JPS5297610A - Subscriber line remote cut-off/test circuit - Google Patents

Subscriber line remote cut-off/test circuit

Info

Publication number
JPS5297610A
JPS5297610A JP1324776A JP1324776A JPS5297610A JP S5297610 A JPS5297610 A JP S5297610A JP 1324776 A JP1324776 A JP 1324776A JP 1324776 A JP1324776 A JP 1324776A JP S5297610 A JPS5297610 A JP S5297610A
Authority
JP
Japan
Prior art keywords
subscriber line
test circuit
line remote
remote cut
cut
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.)
Pending
Application number
JP1324776A
Other languages
Japanese (ja)
Inventor
Mikio Suo
Tatsuo Uchida
Yoshiro Iino
Atsushi Hariki
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.)
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry 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 Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP1324776A priority Critical patent/JPS5297610A/en
Publication of JPS5297610A publication Critical patent/JPS5297610A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/22Arrangements for supervision, monitoring or testing
    • H04M3/26Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30Automatic 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)

Abstract

PURPOSE:To prevent ineffective reservation of fault subscriber for a long time as well as to secure simple fault search by providing fault cut-off circuit.
JP1324776A 1976-02-12 1976-02-12 Subscriber line remote cut-off/test circuit Pending JPS5297610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1324776A JPS5297610A (en) 1976-02-12 1976-02-12 Subscriber line remote cut-off/test circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1324776A JPS5297610A (en) 1976-02-12 1976-02-12 Subscriber line remote cut-off/test circuit

Publications (1)

Publication Number Publication Date
JPS5297610A true JPS5297610A (en) 1977-08-16

Family

ID=11827865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1324776A Pending JPS5297610A (en) 1976-02-12 1976-02-12 Subscriber line remote cut-off/test circuit

Country Status (1)

Country Link
JP (1) JPS5297610A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49105408A (en) * 1973-01-12 1974-10-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49105408A (en) * 1973-01-12 1974-10-05

Similar Documents

Publication Publication Date Title
JPS5242158A (en) Device for measuring breaking time of relay
SE407711B (en) DEVICE FOR SHOT TRANSMISSION BY TANK
JPS5297610A (en) Subscriber line remote cut-off/test circuit
JPS5423456A (en) Oscillation circuit
JPS52136505A (en) Automatic fault restoration system for loop transmission system
JPS5276867A (en) Signal holding circuit
JPS5361207A (en) Resetting sytem for exclusive circuit
JPS5355905A (en) Automatic dialing system
JPS52126109A (en) Line signal watch circuit
JPS5332603A (en) Telephone set with timer
JPS5290206A (en) Shortened dial service system
JPS5224404A (en) Simple in-coming order response device
JPS51136218A (en) Timing monitoring circuit
JPS52123815A (en) N element merging-actuating circuit
JPS5222409A (en) Digit monitoring circuit for dials
JPS5315542A (en) Enclosed switchboard wiht buffer chamber
JPS5287636A (en) Testing method for carrier protection relay
JPS51137309A (en) Telephone charge communicating service system
JPS5324212A (en) Mul ti-frequency receiver
JPS5361206A (en) Resetting system for exclusive circuit
JPS5394109A (en) Preventing system for impulse relay distortion
JPS5335310A (en) Transmission line monitor system
JPS5397311A (en) Continuity test system for subscriber circuit
JPS5210503A (en) Shading coil device of cores
JPS5215206A (en) Detector circuit for key telephone