DE9115769U1 - - Google Patents

Info

Publication number
DE9115769U1
DE9115769U1 DE9115769U DE9115769U DE9115769U1 DE 9115769 U1 DE9115769 U1 DE 9115769U1 DE 9115769 U DE9115769 U DE 9115769U DE 9115769 U DE9115769 U DE 9115769U DE 9115769 U1 DE9115769 U1 DE 9115769U1
Authority
DE
Germany
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 - Lifetime
Application number
DE9115769U
Other languages
German (de)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE9115769U priority Critical patent/DE9115769U1/de
Publication of DE9115769U1 publication Critical patent/DE9115769U1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges
    • H04M3/326—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges for registers and translators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
DE9115769U 1991-12-19 1991-12-19 Expired - Lifetime DE9115769U1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9115769U DE9115769U1 (fr) 1991-12-19 1991-12-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9115769U DE9115769U1 (fr) 1991-12-19 1991-12-19

Publications (1)

Publication Number Publication Date
DE9115769U1 true DE9115769U1 (fr) 1993-04-22

Family

ID=6874405

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9115769U Expired - Lifetime DE9115769U1 (fr) 1991-12-19 1991-12-19

Country Status (1)

Country Link
DE (1) DE9115769U1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165450A (en) * 1978-05-17 1979-08-21 Northern Telecom Inc. Telephone signalling test system
DE2844330A1 (de) * 1978-10-11 1980-04-30 Siemens Ag Verfahren zum anschliessen eines pruefteilnehmers an eine zentralgesteuerte fernsprechvermittlung
DE3108495A1 (de) * 1981-03-06 1982-10-07 hera Hermann Rapp Fabrik für Laboreinrichtungen, 7186 Blaufelden "pruefgeraet fuer fernsprechapparate und -leitungen"

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165450A (en) * 1978-05-17 1979-08-21 Northern Telecom Inc. Telephone signalling test system
DE2844330A1 (de) * 1978-10-11 1980-04-30 Siemens Ag Verfahren zum anschliessen eines pruefteilnehmers an eine zentralgesteuerte fernsprechvermittlung
DE3108495A1 (de) * 1981-03-06 1982-10-07 hera Hermann Rapp Fabrik für Laboreinrichtungen, 7186 Blaufelden "pruefgeraet fuer fernsprechapparate und -leitungen"

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