JPS60196037A - Multiplexing system of transmission line - Google Patents

Multiplexing system of transmission line

Info

Publication number
JPS60196037A
JPS60196037A JP59053265A JP5326584A JPS60196037A JP S60196037 A JPS60196037 A JP S60196037A JP 59053265 A JP59053265 A JP 59053265A JP 5326584 A JP5326584 A JP 5326584A JP S60196037 A JPS60196037 A JP S60196037A
Authority
JP
Japan
Prior art keywords
transmission line
transmission
bus
data
terminal
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
JP59053265A
Other languages
Japanese (ja)
Other versions
JPH0681152B2 (en
Inventor
Kuniyoshi Konishi
古西 邦芳
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
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 filed Critical Toshiba Corp
Priority to JP59053265A priority Critical patent/JPH0681152B2/en
Publication of JPS60196037A publication Critical patent/JPS60196037A/en
Publication of JPH0681152B2 publication Critical patent/JPH0681152B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/50Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
    • H04L12/52Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques
    • H04L12/525Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques involving a stored program control

Landscapes

  • Small-Scale Networks (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE:To attain the multiplex transmission of data between a computer and a terminal with satisfactory cost performance, by transmitting data to the terminal after transmitting them once through a divided and multiplexed bus in a system where the data of a computer are transmitted to the terminal through plural transmission lines. CONSTITUTION:For a transmission line multiplexing device 24, computer interfaces 242-244 and transmitter interfaces 245-247 are connected to a bus 100. The bus 100 is time-divided and multiplexed by the channel numbers produced from a control part 241. A transmission line multiplexing device 34 has the same constitution as the device 24. The data of computers 21-23 are delivered to transmission lines 28-30 via the bus 100 within the device 24. At the same time, the reception data are delivered to terminal devices 35-37 via a bus 200 within the device 34. Thus if a transmission line has a fault, the generation of a time- division channel is stopped within the bus 100 corresponding to the faulty transmission line. Then the data are transmitted by other channels. Thus it is not needed to prepare a spare transmission line for each transmission line.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、計算機とその端末とを接続する伝送路の多重
化方式に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a multiplexing system for transmission paths connecting computers and their terminals.

〔発明の技術的背景〕[Technical background of the invention]

従来、計算機とその端末との接続は第1図に示す如く1
対1の伝送路にてモデム等を使用して行なわれ【いた。
Conventionally, the connection between a computer and its terminal was 1 as shown in Figure 1.
This was done using a modem etc. on a one-to-one transmission line.

即ち、計算機室1に設置されている計算機2.3はモデ
ム4、伝送路5、モデム4を介して、端末室(営業窓口
その他)6に設置されている各端末7乃至12に接続さ
れている。
That is, the computers 2.3 installed in the computer room 1 are connected via the modem 4, the transmission line 5, and the modem 4 to the terminals 7 to 12 installed in the terminal room (sales counter and others) 6. There is.

〔背景技術の問題点〕[Problems with background technology]

上記のような従来の計算機と端末間の伝送路では、前も
って2重化を施こしていない回線では、その伝送路に障
害が発生した場合、人間による復田作業が終了するまで
回線が使用できないという欠点があった。また、伝送路
の2重化を施こしている回線では、障害が発生した場合
には予備の伝送路を用いて計算機と端末間の通信を確保
でき、非常に有効であるが、予備の伝送路が常時使用さ
れないため、コストパフォーマンスが悪化するという欠
点があった。
In the conventional transmission line between a computer and a terminal as described above, if a failure occurs in the line that has not been redundant in advance, the line cannot be used until the restoration work is completed by humans. There were drawbacks. In addition, in a line with duplex transmission paths, if a failure occurs, a backup transmission path can be used to ensure communication between the computer and the terminal, which is very effective. The disadvantage was that the cost performance deteriorated because the road was not used all the time.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、上記の欠点に鑑み、計算機と端末間を
良好なコストパフォーマンスを保持しつ、つ多重化し得
る伝送路多重化方式を提供することにある。
SUMMARY OF THE INVENTION In view of the above drawbacks, an object of the present invention is to provide a transmission line multiplexing method that can perform multiplexing between a computer and a terminal while maintaining good cost performance.

