JPS55134568A - Data collector - Google Patents

Data collector

Info

Publication number
JPS55134568A
JPS55134568A JP4159679A JP4159679A JPS55134568A JP S55134568 A JPS55134568 A JP S55134568A JP 4159679 A JP4159679 A JP 4159679A JP 4159679 A JP4159679 A JP 4159679A JP S55134568 A JPS55134568 A JP S55134568A
Authority
JP
Japan
Prior art keywords
telephone
terminal
output appears
subscriber
data
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.)
Granted
Application number
JP4159679A
Other languages
Japanese (ja)
Other versions
JPS6251018B2 (en
Inventor
Toshiharu Takatsuki
Yukio Ito
Fukue Ogawa
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.)
Toshiba Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Toshiba Corp
Nippon Telegraph and Telephone Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Nippon Telegraph and Telephone Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4159679A priority Critical patent/JPS55134568A/en
Publication of JPS55134568A publication Critical patent/JPS55134568A/en
Publication of JPS6251018B2 publication Critical patent/JPS6251018B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE:To obtain a data collector which can be connected to an exchange side without special remodeling while giving priority to a telephone at any time, by providing the method of discriminating an in-use telephone from an unused telephone by being connected to a subscriber's telephone circuit. CONSTITUTION:Data collector 4, connected to subscriber's telephone circuit 3, is installed between exchange 5, and data terminal 1 and telephone set 2. In data collection, a signal is supplied to control terminal CONT to put relay C into operation. While the telephone is unused, no output appears at output terminals S1-S3 of photocouplers PC1-PC3. At this time, relay B is put into operation to collect data from a MODEM terminal. Once a telephone subscriber sends a signal, relay E of terminal 1 operates to disconnect internal circuit 1a. Then, a loop current flows to PC1 of collector 4 and an output appears at terminal S1. Once the party subscriber makes an answer, a current flows to PC2 and an output appears at terminal S2. At the time of an incoming call, a call signal of 16Hz flows to PC3 and an output appears at terminal S3. When an output appears at one of terminals S1-S3, relays B and C are undriven and the telephone is given priority.
JP4159679A 1979-04-06 1979-04-06 Data collector Granted JPS55134568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4159679A JPS55134568A (en) 1979-04-06 1979-04-06 Data collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4159679A JPS55134568A (en) 1979-04-06 1979-04-06 Data collector

Publications (2)

Publication Number Publication Date
JPS55134568A true JPS55134568A (en) 1980-10-20
JPS6251018B2 JPS6251018B2 (en) 1987-10-28

Family

ID=12612775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4159679A Granted JPS55134568A (en) 1979-04-06 1979-04-06 Data collector

Country Status (1)

Country Link
JP (1) JPS55134568A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194660A (en) * 1981-05-26 1982-11-30 Hitachi Ltd Telephone circuit switching device
JPS58219863A (en) * 1982-06-14 1983-12-21 Ricoh Co Ltd Detecting device of calling signal
JPS58219695A (en) * 1982-06-15 1983-12-21 日通工株式会社 Automatic announcing apparatus
JPS58225767A (en) * 1982-06-24 1983-12-27 Nec Corp Facsimile communication system
JPS5948169U (en) * 1982-09-21 1984-03-30 株式会社大興電機製作所 Busy detection circuit
JPS5963564U (en) * 1982-10-20 1984-04-26 株式会社大興電機製作所 Collision prevention circuit of automatic notification device
JPS5983450A (en) * 1982-11-05 1984-05-14 Ricoh Co Ltd Network controller
JPS6058761A (en) * 1983-09-09 1985-04-04 Taiko Denki Seisakusho:Kk Network controller
JPS6086962A (en) * 1983-10-18 1985-05-16 Sanyo Electric Co Ltd Automatic outgoing circuit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194660A (en) * 1981-05-26 1982-11-30 Hitachi Ltd Telephone circuit switching device
JPS58219863A (en) * 1982-06-14 1983-12-21 Ricoh Co Ltd Detecting device of calling signal
JPS58219695A (en) * 1982-06-15 1983-12-21 日通工株式会社 Automatic announcing apparatus
JPS58225767A (en) * 1982-06-24 1983-12-27 Nec Corp Facsimile communication system
JPS5948169U (en) * 1982-09-21 1984-03-30 株式会社大興電機製作所 Busy detection circuit
JPS5963564U (en) * 1982-10-20 1984-04-26 株式会社大興電機製作所 Collision prevention circuit of automatic notification device
JPS5983450A (en) * 1982-11-05 1984-05-14 Ricoh Co Ltd Network controller
JPS6058761A (en) * 1983-09-09 1985-04-04 Taiko Denki Seisakusho:Kk Network controller
JPH0446028B2 (en) * 1983-09-09 1992-07-28 Taiko Electric Works Ltd
JPS6086962A (en) * 1983-10-18 1985-05-16 Sanyo Electric Co Ltd Automatic outgoing circuit

Also Published As

Publication number Publication date
JPS6251018B2 (en) 1987-10-28

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