FR2356324A1 - Test equipment for telephone numbering unit - checks pulse train or frequency signals from dial or keyboard telephones and displays result - Google Patents

Test equipment for telephone numbering unit - checks pulse train or frequency signals from dial or keyboard telephones and displays result

Info

Publication number
FR2356324A1
FR2356324A1 FR7619373A FR7619373A FR2356324A1 FR 2356324 A1 FR2356324 A1 FR 2356324A1 FR 7619373 A FR7619373 A FR 7619373A FR 7619373 A FR7619373 A FR 7619373A FR 2356324 A1 FR2356324 A1 FR 2356324A1
Authority
FR
France
Prior art keywords
keyboard
pulse train
telephones
dial
test equipment
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
FR7619373A
Other languages
French (fr)
Other versions
FR2356324B1 (en
Inventor
Michel Duteil
Andre Mingaud
Eugene Randrianarana
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.)
Constr Telephoniques
Original Assignee
Constr Telephoniques
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 Constr Telephoniques filed Critical Constr Telephoniques
Priority to FR7619373A priority Critical patent/FR2356324A1/en
Publication of FR2356324A1 publication Critical patent/FR2356324A1/en
Application granted granted Critical
Publication of FR2356324B1 publication Critical patent/FR2356324B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/24—Arrangements for testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

The test equipment is used to check different types of numbering units for telephones. These units may have dial or keyboard numbering. A first set of elements is used to check the number of pulses. It can select the pulse train corresponding to a given digit. It can also select the pulse train corresponding to a given digit. It can also check the number of clock pulses. A second set of elements are used to check the frequencies produced by a keyboard numbering unit. It can identify the frequencies for each key and can decode the signals. It can also check clock pulses. A third set of elements checks the diodes switched by a keyboard unit.
FR7619373A 1976-06-25 1976-06-25 Test equipment for telephone numbering unit - checks pulse train or frequency signals from dial or keyboard telephones and displays result Granted FR2356324A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7619373A FR2356324A1 (en) 1976-06-25 1976-06-25 Test equipment for telephone numbering unit - checks pulse train or frequency signals from dial or keyboard telephones and displays result

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7619373A FR2356324A1 (en) 1976-06-25 1976-06-25 Test equipment for telephone numbering unit - checks pulse train or frequency signals from dial or keyboard telephones and displays result

Publications (2)

Publication Number Publication Date
FR2356324A1 true FR2356324A1 (en) 1978-01-20
FR2356324B1 FR2356324B1 (en) 1983-02-04

Family

ID=9174868

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7619373A Granted FR2356324A1 (en) 1976-06-25 1976-06-25 Test equipment for telephone numbering unit - checks pulse train or frequency signals from dial or keyboard telephones and displays result

Country Status (1)

Country Link
FR (1) FR2356324A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255623A (en) * 1979-06-15 1981-03-10 San Angelo Communications & Electronics, Inc. Apparatus for pulse train measurement
US4602134A (en) * 1983-03-29 1986-07-22 Sace, Incorporated Telephone tester

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2261971A1 (en) * 1971-12-17 1973-06-28 Stanley Electric Co Ltd TEST DEVICE FOR TELEPHONE SETS WITH PUSH BUTTON SELECTOR
FR2284234A1 (en) * 1974-08-01 1976-04-02 Dirin Vilnis DEVICE FOR MONITORING THE PULSE PARAMETERS OF CALL DIALS OF TELEPHONE DEVICES

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2261971A1 (en) * 1971-12-17 1973-06-28 Stanley Electric Co Ltd TEST DEVICE FOR TELEPHONE SETS WITH PUSH BUTTON SELECTOR
FR2284234A1 (en) * 1974-08-01 1976-04-02 Dirin Vilnis DEVICE FOR MONITORING THE PULSE PARAMETERS OF CALL DIALS OF TELEPHONE DEVICES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255623A (en) * 1979-06-15 1981-03-10 San Angelo Communications & Electronics, Inc. Apparatus for pulse train measurement
US4602134A (en) * 1983-03-29 1986-07-22 Sace, Incorporated Telephone tester

Also Published As

Publication number Publication date
FR2356324B1 (en) 1983-02-04

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Legal Events

Date Code Title Description
TP Transmission of property