JPS6330046U - - Google Patents
Info
- Publication number
- JPS6330046U JPS6330046U JP12128586U JP12128586U JPS6330046U JP S6330046 U JPS6330046 U JP S6330046U JP 12128586 U JP12128586 U JP 12128586U JP 12128586 U JP12128586 U JP 12128586U JP S6330046 U JPS6330046 U JP S6330046U
- Authority
- JP
- Japan
- Prior art keywords
- personal computer
- light emitting
- emitting diode
- communication
- communication line
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Small-Scale Networks (AREA)
Description
第１図は、本考案によるデータ収集システムの
ＲＳ―２３２Ｃ通信ポート間の回路図である。
（主な参照番号）１……ホスト用パーソナルコ
ンピユータ、２……端末用パーソナルコンピユー
タ、３〜６……ホトカプラ、７……限流用抵抗、
８……直流電源、９……通信線。
FIG. 1 is a circuit diagram between RS-232C communication ports of a data acquisition system according to the present invention. (Main reference numbers) 1... Personal computer for host, 2... Personal computer for terminal, 3-6... Photocoupler, 7... Current limiting resistor,
8...DC power supply, 9...Communication line.
Claims (1)
て複数の端末用パーソナルコンピユータをおのお
の通信ポートと通信線を介して接続し、上記端末
用パーソナルコンピユータからのデータを上記ホ
スト用パーソナルコンピユータに収集するシステ
ムにおいて、上記各通信ポートと上記通信線は、
入出力ごとに発光ダイオードとホトトランジスタ
からなるホトカプラを用いて電気的に絶縁した接
続を行ない、上記通信線を用いて互いに並列に接
続した、上記端末用各パーソナルコンピユータの
通信ポートの出力側のホトカプラのホトトランジ
スタと、上記ホスト用パーソナルコンピユータの
通信ポートの入力側の発光ダイオードと、該発光
ダイオードの限流用抵抗と、直流電源とを上記通
信線を用いて直列に接続し、上記通信線を用いて
互いに並列に接続した、上記端末用各パーソナル
コンピユータの通信ポートの入力側のホトカプラ
の発光ダイオードと、該発光ダイオードの限流用
抵抗と、上記ホスト用パーソナルコンピユータの
通信ポートの出力側のホトトランジスタと、上記
直流電源とを上記通信線を用いて直列に接続する
ことを特徴とするデータ収集システム。 In a system in which a plurality of terminal personal computers are connected to one host personal computer through respective communication ports and communication lines, and data from the terminal personal computer is collected to the host personal computer, the above Each communication port and the above communication line are
A photocoupler on the output side of the communication port of each personal computer for the terminal, which is electrically isolated using a photocoupler consisting of a light emitting diode and a phototransistor for each input and output, and connected in parallel to each other using the communication line. A phototransistor, a light emitting diode on the input side of the communication port of the host personal computer, a current limiting resistor of the light emitting diode, and a DC power source are connected in series using the communication line, and using the communication line, a light emitting diode of a photocoupler on the input side of the communication port of each personal computer for the terminal, a current limiting resistor of the light emitting diode, and a phototransistor on the output side of the communication port of the personal computer for the host, which are connected in parallel to each other; , and the above-mentioned DC power supply are connected in series using the above-mentioned communication line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12128586U JPS6330046U (en) | 1986-08-07 | 1986-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12128586U JPS6330046U (en) | 1986-08-07 | 1986-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6330046U true JPS6330046U (en) | 1988-02-27 |
Family
ID=31010412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12128586U Pending JPS6330046U (en) | 1986-08-07 | 1986-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6330046U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534448U (en) * | 1991-10-15 | 1993-05-07 | 株式會社廣田 | Gas lighter |
| JPH0534447U (en) * | 1991-10-15 | 1993-05-07 | 株式會社廣田 | Gas lighter |
-
1986
- 1986-08-07 JP JP12128586U patent/JPS6330046U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534448U (en) * | 1991-10-15 | 1993-05-07 | 株式會社廣田 | Gas lighter |
| JPH0534447U (en) * | 1991-10-15 | 1993-05-07 | 株式會社廣田 | Gas lighter |
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