〔発明の概要〕[Summary of the invention]

本発明は、計算機のデータを複数の伝送路を用いて端末
に伝送するシステムにおいて、制御部によって時分割多
重化されたバスとこのバスに接続された複数の入出力イ
ンタフェースとを有する伝送路多重化装置を、計算機と
伝送路間及び伝送路と端末の間に接続すると共に、前記
バスの時分割チャネルに前記伝送路の各々を割当て、計
算機又は端末からのデータを前記時分割されたバスの空
きチャネルを介して伝送路へ送出するようにし、伝送路
に異當が発生した場合は、この伝送路に対応する時分割
チャネルの前記バスへの発生を中上する方式を採用する
ことにより、上記目的を達成するものである。
The present invention relates to a system that transmits computer data to a terminal using a plurality of transmission paths, and a transmission path multiplexing system that has a bus that is time-division multiplexed by a control unit and a plurality of input/output interfaces connected to this bus. A converting device is connected between the computer and the transmission line and between the transmission line and the terminal, and each of the transmission lines is assigned to a time-division channel of the bus, and data from the computer or terminal is transferred to the time-division channel of the bus. By adopting a method in which the signal is sent to the transmission line via an empty channel, and when an error occurs on the transmission line, the generation of the time-division channel corresponding to this transmission line is transferred to the bus. This aims to achieve the above objectives.

〔発明の実施例〕 以下本発明の一実施例を図面を参照しつつ説明する。第
2図は本発明の伝送路多重化方式を適用したデータ伝送
システムの一実施例を示す構成図である。複数の計算機
21〜23が伝送路多重化装置24、伝送装置(モデム
等)25〜27、伝送路28.29.30、伝送装置(
モデム等)31〜33及び伝送路多重化装置34を介し
て端末35〜37に接続されている。伝送路多重化装置
24は、制御部241につながるバス100に、計算機
用インタフェース242〜244及び伝送装置用インタ
フェース245〜247が接続されたものから構成され
ている。計算機用インタフェース242〜244は計算
機21〜23に接続され、伝送装置用インタフェース2
45〜247は、伝送装置25.26.27に接続され
ている。伝送路多重化装置34は制御部341につなが
るバス200に、端末用インタフェース342〜344
及び伝送装置用インタフェース345〜347が接続さ
れたものから構成される。端末用インタフェース342
〜344は端末35〜37に接続され、伝送装置用イン
タフェース345〜347は伝送装置31〜33に接続
されている。
[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a configuration diagram showing an embodiment of a data transmission system to which the transmission path multiplexing method of the present invention is applied. A plurality of computers 21 to 23 are connected to a transmission line multiplexing device 24, transmission devices (modems, etc.) 25 to 27, transmission lines 28, 29, 30, and transmission devices (
It is connected to terminals 35 to 37 via modems, etc.) 31 to 33 and a transmission line multiplexing device . The transmission line multiplexing device 24 includes a bus 100 connected to a control unit 241, and computer interfaces 242 to 244 and transmission device interfaces 245 to 247 connected thereto. Computer interfaces 242 to 244 are connected to computers 21 to 23, and transmission device interface 2
45-247 are connected to transmission devices 25, 26, and 27. The transmission line multiplexing device 34 connects terminal interfaces 342 to 344 to the bus 200 connected to the control unit 341.
and transmission device interfaces 345 to 347 are connected. Terminal interface 342
-344 are connected to terminals 35-37, and transmission device interfaces 345-347 are connected to transmission devices 31-33.

