JPH0364138A - Data transmission system for 2nd channel - Google Patents
Data transmission system for 2nd channelInfo
- Publication number
- JPH0364138A JPH0364138A JP19804789A JP19804789A JPH0364138A JP H0364138 A JPH0364138 A JP H0364138A JP 19804789 A JP19804789 A JP 19804789A JP 19804789 A JP19804789 A JP 19804789A JP H0364138 A JPH0364138 A JP H0364138A
- Authority
- JP
- Japan
- Prior art keywords
- data
- transmission
- channel
- data transmission
- transformer
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 79
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はディジタルデータ伝送方式に係ｂ１特にバイポ
ーラ信号によるデータ伝送と同時に第２チャネルのデー
タ伝送をもできる第２チャネルのデータ伝送方式に関す
るものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a digital data transmission system, and particularly to a second channel data transmission system that can simultaneously transmit data using bipolar signals and simultaneously transmit data on a second channel. It is.
従来のバイポーラ信号によるデータ伝送方式は、送信側
装置のデータ送信回路と受信側装置のデータ受信回路と
の間でのデータ伝送となっていた。In the conventional data transmission system using bipolar signals, data is transmitted between a data transmitting circuit of a transmitting device and a data receiving circuit of a receiving device.
上述した従来のデータ伝送方式では、送信側装置のデー
タ送信回路と受信側装置のデータ受信回路との間でのデ
ータ伝送と欧っているので、データを１チャネルしか伝
送できないという課題があった。In the conventional data transmission method described above, data is transmitted between the data transmission circuit of the sending device and the data receiving circuit of the receiving device, so there is a problem that data can only be transmitted through one channel. .
本発明の第２チャネルのデータ伝送方式は、バイポーラ
信号によるデータ伝送方式において、送信側装置で伝送
路へ直流を重畳する定電流源と、第２チャネルデータの
送信を制御する制御回路と、この制御回路によう伝送路
への直流重畳を制御するスイッチと、このスイッチを介
した上記定電流源からの直流を伝送路へ重畳するための
送信トランスと、この送信トランスに接続されてデータ
信号を送出するデータ送信回路を有し、受信側装置で伝
送路に重畳された直流を取り出すための受信夕償号を受
信するデータ受信回路と、上記受信トランスと接続され
て伝送路に重畳された直流を検出する電流検出回路と、
この電流検出回路によう制御される第２チャネルデータ
検出回路を有し、上記データ送信回路と上記データ受信
回路との間におけるデータ伝送と同時に伝送路への直流
重畳の有無による第２チャネルのデータ伝送を行うよう
にしたものである。The second channel data transmission method of the present invention is a data transmission method using bipolar signals, and includes a constant current source that superimposes a direct current onto the transmission path in a transmitting side device, a control circuit that controls the transmission of second channel data, and a control circuit that controls the transmission of second channel data. The control circuit includes a switch for controlling direct current superposition onto the transmission path, a transmitting transformer for superimposing the direct current from the constant current source onto the transmission path via this switch, and a transmitting transformer connected to the transmitting transformer for transmitting data signals. A data receiving circuit that has a data transmitting circuit for transmitting data, a data receiving circuit that receives a received signal for extracting the direct current superimposed on the transmission path at the receiving side device, and a data receiving circuit that is connected to the receiving transformer and superimposed on the transmission path. a current detection circuit that detects
The current detection circuit has a second channel data detection circuit controlled as follows, and at the same time data is transmitted between the data transmission circuit and the data reception circuit, the second channel data is determined by the presence or absence of direct current superimposition on the transmission path. It is designed to perform transmission.
本発明にかいては、伝送路へ直流を重畳するのを制御す
ることにより、バイポーラ信号によるデータ伝送と同時
に第２チャネルのデータ伝送を行う。According to the present invention, by controlling superimposition of direct current onto the transmission path, data transmission on the second channel is performed simultaneously with data transmission using bipolar signals.
以下、図面に基づき本発明の実施例を詳細に説明する。 Embodiments of the present invention will be described in detail below based on the drawings.
図は本発明の一実施例を示すブロック図である。The figure is a block diagram showing one embodiment of the present invention.
図にかいて、１はバイポーラ信号によるデータ伝送を行
う送信側装置を示し、２Ｖｉ受信側装置を示す。In the figure, 1 indicates a transmitting side device that transmits data using bipolar signals, and 2Vi indicates a receiving side device.
