JPS59167157A - Time division exchange - Google Patents

Time division exchange

Info

Publication number
JPS59167157A
JPS59167157A JP58041252A JP4125283A JPS59167157A JP S59167157 A JPS59167157 A JP S59167157A JP 58041252 A JP58041252 A JP 58041252A JP 4125283 A JP4125283 A JP 4125283A JP S59167157 A JPS59167157 A JP S59167157A
Authority
JP
Japan
Prior art keywords
host computer
data terminals
terminal
time division
data
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
JP58041252A
Other languages
Japanese (ja)
Inventor
Shigeru Aoyama
滋 青山
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP58041252A priority Critical patent/JPS59167157A/en
Publication of JPS59167157A publication Critical patent/JPS59167157A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/50Circuit 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To reduce the number of channel busses required for connection between a host computer and data terminals by adding a folding relaying means to a terminal-side subscriber's circuit to constitute one loop line passing the host computer and plural data terminals. CONSTITUTION:In case of the connection between a host computer 4 and data terminals 5a and 5b, a time division exchange 1' turns on folding relaying switches 7 of terminal-side subscriber's circuits 3a' and 3b' (folding relaying side) in accordance with a command from the host computer 4 and turns off a folding relaying switch of a host computer-side subscriber's circuit 3c' and sets a channel bus 6 of a time division switch 2 thereafter. By this operation, one loop line which originates from the host computer 4 and passes data terminals 5a and 5b and is returned to the host computer 4 is constituted. Consequently, the data communication between the host computer 4 and data terminals 5a and 5b is possible with proper transmission control procedures by this common loop line, and the number of required channel busses is (the number of data terminals)+1.

Description

【発明の詳細な説明】 この発明は、データ端末を収容する時分割交換機に関し
、特にその端末収容方式の改善に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a time division exchange that accommodates data terminals, and particularly to an improvement in its terminal accommodation system.

従来、時分割交換機へのデータ端末の収容は第1図の様
に行なわれていた。図において、(1)は時分割交換機
、(2)は任意の通話路パスの設定を行うことのできる
時分割スイッチ、(3)は加入者回路、14)はポスト
コンピュータ、(5)はホストコンピュータ14)とデ
ータ通信を行うデータ端末、(6)は時分割スイッチ(
2)中に形成された通話路パスである。
Conventionally, data terminals were accommodated in a time division switch as shown in FIG. In the figure, (1) is a time division switch, (2) is a time division switch that can set arbitrary communication paths, (3) is a subscriber circuit, 14) is a post computer, and (5) is a host. A data terminal (6) performs data communication with a computer (14), and a time division switch (
2) A communication channel path formed within.

次に動作について説明する。ホストコンピュータ14)
と各データ端末(5a)、 (5b)とのデータ通信を
行うため、ホストコンピュータ(4)からの指令に従っ
て交換機(1)は加入者回路(3a)−(3C)間怠よ
び(3b) −(3d)間に通話路パス(6)を設定す
る。すなわち。
Next, the operation will be explained. host computer 14)
In order to perform data communication with each data terminal (5a), (5b), the exchange (1) follows instructions from the host computer (4) to connect subscriber circuits (3a)-(3C) and (3b)- A communication path (6) is set between (3d). Namely.

ホストコンピュータ(4)と個々の端末(5a)、 (
5b)間に個別に対向回線を設定する。ホストコンピユ
ー゛り(4)と端末(5a)、 (5b)間の通信はこ
の対向回線によって行うことになる。
A host computer (4) and individual terminals (5a), (
5b) Set opposite lines individually between the two. Communication between the host computer (4) and the terminals (5a) and (5b) will be performed through this opposing line.

従来の、時分割交換機(1)を介してのホストコンピュ
ータ(4)とデータ端末(5a)、 (5b)との接続
は以上のように行なわれるので、ホストコンピュータと
多数のデータ端末とを同時に接続する場合、−端末あた
りに必要とされる伝送容置が少なくてよい場合にも、時
分割スイッチ内の多数の通話路バスか占有されるという
欠点があった。すなわち、必要な通話路パスの数は(デ
ータ端末数)×2であった。また、ホストコンピュータ
側に収容データ端末数と同数の加入者回路を必要とした
The conventional connection between the host computer (4) and data terminals (5a) and (5b) via the time division switch (1) is performed as described above, so that the host computer and many data terminals can be connected simultaneously. When connecting, even if less transmission space is required per terminal, there is a disadvantage that a large number of communication buses within the time division switch are occupied. That is, the number of required communication paths was (number of data terminals)×2. In addition, the host computer required the same number of subscriber circuits as the number of data terminals accommodated.

