KR890002143Y1 - Modulating circuit of data transmission system - Google Patents
Modulating circuit of data transmission system Download PDFInfo
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- KR890002143Y1 KR890002143Y1 KR2019860003130U KR860003130U KR890002143Y1 KR 890002143 Y1 KR890002143 Y1 KR 890002143Y1 KR 2019860003130 U KR2019860003130 U KR 2019860003130U KR 860003130 U KR860003130 U KR 860003130U KR 890002143 Y1 KR890002143 Y1 KR 890002143Y1
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- circuit
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- transmission
- voltage
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4027—Coupling between buses using bus bridges
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0002—Serial port, e.g. RS232C
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 회로도이다.1 is a circuit diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
CON : 콘넥터 C1, C2: 콘버터CON: Connector C 1 , C 2 : Converter
LD : 라인드라이버 DS : 스위칭회로LD: Line Driver DS: Switching Circuit
ART : 비동기 송수신회로 D : 다이오드ART: Asynchronous Transceiver D: Diode
R1, R2: 저항 N1, N2: 반전게이트R 1 , R 2 : Resistor N 1 , N 2 : Inverting gate
C : 콘덴서 Q : 트랜지스터C: capacitor Q: transistor
본 고안은 데이터 전송방식 절환회로에 관한 것으로, 특히 데이터의 전류전송방식(20㎃방식)회로와 전압전송방식(RS-232C방식)회로를 절환하여서 데이터를 전송하는 회로에 관한 것이다.The present invention relates to a data transmission method switching circuit, and more particularly, to a circuit for transmitting data by switching a current transmission method (20 ㎃ method) circuit and a voltage transmission method (RS-232C method) circuit of data.
종래의 터미널(Terminal)시스템에서는 비동기 인터페이스 회로인 전류전송방식(20㎃방식)회로가 연결되어 있거나 또는 전압전송방식(RS-232C 방식)회로가 연결되어 있어서 데이터를 전송시에 터미널의 종류에 따라 터미널의 전송방식회로 (20㎃방식 또는 RS-232C방식)를 변경해야 하는 단점이 있었다.In a conventional terminal system, a current transmission type circuit (20 ㎃ type) circuit, which is an asynchronous interface circuit, or a voltage transfer type (RS-232C type) circuit is connected. There was a disadvantage that the transmission method circuit (20㎃ or RS-232C) of the terminal had to be changed.
따라서 본 고안의 목적은 상기한 단점을 해결하기 위하여 안출한 것으로서, 데이터의 전류전송방식(20㎃방식)회로와 전압전송방식(RS-232C방식)회로를 모두 터미널 시스템에 내장하여 사용자의 선택에 의해 절환되어서 데이터를 전송하는 회로를 제공하는 데 있다.Therefore, the object of the present invention was devised to solve the above-mentioned shortcomings, and both the current transmission (20 ㎃) circuit and the voltage transfer (RS-232C) circuit of the data are incorporated in the terminal system for the user's selection. It is to provide a circuit that is switched by to transfer data.
이하 제1도에 의거하여 본 고안의 상실시예를 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG. 1.
제1도는 본 고안의 회로도로서, 콘넥터(Connector)(CON)는 터미널 시스템에 장착하여 외부의 주변장치와 연결하는 접속부이다.1 is a circuit diagram of the present invention, a connector (CON) is a connection portion for mounting to a terminal system to connect to an external peripheral device.
라인드라이버(LD)는 콘넥터(CON)와 스위칭회로(DS) 사이에 설치한 전압전송방식(RS-232C)회로로서 콘넥터(CON)와 연결된 입출력 라인(Line)과 스위칭회로(DS)의 단자(P11, P12)에 연결된 라인을 절환하여 연결하는 회로이다.The line driver LD is a voltage transfer method RS-232C circuit installed between the connector CON and the switching circuit DS. The line driver LD of the input / output line and the switching circuit DS connected to the connector CON ( It is a circuit for switching the lines connected to P11, P12).
전류전송방식(20㎃방식)회로는 인가된 전압을 전류로 바꾸어서 전송하는 콘버터(Converter)(C1)와 인가된 전류를 전압으로 바꾸어서 전송하는 콘버터(C2)로 구성하는데, 본 고안에 있어서 콘버터(C1)는 콘넥터(CON)와 연결하고, 연결된 사이에는 다이오드(D1)를 연결한다.The current transmission method (20 ㎃ type) circuit consists of a converter (C1) for converting the applied voltage to a current and transmitting it, and a converter (C2) for converting the applied current to a voltage and transmitting it. C1) is connected to the connector (CON), and connects the diode (D1) between the connection.
그리고 콘버터(C1)의 출력단 신호는 반전게이트(N1)를 거쳐 스위칭회로(DS)의 입력단(P13)에 인가하도록 연결한다.The output terminal signal of the converter C1 is connected to the input terminal P13 of the switching circuit DS via the inversion gate N1.
콘넥터(CON)와 연결된 콘버터(C2)는 그 입력단을 트랜지스터(Q)의 콜렉터와 에미터를 연결하고, 연결된 두 라인 사이에는 콘덴서(C)를 연결하여, 콘덴서(C)의 일단에는 전원(Vcc)이 저항(R1)을 거쳐 인가되도록 연결한다. 그리고 트랜지스터(Q)의 에미터는 접지와 연결하고, 저항(R2)을 거쳐 베이스에도 연결하며, 스위칭회로(DS)의 출력단(P14)신호가 반전게이트(N2)를 거쳐 인가되도록 연결한다.The converter C2 connected to the connector CON connects the input terminal of the transistor Q to the collector and the emitter, and connects the capacitor C between two connected lines, and the power supply Vcc at one end of the capacitor C. ) Is connected via a resistor (R1). The emitter of the transistor Q is connected to the ground, and is connected to the base via a resistor R2, and is connected such that an output terminal P14 signal of the switching circuit DS is applied through the inverting gate N2.
