JPS6037630Y2 - switch signal transmission circuit - Google Patents
switch signal transmission circuitInfo
- Publication number
- JPS6037630Y2 JPS6037630Y2 JP1976147487U JP14748776U JPS6037630Y2 JP S6037630 Y2 JPS6037630 Y2 JP S6037630Y2 JP 1976147487 U JP1976147487 U JP 1976147487U JP 14748776 U JP14748776 U JP 14748776U JP S6037630 Y2 JPS6037630 Y2 JP S6037630Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal transmission
- switch
- electrical equipment
- switch signal
- transmission circuit
- 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.)
- Expired
Links
Description
【考案の詳細な説明】
本考案は１つの電気機器装置のスイッチの開閉信号を他
の複数の電気機器装置に信号線を介して送るスイッチ信
号伝送回路に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switch signal transmission circuit that transmits open/close signals of a switch of one electrical equipment to a plurality of other electrical equipment via signal lines.
例えば、電子計算機システムは中央処理装置、記憶装置
、入出力装置、操作卓等の複数の電気機器装置から構成
されており、このようなシステムにおいては例えば操作
卓のような電気機器装置からスイッチ類を操作して他の
各装置に信号を送る場合がある。For example, a computer system is composed of multiple electrical devices such as a central processing unit, a storage device, an input/output device, and an operation console. may be used to send signals to other devices.
このようなスイッチ信号伝送回路はシステムの大型化に
伴なって、伝送のための線長が長くなる傾向にあり、従
来のスイッチ信号伝送回路ではこの線長を長くとれない
欠点があった。In such switch signal transmission circuits, the line length for transmission tends to become longer as the system becomes larger, and conventional switch signal transmission circuits have the disadvantage that this line length cannot be increased.
従って、本考案の目的は信号伝送線の線長を長くとれる
スイッチ信号伝送回路を提供することにある。Therefore, an object of the present invention is to provide a switch signal transmission circuit that allows the length of the signal transmission line to be increased.
以下図面を用いて本考案を詳細に説明する。The present invention will be explained in detail below using the drawings.
第１図は、従来のスイッチ信号伝送回路を示す図であり
、図中ＵＮＩＴ Ｏは接点を有するスイッチＳＷを有
する電気機器装置であり、Ｌ１〜Ｌｎはスイッチ信号を
伝送する信号伝送線、ｔＪＮＩＴ １〜ＬＪＮＩＴ
ｎはそれぞれ信号伝送線Ｌ１〜Ｌｎを介して送られてく
るスイッチ信号を受信する受信回路ＲＶ１〜ＲＶｎを有
する複数の電気機器装置である。FIG. 1 is a diagram showing a conventional switch signal transmission circuit, in which UNIT O is an electrical equipment device having a switch SW having a contact, L1 to Ln are signal transmission lines for transmitting switch signals, and tJNIT 1 is a diagram showing a conventional switch signal transmission circuit. ~LJNIT
n is a plurality of electrical equipment devices each having receiving circuits RV1 to RVn that receive switch signals sent via signal transmission lines L1 to Ln.
Ｄ１〜Ｄｎはダイオードであり、１１〜ｍは信号伝送線
Ｌ１〜Ｌｎのインピーダンスを示し、Ｒ１−Ｒｎは信号
伝送線Ｌ１〜Ｌｎの整合用抵抗であり、−Ｖｌ〜−Ｖｎ
は電源を示す。D1 to Dn are diodes, 11 to m indicate the impedance of the signal transmission lines L1 to Ln, R1 to Rn are matching resistors of the signal transmission lines L1 to Ln, and -Vl to -Vn
indicates power supply.
第１図において、スイッチＳＷを閉じると受信回路ＲＶ
ｌ〜ＲＶｎの入力端の点１，２．ｎの電位は高レベル（
はぼＯボルト）となる。In Fig. 1, when the switch SW is closed, the receiving circuit RV
Points 1, 2 at the input ends of l to RVn. The potential of n is at a high level (
is O-volt).
ここで点１．２．ｎの電圧■を求めると
Ｖ ＝ ０−Ｖｍｆ−ｒｍｉ （ｍは１．２．−−
−−−−ｎ）
となる。Here points 1.2. To find the voltage ■ of n, V = 0-Vmf-rmi (m is 1.2.--
-----n) becomes.
ここでＶｍｆはダイオードＤ１〜Ｄｎの順方向電圧ｒｍ
は信号伝送線Ｌ１〜Ｌｎの直流抵抗、ｉは信号伝送線Ｌ
１〜Ｌｎの電流である。Here, Vmf is the forward voltage rm of the diodes D1 to Dn.
is the DC resistance of the signal transmission lines L1 to Ln, and i is the signal transmission line L
The current is 1 to Ln.
