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.)
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 LtdfiledCriticalFujitsu Ltd
Priority to JP17035780ApriorityCriticalpatent/JPS5793765A/ja
Publication of JPS5793765ApublicationCriticalpatent/JPS5793765A/ja
Publication of JPS6411184B2publicationCriticalpatent/JPS6411184B2/ja
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
H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Monitoring And Testing Of Exchanges
(AREA)
JP17035780A1980-12-031980-12-03Booster battery detecting system
GrantedJPS5793765A
(en)