３は伝送路へ直流を重畳する定電流源、４は第２チャネ
ルデータの送信を制御する第２チャネルデータ送信制御
回路、５はこの第２チャネルデータ送信制御回路４によ
う伝送路への直流重畳を制御するスイッチ、６はこのス
イッチ５を介した定電流源３からの直流を伝送路へ重畳
するための送信トランス、７はこの送信トランス６と接
続されてデータ信号を送出するデータ送信回路で、これ
らは送信側装置１を構成している。８は伝送路である・
９は伝送路８に重畳された直流を取９出すためノ受信ト
ランス、１０はこの受信トランス９と接続されてデータ
信号を受信するデータ受信回路、１１は受信トランス９
と接続されて伝送路８に重畳された直流を検出する電流
検出回路、１２はこの電流検出回路１１により制御され
る第２チャネルデータ検出回路で、これらは受信側装置
２を構成している。3 is a constant current source that superimposes a direct current onto the transmission path, 4 is a second channel data transmission control circuit that controls the transmission of second channel data, and 5 is a direct current source that superimposes a direct current onto the transmission path. A switch for controlling superimposition, 6 a transmitting transformer for superimposing the direct current from the constant current source 3 via this switch 5 onto the transmission path, and 7 a data transmitting circuit connected to this transmitting transformer 6 to send out a data signal. These constitute the transmitting side device 1. 8 is a transmission line; 9 is a receiving transformer for extracting the direct current superimposed on the transmission line 8; 10 is a data receiving circuit connected to this receiving transformer 9 to receive data signals; 11 is a receiving transformer 9;
12 is a second channel data detection circuit controlled by the current detection circuit 11, and these constitute the receiving side device 2.
そして、データ送信回路γとデータ受信回路１０との間
におけるデータ伝送と同時に伝送路への直流重畳の有無
による第２チャネルのデータ伝送を行うように構成され
ている。The device is configured to simultaneously perform data transmission between the data transmitting circuit γ and the data receiving circuit 10 and simultaneously perform data transmission on the second channel depending on whether direct current is superimposed on the transmission path.
つぎにこの図に示す実施例の動作を説明する。Next, the operation of the embodiment shown in this figure will be explained.
１ず、データは送信側装置１から伝送路８を介して受信
側装置２へと伝送される。そして、バイポーラ信号によ
るデータ伝送は、送信側装置１のデータ送信回路７によ
り送出されたデータ信号が送信トランス６を通ｂ１伝送
路８を介して受信側装置２の受信トランス９を通り、デ
ータ受信回路１０へと伝送されることにより行われる。First, data is transmitted from the transmitting device 1 to the receiving device 2 via the transmission path 8 . In data transmission using a bipolar signal, a data signal sent by the data transmitting circuit 7 of the transmitting device 1 passes through the transmitting transformer 6, the b1 transmission path 8, the receiving transformer 9 of the receiving device 2, and receives the data. This is done by transmitting the data to the circuit 10.
つぎに、第２チャネルのデータ伝送は、このバイポーラ
信号によるデータ伝送と同時に伝送路８への直流重畳の
有無により行われる。ここで、バイポーラ信号によるデ
ータ伝送中に伝送路８へ直流をＸ畳してもその直流分は
受信トランス９によ）カットされるため、バイポーラ信
号によるデータ伝送への影響は無い。Next, data transmission on the second channel is performed depending on the presence or absence of direct current superimposition on the transmission line 8 at the same time as the data transmission using this bipolar signal. Here, even if a direct current is multiplied by X to the transmission line 8 during data transmission using the bipolar signal, the direct current component is cut by the receiving transformer 9), so there is no effect on the data transmission using the bipolar signal.
例えば、第２チャネルのデータ情報のｒＯＪを伝送路８
への直流重畳無し、「１」を直流重畳有すとして定義す
る。For example, if rOJ of the data information of the second channel is
Define "1" as having no DC superposition, and "1" as having DC superposition.
第２チャネルのデータとして「１」を伝送したい場合を
以下に説明する。A case in which it is desired to transmit "1" as data on the second channel will be described below.
送信側装置１の第２チャネルデータ送信制御回路４によ
りスインチ５が制御され、定電流源３により発生した直
流を送信トランス６へと送出するこの直流は伝送路８を
通う、受信側装置２の受信トランス９へと伝送される。The switch 5 is controlled by the second channel data transmission control circuit 4 of the transmitting device 1, and the direct current generated by the constant current source 3 is sent to the transmitting transformer 6. This direct current passes through the transmission path 8 of the receiving device 2. The signal is transmitted to the receiving transformer 9.
受信トランス９にょシこの直流は電流検出回路１１へと
伝えられ、検出されて、第２チャネルデータ検出回路１
２でデ−タ「１」として受信される。このようにして「
１」の情報は伝送される。そして、「０」の情報は、同
様に送信側装置１の第２チャネルデータ送信制御回路４
によりスインチ５が制御され、定電流源３からの直流を
送信トランス６へ送出しないようにする。このことによ
り、伝送路８への直流重畳は無く、受信側装置２の電流
検出回路１１での直流検出が無いため、第２チャネルデ
ータ検出回路１２は「０」を受信したと判断する。This direct current from the receiving transformer 9 is transmitted to the current detection circuit 11, detected, and transmitted to the second channel data detection circuit 1.