この発明は上記のような従来のものの欠点を除去するた
めになされたもので、端末側の加入者回路のそれぞれに
折返中継手段を付加し、これによりホストコンピュータ
と複数のデータ端末とを経由する1つのループ回線が構
成されるようにすることにより、ホストコンピュータと
データ端末間の接続に必要な通話路パスの数を節減する
ことができる時分割交換機を提供することを目的として
いる。
This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and it adds loopback means to each of the subscriber circuits on the terminal side, thereby connecting the host computer and a plurality of data terminals. It is an object of the present invention to provide a time-division switching system that can reduce the number of communication paths required for connection between a host computer and a data terminal by configuring one loop line.

以下この発明の一実施例を図について説明する。An embodiment of the present invention will be described below with reference to the drawings.

第2図は本発明の一実施例による時分割交換機を使用し
、ホストコンピュータとデータ端末とを接続した場合の
構成図を示している。図において、第1図と同一符号は
同一、又は相補部分を示し。
FIG. 2 shows a configuration diagram when a time division switch according to an embodiment of the present invention is used to connect a host computer and a data terminal. In the figure, the same reference numerals as in FIG. 1 indicate the same or complementary parts.

(3C)’はホストコンピュータ側加入者回路、(3a
)’。
(3C)' is the subscriber circuit on the host computer side, (3a
)'.

(3b)’はそれぞれデータ端末(5a)、 (5b)
に対して設けられた端末側加入者回路である。
(3b)' are data terminals (5a) and (5b) respectively.
This is a terminal-side subscriber circuit provided for the terminal.

第3図は本実施例における加入者回路(3)1の一構成
例を示しており1図において、(7)は受信データを送
信側に折返すための折返中継スイッチ、(8)はOR回
路、(9)は受信データを送信タイミングに乗せ替える
ためのタイミング整合バッファである。
FIG. 3 shows an example of the configuration of the subscriber circuit (3) 1 in this embodiment. In FIG. 1, (7) is a return relay switch for returning received data to the transmitting side, and (8) is an OR The circuit (9) is a timing matching buffer for changing the received data to the transmission timing.

なあ、本実施例においては、ホストロンピユータ側の加
入者回路(3C)’には、端末側の加入者回路(3a)
 ’ # (3b)’ と同様のものをそのスイッチ(
7)をオフとして使用している。
In this embodiment, the subscriber circuit (3C)' on the host computer side includes the subscriber circuit (3a) on the terminal side.
'# (3b)' and similar to its switch (
7) is used as off.

次に動作について説明する。Next, the operation will be explained.

ホストコンピュータ(4)にデータ端末(5a)、 (
5b)を接続する場合1時分割交換機は)1は、ホスト
コンピュータ(4)からの指令に従って端末側加入者回
路C3h)’ e (3b)’の折返中継スイッチ(7
)をオン(折返中継側)とし、ホストコンピュータ側加
入者回路(3C)′の折返中継スイッチをオフとし、し
かる後、第2図に示す様に時分割スイッチ(2)の通話
路パス(6)を設定する。以上の動作により、ホストコ
ンピュータ(4)からデータ端末(5m)、 (5b)
を経由して再びホストコンピュータ(4)に戻る1つの
ループ回線が構成される。従って、ホストコンピュータ
14)トデータ端末(5a)、 (5b)間では、この
共通のループ回線により、適当な伝送制御手順を使用し
てデータ通信を行うことができる。
A data terminal (5a) is connected to the host computer (4), (
5b), the time division switch) 1 connects the return relay switch (7) of the terminal-side subscriber circuit C3h)'e (3b)' according to instructions from the host computer (4)
) is turned on (return relay side), the return relay switch of the subscriber circuit (3C)' on the host computer side is turned off, and then, as shown in FIG. ). Through the above operations, the data terminal (5m) and (5b) are transferred from the host computer (4) to the
One loop line is constructed which returns to the host computer (4) via the . Therefore, data communication can be performed between the host computer 14) and the data terminals (5a) and (5b) through this common loop line using an appropriate transmission control procedure.

このような本実施例によれば、必要な通話路パスの数は
、(データ端末数)+1となり、従来装置に比較し大巾
に節減できる。またホストコンピュータ(4)側の加入
者回路も1つですむ。
According to this embodiment, the number of required communication paths is (number of data terminals) +1, which can be greatly reduced compared to the conventional device. Also, only one subscriber circuit on the host computer (4) side is required.

なお、上記実施例では、加入者回路にタイミング整合バ
ッファ(9)を設けたものを示したが、時分割スイッチ
′(2)の構成によりタイミング整合が不要であればこ
れを省いてもよい。
In the above embodiment, the subscriber circuit is provided with a timing matching buffer (9), but this may be omitted if timing matching is not required due to the configuration of the time division switch' (2).

以上のように2この発明によれば、加入者回路に折返中
継手段を付加し、ホストコンピュータと複数のデータ端
末間に1つのループ回線を構成する様にしたので、デー
タ端末あたりの通話路パスの数を1つ番こすることがで
き、ホストコンピュータと複数のデータ端末とを同時に
接続する場合、占有する通話路バス数が少な(て済むと
いう効果がある。
As described above, according to the present invention, a return relay means is added to the subscriber circuit, and one loop line is configured between the host computer and a plurality of data terminals, so that the communication path per data terminal is When a host computer and a plurality of data terminals are connected at the same time, the number of communication busses occupied can be reduced by one.