스위칭회로(DS)는 콘넥터(CON)를 통하여 송수신되는 신호와 비동기 송수신회로(ART)의 단자(T)(R)에서 송수신되는 신호를 연결하는 회로이다.The switching circuit DS is a circuit connecting a signal transmitted and received through the connector CON and a signal transmitted and received at the terminal T and R of the asynchronous transmission and reception circuit ART.
비동기 송수신회로(ART)는 터미널간에 데이터를 송수신하는 회로이다.An asynchronous transmission and reception circuit (ART) is a circuit for transmitting and receiving data between terminals.
다음은 상기한 구성을 갖는 본 고안의 회로동작을 설명한 것이다.The following describes the circuit operation of the present invention having the above configuration.
터미널을 사용하는 사용자가 데이터를 전송하는 방식에 따라 전압전송방식(RS-232C 방식)이 선택될 때 스위칭회로(DS)의 단자(P2, P3, P5)가 "on"되어서 비동기 송수신회로(ART)에 인가되는 송수신 신호가 스위칭회로(DS)의 단자(P11, P12)를 거쳐서 라인드라이버(LD)에 인가된다.When the user using the terminal transmits data, the terminals P2, P3, and P5 of the switching circuit DS are "on" when the voltage transmission method (RS-232C method) is selected, and thus the asynchronous transmission / reception circuit (ART). ) Is applied to the line driver LD via the terminals P11 and P12 of the switching circuit DS.
즉, 데이터의 전압전송방식(RS-232C 방식)이 선택되어서 터미널간의 데이터 전송이 이루어진다.That is, the voltage transfer method (RS-232C method) of data is selected to perform data transfer between terminals.
그러나 데이터의 전류전송방식(20㎃방식)이 선택될 때 스위칭회로(DS)의 단자(PQ, P4)가 "on"되어서 데이터 전송이 이루어지는데, 데이터 송신시에는 콘넥터(CON)를 통한 데이터의 전압신호가 콘버터(C1)에 인가되어 전류(20㎃)신호로 바뀌어져 반전게이트(N1)를 거쳐 스위칭회로(DS)의 단자(P13)에 인가된다.However, when the data current transmission method (20 ㎃ method) is selected, the terminals PQ and P4 of the switching circuit DS are turned "on" to perform data transmission. The voltage signal is applied to the converter C1 to be converted into a current 20 mA signal and applied to the terminal P13 of the switching circuit DS via the inversion gate N1.
그리고 스위칭회로(DS)에 인가된 신호는 스위칭회로(DS)의 단자(P4)를 거쳐 비동기 송수신회로(ART)에 인가되어 상대 터미널에 전송한다.The signal applied to the switching circuit DS is applied to the asynchronous transmission / reception circuit ART via the terminal P4 of the switching circuit DS and transmitted to the counter terminal.
그리고 데이터 수신시에는 비동기 송수신회로(ART)에 인가된 수신신호가 스위칭회로(DS)의 단자(P1)에 인가되어 스위칭(Switching)된 단자(P14)를 거쳐 출력된다.When receiving data, the received signal applied to the asynchronous transmission / reception circuit ART is applied to the terminal P1 of the switching circuit DS and output through the switched terminal P14.
상기한 스위칭회로(DS)의 단자(P14)의 출력신호는 반전게이트(N2)를 거쳐서 트랜지스터(Q)의 베이스에 인가되어 도통된다.The output signal of the terminal P14 of the switching circuit DS is applied to the base of the transistor Q through the inversion gate N2 and is conducted.
이때 전원(Vcc)이 저항(R1) 및 도통된 트랜지스터(Q)를 거쳐 콘버터(C2)에 인가되어서 인가된 전류(20㎃)신호를 전압신호로 바꾸어 수신된다.At this time, the power supply Vcc is applied to the converter C2 via the resistor R1 and the conducting transistor Q, thereby converting the applied current 20 mA signal into a voltage signal.
따라서 상술한 본 고안에 의하면 데이터의 전류반송방식(20㎃방식)회로와 전압전송방식(RS-232C)회로가 모두 내장되어 있어서, 사용자의 스위칭회로(DS) 조작에 의해 간단하게 절환되어서 터미널의 종류에 따라 데이터를 전송할 수 있는 이점이 있다.Therefore, according to the present invention described above, both the current transfer method (20 ㎃ method) and the voltage transfer method (RS-232C) circuit of the data are built in, and are easily switched by the user's switching circuit (DS) operation. Depending on the type, there is an advantage in that data can be transmitted.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860003130U KR890002143Y1 (en) | 1986-03-15 | 1986-03-15 | Modulating circuit of data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860003130U KR890002143Y1 (en) | 1986-03-15 | 1986-03-15 | Modulating circuit of data transmission system |
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| Publication Number | Publication Date |
|---|---|
| KR870015284U KR870015284U (en) | 1987-10-24 |
| KR890002143Y1 true KR890002143Y1 (en) | 1989-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019860003130U KR890002143Y1 (en) | 1986-03-15 | 1986-03-15 | Modulating circuit of data transmission system |
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| KR (1) | KR890002143Y1 (en) |
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1986
- 1986-03-15 KR KR2019860003130U patent/KR890002143Y1/en not_active IP Right Cessation
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| KR870015284U (en) | 1987-10-24 |
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