JPH0239751A - Modulator-demodulator - Google Patents

Modulator-demodulator

Info

Publication number
JPH0239751A
JPH0239751A JP63191206A JP19120688A JPH0239751A JP H0239751 A JPH0239751 A JP H0239751A JP 63191206 A JP63191206 A JP 63191206A JP 19120688 A JP19120688 A JP 19120688A JP H0239751 A JPH0239751 A JP H0239751A
Authority
JP
Japan
Prior art keywords
control part
control
polling
control unit
communication
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
Application number
JP63191206A
Other languages
Japanese (ja)
Inventor
Tsuyoshi Abe
強 阿部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP63191206A priority Critical patent/JPH0239751A/en
Publication of JPH0239751A publication Critical patent/JPH0239751A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54—Testing for continuity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Small-Scale Networks (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To connect many transmission lines to a communication processor by executing a polling control part before the data transfer between a communication controller and terminal equipment through a modulator-demodulator providing a branching control part, a command control part and a polling control part. CONSTITUTION:When a branching control part 11 receives an activating signal (ER) generated from a communication controller 1, it is made into a control starting condition, and the part 11 supplies a data signal continuously sent by the communication controller 1 to a command control part 13. The command control part 13 receives the data signal supplied from the communication controller 1, and sets it to a polling control part 14. A terminal control signal is sent from the polling control part 14 through the branching control part 11 to a modulator-demodulator 12. The data signal outputted from the communication controller 1 is sent to the modulator-demodulator 12 while being checked by the polling control part 14.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は変復調装置に関し、特にデータ伝送におけるポ
ーリング制御を行なうために用いられる変復装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a modulation/demodulation device, and particularly to a modulation/demodulation device used for performing polling control in data transmission.

（従来の技術） 通信制御装置と端末装置との間の通信回線を介した通信
は、通常、変復調装置を用いて行なわれている。(Prior Art) Communication via a communication line between a communication control device and a terminal device is normally performed using a modulation/demodulation device.

従来この種の通信方式においては、通信制御装置から伝
送すべき信号を変復調装置により変調し、変調信号を通
信回線を介して端末装置に伝送し、当該端末装置からの
応答は通信回線を介して変復装置で受信、復調して通信
制御装置へ送出する。Conventionally, in this type of communication system, a signal to be transmitted from a communication control device is modulated by a modulation/demodulation device, the modulated signal is transmitted to a terminal device via a communication line, and a response from the terminal device is transmitted via the communication line. The modulator receives it, demodulates it, and sends it to the communication control device.

このように従来の方式では端末装置とのデータ転送前の
ポーリング制御はすべて通信制御装置が行なっていた。In this way, in the conventional system, the communication control device performs all polling control before data transfer with the terminal device.

（発明が解決しようとする課題） 上述した従来方式においては、端末装置とのブタ授受を
行なうためのポーリング制御は、通信制御装置が各通信
回線毎に行われていた。したがって、通信制御装置の各
通信回線制御部毎にポーリング制御の異なる通信回線を
多く接続することが不可能であるという欠点がある。(Problems to be Solved by the Invention) In the conventional system described above, the communication control device performs polling control for each communication line to exchange data with the terminal device. Therefore, there is a drawback that it is impossible to connect many communication lines with different polling controls to each communication line control unit of the communication control device.

（課題を解決するための手段） 本発明は、通信制御装置と端末装置との間の通信制御を
行う変復調装置において、前記通信制御装置および前記
端末装置からの各種信号を受け、前記各種信号の種類に
応じて切換え出力する分岐制御部と、この分岐制御部か
らのコマンド信号を受ｒ、１シ、コマンド制御するコマ
ンド制御部と、前記分岐制御部から送られてくる前記通
信制御装置および前記端末装置からの制御信号を受けて
ポーリング／セレクタ制御を行うポーリング制御部と、
ｉｊ前記分岐制御部から送られてくる前記通信制御装置
からの信号を変調して前記端末装置に送出するとともに
、前記端末装置からの信号を復調して前記通信制御装置
に送出する変復調器を備えて成る。(Means for Solving the Problems) The present invention provides a modulation/demodulation device that performs communication control between a communication control device and a terminal device, which receives various signals from the communication control device and the terminal device, and receives various signals from the communication control device and the terminal device. a branch control unit that switches output depending on the type; a command control unit that receives a command signal from the branch control unit and performs command control; the communication control device that receives the command signal from the branch control unit; a polling control unit that performs polling/selector control in response to a control signal from a terminal device;
ij, comprising a modulator/demodulator that modulates a signal from the communication control device sent from the branch control unit and sends it to the terminal device, and demodulates a signal from the terminal device and sends it to the communication control device; It consists of

（実施例） 次に本発明について図面を参照して説明する。(Example) Next, the present invention will be explained with reference to the drawings.

第１図は、本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.

通信制御装置１から発生される起動信号（ＥＲ）を分岐
制御部１１が受信すると、制御開始状態となり、通信制
御装置１が続いて送出するデータ信号をコマンド制御部
１３に供給する。コマンド制御部１３は通信制御装置１
から供給されるデータ信号を受けてポーリング制御部１
４にセットする。When the branch control unit 11 receives the activation signal (ER) generated from the communication control device 1, the branch control unit 11 enters a control start state and supplies the command control unit 13 with a data signal that the communication control device 1 subsequently sends. The command control unit 13 is the communication control device 1
Polling control unit 1 receives a data signal supplied from
Set to 4.