伝送装置25乃至33はモデム等の送信回路、受信回路
を有して(・る。制御部241.341は多重化のため
のタイミングの発生、各伝送装置の監視等を行なう。計
n機用、端末用インタフェース242〜244.342
〜344は送信用と受信用のバッファを有している。伝
送装置用インタフェース245〜247.345〜34
7はデータのシリアル/パラレル変換、誤り検出及び制
御部241.341が発生するタイミングと伝送装置2
5〜27.31〜33のタイミングとの位相補正を行な
う。内部バス100.200は時分割多重使用されてい
る。
The transmission devices 25 to 33 have a transmitting circuit and a receiving circuit such as a modem.The control units 241 and 341 generate timing for multiplexing, monitor each transmission device, etc. , terminal interface 242-244.342
-344 have buffers for transmission and reception. Transmission device interface 245-247.345-34
7 indicates the timing at which the data serial/parallel conversion, error detection and control unit 241 and 341 occur, and the transmission device 2
5-27. Phase correction with the timing of 31-33 is performed. Internal buses 100 and 200 are time-division multiplexed.

次に本実施例の動作について説明する。伝送路多重化装
置24の内部バス100は制御部241が発生ずるチャ
ネル番号によって第3図の300で示す如(時分割多重
化されている。例えば、計算機21かも端末37ヘデー
タを送信する場合、計算機21からの送信データは計算
機用インタフェース242の送信用バッファ(図示せず
)に入力される。計算機用インタフェース242は内部
バス100の空チャネル零を取得し、第3図の301で
示すタイミングにてデータの出力を開始する。チャネル
零に対応する伝送装置用インタフェースが245だとす
ると、伝送装置用インタフェース245は制御部241
が発生する送信タイミングでチャネル零の内容を伝送装
置25側へパラレル/シリアル変換して出カスる。この
際、内部バスloo上の1タイムスロツトに入る転送語
数に比べ送信語数が多い場合は、計算機用インタフェー
ス242は次のチャネル零がきた時に残りのデータを出
力し、全てのデータを出力し終ったらチャネル零をU)
1放する。伝送装置用インタフェース245が出方する
データは伝送装置25、伝送路28、伝送装置31、伝
送装置用インタフェース345へと送られる。伝送装置
用インタフェース345は、伝送路多重化装置34の内
部バス200上に端末37宛の宛先が付加(計算機21
で付加されるうされたデータをシリアル/パラレル変換
して出力する。すると、このデータの宛先を見て、端末
用インタフェース344が伝送装置用インタフェース3
45から出力されたデータを取込み始め、データカー残
っている場合は次のチャネルのタイミングで残りを取込
む。なお、内部バス200も制御部341により時分割
多重化されている。端末用インタフェース344はその
受信バッファ(図示せずンにデータが入り始めると−こ
れを端末機37に出力する。なお、端末機35.36.
37側が計算機21.22.23fi11へのデータ伝
送動作も上記動作と同じで、端末と計算機が入れ替るだ
けである。
Next, the operation of this embodiment will be explained. The internal bus 100 of the transmission line multiplexing device 24 is time-division multiplexed as shown by 300 in FIG. Transmission data from the computer 21 is input to a transmission buffer (not shown) of the computer interface 242.The computer interface 242 acquires the empty channel zero of the internal bus 100, and at the timing shown at 301 in FIG. If the transmission device interface corresponding to channel zero is 245, the transmission device interface 245 is connected to the control unit 241.
The contents of channel zero are parallel/serial converted and output to the transmission device 25 side at the transmission timing when this occurs. At this time, if the number of transmitted words is greater than the number of transferred words that enter one time slot on the internal bus loo, the computer interface 242 outputs the remaining data when the next channel zero arrives, and then outputs all the data. Tara channel zero U)
Release 1. Data output from the transmission device interface 245 is sent to the transmission device 25, the transmission path 28, the transmission device 31, and the transmission device interface 345. The transmission device interface 345 adds a destination for the terminal 37 on the internal bus 200 of the transmission line multiplexing device 34 (computer 21
The added data is serial/parallel converted and output. Then, looking at the destination of this data, the terminal interface 344 transfers it to the transmission device interface 3.
45, and if there are any remaining data cars, the rest will be taken in at the timing of the next channel. Note that the internal bus 200 is also time-division multiplexed by the control unit 341. When the terminal interface 344 starts receiving data into its reception buffer (not shown), it outputs this to the terminal 37.
The data transmission operation from the 37 side to the computers 21, 22, and 23fi11 is the same as the above operation, only that the terminal and computer are exchanged.

