JPS57185731A - Line switching circuit - Google Patents

Line switching circuit

Info

Publication number
JPS57185731A
JPS57185731A JP56070364A JP7036481A JPS57185731A JP S57185731 A JPS57185731 A JP S57185731A JP 56070364 A JP56070364 A JP 56070364A JP 7036481 A JP7036481 A JP 7036481A JP S57185731 A JPS57185731 A JP S57185731A
Authority
JP
Japan
Prior art keywords
timer
rom15
signal
line
switching
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
JP56070364A
Other languages
English (en)
Japanese (ja)
Other versions
JPS639691B2 (enExample
Inventor
Mitsuhiro Matsue
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56070364A priority Critical patent/JPS57185731A/ja
Publication of JPS57185731A publication Critical patent/JPS57185731A/ja
Publication of JPS639691B2 publication Critical patent/JPS639691B2/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)
  • Hardware Redundancy (AREA)
JP56070364A 1981-05-11 1981-05-11 Line switching circuit Granted JPS57185731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56070364A JPS57185731A (en) 1981-05-11 1981-05-11 Line switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56070364A JPS57185731A (en) 1981-05-11 1981-05-11 Line switching circuit

Publications (2)

Publication Number Publication Date
JPS57185731A true JPS57185731A (en) 1982-11-16
JPS639691B2 JPS639691B2 (enExample) 1988-03-01

Family

ID=13429299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56070364A Granted JPS57185731A (en) 1981-05-11 1981-05-11 Line switching circuit

Country Status (1)

Country Link
JP (1) JPS57185731A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119146A (ja) * 1983-11-30 1985-06-26 Fujitsu Ltd 回線切替制御方式
US5097467A (en) * 1988-07-18 1992-03-17 Fujitsu Limited Switching trigger detection circuit in line switching apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119146A (ja) * 1983-11-30 1985-06-26 Fujitsu Ltd 回線切替制御方式
US5097467A (en) * 1988-07-18 1992-03-17 Fujitsu Limited Switching trigger detection circuit in line switching apparatus

Also Published As

Publication number Publication date
JPS639691B2 (enExample) 1988-03-01

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