こうして通信制御装置１から送出されるポーリング制御
用の手順プログラムを示すデータはポーリング制御部１
４にセットされる。この手順プログラムデータのセット
が終了すると、ポーリング制御部１４からは分岐制御部
１１を経由して変復調部１２に端末制御信号が送出され
る。通信回線１０１を介して送出された信号は端末装置
２で受信され、端末装置２からは応答信号が返送される
。The data indicating the procedure program for polling control sent from the communication control device 1 in this way is sent to the polling control unit 1.
Set to 4. When this procedure program data setting is completed, a terminal control signal is sent from the polling control section 14 to the modulation/demodulation section 12 via the branching control section 11. The signal sent via the communication line 101 is received by the terminal device 2, and the terminal device 2 returns a response signal.

応答信号は変復調部１２で復調された後、ポーリング制
御部１４で受信され、端末装置との接続準備が完了した
ことが、ポーリング制御部１４からコマンド制御部１３
、分岐制御部１１を介して制御信号が応答として通信制
御装置１へ返送されることにより通信制御装置１側に知
らされる。After the response signal is demodulated by the modulation/demodulation unit 12, it is received by the polling control unit 14, and the polling control unit 14 sends a message to the command control unit 13 indicating that the preparation for connection with the terminal device is completed.
, the control signal is sent back to the communication control device 1 as a response via the branch control unit 11, so that the communication control device 1 side is notified.

その後、通信制御装置１からデータ転送制御信号（Ｒ３
等）を分岐制御部１を介してコマンド制御部１３へ送出
することによってデータ転送の準備が行われる０次に通
信制御装置１から出力されるデータ信号はポーリング制
御部１４でチエツクされながら、変復調部１２へ送出さ
れる。変復調部１２ではこのデータ信号が変調されて、
通信回線１０１を介して端末装置２に送出される。＠末
装置２からの応答信号および返送データ信号は、上記と
逆の手順で送出され、変復調部１２にて復調されて、通
信制御装置１に返送される。After that, the data transfer control signal (R3
etc.) to the command control unit 13 via the branch control unit 1 to prepare for data transfer. The data signal outputted from the communication control unit 1 at the 0th order is checked by the polling control unit 14 and modulated/demodulated. The information is sent to section 12. This data signal is modulated in the modulation/demodulation section 12, and
It is sent to the terminal device 2 via the communication line 101. The response signal and return data signal from the terminal device 2 are sent out in the reverse procedure to the above, demodulated by the modulation/demodulation section 12, and sent back to the communication control device 1.

（発明の効果） 以上説明したように本発明は、通信制御装置と端末装置
とのデータ転送前のポーリング制御部を分岐制御部、コ
マンド制御部およびポーリング制御部を備えた変復調器
を介して行っているので通信処理装置の通信回線を多く
接続することができる効果がある。(Effects of the Invention) As described above, the present invention performs a polling control section before data transfer between a communication control device and a terminal device via a modem having a branching control section, a command control section, and a polling control section. This has the advantage that many communication lines for communication processing devices can be connected.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明のブロック図である。 １・・・通信制御装置、２・・・端末装置、１１・・・
分岐制御部、１２・・・変復調部、１３・・・コマンド
制御部、１４・・・ポーリング制御部、１０１・・・通
信回線。FIG. 1 is a block diagram of the present invention. 1... Communication control device, 2... Terminal device, 11...
Branch control unit, 12...Modulation/demodulation unit, 13...Command control unit, 14...Polling control unit, 101...Communication line.

Claims (1)

【特許請求の範囲】[Claims] 通信制御装置と端末装置との間の通信制御を行なう変復
調装置において、前記通信制御装置および前記端末装置
からの各種信号を受け、前記各種信号の種類に応じて切
換え出力する分岐制御部と、この分岐制御部からのコマ
ンド信号を受信し、コマンド制御するコマンド制御部と
、前記分岐制御部から送られてくる前記通信制御装置お
よび前記端末装置からの制御信号を受けてポーリング／
セレクタ制御を行なうポーリング制御部と、前記分岐制
御から送られてくる前記通信制御装置からの信号を変調
して前記端末装置に送出するとともに、前記端末装置か
らの信号を復調して前記通信制御装置に送出する変復調
器を備えて成ることを特徴とする変復調装置。A modulation/demodulation device that performs communication control between a communication control device and a terminal device includes: a branch control section that receives various signals from the communication control device and the terminal device, and switches and outputs the various signals depending on the type of the signals; a command control unit that receives a command signal from the branch control unit and performs command control; and a command control unit that receives a command signal from the branch control unit and performs polling/control in response to control signals from the communication control device and the terminal device.
a polling control unit that performs selector control; modulates a signal from the communication control device sent from the branch control and sends it to the terminal device; demodulates the signal from the terminal device; 1. A modulation and demodulation device comprising a modulation and demodulation device that transmits signals to the user.
JP63191206A 1988-07-29 1988-07-29 Modulator-demodulator Pending JPH0239751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63191206A JPH0239751A (en) 1988-07-29 1988-07-29 Modulator-demodulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63191206A JPH0239751A (en) 1988-07-29 1988-07-29 Modulator-demodulator

Publications (1)

Publication Number Publication Date
JPH0239751A true JPH0239751A (en) 1990-02-08

Family

ID=16270668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63191206A Pending JPH0239751A (en) 1988-07-29 1988-07-29 Modulator-demodulator

Country Status (1)

Country Link
JP (1) JPH0239751A (en)

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