次に伝送路28や伝送−装置25.31に異常が発生し
たとする。すると制御部241はこれに対応する零チャ
ネルのチャネル番号の発生を中止する。
Next, assume that an abnormality occurs in the transmission path 28 or the transmission devices 25 and 31. Then, the control unit 241 stops generating the channel number of the corresponding zero channel.

この場合、計算機200の出力を受信した計算機用イン
タフェース242は内部バス100上の零チャネルを除
いた他のチャネルで空チャネルがあった場合、この空チ
ャネルを使用してデータの伝送を行なう。従って、伝送
路28を使用することな(他の伝送路を使用して上記と
同様に端末37に計算機21かものデータを送ることが
できる。即ち、本実施例では伝送路等に異常があると縮
退運転を行ない、異常部分の復旧を待つことができる。
In this case, if there is an empty channel on the internal bus 100 other than the zero channel, the computer interface 242 that has received the output of the computer 200 uses this empty channel to transmit data. Therefore, data for the computer 21 can be sent to the terminal 37 in the same way as described above without using the transmission path 28 (using another transmission path. In other words, in this embodiment, there is an abnormality in the transmission path etc. It is possible to perform degenerate operation and wait for the abnormal part to recover.

本実施例によれば、計算機21〜23のデータを伝送路
多重化装置24内の時分割多重化されたバス100を介
して伝送路28〜30に出力し、且つ、受信データを伝
送路多重化装置34内の時分割多重化されたバス200
を介して端末機35〜37に出力することにより、伝送
路に異常が発生した場合はその伝送路に対応するバスZ
oo内の時分割チャネルの発生を停止して、他のチャネ
ルを用いて上記データを伝送する構成とすることにより
、予備伝送路を伝送路1本につき1本設置する必要がな
く、複数本の伝送路に対して1本設置すれば良(、伝送
路の多重化を良好なコストパフォーマンスにて行なうこ
とができる。また、計算機用インタフェース242〜2
44及び端末用インタフェース342〜344に送信、
受信用のバッファを持たせているため、伝送装置25〜
27.31〜33の伝送スピードは各々任意に設定する
ことができる。
According to this embodiment, data from the computers 21 to 23 is outputted to the transmission lines 28 to 30 via the time-division multiplexed bus 100 in the transmission line multiplexing device 24, and received data is transmitted to the transmission line multiplexed. time division multiplexed bus 200 within the
By outputting to the terminals 35 to 37 via
By stopping generation of the time division channel within oo and transmitting the above data using other channels, there is no need to install one backup transmission line for each transmission line, and multiple It is only necessary to install one per transmission line (multiplexing of transmission lines can be performed with good cost performance. Also, computer interfaces 242 to 2
44 and terminal interfaces 342 to 344,
Because it has a buffer for reception, the transmission device 25~
27. The transmission speeds of 31 to 33 can be set arbitrarily.

更に、上記の如く自動的に異常回線が使用禁止となるた
め、保守性及び管理性を向上させることができる。
Furthermore, since the abnormal line is automatically prohibited from use as described above, maintainability and manageability can be improved.

なお、本発明は伝送装置を交換すれば波長多重による光
伝送路への適用を同様に行なうことができ、同様の効果
がある。
It should be noted that the present invention can be similarly applied to an optical transmission line by wavelength multiplexing by replacing the transmission device, and the same effect can be obtained.

〔発明の効果〕〔Effect of the invention〕

以上記述した如く、本発明の伝送路多重化方式によれば
、計算機からのデータを一旦時分割多重化されたバスを
通して端末に送る構成とすることにより、計算機と端末
間を良好なコストパフォーマンスを保持しつつ多重化し
得る効果がある。
As described above, according to the transmission path multiplexing method of the present invention, by having a configuration in which data from a computer is sent to a terminal through a time-division multiplexed bus, good cost performance can be achieved between the computer and the terminal. It has the effect of being able to be multiplexed while retaining the data.

