JPS54136107A - Digital telephone exchange system - Google Patents

Digital telephone exchange system

Info

Publication number
JPS54136107A
JPS54136107A JP4356878A JP4356878A JPS54136107A JP S54136107 A JPS54136107 A JP S54136107A JP 4356878 A JP4356878 A JP 4356878A JP 4356878 A JP4356878 A JP 4356878A JP S54136107 A JPS54136107 A JP S54136107A
Authority
JP
Japan
Prior art keywords
signals
digital
analog
exchange
conversion
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
JP4356878A
Other languages
Japanese (ja)
Inventor
Yoshinori Yoshida
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 JP4356878A priority Critical patent/JPS54136107A/en
Publication of JPS54136107A publication Critical patent/JPS54136107A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)

Abstract

PURPOSE:To ensure an integrated digital conversion by securing the branch insertion of the exchange digital signal into the output obtained through multiplication of the call signals and then showing the signals in the form of the integrated digital multiple signal regardless of the type of the analog or digital circuit. CONSTITUTION:The call signals are separated for both the analog and digital circuits, and the analog signals undergo A/D conversion CODEC. Then the both signals are given primary multiplication MUX and then transmitted to multiplying circuit MPX of digital network DSNW to be supplied to central control unit CP time-division channel TDSW. On the other hand, the exchange signals are separated for both the analog and digital circuits to be converted into the digital signals for exchange signals of the same type. And then the branch insertion of the exchange digital signsls is given to the output obtained through multiplication MPX of the call signals. Thus, the signals are shown in the form of the integrated digital signals regardless of the analog or digital circuit, ensuring an integrated digital conversion for the process of conversion signals.
JP4356878A 1978-04-13 1978-04-13 Digital telephone exchange system Pending JPS54136107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4356878A JPS54136107A (en) 1978-04-13 1978-04-13 Digital telephone exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4356878A JPS54136107A (en) 1978-04-13 1978-04-13 Digital telephone exchange system

Publications (1)

Publication Number Publication Date
JPS54136107A true JPS54136107A (en) 1979-10-23

Family

ID=12667340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4356878A Pending JPS54136107A (en) 1978-04-13 1978-04-13 Digital telephone exchange system

Country Status (1)

Country Link
JP (1) JPS54136107A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6116663A (en) * 1984-07-03 1986-01-24 Fujitsu Ltd Restart processing system of information gathering control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6116663A (en) * 1984-07-03 1986-01-24 Fujitsu Ltd Restart processing system of information gathering control system

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