JPS5899051A - バツクアツプ方式 - Google Patents

バツクアツプ方式

Info

Publication number
JPS5899051A
JPS5899051A JP19694881A JP19694881A JPS5899051A JP S5899051 A JPS5899051 A JP S5899051A JP 19694881 A JP19694881 A JP 19694881A JP 19694881 A JP19694881 A JP 19694881A JP S5899051 A JPS5899051 A JP S5899051A
Authority
JP
Japan
Prior art keywords
test
trunk
line
station
backup
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
JP19694881A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0221707B2 (OSRAM
Inventor
Naohiro Kimura
直弘 木村
Yoshimasa Tokui
得井　慶昌
Shoichi Abe
正一 阿部
Hironobu Yoshida
吉田　弘信
Hitoshi Katakura
片倉　斉
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
Oki Electric Industry Co Ltd
NTT Inc
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 JP19694881A priority Critical patent/JPS5899051A/ja
Publication of JPS5899051A publication Critical patent/JPS5899051A/ja
Publication of JPH0221707B2 publication Critical patent/JPH0221707B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
JP19694881A 1981-12-09 1981-12-09 バツクアツプ方式 Granted JPS5899051A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19694881A JPS5899051A (ja) 1981-12-09 1981-12-09 バツクアツプ方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19694881A JPS5899051A (ja) 1981-12-09 1981-12-09 バツクアツプ方式

Publications (2)

Publication Number Publication Date
JPS5899051A true JPS5899051A (ja) 1983-06-13
JPH0221707B2 JPH0221707B2 (OSRAM) 1990-05-15

Family

ID=16366316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19694881A Granted JPS5899051A (ja) 1981-12-09 1981-12-09 バツクアツプ方式

Country Status (1)

Country Link
JP (1) JPS5899051A (OSRAM)

Also Published As

Publication number Publication date
JPH0221707B2 (OSRAM) 1990-05-15

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