JPH0321097Y2 - - Google Patents
Info
- Publication number
- JPH0321097Y2 JPH0321097Y2 JP1984094708U JP9470884U JPH0321097Y2 JP H0321097 Y2 JPH0321097 Y2 JP H0321097Y2 JP 1984094708 U JP1984094708 U JP 1984094708U JP 9470884 U JP9470884 U JP 9470884U JP H0321097 Y2 JPH0321097 Y2 JP H0321097Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- input
- power supply
- terminal
- 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
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Dc Digital Transmission (AREA)
- Small-Scale Networks (AREA)
- Selective Calling Equipment (AREA)
Description
【考案の詳細な説明】
［技術分野］
本考案は、親機から一対の信号線を介して時分
割多重伝送される伝送データを受信する端末器に
関するものである。[Detailed Description of the Invention] [Technical Field] The present invention relates to a terminal device that receives transmission data that is time-division multiplexed and transmitted from a base device via a pair of signal lines.
［背景技術］
第２図は本考案に係る時分割多重伝送装置の概
略構成を示すもので、１は親機、２は信号線、３
は端末器であり、親機１から第４図に示すような
伝送信号Vsを送出して特定の端末器３に伝送デ
ータを時分割多重伝送し、端末器３はこの伝送さ
れた伝送データを受信して負荷９を制御するよう
になつている。ここに、伝送信号Vsはパルス幅
変調された複極のベースバンド信号であり、この
伝送信号Vsにて端末器３をアクセスするアドレ
スデータも同時に伝送される。一方、第３図に示
す端末器３の信号処理回路４では、この伝送信号
Vsを受信し自己の固有アドレスと一致したアド
レスデータが伝送されたとき、それに続いて伝送
される伝送データを取り込んで負荷９を制御する
制御信号を出力端子Ｏから出力する。信号処理回
路４に供給される回路電源は電源回路５にて伝送
信号Vsを整流するとともに定電圧化して形成さ
れるようになつており、電源線が不要となつて配
線が簡略化されるようになつている。ところで、
このような従来例において、信号線２を介して伝
送される伝送信号Vsを整流して信号処理回路４
の回路電源を得ているので、負荷９の制御をリレ
ー接点を用いずに出力用トランジスタQ0を用い
て行つている場合、親機１、端末器３および負荷
９のグランドラインが信号線２を介して接続され
て共通になり、多数の端末器３が接続されている
信号線２が多箇所でアース（各負荷側でそれぞれ
アース）されることになつて信号伝送に支障が起
きる場合があるという問題があつた。図中、Ｅは
電子回路よりなる負荷９に電源を供給する負荷側
電源である。そこで、端末器３の回路電源を別系
統にすることが考えられるが、総ての端末器３の
回路電源を別系統にすれば配線が大幅に複雑化
し、また、必要に応じて（出力リレーを用いた場
合には回路電源を別系統にする必要がない）回路
電源を別系統にする場合には、回路電源の供給回
路が異なつた２種類の端末器３を用意しなければ
ならなず、端末器３の品種が増加してコストアツ
プになるという問題があつた。[Background Art] Fig. 2 shows a schematic configuration of a time division multiplex transmission device according to the present invention, in which 1 is a base unit, 2 is a signal line, and 3 is a base unit.
is a terminal device, which transmits a transmission signal Vs as shown in FIG. The load 9 is controlled by receiving the signal. Here, the transmission signal Vs is a pulse width modulated bipolar baseband signal, and address data for accessing the terminal device 3 is also transmitted at the same time with this transmission signal Vs. On the other hand, in the signal processing circuit 4 of the terminal device 3 shown in FIG.