また、必要となる加入者回路の数がホストコンピュータ
および各データ端末に各1個で済むという効果がある。
Another advantage is that only one subscriber circuit is required for the host computer and one for each data terminal.

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

第1図は従来のホストコンピュータと端末間の接続構成
図、第2図は本発明の一実施例によるホストコンピュー
タと端末間の接続構成図、第3図は本発明の一実施例に
よる時分割交換機の加入者回路の一構成例を示す図であ
る。 (1)1・・・時分割交換機、(2)・・・時分割スイ
ッチ、(3a)’ 、 (3b)’・・・端末側加入者
回路、(3C)’・・・ホストコンピュータ側加入者回
路、(4)・・・ホストコンピュータ、(5)・・・デ
ータ端末、(6)・・・通話路パ、ス、(7)・・・折
返中継スイッチ(折返中継手段)。 なお図中同一符号は同一、又は相轟部分を示す。 代理人   葛  野  信  − 第1図 ノー 第2図 第3図 1、事件の表示   特願昭58−41252  号2
、発明の名称 時分割交換機 3、補正をする者 5、補正の対象 明細書の発明の詳細な説明の欄 6、補正の内容 Tl)  明細書第2頁第10行及び第4頁第16行の
「(4)からの指令」を臼4)からの要求」に訂正する
。 以   上
FIG. 1 is a diagram of a conventional connection between a host computer and a terminal, FIG. 2 is a diagram of a connection between a host computer and a terminal according to an embodiment of the present invention, and FIG. 3 is a time sharing diagram according to an embodiment of the present invention. FIG. 2 is a diagram showing an example of a configuration of a subscriber circuit of an exchange. (1) 1...Time division exchange, (2)...Time division switch, (3a)', (3b)'...Terminal side subscriber circuit, (3C)'...Host computer side connection (4) Host computer, (5) Data terminal, (6) Communication path path, (7) Return relay switch (return relay means). Note that the same reference numerals in the drawings indicate the same or similar parts. Agent Shin Kuzuno - Figure 1 No Figure 2 Figure 3 Figure 1, Indication of the case Patent Application No. 1988-41252 No. 2
, Name of the invention Time division switch 3, Person making the amendment 5, Detailed description of the invention column 6 of the specification to be amended, Contents of the amendment Tl) Page 2, line 10 and page 4, line 16 of the specification Correct "command from (4)" to "request from mortar 4)". that's all

Claims (1)

【特許請求の範囲】[Claims] (1)  ホストコンピュータと複数のデータ端末との
間のデータ通信を時分割で行なうための時分割交換機に
おいて、任意の通話iパスの設定を行なうことのできる
時分割スイッチと、該時分割スイッチと上記複数のデー
タ端末のそれぞれとの間に設けられ上記時分割スイッチ
からの受信データを送信データとして折返し出力する折
返中継手段を有する端末側加入者回路とを備え、上記時
分割スイッチの通話路パスと上記端末側加入者回路の折
返中継手段とにより上記ホストコンピュータ及び複数の
データ端末を経由する1つのループ回線が構成されてい
ることを特徴とする時分割交換機1゜
(1) In a time-division exchange for time-division data communication between a host computer and multiple data terminals, a time-division switch that can set any call i-path, and the time-division switch a terminal-side subscriber circuit provided between each of the plurality of data terminals and having return relay means for returning and outputting the received data from the time-division switch as transmission data, the communication path of the time-division switch; and a return relay means of the terminal-side subscriber circuit constitute one loop line passing through the host computer and a plurality of data terminals.
JP58041252A 1983-03-11 1983-03-11 Time division exchange Pending JPS59167157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58041252A JPS59167157A (en) 1983-03-11 1983-03-11 Time division exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58041252A JPS59167157A (en) 1983-03-11 1983-03-11 Time division exchange

Publications (1)

Publication Number Publication Date
JPS59167157A true JPS59167157A (en) 1984-09-20

Family

ID=12603244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58041252A Pending JPS59167157A (en) 1983-03-11 1983-03-11 Time division exchange

Country Status (1)

Country Link
JP (1) JPS59167157A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6146303A (en) * 1984-08-08 1986-03-06 Kobe Steel Ltd Rolling sheet made of aluminium or aluminium alloy
JPS6146304A (en) * 1984-08-08 1986-03-06 Kobe Steel Ltd Aluminium and aluminium alloy for press-forming work

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6146303A (en) * 1984-08-08 1986-03-06 Kobe Steel Ltd Rolling sheet made of aluminium or aluminium alloy
JPS6146304A (en) * 1984-08-08 1986-03-06 Kobe Steel Ltd Aluminium and aluminium alloy for press-forming work

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