JPS57131145A - Transmission line switching device of transmission system - Google Patents

Transmission line switching device of transmission system

Info

Publication number
JPS57131145A
JPS57131145A JP56015684A JP1568481A JPS57131145A JP S57131145 A JPS57131145 A JP S57131145A JP 56015684 A JP56015684 A JP 56015684A JP 1568481 A JP1568481 A JP 1568481A JP S57131145 A JPS57131145 A JP S57131145A
Authority
JP
Japan
Prior art keywords
station
transmission line
socket
plug
loop transmission
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
JP56015684A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0258822B2 (enExample
Inventor
Hiroshi Tomizawa
Seiichi Yasumoto
Masakazu Okada
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56015684A priority Critical patent/JPS57131145A/ja
Publication of JPS57131145A publication Critical patent/JPS57131145A/ja
Publication of JPH0258822B2 publication Critical patent/JPH0258822B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
    • H04B1/745—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus using by-passing or self-healing methods

Landscapes

  • Small-Scale Networks (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
JP56015684A 1981-02-06 1981-02-06 Transmission line switching device of transmission system Granted JPS57131145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56015684A JPS57131145A (en) 1981-02-06 1981-02-06 Transmission line switching device of transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56015684A JPS57131145A (en) 1981-02-06 1981-02-06 Transmission line switching device of transmission system

Publications (2)

Publication Number Publication Date
JPS57131145A true JPS57131145A (en) 1982-08-13
JPH0258822B2 JPH0258822B2 (enExample) 1990-12-10

Family

ID=11895573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56015684A Granted JPS57131145A (en) 1981-02-06 1981-02-06 Transmission line switching device of transmission system

Country Status (1)

Country Link
JP (1) JPS57131145A (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6247256U (enExample) * 1985-09-10 1987-03-23
JPH0246042A (ja) * 1988-08-08 1990-02-15 Furukawa Electric Co Ltd:The 多重伝送システム
JPH0246041A (ja) * 1988-08-08 1990-02-15 Furukawa Electric Co Ltd:The 多重伝送システム
JPH0353637A (ja) * 1989-07-21 1991-03-07 Nec Corp 障害ラインバイパス装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5791055A (en) * 1980-11-27 1982-06-07 Toshiba Corp Branching device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5791055A (en) * 1980-11-27 1982-06-07 Toshiba Corp Branching device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6247256U (enExample) * 1985-09-10 1987-03-23
JPH0246042A (ja) * 1988-08-08 1990-02-15 Furukawa Electric Co Ltd:The 多重伝送システム
JPH0246041A (ja) * 1988-08-08 1990-02-15 Furukawa Electric Co Ltd:The 多重伝送システム
JPH0353637A (ja) * 1989-07-21 1991-03-07 Nec Corp 障害ラインバイパス装置

Also Published As

Publication number Publication date
JPH0258822B2 (enExample) 1990-12-10

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