すなわち、点１，２．ｎにおいてスイッチＳＷが閉じら
れた時の信号レベル（はぼＯボルト）を保証するために
は１１〜ｍなる信号伝送線の長さをある程度以上は長く
とれないという問題がある。That is, points 1, 2 . In order to guarantee the signal level (approximately 0 volts) when the switch SW is closed at n, there is a problem that the length of the signal transmission line, 11 to m, cannot be increased beyond a certain level.
ここで、電気機器装置ＬＪＮＩＴＱ中のダイオードＤ１
〜Ｄｎは電気機器装置ＵＮＩＴ ｌ 〜ＵＮＩＴｎ中の
ある電源−ｖ１〜−Ｖｎの（オン、オフ）の影響が各信
号伝送線Ｌ１〜Ｌｎを通じてまわり込み多の電気機器に
影響を及ぼすことを防止するためのものであり、このダ
イオードＤ１〜Ｄｎを押入しないようにはできない。Here, diode D1 in electrical equipment LJNITQ
~Dn prevents the influence (ON, OFF) of certain power supplies -v1 to -Vn in the electrical equipment device UNIT l ~UNITn from affecting many electrical devices through each signal transmission line L1 to Ln. Therefore, it is impossible to prevent the diodes D1 to Dn from being inserted.
すなわち、例えばダイオードＤ１〜Ｄｎがなかったもの
とし、スイッチＳＷが開いており、ＴＪＮＩＴ ｌ 〜
ＵＮＩＴｎの電源−■１〜−■ｎがオンであれば、点１
〜ｎの電位は低レベル（−Ｖボルト）である。That is, for example, assume that there are no diodes D1 to Dn, the switch SW is open, and TJNIT l to
If UNITn power supply -■1 to -■n is on, point 1
The potential at ~n is at a low level (-V volts).
ここでＵＮＩＴ ｌの電源−■１がオフになると点１
〜ｎは高レベル（はぼＯボルト）になってしまい、スイ
ッチＳＷが閉じられた場合と同じになり、誤動作を起こ
すものである。Here, when UNIT l's power source -■1 is turned off, the point is 1.
~n becomes a high level (approximately O volts), which is the same as when the switch SW is closed, causing a malfunction.
本考案は、この電源のオン、オフ時のまわり込みの影響
をなくすことができ、かつ伝送線Ｌ１〜Ｌｎの線長を比
較的長くとることができる回路を提供するものである。The present invention provides a circuit that can eliminate the influence of this wrap-around when the power is turned on and off, and can make the lengths of the transmission lines L1 to Ln relatively long.
第２図は、本考案の一実施例を示す図であり、図中第１
図と同一部分は同一記号を付して示しである。FIG. 2 is a diagram showing an embodiment of the present invention.
The same parts as in the figures are indicated with the same symbols.
第２図において第１図と異なる点はダイオードＤ１〜Ｄ
ｎが電気機器装置ＵＮＩＴ１〜ＵＮＩＴｎの受信回路Ｒ
Ｖｌ〜ＲＶｎの入力端と整合抵抗Ｒ１〜Ｒｎの間に挿入
され、受信回路ＲＶ ｌ〜ＲＶｎの入力端と電源−■１
〜−Ｖｎの間にダイオードＤ１〜Ｄｎと抵抗Ｒ１〜Ｒｎ
との直列回路が接続された構成となっている点である。The difference in Fig. 2 from Fig. 1 is that the diodes D1 to D
n is the receiving circuit R of the electrical equipment device UNIT1 to UNITn
It is inserted between the input terminals of Vl to RVn and matching resistors R1 to Rn, and the input terminals of receiving circuits RVl to RVn and the power supply -■1
Diodes D1 to Dn and resistors R1 to Rn between ~-Vn
The point is that the configuration is such that a series circuit is connected with.
第２図のスイッチ信号伝送回路において、受信回路ＲＶ
ｌ〜ＲＶｎの入力端の点１〜ｎの電圧を求めると、
Ｖ＝＝Ｏ−ｒｍｉ （ｍ＝Ｌ ２９ ”・・ｎ
）となり、第１図に比べてＶｍｆに相当する分だけ電圧
が高くなり、その分信号伝送線路Ｌ１〜Ｌｎの抵抗ｒ１
〜ｍが太きとれる。In the switch signal transmission circuit shown in Fig. 2, the receiving circuit RV
When calculating the voltage at points 1 to n at the input terminals of l to RVn, V==O−rmi (m=L 29 ”...n
), the voltage increases by an amount corresponding to Vmf compared to FIG. 1, and the resistance r1 of the signal transmission lines L1 to Ln increases accordingly.
~m can be thickened.
すなわち、線長を長くとることができるものである。In other words, the wire length can be increased.