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

第1図は従来の伝送路を用いたデータ伝送システムの一
例を示した構成図、第2図は本発明の伝送路多重化方式
を適用したデータ伝送システムの一実施例を示した構成
図、第3図は第2図における伝送路多重化装置の動作タ
イミングチャート図である。 21.22.23・・・計算機 24.34・・・伝送路多重化装置 25.26.27.31.32.33・−・伝送装置2
8.29.30・・・伝送路 35.36.37・・・端末 200.300・・・バ
ス241.341・・・制御部 242.243.244・・・計算機用インタフェース
245.246.247.345.346.347・・
・伝送装置用インタフェース 342.343.344・・・端末用インタフェース代
理人 弁理士 本 1) 崇
FIG. 1 is a block diagram showing an example of a data transmission system using a conventional transmission line, and FIG. 2 is a block diagram showing an example of a data transmission system to which the transmission line multiplexing method of the present invention is applied. FIG. 3 is an operation timing chart of the transmission line multiplexing device in FIG. 2. 21.22.23...Computer 24.34...Transmission line multiplexing device 25.26.27.31.32.33...Transmission device 2
8.29.30...Transmission line 35.36.37...Terminal 200.300...Bus 241.341...Control unit 242.243.244...Computer interface 245.246.247 .345.346.347...
・Transmission device interface 342.343.344...Terminal interface agent Patent attorney Hon 1) Takashi

Claims (1)

【特許請求の範囲】[Claims] 計算機のデータを複数の伝送路を用いて端末に伝送する
システムにおいて、制御部によって時分割多重化された
バスと、このバスに接続された複数の入出力インタフェ
ースとを有する伝送路多重化装置を、計算機と伝送路間
及び伝送路と端末の間に接続すると共に、前記バスの時
分割チャネルに前記伝送路の各々を割当て、計算機又は
端末からのデータを前記時分割されたバスの空きチャネ
ルを介して伝送路へ送出するようにし、伝送路に異常が
発生した場合は、この伝送路に対応する時分割チャネル
の前記バスへの発生を中止することを特徴とする伝送路
多重化方式。
In a system that transmits computer data to a terminal using multiple transmission paths, a transmission path multiplexing device that has a bus that is time-division multiplexed by a control unit and multiple input/output interfaces connected to this bus is used. , connects between a computer and a transmission line and between a transmission line and a terminal, and assigns each of the transmission lines to a time-sharing channel of the bus, and transmits data from the computer or terminal to an empty channel of the time-divided bus. A transmission line multiplexing method characterized in that when an abnormality occurs in a transmission line, generation of a time division channel corresponding to this transmission line to the bus is stopped.
JP59053265A 1984-03-19 1984-03-19 Transmission line multiplexing method Expired - Lifetime JPH0681152B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59053265A JPH0681152B2 (en) 1984-03-19 1984-03-19 Transmission line multiplexing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59053265A JPH0681152B2 (en) 1984-03-19 1984-03-19 Transmission line multiplexing method

Publications (2)

Publication Number Publication Date
JPS60196037A true JPS60196037A (en) 1985-10-04
JPH0681152B2 JPH0681152B2 (en) 1994-10-12

Family

ID=12937931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59053265A Expired - Lifetime JPH0681152B2 (en) 1984-03-19 1984-03-19 Transmission line multiplexing method

Country Status (1)

Country Link
JP (1) JPH0681152B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63106059A (en) * 1986-08-01 1988-05-11 ジェネラル デイタコム インコーポレーテッド Fast bit interleaved time-sharing multiplexer for multinode communication system
US8804706B2 (en) 2011-02-16 2014-08-12 Fujitsu Limited Information processing system, relay device, and communication control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539485A (en) * 1976-07-15 1978-01-27 Toshiba Corp Mesa type semiconductor device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539485A (en) * 1976-07-15 1978-01-27 Toshiba Corp Mesa type semiconductor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63106059A (en) * 1986-08-01 1988-05-11 ジェネラル デイタコム インコーポレーテッド Fast bit interleaved time-sharing multiplexer for multinode communication system
US8804706B2 (en) 2011-02-16 2014-08-12 Fujitsu Limited Information processing system, relay device, and communication control method

Also Published As

Publication number Publication date
JPH0681152B2 (en) 1994-10-12

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