When it receives Vs and transmits address data that matches its own unique address, it takes in the subsequently transmitted data and outputs a control signal to control the load 9 from the output terminal O. The circuit power supplied to the signal processing circuit 4 is formed by rectifying the transmission signal Vs and making it a constant voltage in the power supply circuit 5, so that the power supply line is not required and the wiring is simplified. It's getting old. by the way,
In such a conventional example, the transmission signal Vs transmitted via the signal line 2 is rectified and the signal processing circuit 4
When the load 9 is controlled using the output transistor Q 0 without using relay contacts, the ground lines of the base unit 1, terminal unit 3, and load 9 are connected to the signal line 2. The signal line 2, to which many terminal devices 3 are connected, is grounded at multiple locations (separately grounded on each load side), which may cause trouble in signal transmission. There was a problem. In the figure, E is a load-side power supply that supplies power to a load 9 consisting of an electronic circuit. Therefore, it is conceivable to use a separate system for the circuit power supply of the terminal device 3, but if the circuit power supply for all the terminal devices 3 is separated from the system, the wiring will be significantly complicated, and if necessary (output relay (If the circuit power supply is used, there is no need to separate the circuit power supply systems.) If the circuit power supply is used in separate systems, it is necessary to prepare two types of terminal devices 3 with different circuit power supply circuits. There was a problem that the number of types of terminal devices 3 increased, leading to an increase in costs.
［考案の目的］
本考案は上記の点に鑑みて為されたものであ
り、その目的とするところは、回路電源を別系統
によるか否かを入力端子の接続の変更によつて容
易に選択でき、多品種化を回避してコスト安くす
ることができる時分割多重伝送装置の端末器を提
供することにある。[Purpose of the invention] The present invention was made in view of the above points, and its purpose is to easily select whether or not to use a separate system for circuit power supply by changing the connection of input terminals. It is an object of the present invention to provide a terminal device for a time division multiplex transmission device that can reduce costs by avoiding diversification.
［考案の開示］
（実施例）
第１図は本考案一実施例を示すものであり、従
来例と同様の時分割多重伝送装置に用いる端末器
３において、この端末器３を受信信号を信号処理
する信号処理回路４と、入力電圧をダイオードブ
リツジDBにて整流するとともに定電圧回路VSに
て定電圧化して信号処理回路４に供給する電源回
路５と、信号処理回路３へ入力される信号をフオ
トカプラPCにてアイソレーシヨンして取り込む
アイソレーシヨン回路６とで形成され、電源回路
５へ電圧を入力せしめる一対の入力端子７ａ，７
ｂと、アイソレーシヨン回路６へ信号を入力せし
める一対の入力端子７ａ，８ｂとをそれぞれ別個
に設けたものである。図中、Ｄはバイパス用のダ
イオードである。[Disclosure of the invention] (Embodiment) Fig. 1 shows an embodiment of the invention, in which a terminal device 3 used in a time division multiplex transmission device similar to the conventional example is used to transmit a received signal as a signal. The input voltage is input to the signal processing circuit 4 to be processed, the power supply circuit 5 which rectifies the input voltage with the diode bridge DB, makes it constant voltage with the constant voltage circuit VS and supplies it to the signal processing circuit 4, and the signal processing circuit 3. A pair of input terminals 7a and 7 are formed with an isolation circuit 6 that isolates and takes in signals with a photocoupler PC, and input voltage to the power supply circuit 5.
b, and a pair of input terminals 7a and 8b for inputting signals to the isolation circuit 6 are provided separately. In the figure, D is a bypass diode.
いま、第３図従来例に示すように端末器３の信
号処理回路４から負荷９に出力用トランジスタ
Q0を介して信号が出力されている場合、端末器
３の信号処理回路４には信号線２を介して電源を
供給せずに、別系統から電源を供給する必要があ
るので、入力端子７ａ，７ｂ間に交流電源AC（例
えば、商用電源を降圧した電源）を入力し、入力
端子８ａ，８ｂに信号線２を接続して信号線２と
負荷側回路とをアイソレーシヨン回路６によつて
電気的に絶縁してグランドラインの共用化を回避
する。一方、信号処理回路４から出力リレー（図
示せず）の接点を介して負荷９に信号が出力され
ている場合、端末器３と負荷９が出力リレーによ
つて電気的に絶縁されているので、信号処理回路
４に信号線２を介して電源を供給して配線を簡略
化するため、入力端子７ａと８ａおよび７ｂと８
ｂをそれぞれ共通接続して信号線２に接続する。
このようにすれば電源回路５に信号線２を介して
親機１から伝送される伝送信号Vsが入力され、
伝送信号Vsを整流するとともに定電圧化して信
号処理回路４に供給される回路電源が形成され
る。しかして、本発明にあつては、入力端子７ａ
と８ａおよび７ｂと８ｂを共通接続するか否かを
選択することにより、端末器３の信号処理回路４
に信号線２を介して電源を供給するか別系統から
電源を供給するかを容易に選択することができ、
従来例のように回路電源の供給方法が異なつた２
種類の端末器３を用意する必要がないので、多品
種化が回避できるコストを安くすることができる
ことになる。 Now, as shown in the conventional example in FIG. 3, an output transistor is connected from the signal processing circuit 4 of the terminal 3 to the load 9.
