JPS63158044U - - Google Patents
Info
- Publication number
- JPS63158044U JPS63158044U JP5124087U JP5124087U JPS63158044U JP S63158044 U JPS63158044 U JP S63158044U JP 5124087 U JP5124087 U JP 5124087U JP 5124087 U JP5124087 U JP 5124087U JP S63158044 U JPS63158044 U JP S63158044U
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- terminal
- transmission line
- line
- terminal connected
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 45
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000873 masking effect Effects 0.000 claims 3
- 230000004913 activation Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Dc Digital Transmission (AREA)
- Small-Scale Networks (AREA)
Description
第１図は本考案の一実施例のデータ伝送システ
ムの要部構成ブロツク図、第２図は第１図に示す
システムの作動を説明するタイムチヤートである
。
符号の説明、１……第１伝送ライン、２……第
２伝送ライン、３……基準ライン、１０，１０′
……ＥＣＵ、１１……第１の伝送端子、１２……
第２の伝送端子、１３……基準端子、１４……平
衡伝送レシーバ、１５……平衡伝送トランスミツ
タ、１６，１７……ラインスイツチ、１８……起
動信号検出回路、２０……リモートステーシヨン
、２１……受信端子、２２……送信端子、２３…
…基準端子、２４……ラインレシーバ、２５……
ラインドライバ、２６……ラインスイツチ、２７
……起動信号検出回路、３０……マスターステー
シヨン、３１……第１の接続端子、３２……第２
の接続端子、３３……基準端子、３４……平衡伝
送トランスミツタ、３５……平衡伝送レシーバ、
３６……ラインドライバ、３７……ラインレシー
バ、４１……起動信号送出用ラインドライバ、３
８，３９，４０，４２……ラインスイツチ。
FIG. 1 is a block diagram showing the main part of a data transmission system according to an embodiment of the present invention, and FIG. 2 is a time chart illustrating the operation of the system shown in FIG. Explanation of symbols, 1...First transmission line, 2...Second transmission line, 3...Reference line, 10, 10'
...ECU, 11...First transmission terminal, 12...
Second transmission terminal, 13... Reference terminal, 14... Balanced transmission receiver, 15... Balanced transmission transmitter, 16, 17... Line switch, 18... Starting signal detection circuit, 20... Remote station, 21 ...Receiving terminal, 22... Transmitting terminal, 23...
...Reference terminal, 24...Line receiver, 25...
Line driver, 26...Line switch, 27
... Start signal detection circuit, 30 ... Master station, 31 ... First connection terminal, 32 ... Second
connection terminal, 33... reference terminal, 34... balanced transmission transmitter, 35... balanced transmission receiver,
36...Line driver, 37...Line receiver, 41...Line driver for sending start signal, 3
8, 39, 40, 42... line switch.
Claims (1)
準ラインとを有する伝送ライン、 (b) 前記第１伝送ラインに接続される第１の伝
送端子と、前記第２伝送ラインに接続される第２
の伝送端子と、前記第１及び／又は第２伝送ライ
ンに乗せられる起動信号る検出してから所定期間
は通信機能をマスクする通信マスク手段と、前記
基準ラインに接続される基準端子とを有する平衡
伝送局、 (c) 前記第１伝送ラインに接続される受信端子
と、前記第２伝送ラインに接続される送信端子と
、前記第１及び／又は第２伝送ラインに乗せられ
る起動信号を検出してから所定期間以外は通信機
能をマスクする通信マスク手段と、前記基準ライ
ンに接続される基準端子とを有する不平衡伝送リ
モート局、 および、 (d) 前記第１伝送ラインに接続される第１の接
続端子と、前記第２伝送ラインに接続される第２
の接続端子と、平衡伝送用の第１および第２の伝
送端子と、不平衡伝送用の送信端子および受信端
子と、前記第１の伝送端子または前記送信端子を
択一的に選択して前記第１の接続端子に接続する
と共に前記第２の伝送端子または前記受信端子を
択一的に選択して前記第２の接続端子に接続する
選択切換手段と、前記第１の伝送端子および前記
第２の伝送端子を選択した状態で前記第１及び／
又は第２伝送ラインに送信通知信号を送出する送
信通知信号送出手段と、前記第１及び／又は第２
伝送ラインに起動信号を送出する起動信号送出手
段と、その起動信号送出後の所定期間は前記送信
端子および前記受信端子を選択させる不平衡伝送
選択手段と、前記基準ラインに接続される基準端
子とを有する平衡／不平衡伝送マスタ局 を具備してなることを特徴とするデータ伝送シス
テム。[Claims for Utility Model Registration] (a) a transmission line having a first transmission line, a second transmission line, and a reference line; (b) a first transmission terminal connected to the first transmission line; a second transmission line connected to the second transmission line;
a transmission terminal connected to the first and/or second transmission line, communication masking means for masking the communication function for a predetermined period after detection of the activation signal carried on the first and/or second transmission line, and a reference terminal connected to the reference line. a balanced transmission station, (c) detecting a reception terminal connected to the first transmission line, a transmission terminal connected to the second transmission line, and an activation signal carried on the first and/or second transmission line; (d) an unbalanced transmission remote station having a communication mask means for masking a communication function for a period other than a predetermined period after the communication has been completed, and a reference terminal connected to the reference line; and (d) a first transmission line connected to the first transmission line. 1 connection terminal, and a second connection terminal connected to the second transmission line.
, the first and second transmission terminals for balanced transmission, the transmission terminal and reception terminal for unbalanced transmission, and the first transmission terminal or the transmission terminal. selection switching means that connects to the first connection terminal and selectively selects the second transmission terminal or the reception terminal to connect to the second connection terminal; With the second transmission terminal selected, the first and /
or transmission notification signal sending means for sending a transmission notification signal to a second transmission line, and said first and/or second transmission line.
starting signal sending means for sending a starting signal to the transmission line; unbalanced transmission selection means for selecting the transmitting terminal and the receiving terminal for a predetermined period after sending the starting signal; and a reference terminal connected to the reference line. 1. A data transmission system comprising: a balanced/unbalanced transmission master station having a balanced/unbalanced transmission master station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5124087U JPH0537562Y2 (en) | 1987-04-03 | 1987-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5124087U JPH0537562Y2 (en) | 1987-04-03 | 1987-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63158044U true JPS63158044U (en) | 1988-10-17 |
| JPH0537562Y2 JPH0537562Y2 (en) | 1993-09-22 |
Family
ID=30875316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5124087U Expired - Lifetime JPH0537562Y2 (en) | 1987-04-03 | 1987-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0537562Y2 (en) |
-
1987
- 1987-04-03 JP JP5124087U patent/JPH0537562Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0537562Y2 (en) | 1993-09-22 |
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