication system in store and forward exchange

Info

Publication number
JPS6058747A
JPS6058747A JP16652283A JP16652283A JPS6058747A JP S6058747 A JPS6058747 A JP S6058747A JP 16652283 A JP16652283 A JP 16652283A JP 16652283 A JP16652283 A JP 16652283A JP S6058747 A JPS6058747 A JP S6058747A
Authority
JP
Japan
Prior art keywords
line
terminal
line control
control unit
busy
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
JP16652283A
Other languages
Japanese (ja)
Inventor
Mineo Sasaki
佐々木 峰夫
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
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16652283A priority Critical patent/JPS6058747A/en
Publication of JPS6058747A publication Critical patent/JPS6058747A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/16Arrangements for providing special services to substations
    • H04L12/18Arrangements for providing special services to substations for broadcast or conference, e.g. multicast

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

PURPOSE:To improve the processing capability of a store and forward exchange by providing a storage section of operating state information of terminal line and a bus between line control units, transferring a data via the bus between line control units, adding a number of a busy line to a busy line and storing it in a magnetic disc to decrease the number of times of access to the magnetic disc. CONSTITUTION:When multiple address communication from a terminal device A to terminal devices B-F is generated, a line control unit 4 connected to the terminal device A references the stored content of the terminal line operating state information storage section 14 and when the terminal devices B-F are all idle, the transmission data is transmitted to the terminal devices via the bus 13 between the line control units. If the terminal devices C and F are busy, the line number of the terminal devices C and F is added to the transmission data from the terminal device A, the result is transferred to the magnetic disc 12 and a central controller 8 via a channel interface unit 6 to store the said data to the magnetic disc 12.

Description

【発明の詳細な説明】 発明の属する技術分野 本発明は、蓄積交換機における回報通信方式に関する。[Detailed description of the invention] Technical field to which the invention belongs TECHNICAL FIELD The present invention relates to a broadcast communication system in a storage/exchange machine.

従来技術 従来、蓄積交換機においては、第1図に示すように、複
数の送受信端末A−Fはそれぞれ変復調装置(MDM)
2および回線アダプタ(LA)3を介して回線制御ユニ
ツ) (LCU)4に接続されており、例えば、端末A
から端末B、C,D。
BACKGROUND TECHNOLOGY Conventionally, in a storage and exchange system, as shown in FIG.
2 and a line adapter (LA) 3 to a line control unit (LCU) 4. For example, terminal A
to terminals B, C, and D.

E、Fへの同報通信が発生した場合は、端末Aから送出
された情報は、変復調装置29回線アダプタ3および回
線制御ユニット4を経由してチャネルインタフェースユ
ニット(CIU)6を介して磁気ディスク12に一旦蓄
積された後に、中央制御装置(CC)8から端末B−F
に対して起動をかけ、磁気ディスク■2に蓄積された情
報を送出するという方式が採用ごれている。
When broadcast communication to E and F occurs, the information sent from terminal A is transferred to the magnetic disk via the modem 29 line adapter 3 and line control unit 4 via the channel interface unit (CIU) 6. 12, from the central control unit (CC) 8 to the terminals B-F.
A method has been adopted in which the information stored on the magnetic disk (2) is sent out by activating the magnetic disk (2).

」二記起動時に、例えば端末Cと端末Fが話中であるよ
うなときは、端末B、D、Eへの情報の転送が終了した
後、端末C,Fがアイドルになった時点で端末C,Fへ
起動をかけて前記蓄積した情報を再び送信しなければな
らない、従って、上述の従来方式は、磁気ディスク12
へのアクセス回数が多く、そのために中央制御装置8の
処理能力が減少するという欠点がある。なお、同図中、
参照数字5は複数の回線制御ユニット4と蓄積交換機間
で授受されるデータを乗せるためのLCBバス、7はデ
ータチャネル(DCH)10 、磁気ディスク制御装置
(DKC)l 1 、チャネルインタフェースユニツ)
 (CIU)6等に接続された統合バス(HIB)、9
は主記憶部(MM) 、10はデータチャネル、11は
磁気ディスク制御装置である。
” 2) When starting, for example, if terminals C and F are busy, the terminals will start when terminals C and F become idle after the information transfer to terminals B, D, and E is completed. Therefore, in the above-mentioned conventional method, it is necessary to activate the magnetic disks 12 and 12 and transmit the accumulated information again.
The disadvantage is that the number of accesses is large, which reduces the processing capacity of the central control unit 8. In addition, in the same figure,
Reference numeral 5 is an LCB bus for carrying data exchanged between the plurality of line control units 4 and the storage exchanger, 7 is a data channel (DCH) 10, a magnetic disk controller (DKC) l1, a channel interface unit).
(CIU) Integrated bus (HIB) connected to 6 etc., 9
1 is a main memory (MM), 10 is a data channel, and 11 is a magnetic disk controller.