When a signal is output via Q 0 , it is necessary to supply power to the signal processing circuit 4 of the terminal 3 from a separate system instead of via the signal line 2, so the input terminal Input an alternating current power supply AC (for example, a step-down commercial power supply) between 7a and 7b, connect the signal line 2 to the input terminals 8a and 8b, and connect the signal line 2 and the load side circuit to the isolation circuit 6. Therefore, it is electrically insulated to avoid sharing the ground line. On the other hand, when a signal is output from the signal processing circuit 4 to the load 9 via the contacts of an output relay (not shown), the terminal 3 and the load 9 are electrically isolated by the output relay. In order to supply power to the signal processing circuit 4 via the signal line 2 and simplify wiring, input terminals 7a and 8a and 7b and 8
b are commonly connected and connected to the signal line 2.
In this way, the transmission signal Vs transmitted from the base unit 1 via the signal line 2 is input to the power supply circuit 5,
A circuit power supply is formed which rectifies the transmission signal Vs and makes it a constant voltage to be supplied to the signal processing circuit 4. Therefore, in the present invention, the input terminal 7a
By selecting whether or not to connect 8a and 7b and 8b in common, the signal processing circuit 4 of the terminal 3
You can easily select whether to supply power through signal line 2 or from a separate system.
Unlike the conventional example, the circuit power supply method is different2
Since there is no need to prepare different types of terminal devices 3, it is possible to avoid diversification and reduce costs.
［考案の効果］
本考案は上述のように、親機から一対の信号線
を介して時分割多重伝送されるデータを受信する
端末器であつて、受信信号を信号処理する信号処
理回路と、入力電圧を整流するとともに定電圧化
して信号処理回路に供給する電源回路と、信号処
理回路へ入力される信号をアイソレーシヨンして
取り込むアイソレーシヨン回路とで形成され、電
源回路へ電圧を入力せしめる一対の第１入力端子
と、アイソレーシヨン回路へ信号を入力せしめる
一対の第２入力端子とをそれぞれ別個に設け、両
入力端子をそれぞれ共通接続して信号線を接続す
るか、第１入力端子に別電源電圧を入力するとと
もに第２入力端子に信号線を接続するかを選択自
在としたものであるので、回路電源を別系統にす
るか否かを入力端子の接続の変更によつて容易に
選択でき、回路電源の供給方法が異なつた端末器
を用意する必要がなく、端末器の多品種化が回避
できてコスト安くすることができるという効果が
ある。[Effects of the invention] As described above, the present invention is a terminal device that receives data time-division multiplexed from a base unit via a pair of signal lines, and includes a signal processing circuit that processes the received signal; It is formed by a power supply circuit that rectifies and constantizes the input voltage and supplies it to the signal processing circuit, and an isolation circuit that isolates and captures the signal input to the signal processing circuit, and inputs the voltage to the power supply circuit. Either a pair of first input terminals for inputting a signal to the isolation circuit and a pair of second input terminals for inputting a signal to the isolation circuit are provided separately, and both input terminals are connected in common to connect the signal line. Since it is possible to freely select whether to input a separate power supply voltage to the terminal and connect the signal line to the second input terminal, it is possible to determine whether or not to use a separate circuit power supply system by changing the connection of the input terminal. It is easy to select, there is no need to prepare terminals with different circuit power supply methods, it is possible to avoid a wide variety of terminals, and the cost can be reduced.
