AT357204B - INTERCOM OR INTERCOM - Google Patents

INTERCOM OR INTERCOM

Info

Publication number
AT357204B
AT357204B AT723576A AT723576A AT357204B AT 357204 B AT357204 B AT 357204B AT 723576 A AT723576 A AT 723576A AT 723576 A AT723576 A AT 723576A AT 357204 B AT357204 B AT 357204B
Authority
AT
Austria
Prior art keywords
intercom
Prior art date
Application number
AT723576A
Other languages
German (de)
Other versions
ATA723576A (en
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
Publication of ATA723576A publication Critical patent/ATA723576A/en
Application granted granted Critical
Publication of AT357204B publication Critical patent/AT357204B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
AT723576A 1975-10-10 1976-09-30 INTERCOM OR INTERCOM AT357204B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752545515 DE2545515C3 (en) 1975-10-10 1975-10-10 Intercom or intercom

Publications (2)

Publication Number Publication Date
ATA723576A ATA723576A (en) 1979-11-15
AT357204B true AT357204B (en) 1980-06-25

Family

ID=5958872

Family Applications (1)

Application Number Title Priority Date Filing Date
AT723576A AT357204B (en) 1975-10-10 1976-09-30 INTERCOM OR INTERCOM

Country Status (4)

Country Link
AT (1) AT357204B (en)
CH (1) CH607490A5 (en)
DE (1) DE2545515C3 (en)
NL (1) NL7611196A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1110111B (en) * 1979-01-12 1985-12-23 Acet Srl TWO-WIRE ELECTRIC DOOR ENTRY SYSTEM, SUSCEPTABLE TO USE A PRESSISTING DOOR BELL SYSTEM, WITHOUT THE NEED FOR ADDITIONAL POWER LINES
DE2946177C2 (en) * 1979-11-15 1988-08-18 S. Siedle & Söhne Telefon- und Telegrafenwerke GmbH, 7743 Furtwangen House system for the transmission of information
DE4334906C2 (en) * 1993-10-13 1997-05-07 Neumann Elektronik Gmbh Device for the transmission of call and occupancy status signals from two-way or intercom systems with line selection via a two-wire transmission line

Also Published As

Publication number Publication date
DE2545515C3 (en) 1980-08-07
DE2545515A1 (en) 1977-04-14
NL7611196A (en) 1977-04-13
CH607490A5 (en) 1978-12-29
ATA723576A (en) 1979-11-15
DE2545515B2 (en) 1979-11-08

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