JPS551734A - Connection system for telephone exchanger terminal - Google Patents

Connection system for telephone exchanger terminal

Info

Publication number
JPS551734A
JPS551734A JP7441178A JP7441178A JPS551734A JP S551734 A JPS551734 A JP S551734A JP 7441178 A JP7441178 A JP 7441178A JP 7441178 A JP7441178 A JP 7441178A JP S551734 A JPS551734 A JP S551734A
Authority
JP
Japan
Prior art keywords
telephone
line
automatic
exchanger
connection
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
JP7441178A
Other languages
Japanese (ja)
Inventor
Shigeru Tominaga
Kiyoshi Asano
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
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7441178A priority Critical patent/JPS551734A/en
Publication of JPS551734A publication Critical patent/JPS551734A/en
Pending 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)

Abstract

PURPOSE:To enable the automatic connection from the automatic telephone exchanger to telephone sets and data terminal units, by providing the additional unit providing the telephone set call out signal power supply and audible frequency signal generator between the subscriber telephone line and automatic telephone exchanger. CONSTITUTION:The automatic response type data terminal unit 7 having the audible frequency signal receiver R is provided in connection with the telephone set 6 connected to the subscriber telephone line 5, the telephone line 5 and the automatic exchanger 1 are connected and further, the additional unit 4 which selects the telephone connection line 2 and the data connection line 3 is provided. The additional unit 4 is provided with the telephone set call out signal power supply OSCA and the audible frequency signal generator OSCB, and further provided with the relay contacts closed when the audible frequency signal receiver R is operated, relay RA operated when call out signal is delivered from the exchanger 1 to the line 2, and relay RB operated when call out signal is delivered to the line 3, to perform the automatic connection from the exchanger 1 to the telephone set 6 and terminal unit 7 with selection.
JP7441178A 1978-06-19 1978-06-19 Connection system for telephone exchanger terminal Pending JPS551734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7441178A JPS551734A (en) 1978-06-19 1978-06-19 Connection system for telephone exchanger terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7441178A JPS551734A (en) 1978-06-19 1978-06-19 Connection system for telephone exchanger terminal

Publications (1)

Publication Number Publication Date
JPS551734A true JPS551734A (en) 1980-01-08

Family

ID=13546415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7441178A Pending JPS551734A (en) 1978-06-19 1978-06-19 Connection system for telephone exchanger terminal

Country Status (1)

Country Link
JP (1) JPS551734A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277745A (en) * 1985-09-30 1987-04-09 Toshiba Corp Voice/data intergrating and exchanging system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277745A (en) * 1985-09-30 1987-04-09 Toshiba Corp Voice/data intergrating and exchanging system

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