発明の目的 本発明の目的は、上述の従来の欠点を解決し、回報通信
時における磁気ディスクへのアクセスの回数をできるだ
け減少させることにより蓄積交換機の処理能力を向上さ
せることができる蓄積交換機における回報通信方式を提
供することにある。
OBJECTS OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional drawbacks and to improve the processing capacity of a storage-and-forwarding machine by reducing the number of accesses to a magnetic disk during broadcasting communications as much as possible. The goal is to provide a communication method.

発明の構成 本発明の同報通信方式は、それぞれ回線アダプタおよび
変復調装置を介して送受信端末を接続した回線制御ユニ
ットと、前記回線制御ユニットを複数個接続し各回線制
御ユニットと蓄積交換機とのインタフェースをとるチャ
ネルインタフェースユニットとを備えて、各送受信端末
間の回報通信は、前記蓄積交換機に一旦蓄積した後に宛
先受信端末に伝送するようにした蓄積交換機間8前記回
線制御ユニットはそれぞれ各端末回線の使用状態を保持
する端末回線使用状況情報保持部を備え、前記複数の回
線制御ユニットを相互接続する回線制御ユニット間バス
を設けて、任意の送信端末から回報通信が発せられたと
きは、当該端末を接続した前記回線制御ユニットはアイ
ドル中の宛先端末に対しては前記回線制御ユニット間バ
スを介して前記回報通信を伝送し、話中回線がある場合
は当該話中回線番号を付加して前記送信端末からの情報
を前記チャネルインタフェースユニットを介して前記蓄
積交換機に蓄積させ、前記蓄積交換機は前記話中回線が
アイドル状態になった後に上記蓄積した情報を前記話中
であった端末に送出することを特徴とする。
Structure of the Invention The broadcast communication system of the present invention includes a line control unit to which transmitting/receiving terminals are connected via a line adapter and a modem, respectively, and a plurality of the line control units connected to each other and an interface between each line control unit and a storage/switching device. 8. The line control unit is equipped with a channel interface unit for transmitting and receiving terminals, and the circuit between the storage and exchangers is configured so that the broadcast communication between each transmitting and receiving terminal is stored once in the storage and exchanger and then transmitted to the destination receiving terminal. A terminal line usage status information holding unit that maintains the usage status is provided, and an inter-line control unit bus is provided that interconnects the plurality of line control units, and when a relay communication is issued from any transmitting terminal, the terminal The line control unit connected to the above transmits the broadcast communication to the idle destination terminal via the line control unit inter-unit bus, and if there is a busy line, adds the busy line number and sends the message to the idle destination terminal. Information from the transmitting terminal is stored in the storage and exchange via the channel interface unit, and the storage and exchange transmits the stored information to the busy terminal after the busy line becomes idle. It is characterized by

発明の実施例 次に、本発明について、図面を参照して詳細に説明する
Embodiments of the Invention Next, the present invention will be described in detail with reference to the drawings.

第2図は、本発明の一実施例を示すブロック図である。FIG. 2 is a block diagram showing one embodiment of the present invention.

