FR2252714A1 - Test equipment for simplex or duplex telephone installation - uses loudspeakers and recorded test signals to determine line performance - Google Patents

Test equipment for simplex or duplex telephone installation - uses loudspeakers and recorded test signals to determine line performance

Info

Publication number
FR2252714A1
FR2252714A1 FR7436480A FR7436480A FR2252714A1 FR 2252714 A1 FR2252714 A1 FR 2252714A1 FR 7436480 A FR7436480 A FR 7436480A FR 7436480 A FR7436480 A FR 7436480A FR 2252714 A1 FR2252714 A1 FR 2252714A1
Authority
FR
France
Prior art keywords
test
recorded
simplex
signals
line performance
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
FR7436480A
Other languages
French (fr)
Other versions
FR2252714B3 (en
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.)
INDUSTRONIC IND ELECT GmbH
Original Assignee
INDUSTRONIC IND ELECT GmbH
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 INDUSTRONIC IND ELECT GmbH filed Critical INDUSTRONIC IND ELECT GmbH
Publication of FR2252714A1 publication Critical patent/FR2252714A1/en
Application granted granted Critical
Publication of FR2252714B3 publication Critical patent/FR2252714B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties
    • 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

Abstract

A magnetic tape recorder with a pre-recorded tape of sutable speech test signals is used to test telephone networks between a central exchange and remote telephone sets. The recorder is located in the exchange and may be connected to any line by a command signal. This allows a telephone link test to be conducted by a single person including tests for distortion. Precautions are taken against unauthorized use and against accidental erasure of the recorded signals. An alternative version of the equipment allows the test unit to be transported and connected by plug and socket so that it may be used either at the central exchange or at a remote set.
FR7436480A 1973-11-22 1974-10-31 Test equipment for simplex or duplex telephone installation - uses loudspeakers and recorded test signals to determine line performance Granted FR2252714A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732358143 DE2358143B2 (en) 1973-11-22 1973-11-22 Device for checking loudspeaker systems

Publications (2)

Publication Number Publication Date
FR2252714A1 true FR2252714A1 (en) 1975-06-20
FR2252714B3 FR2252714B3 (en) 1976-12-10

Family

ID=5898729

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7436480A Granted FR2252714A1 (en) 1973-11-22 1974-10-31 Test equipment for simplex or duplex telephone installation - uses loudspeakers and recorded test signals to determine line performance

Country Status (4)

Country Link
AT (1) AT331880B (en)
BE (1) BE822203A (en)
DE (1) DE2358143B2 (en)
FR (1) FR2252714A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741000C2 (en) * 1977-09-12 1982-04-15 Industronic, Industrie-Electronic Gmbh & Co Kg, 6980 Wertheim Line-bound transmission system for speech communication and information processing

Also Published As

Publication number Publication date
ATA843074A (en) 1975-12-15
DE2358143A1 (en) 1975-06-05
AT331880B (en) 1976-08-25
DE2358143B2 (en) 1975-10-16
FR2252714B3 (en) 1976-12-10
BE822203A (en) 1975-03-03

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