ここで、［１−Ｖ１〜−Ｖｎのオン、オフ時を考えると
受信回路ＲＶｌ〜ＲＶｎの入力端と電源−■１〜−Ｖｎ
間にはダイオードＤ１〜Ｄｎが挿入されているため、信
号伝送線Ｌ１〜Ｌｎを通して他の装置にまわり込む恐れ
はない。Here, considering the on/off state of [1-V1 to -Vn, the input terminals of the receiving circuits RVl to RVn and the power supply -■1 to -Vn
Since the diodes D1 to Dn are inserted between them, there is no possibility that the signal may be transmitted to other devices through the signal transmission lines L1 to Ln.
以上説明したように、本考案によれば受信回路ＲＶｌ〜
ＲＶｎを有する装置の電源−ｖ１〜−Ｖｎのオン、オフ
の影響を防止し、かつスイッチ信号伝送線の長さを従来
より長くとることができるものである。As explained above, according to the present invention, the receiving circuit RVl~
It is possible to prevent the influence of turning on and off the power supplies -v1 to -Vn of a device having RVn, and to make the length of the switch signal transmission line longer than before.
なお、電源−■１〜−Ｖｎの極性によりダイオードＤ１
〜Ｄｎの向きがわかることはいうまでもない。In addition, depending on the polarity of the power supply -■1 to -Vn, the diode D1
It goes without saying that the direction of ~Dn can be determined.
第１図は従来のスイッチ信号伝送回路を示す図、第２図
は本考案によるスイッチ信号伝送回路を示す図である。
図中ＵＮＩＴＱは、接点を有するスイッチＳＷを有する
電気機器装置であり、Ｌ１〜Ｌｎはスイッチ信号を伝送
する信号伝送線、ＵＮＩＴ １〜ＵＮＩＴ ｎはそれ
ぞれ信号伝送線Ｌ１〜Ｌｎを介して送られてくるスイッ
チ信号を受信する受信回路ＲＶ ｌ〜ＲＶｎを有する複
数の電気機器装置である。
Ｄ１〜Ｄｎはダイオードであり、ｒ１〜ｒｎは信号伝送
線Ｌ１〜Ｌｎのインピーダンスを示し、Ｒ１−Ｒｎは信
号伝送線Ｌ１〜Ｌｎの整合用抵抗であり、−Ｖｌ〜−Ｖ
ｎは電源を示す。FIG. 1 is a diagram showing a conventional switch signal transmission circuit, and FIG. 2 is a diagram showing a switch signal transmission circuit according to the present invention. In the figure, UNITQ is an electrical equipment device having a switch SW having contacts, L1 to Ln are signal transmission lines for transmitting switch signals, and UNIT 1 to UNIT n are signals sent via signal transmission lines L1 to Ln, respectively. This is a plurality of electrical equipment devices having receiving circuits RV1 to RVn that receive incoming switch signals. D1 to Dn are diodes, r1 to rn indicate the impedance of the signal transmission lines L1 to Ln, R1 to Rn are matching resistors of the signal transmission lines L1 to Ln, and -Vl to -V
n indicates a power source.
Claims (1)
電気機器装置ＵＮＩＴ Ｏ内の１つのスイッチＳＷの
開閉信号をそれぞれ互いに独立した電源に結合された信
号伝送線Ｌ１〜Ｌｎを介して受信する受信回路ＲＶｌ〜
ＲＶｎを有する複数の電気機器装置ＵＮＩＴ ｌ〜ＵＮ
ＩＴｎからなるスイッチ信号伝送回路において、前記受
信回路ＲＶ ｌ〜ＲＶｎの入力端と前記した互いに独立
な電源−■１〜−Ｖｎ間にそれぞれダイオードＤ１〜Ｄ
ｎと抵抗Ｒ１〜Ｒｎとからなる直列回路を接続したこと
を特徴とするスイッチ信号伝送回路。A receiving circuit RVl that receives open/close signals of one electrical equipment device UNITO including a switch SW and one switch SW in the electrical equipment device UNITO via signal transmission lines L1 to Ln each coupled to mutually independent power supplies. ~
Multiple electrical equipment devices UNIT l~UN with RVn
In a switch signal transmission circuit consisting of ITn, diodes D1 to D are connected between the input terminals of the receiving circuits RVl to RVn and the mutually independent power supplies -1 to -Vn, respectively.
1. A switch signal transmission circuit characterized in that a series circuit consisting of Rn and resistors R1 to Rn is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1976147487U JPS6037630Y2 (en) | 1976-11-01 | 1976-11-01 | switch signal transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1976147487U JPS6037630Y2 (en) | 1976-11-01 | 1976-11-01 | switch signal transmission circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5364536U JPS5364536U (en) | 1978-05-31 |
| JPS6037630Y2 true JPS6037630Y2 (en) | 1985-11-09 |
Family
ID=28755915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1976147487U Expired JPS6037630Y2 (en) | 1976-11-01 | 1976-11-01 | switch signal transmission circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6037630Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5098618U (en) * | 1974-01-08 | 1975-08-16 |
-
1976
- 1976-11-01 JP JP1976147487U patent/JPS6037630Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5364536U (en) | 1978-05-31 |
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