すなわち、複数の回線制御ユニット4を回線制御ユニッ
ト間バス13で相互接続し、かつ、それぞれの回線制御
ユニット4は端末回線使用状況情報保持部14を備えて
いる。端末回線使用状況情報保持部14は、例えばLC
Bバス5をモニタすることにより、各端末の使用状況を
保持している。
That is, a plurality of line control units 4 are interconnected by an inter-line control unit bus 13, and each line control unit 4 is provided with a terminal line usage status information holding section 14. The terminal line usage information holding unit 14 is, for example, an LC
By monitoring the B bus 5, the usage status of each terminal is maintained.

今、例えば端末Aから端末B−Fへの同報通信が発生す
ると、端末Aに接続された回線制御ユニット4は、宛先
番号によって端末B−Fへの回報通信であることを知る
。そして、端末回線使用状況情報保持部14の保持内容
を参照して端末B〜Fがすべてアイドル状態であれば、
回線制御ユニット間バス13を介してこれらの端末に接
続された回線#御ユニット4に起動をかけ、端末Aから
送られた送信データを転送する。受信端末B−Fに接続
された各回線制御ユニット4は上記データをそれぞれの
端末に送信する。
For example, when broadcast communication occurs from terminal A to terminal B-F, the line control unit 4 connected to terminal A knows from the destination number that the broadcast communication is to terminal B-F. Then, referring to the contents held in the terminal line usage information holding unit 14, if all terminals B to F are in an idle state,
The line control unit 4 connected to these terminals via the line control unit inter-unit bus 13 is activated, and the transmission data sent from terminal A is transferred. Each line control unit 4 connected to receiving terminals B-F transmits the above data to the respective terminals.

端末B−Fのうち、いずれか1つ以上の端末に接続され
た回線が使用中であるときは、端末Aに接続された回線
制御ユニット4は端末回線使用状況情報保持部14の内
容によって話中回線を知り、例えば、端末CとFが話中
である場合は、端末B、D、’Eに対しては上述と同様
に回線制御ユニット間バス13を経由してデータを転送
し、また、上記端末Aかもの送信データに端末CとFの
回線番号を付加し、チャネルインタフェースユニット6
を介して中央制御装置8.磁気ディスク12に転送して
該データを磁気ディスク12に格納させる。その後、端
末CとFの回線がアイドル状態となった時点で、中央制
御装置8は磁気ディスク12から前記データを取り出し
て端末CとFの回線に接続された回線制御ユニット4を
起動して上記データを送信させる。
When a line connected to one or more of terminals B-F is in use, the line control unit 4 connected to terminal A performs communication according to the contents of the terminal line usage information holding unit 14. For example, if terminals C and F are busy, data is transferred to terminals B, D, and 'E via the line control unit inter-unit bus 13 in the same manner as described above, and , the line numbers of terminals C and F are added to the data transmitted by terminal A, and the channel interface unit 6
via the central control unit 8. The data is transferred to the magnetic disk 12 and stored in the magnetic disk 12. Thereafter, when the line between terminals C and F becomes idle, the central controller 8 retrieves the data from the magnetic disk 12 and starts the line control unit 4 connected to the line between terminals C and F. Let the data be sent.

発明の効果 以上のように、本発明においては、端末回線使用状況情
報保持部および回線制御ユニット間バスを設けて、回報
通信時に宛先端末に接続された回線がアイドル状態であ
れば、前記回線制御ユニット間バスを介してデータを転
送し、話中回線に対しては、前記データに当該話中回線
の番号を付加して磁気ディスクに蓄積させて、上記話中
回線がアイドル状態となった時点で前記磁気ディスクに
蓄積された前記データを送出するように構成したから、
磁気ディスクへのアクセス回数を低減し、蓄積交換機の
処理能力が向−ヒするという効果を有する。
Effects of the Invention As described above, in the present invention, a terminal line usage information holding unit and a bus between line control units are provided, and if the line connected to the destination terminal is in an idle state at the time of broadcast communication, the line control is performed. Data is transferred via the inter-unit bus, and for a busy line, the data is appended with the number of the busy line and stored on a magnetic disk, and when the busy line becomes idle. Since the data stored on the magnetic disk is configured to be sent out,
This has the effect of reducing the number of accesses to the magnetic disk and increasing the processing capacity of the storage/exchange device.

