JPS6416751U - - Google Patents
Info
- Publication number
- JPS6416751U JPS6416751U JP11102687U JP11102687U JPS6416751U JP S6416751 U JPS6416751 U JP S6416751U JP 11102687 U JP11102687 U JP 11102687U JP 11102687 U JP11102687 U JP 11102687U JP S6416751 U JPS6416751 U JP S6416751U
- Authority
- JP
- Japan
- Prior art keywords
- line
- signal line
- data
- ground
- card
- 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 3
- 230000002457 bidirectional effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Communication Control (AREA)
- Bidirectional Digital Transmission (AREA)
- Dc Digital Transmission (AREA)
Description
第１図は、本考案の一実施例を示す構成ブロツ
ク図、第２図は、第１図システムの動作の一例を
示す波形図である。
Ｃ１，Ｃ２…カード、ＢＳ…バス、Ｌ１…電源
線、Ｌ２…信号線、Ｌ３…グラウンド線、Ｑ１，
Ｑ４…トランジスタ、ＩＣ１，ＩＣ２…レシーバ
、ＣＰ１，ＣＰ２…ホトカプラ、ＳＷ１…スイツ
チ、Ｒ１〜Ｒ４…抵抗。
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a waveform diagram showing an example of the operation of the system shown in FIG. C1, C2...Card, BS...Bus, L1...Power line, L2...Signal line, L3...Ground line, Q1,
Q4...Transistor, IC1, IC2...Receiver, CP1, CP2...Photocoupler, SW1...Switch, R1-R4...Resistor.
Claims (1)
で、電気的に絶縁してデータを双方向に伝送する
双方向バスシステムであつて、２つのカード間あ
るいは、２つのシステムの間に一端が電源Ｖｃｃ
に接続された電源線と、各ｂｉｔに対応する信号
線と、一端がグラウンドに接続されたグラウンド
線とを設け、一方のカードまたはシステムは電源
線と信号線の間に接続した抵抗と、信号線とグラ
ウンド線との間に接続され送信データが印加され
るトランジスタと、信号線に接続されたレシーバ
とを備え、他方のカードまたはシステムは電源線
に挿入接続されデータの伝送方向を決めるスイツ
チと、電源線と信号線との間に接続され伝送され
たデータを信号絶縁する第１のホトカプラと、こ
の第１のホトカプラの出力端に接続されたレシー
バと、送信データを入力するトランジスタと、こ
のトランジスタよりのデータを信号絶縁する信号
線とグラウンド線との間に接続された第２のホト
カプラとを備えることを特徴とする双方向バスシ
ステム。 A bidirectional bus system that electrically isolates and transmits data in both directions between two cards or two systems, with one end connected to the power supply Vcc between the two cards or two systems.
A power line connected to the power line, a signal line corresponding to each bit, and a ground line connected to the ground at one end are provided, and one card or system has a resistor connected between the power line and the signal line, and a signal line corresponding to each bit. The other card or system includes a transistor connected between the line and the ground line to which transmission data is applied, and a receiver connected to the signal line, and the other card or system includes a switch inserted and connected to the power line to determine the direction of data transmission. , a first photocoupler connected between the power supply line and the signal line to insulate transmitted data, a receiver connected to the output terminal of this first photocoupler, a transistor inputting transmission data, and this A bidirectional bus system comprising a second photocoupler connected between a signal line and a ground line for insulating data from a transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11102687U JPH0546362Y2 (en) | 1987-07-20 | 1987-07-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11102687U JPH0546362Y2 (en) | 1987-07-20 | 1987-07-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6416751U true JPS6416751U (en) | 1989-01-27 |
| JPH0546362Y2 JPH0546362Y2 (en) | 1993-12-03 |
Family
ID=31348719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11102687U Expired - Lifetime JPH0546362Y2 (en) | 1987-07-20 | 1987-07-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0546362Y2 (en) |
-
1987
- 1987-07-20 JP JP11102687U patent/JPH0546362Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0546362Y2 (en) | 1993-12-03 |
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