JPS5235908A - Line concentration system - Google Patents

Line concentration system

Info

Publication number
JPS5235908A
JPS5235908A JP11183475A JP11183475A JPS5235908A JP S5235908 A JPS5235908 A JP S5235908A JP 11183475 A JP11183475 A JP 11183475A JP 11183475 A JP11183475 A JP 11183475A JP S5235908 A JPS5235908 A JP S5235908A
Authority
JP
Japan
Prior art keywords
line concentration
concentration system
concentrator
line concentrator
line
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
JP11183475A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5715520B2 (enExample
Inventor
Yoshiki Matake
Hidetoshi Kimura
Tadashi Tanaka
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP11183475A priority Critical patent/JPS5235908A/ja
Publication of JPS5235908A publication Critical patent/JPS5235908A/ja
Publication of JPS5715520B2 publication Critical patent/JPS5715520B2/ja
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP11183475A 1975-09-16 1975-09-16 Line concentration system Granted JPS5235908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11183475A JPS5235908A (en) 1975-09-16 1975-09-16 Line concentration system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11183475A JPS5235908A (en) 1975-09-16 1975-09-16 Line concentration system

Publications (2)

Publication Number Publication Date
JPS5235908A true JPS5235908A (en) 1977-03-18
JPS5715520B2 JPS5715520B2 (enExample) 1982-03-31

Family

ID=14571328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11183475A Granted JPS5235908A (en) 1975-09-16 1975-09-16 Line concentration system

Country Status (1)

Country Link
JP (1) JPS5235908A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02243009A (ja) * 1989-03-15 1990-09-27 Matsushita Electric Ind Co Ltd 圧電磁器共振子

Also Published As

Publication number Publication date
JPS5715520B2 (enExample) 1982-03-31

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