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

第1図は従来の蓄積交換機における回報通信方式の一例
を示すブロック図、第2図は本発明の一実施例を示すブ
ロック図である。 図において、2:変復調装置、3:回線アダプタ、4:
回線制御ユニット、5 : LCBバス、6:チャネル
インタフェースユニット、7:統合バス、8:中央制御
装置、9:主記憶部、lO:データチャネル、11:磁
気ディスク制御装置、12:磁気ディスク、13:回線
制御ユニット間バス、14:端末回線使用状況情報保持
部、A〜F:端末。 出願人 日本電気株式会社 代理人 弁理士 住田俊宗 < ffi (J OLLIL
FIG. 1 is a block diagram showing an example of a relay communication system in a conventional storage and switching device, and FIG. 2 is a block diagram showing an embodiment of the present invention. In the figure, 2: modem, 3: line adapter, 4:
Line control unit, 5: LCB bus, 6: Channel interface unit, 7: Integrated bus, 8: Central control unit, 9: Main storage unit, IO: Data channel, 11: Magnetic disk control device, 12: Magnetic disk, 13 : Line control unit bus, 14: Terminal line usage information holding unit, A to F: Terminal. Applicant NEC Co., Ltd. Agent Patent Attorney Toshimune Sumita < ffi (J OLLIL

Claims (1)

【特許請求の範囲】[Claims] それぞれ回線アダプタおよび変復調装置を介して送受信
端末を接続した回線制御ユニットと、前記回線制御ユニ
ットを複数個接続し各回線制御ユニットと蓄積交換機と
のインタフェースをとるチャネルインタフェースユニッ
トとを備えて、各送受信端末間の回報通信は、前記蓄積
交換機に一旦蓄積した後に宛先受信端末に伝送するよう
にした蓄積交換機において、前記回線制御ユニットはそ
れぞれ各端末回線の使用状態を保持する端末回線使用状
況情報保持部を備え、前記複数の回線制御ユニットを相
互接続する回線制御ユニット間バスを設けて、任意の送
信端末から回報通信が発せられたときは、当該端末を接
続した前記回線制御ユニットは、アイドル中の宛先端末
に対しては前記回線制御ユニット間バスを介して前記回
報通信を伝送し、話中回線がある場合は当該話中回線番
号を付加して前記送信端末からの情報を前記チャネルイ
ンタフェースユニットを介して前記蓄積交換機に蓄積さ
せ、前記蓄積交換機は前記話中回線がアイドル状態にな
った後に上記蓄積した情報を前記話中であった端末に送
出することを特徴とする蓄積交換機における回報通信方
式。
Each transmitter/receiver is equipped with a line control unit to which transmitting/receiving terminals are connected via a line adapter and a modem, and a channel interface unit to which a plurality of the line control units are connected and which interfaces each line control unit with a storage/switching device. In the storage/switching device, the relay communication between terminals is stored once in the storage/switching device and then transmitted to the destination receiving terminal, and each of the line control units includes a terminal line usage status information holding unit that holds the usage status of each terminal line. and an inter-line control unit bus that interconnects the plurality of line control units, and when a relay communication is issued from any transmitting terminal, the line control unit connected to the terminal is idle. The broadcast communication is transmitted to the destination terminal via the line control unit bus, and if there is a busy line, the busy line number is added and the information from the sending terminal is sent to the channel interface unit. a relay communication system in a storage/switching device, wherein the storage/switching device transmits the accumulated information to the terminal that was busy after the busy line becomes idle; .
JP16652283A 1983-09-12 1983-09-12 Multiple address communication system in store and forward exchange Pending JPS6058747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16652283A JPS6058747A (en) 1983-09-12 1983-09-12 Multiple address communication system in store and forward exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16652283A JPS6058747A (en) 1983-09-12 1983-09-12 Multiple address communication system in store and forward exchange

Publications (1)

Publication Number Publication Date
JPS6058747A true JPS6058747A (en) 1985-04-04

Family

ID=15832872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16652283A Pending JPS6058747A (en) 1983-09-12 1983-09-12 Multiple address communication system in store and forward exchange

Country Status (1)

Country Link
JP (1) JPS6058747A (en)

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