JPH0221707B2 - - Google Patents

Info

Publication number
JPH0221707B2
JPH0221707B2 JP19694881A JP19694881A JPH0221707B2 JP H0221707 B2 JPH0221707 B2 JP H0221707B2 JP 19694881 A JP19694881 A JP 19694881A JP 19694881 A JP19694881 A JP 19694881A JP H0221707 B2 JPH0221707 B2 JP H0221707B2
Authority
JP
Japan
Prior art keywords
test
trunk
line
backup
station
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
JP19694881A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5899051A (ja
Inventor
Naohiro Kimura
Yoshimasa Tokui
Shoichi Abe
Hironobu Yoshida
Hitoshi Katakura
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
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 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 JPS5899051A (ja) 1983-06-13
JPH0221707B2 true 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
JPS5899051A (ja) 1983-06-13

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