FR929425A - Line testing systems - Google Patents

Line testing systems

Info

Publication number
FR929425A
FR929425A FR929425DA FR929425A FR 929425 A FR929425 A FR 929425A FR 929425D A FR929425D A FR 929425DA FR 929425 A FR929425 A FR 929425A
Authority
FR
France
Prior art keywords
line testing
testing systems
systems
line
testing
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
Other languages
French (fr)
Inventor
Andre-Jean Henquet
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR929425A publication Critical patent/FR929425A/en
Expired 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)
FR929425D 1946-06-15 1946-06-15 Line testing systems Expired FR929425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR929425T 1946-06-15

Publications (1)

Publication Number Publication Date
FR929425A true FR929425A (en) 1947-12-26

Family

ID=9442449

Family Applications (1)

Application Number Title Priority Date Filing Date
FR929425D Expired FR929425A (en) 1946-06-15 1946-06-15 Line testing systems

Country Status (1)

Country Link
FR (1) FR929425A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374794A1 (en) * 1976-12-17 1978-07-13 Philips Nv SIGNALING SYSTEM FOR DEVICES TO PROTECT TELEPHONE LINES AGAINST OVERVOLTAGES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374794A1 (en) * 1976-12-17 1978-07-13 Philips Nv SIGNALING SYSTEM FOR DEVICES TO PROTECT TELEPHONE LINES AGAINST OVERVOLTAGES

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