NZ216434A - Transponder tests telephone subscriber line; powered from line via split transformer winding - Google Patents

Transponder tests telephone subscriber line; powered from line via split transformer winding

Info

Publication number
NZ216434A
NZ216434A NZ21643486A NZ21643486A NZ216434A NZ 216434 A NZ216434 A NZ 216434A NZ 21643486 A NZ21643486 A NZ 21643486A NZ 21643486 A NZ21643486 A NZ 21643486A NZ 216434 A NZ216434 A NZ 216434A
Authority
NZ
New Zealand
Prior art keywords
transponder
powered
tests
transformer winding
line
Prior art date
Application number
NZ21643486A
Inventor
B S E Mills
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of NZ216434A publication Critical patent/NZ216434A/en

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
    • H04M3/301—Circuit arrangements at the subscriber's side of the line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
NZ21643486A 1985-06-20 1986-06-06 Transponder tests telephone subscriber line; powered from line via split transformer winding NZ216434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8515598A GB2176970B (en) 1985-06-20 1985-06-20 Testing telephone lines

Publications (1)

Publication Number Publication Date
NZ216434A true NZ216434A (en) 1989-10-27

Family

ID=10581032

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ21643486A NZ216434A (en) 1985-06-20 1986-06-06 Transponder tests telephone subscriber line; powered from line via split transformer winding

Country Status (3)

Country Link
AU (1) AU5855886A (en)
GB (1) GB2176970B (en)
NZ (1) NZ216434A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643200A1 (en) * 1989-02-13 1990-08-17 Cosse Guy Process for remote testing of a datacom subscriber line and corresponding installation
GB2242101B (en) * 1990-03-15 1994-08-31 Mars Inc Telephone signalling
US6560461B1 (en) 1997-08-04 2003-05-06 Mundi Fomukong Authorized location reporting paging system
SE9800249L (en) 1998-01-29 1999-07-30 Telia Ab Improvements to, or with regard to, telecommunications

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843848A (en) * 1973-01-12 1974-10-22 Magnetic Controls Co Telephone looptest system
EP0091267B1 (en) * 1982-04-05 1988-01-07 THE GENERAL ELECTRIC COMPANY, p.l.c. Telecommunication system loop-back unit

Also Published As

Publication number Publication date
AU5855886A (en) 1986-12-24
GB2176970A (en) 1987-01-07
GB8515598D0 (en) 1985-07-24
GB2176970B (en) 1989-07-19

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