JPH0121658B2 - - Google Patents

Info

Publication number
JPH0121658B2
JPH0121658B2 JP10143182A JP10143182A JPH0121658B2 JP H0121658 B2 JPH0121658 B2 JP H0121658B2 JP 10143182 A JP10143182 A JP 10143182A JP 10143182 A JP10143182 A JP 10143182A JP H0121658 B2 JPH0121658 B2 JP H0121658B2
Authority
JP
Japan
Prior art keywords
switching
msd
signal distribution
distribution device
maintenance
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.)
Expired
Application number
JP10143182A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58219861A (ja
Inventor
Susumu Sugao
Toshinori Tsuboi
Seishiro Oguchi
Shiro Enami
Kozo Murakami
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
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, 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 JPS58219861A (ja) 1983-12-21
JPH0121658B2 true JPH0121658B2 (enrdf_load_stackoverflow) 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 (enrdf_load_stackoverflow)

Families Citing this family (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
JPS58219861A (ja) 1983-12-21

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