JPS55117397A - Digital channel system for remote station - Google Patents

Digital channel system for remote station

Info

Publication number
JPS55117397A
JPS55117397A JP2473479A JP2473479A JPS55117397A JP S55117397 A JPS55117397 A JP S55117397A JP 2473479 A JP2473479 A JP 2473479A JP 2473479 A JP2473479 A JP 2473479A JP S55117397 A JPS55117397 A JP S55117397A
Authority
JP
Japan
Prior art keywords
signal
circuit
remote
digitized
secure
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
JP2473479A
Other languages
English (en)
Inventor
Tadashi Hirota
Akiyasu Suzuki
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 JP2473479A priority Critical patent/JPS55117397A/ja
Publication of JPS55117397A publication Critical patent/JPS55117397A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/60—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to satellites or concentrators which connect one or more exchange lines with a group of local lines
    • H04Q3/605—Arrangements in the satellite or concentrator
    • 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

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP2473479A 1979-03-02 1979-03-02 Digital channel system for remote station Pending JPS55117397A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2473479A JPS55117397A (en) 1979-03-02 1979-03-02 Digital channel system for remote station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2473479A JPS55117397A (en) 1979-03-02 1979-03-02 Digital channel system for remote station

Publications (1)

Publication Number Publication Date
JPS55117397A true JPS55117397A (en) 1980-09-09

Family

ID=12146367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2473479A Pending JPS55117397A (en) 1979-03-02 1979-03-02 Digital channel system for remote station

Country Status (1)

Country Link
JP (1) JPS55117397A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5775095A (en) * 1980-10-29 1982-05-11 Hitachi Ltd Time division sine concentration system
JPS57211893A (en) * 1981-06-23 1982-12-25 Hitachi Ltd Analog interface circuit
JPS61295800A (ja) * 1985-06-24 1986-12-26 Nec Corp 遠隔局制御方式

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5775095A (en) * 1980-10-29 1982-05-11 Hitachi Ltd Time division sine concentration system
JPS57211893A (en) * 1981-06-23 1982-12-25 Hitachi Ltd Analog interface circuit
JPS61295800A (ja) * 1985-06-24 1986-12-26 Nec Corp 遠隔局制御方式

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