JPS58219861A - ２重化系切替方式 - Google Patents

２重化系切替方式

Info

Publication number
JPS58219861A
JPS58219861A JP10143182A JP10143182A JPS58219861A JP S58219861 A JPS58219861 A JP S58219861A JP 10143182 A JP10143182 A JP 10143182A JP 10143182 A JP10143182 A JP 10143182A JP S58219861 A JPS58219861 A JP S58219861A
Authority
JP
Japan
Prior art keywords
system switching
maintenance
msd
switching
switching 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
JP10143182A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0121658B2 (enExample
Inventor
Susumu Sugao
菅生　晉
Toshinori Tsuboi
利憲 坪井
Seishiro Oguchi
小口　征四郎
Shiro Enami
榎並　史朗
Kozo Murakami
孝三 村上
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
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric Co 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, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP10143182A priority Critical patent/JPS58219861A/ja
Publication of JPS58219861A publication Critical patent/JPS58219861A/ja
Publication of JPH0121658B2 publication Critical patent/JPH0121658B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
JP10143182A 1982-06-15 1982-06-15 ２重化系切替方式 Granted JPS58219861A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10143182A JPS58219861A (ja) 1982-06-15 1982-06-15 ２重化系切替方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10143182A JPS58219861A (ja) 1982-06-15 1982-06-15 ２重化系切替方式

Publications (2)

Publication Number Publication Date
JPS58219861A true JPS58219861A (ja) 1983-12-21
JPH0121658B2 JPH0121658B2 (enExample) 1989-04-21

Family

ID=14300504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10143182A Granted JPS58219861A (ja) 1982-06-15 1982-06-15 ２重化系切替方式

Country Status (1)

Country Link
JP (1) JPS58219861A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01151338A (ja) * 1987-12-08 1989-06-14 Nec Corp ディジタル回線終端制御装置の系切替方式

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01151338A (ja) * 1987-12-08 1989-06-14 Nec Corp ディジタル回線終端制御装置の系切替方式

Also Published As

Publication number Publication date
JPH0121658B2 (enExample) 1989-04-21

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