JPS57193134A - Switching device for communication line - Google Patents

Switching device for communication line

Info

Publication number
JPS57193134A
JPS57193134A JP7822481A JP7822481A JPS57193134A JP S57193134 A JPS57193134 A JP S57193134A JP 7822481 A JP7822481 A JP 7822481A JP 7822481 A JP7822481 A JP 7822481A JP S57193134 A JPS57193134 A JP S57193134A
Authority
JP
Japan
Prior art keywords
line
current
capacitor
spare
communication
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
JP7822481A
Other languages
English (en)
Japanese (ja)
Other versions
JPS639692B2 (https=
Inventor
Kazuo Okamura
Koji Yoshii
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.)
IRIICHI TSUSHIN KOGYO KK
Original Assignee
IRIICHI TSUSHIN KOGYO KK
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 IRIICHI TSUSHIN KOGYO KK filed Critical IRIICHI TSUSHIN KOGYO KK
Priority to JP7822481A priority Critical patent/JPS57193134A/ja
Publication of JPS57193134A publication Critical patent/JPS57193134A/ja
Publication of JPS639692B2 publication Critical patent/JPS639692B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP7822481A 1981-05-23 1981-05-23 Switching device for communication line Granted JPS57193134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7822481A JPS57193134A (en) 1981-05-23 1981-05-23 Switching device for communication line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7822481A JPS57193134A (en) 1981-05-23 1981-05-23 Switching device for communication line

Publications (2)

Publication Number Publication Date
JPS57193134A true JPS57193134A (en) 1982-11-27
JPS639692B2 JPS639692B2 (https=) 1988-03-01

Family

ID=13656074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7822481A Granted JPS57193134A (en) 1981-05-23 1981-05-23 Switching device for communication line

Country Status (1)

Country Link
JP (1) JPS57193134A (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6935720B2 (ja) 2017-10-12 2021-09-15 ダイキン工業株式会社 冷凍装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414117U (https=) * 1977-06-30 1979-01-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414117U (https=) * 1977-06-30 1979-01-30

Also Published As

Publication number Publication date
JPS639692B2 (https=) 1988-03-01

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