2, it is received as data "1". In this way,
1" information is transmitted. Similarly, the information of "0" is transmitted to the second channel data transmission control circuit 4 of the transmitting side device 1.
The switch 5 is controlled so that the direct current from the constant current source 3 is not sent to the transmission transformer 6. As a result, there is no direct current superimposed on the transmission line 8 and there is no direct current detection in the current detection circuit 11 of the receiving side device 2, so the second channel data detection circuit 12 determines that it has received "0".
このようにしてバイポーラ信号によるデータ伝送と同時
に第２チャネルのデータ伝送を行うことができる。In this way, data transmission on the second channel can be performed simultaneously with data transmission using bipolar signals.
以上説明したように本発明は、伝送路へ直流を重畳する
のを制御することによう、バイポーラ信号によるデータ
伝送と同時に第２チャネルのデータ伝送をもできる効果
がある。As explained above, the present invention has the advantage of controlling the superimposition of direct current onto the transmission path, and also enables data transmission of the second channel at the same time as data transmission using bipolar signals.
図は本発明の一実施例を示すブロック図である。
１・・・・送信側装置、２・・・・受信側装置、３°１
＠０定電流源、４・・・・第２チャネルデーク送信制御
回路、５・・・・スイッチ、６・・・・送信トランス、
７・・・・データ送信装置、８・・・・伝送路、９・・
・・受信トランス、１゜・・・・データ受信回路、１１
・・・・電流検出回路、１２・・・・第２チャネルデー
タ検出回路。The figure is a block diagram showing one embodiment of the present invention. 1... Sending side device, 2... Receiving side device, 3°1
@0 constant current source, 4...2nd channel data transmission control circuit, 5...switch, 6...transmission transformer,
7...Data transmission device, 8...Transmission line, 9...
...Reception transformer, 1゜...Data reception circuit, 11
...Current detection circuit, 12...Second channel data detection circuit.
Claims (1)
装置で伝送路へ直流を重畳する定電流源と、第２チャネ
ルデータの送信を制御する制御回路と、この制御回路に
より伝送路への直流重畳を制御するスイッチと、このス
イッチを介した前記定電流源からの直流を伝送路へ重畳
するための送信トランスと、この送信トランスに接続さ
れてデータ信号を送するデータ送信回路を有し、受信側
装置で伝送路に重畳された直流を取り出すための受信ト
ランスと、この受信トランスと接続されてデータ信号を
受信するデータ受信回路と、前記受信トランスと接続さ
れて伝送路に重畳された直流を検出する電流検出回路と
、この電流検出回路により制御される第２チャネルデー
タ検出回路を有し、前記データ送信回路と前記データ受
信回路との間におけるデータ伝送と同時に伝送路への直
流重畳の有無による第２チャネルのデータ伝送を行うよ
うにしたことを特徴とする第２チャネルのデータ伝送方
式。In a data transmission system using bipolar signals, the transmitting side device includes a constant current source that superimposes direct current onto the transmission path, a control circuit that controls the transmission of second channel data, and this control circuit that controls the superimposition of direct current onto the transmission path. It has a switch, a transmission transformer for superimposing the direct current from the constant current source onto the transmission path via the switch, and a data transmission circuit connected to the transmission transformer to send a data signal, and a receiving side device A receiving transformer for taking out the direct current superimposed on the transmission path, a data receiving circuit connected to the receiving transformer to receive a data signal, and a current connected to the receiving transformer to detect the direct current superimposed on the transmission path. It has a detection circuit and a second channel data detection circuit controlled by the current detection circuit, and simultaneously performs data transmission between the data transmission circuit and the data reception circuit, and at the same time determines the presence or absence of direct current superimposition on the transmission path. A data transmission method for a second channel, characterized in that data transmission is performed on a second channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19804789A JPH0364138A (en) | 1989-08-01 | 1989-08-01 | Data transmission system for 2nd channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19804789A JPH0364138A (en) | 1989-08-01 | 1989-08-01 | Data transmission system for 2nd channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0364138A true JPH0364138A (en) | 1991-03-19 |
Family
ID=16384652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19804789A Pending JPH0364138A (en) | 1989-08-01 | 1989-08-01 | Data transmission system for 2nd channel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0364138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10234720A1 (en) * | 2002-07-30 | 2004-02-12 | Infineon Technologies Ag | Interface connection method for transmitting/receiving data links to two lines in a pair of lines regarded as a single line in order to transmit data by means of differential signals |
-
1989
- 1989-08-01 JP JP19804789A patent/JPH0364138A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10234720A1 (en) * | 2002-07-30 | 2004-02-12 | Infineon Technologies Ag | Interface connection method for transmitting/receiving data links to two lines in a pair of lines regarded as a single line in order to transmit data by means of differential signals |
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