JPS526014A - Line switching system - Google Patents

Line switching system

Info

Publication number
JPS526014A
JPS526014A JP8180475A JP8180475A JPS526014A JP S526014 A JPS526014 A JP S526014A JP 8180475 A JP8180475 A JP 8180475A JP 8180475 A JP8180475 A JP 8180475A JP S526014 A JPS526014 A JP S526014A
Authority
JP
Japan
Prior art keywords
line
switching system
line switching
return
signal
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
JP8180475A
Other languages
English (en)
Japanese (ja)
Other versions
JPS566746B2 (enrdf_load_stackoverflow
Inventor
Koichiro Ishida
Sadao Mizokawa
Hajime Yasuda
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 JP8180475A priority Critical patent/JPS526014A/ja
Publication of JPS526014A publication Critical patent/JPS526014A/ja
Publication of JPS566746B2 publication Critical patent/JPS566746B2/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

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP8180475A 1975-07-04 1975-07-04 Line switching system Granted JPS526014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8180475A JPS526014A (en) 1975-07-04 1975-07-04 Line switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8180475A JPS526014A (en) 1975-07-04 1975-07-04 Line switching system

Publications (2)

Publication Number Publication Date
JPS526014A true JPS526014A (en) 1977-01-18
JPS566746B2 JPS566746B2 (enrdf_load_stackoverflow) 1981-02-13

Family

ID=13756666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8180475A Granted JPS526014A (en) 1975-07-04 1975-07-04 Line switching system

Country Status (1)

Country Link
JP (1) JPS526014A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5646348A (en) * 1979-09-21 1981-04-27 Hitachi Ltd Loop transmission system
JPH01503347A (ja) * 1987-03-23 1989-11-09 アンプ　インコーポレーテッド 通信装置およびそれに使用する媒体アダプタ

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3027391U (ja) * 1996-01-30 1996-08-09 佳子 浜野 ティッシュ入れ付き生理用ナプキン入れ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4866307A (enrdf_load_stackoverflow) * 1971-12-14 1973-09-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4866307A (enrdf_load_stackoverflow) * 1971-12-14 1973-09-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5646348A (en) * 1979-09-21 1981-04-27 Hitachi Ltd Loop transmission system
JPH01503347A (ja) * 1987-03-23 1989-11-09 アンプ　インコーポレーテッド 通信装置およびそれに使用する媒体アダプタ

Also Published As

Publication number Publication date
JPS566746B2 (enrdf_load_stackoverflow) 1981-02-13

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