JPS5793765A - Booster battery detecting system - Google Patents

Booster battery detecting system

Info

Publication number
JPS5793765A
JPS5793765A JP17035780A JP17035780A JPS5793765A JP S5793765 A JPS5793765 A JP S5793765A JP 17035780 A JP17035780 A JP 17035780A JP 17035780 A JP17035780 A JP 17035780A JP S5793765 A JPS5793765 A JP S5793765A
Authority
JP
Japan
Prior art keywords
circuit
subscriber
booster
booster battery
tst
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
JP17035780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6411184B2 (enrdf_load_stackoverflow
Inventor
Yasuo Miyazaki
Kunio Yamamoto
Hideo Nakayama
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 Ltd filed Critical Fujitsu Ltd
Priority to JP17035780A priority Critical patent/JPS5793765A/ja
Publication of JPS5793765A publication Critical patent/JPS5793765A/ja
Publication of JPS6411184B2 publication Critical patent/JPS6411184B2/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
    • 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)
JP17035780A 1980-12-03 1980-12-03 Booster battery detecting system Granted JPS5793765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17035780A JPS5793765A (en) 1980-12-03 1980-12-03 Booster battery detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17035780A JPS5793765A (en) 1980-12-03 1980-12-03 Booster battery detecting system

Publications (2)

Publication Number Publication Date
JPS5793765A true JPS5793765A (en) 1982-06-10
JPS6411184B2 JPS6411184B2 (enrdf_load_stackoverflow) 1989-02-23

Family

ID=15903428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17035780A Granted JPS5793765A (en) 1980-12-03 1980-12-03 Booster battery detecting system

Country Status (1)

Country Link
JP (1) JPS5793765A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0392481U (enrdf_load_stackoverflow) * 1990-01-09 1991-09-20

Also Published As

Publication number Publication date
JPS6411184B2 (enrdf_load_stackoverflow) 1989-02-23

Similar Documents

Publication Publication Date Title
DE68926829D1 (de) Zweidraht-Sensorsystem mit Mitteln zur Selbstdiagnose
GB1494727A (en) Apparatus for supply and control of dc current
SE7712127L (sv) Automatisk signalnivaregleringskrets for anvendning i telefonapparater
JPS5793765A (en) Booster battery detecting system
KR840001978A (ko) 통신 회선용 검출회로
JPS56144184A (en) Ink detecting device
ES2026088A6 (es) Disposicion decircuito para reconocimiento de una correinte que pasa por una linea electrica.
JPS5625867A (en) Information terminal unit with automatic line disconnecting function
JPS5710531A (en) Level conversion circuit
JPS6469143A (en) Facsimile equipment
KR900013560A (ko) 칼라브라운관의 3극관 전류 자동측정 장치
DE69217279D1 (de) Teilnehmerschnittstellenschaltung mit einer Schleifenschlusserkennungsschaltung
JPS52115106A (en) Telephone state detection system
JPS6460224A (en) Excess current detection circuit for inverter device
JPS55162690A (en) Failure detection system in current switching type scanning circuit
JPS5738049A (en) Circuit for detecting off-hook of telephone set
JPS54107210A (en) Abnormity detection system for reading light source
SU1001134A1 (ru) Устройство дл многоточечной сигнализации
JPS56145362A (en) Discriminating device for level of signal
JPS6482391A (en) Prom writing device
JPS5699980A (en) Charging apparatus
SE8801048D0 (sv) An ancillary device for a telephone connected to a telephone line
JPS5758495A (en) Subscriber circuit device
JPS56161723A (en) Electronic switch
JPS5379565A (en) Interpnone circuit in data collecting circuit