第１図は本考案一実施例の回路図、第２図は本
考案に係る時分割多重伝送装置の概略構成図、第
３図は従来例の問題点を示す図、第４図は同上の
動作説明図である。
１は親機、２は信号線、３は端末器、４は信号
処理回路、５は電源回路、６はアイソレーシヨン
回路、７ａ，７ｂ，８ａ，８ｂは入力端子であ
る。
Fig. 1 is a circuit diagram of an embodiment of the present invention, Fig. 2 is a schematic configuration diagram of a time division multiplex transmission device according to the present invention, Fig. 3 is a diagram showing problems in the conventional example, and Fig. 4 is the same as the above. It is an operation explanatory diagram. 1 is a base unit, 2 is a signal line, 3 is a terminal device, 4 is a signal processing circuit, 5 is a power supply circuit, 6 is an isolation circuit, and 7a, 7b, 8a, and 8b are input terminals.
Claims (1)
される伝送データを受信する端末器であつて、受
信信号を信号処理する信号処理回路と、入力電圧
を整流するとともに定電圧化して信号処理回路に
供給する電源回路と、信号処理回路へ入力される
信号をアイソレーシヨンして取り込むアイソレー
シヨン回路とで形成され、電源回路へ電圧を入力
せしめる一対の第１入力端子と、アイソレーシヨ
ン回路へ信号を入力せしめる一対の第２入力端子
とをそれぞれ別個に設け、両入力端子をそれぞれ
共通接続して信号線を接続するか、第１入力端子
に別電源電圧を入力するとともに第２入力端子に
信号線を接続するかを選択自在としたことを特徴
とする時分割多重伝送装置の端末器。 A terminal device that receives transmission data that is time-division multiplexed from a base device via a pair of signal lines, and includes a signal processing circuit that processes the received signal, and a signal processing circuit that rectifies and constants the input voltage. It is formed by a power supply circuit that supplies the circuit, and an isolation circuit that isolates and takes in the signal input to the signal processing circuit, and includes a pair of first input terminals that input voltage to the power supply circuit, and an isolation circuit that isolates and takes in the signal input to the signal processing circuit. Either a pair of second input terminals for inputting signals to the circuit are provided separately, and both input terminals are connected in common to connect the signal line, or a separate power supply voltage is input to the first input terminal and the second input terminal is connected to the second input terminal. A terminal device for a time division multiplex transmission device, characterized in that it is possible to freely select whether to connect a signal line to a terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9470884U JPS619951U (en) | 1984-06-25 | 1984-06-25 | Terminal device of time division multiplex transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9470884U JPS619951U (en) | 1984-06-25 | 1984-06-25 | Terminal device of time division multiplex transmission equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS619951U JPS619951U (en) | 1986-01-21 |
| JPH0321097Y2 true JPH0321097Y2 (en) | 1991-05-08 |
Family
ID=30653425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9470884U Granted JPS619951U (en) | 1984-06-25 | 1984-06-25 | Terminal device of time division multiplex transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS619951U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0779856B2 (en) * | 1988-10-14 | 1995-08-30 | ルソー株式会社 | Ball-proof device in golf driving range |
| JPH0721253B2 (en) * | 1991-05-15 | 1995-03-08 | 株式会社エスシイエス企画 | Seat tensioning tool, its attachment adjusting tool, and a seat to be stretched by the tensioning tool |
| JPH073119B2 (en) * | 1991-08-29 | 1995-01-18 | 株式会社エスシイエス企画 | Seat tensioning tool and sheet to be stretched by the tensioning tool |
| JPH073120B2 (en) * | 1991-01-10 | 1995-01-18 | 株式会社エスシイエス企画 | Seat tensioning tool, its attachment adjusting tool, and a seat to be stretched by the tensioning tool |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392622A (en) * | 1977-01-25 | 1978-08-14 | Kokusai Electric Co Ltd | Method of supplying power to terminal unit |
| JPS55147799A (en) * | 1979-05-07 | 1980-11-17 | Ricoh Kk | Data transmitter |
-
1984
- 1984-06-25 JP JP9470884U patent/JPS619951U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392622A (en) * | 1977-01-25 | 1978-08-14 | Kokusai Electric Co Ltd | Method of supplying power to terminal unit |
| JPS55147799A (en) * | 1979-05-07 | 1980-11-17 | Ricoh Kk | Data transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS619951U (en) | 1986-01-21 |
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