NO931685L - CONNECTOR FOR TELEPHONE TERMINALS - Google Patents

CONNECTOR FOR TELEPHONE TERMINALS

Info

Publication number
NO931685L
NO931685L NO93931685A NO931685A NO931685L NO 931685 L NO931685 L NO 931685L NO 93931685 A NO93931685 A NO 93931685A NO 931685 A NO931685 A NO 931685A NO 931685 L NO931685 L NO 931685L
Authority
NO
Norway
Prior art keywords
wire
wire operation
wires
modem
telephone terminals
Prior art date
Application number
NO93931685A
Other languages
Norwegian (no)
Other versions
NO931685D0 (en
Inventor
Rolf Baumeister
Florian Jankowsky
Hans-Juergen Neuhaus
Original Assignee
Deutsche Telephonwerk Kabel
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 Deutsche Telephonwerk Kabel filed Critical Deutsche Telephonwerk Kabel
Publication of NO931685D0 publication Critical patent/NO931685D0/en
Publication of NO931685L publication Critical patent/NO931685L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

For valgfri tilkobling av telefonter- minaler, spesielt systemtelefoner til totråds- eller firetråds abonnentlinje-grensesnitt og med i hvert tilfelle full mottagelse av implementerte fasilitetstrekk, blir terminalen forsynt med to modemer. I firetrådsdrift blir et modem benyttet for likestromsdataoverfering på lavt nivå, i totrådsdrift et modem for en dataoverfcring med en bærefrekvens ovenfor talebåndet. Til kobling av tale- og signaleringstrådene blir det benyttet dioder og dynamisk hcyohmige drosler. I firetrådsdrift blir terminalen forsynt med strom over signaleringstrådene, i totrådsdrift over taletrådene fra telekommunikasjonsanlegget.For optional connection of telephone terminals, especially system telephones to two-wire or four-wire subscriber line interface and with in each case full reception of implemented feature features, the terminal is equipped with two modems. In four-wire operation, a modem is used for low-level direct current data transfer, in two-wire operation a modem for a data transfer with a carrier frequency above the voice band. To connect the speech and signaling wires, diodes and dynamically high-frequency chokes are used. In four-wire operation, the terminal is supplied with power over the signaling wires, in two-wire operation over the speech wires from the telecommunications system.

NO93931685A 1992-05-09 1993-05-07 CONNECTOR FOR TELEPHONE TERMINALS NO931685L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4215825A DE4215825C2 (en) 1992-05-09 1992-05-09 Circuit arrangement for telephone devices

Publications (2)

Publication Number Publication Date
NO931685D0 NO931685D0 (en) 1993-05-07
NO931685L true NO931685L (en) 1993-11-10

Family

ID=6458800

Family Applications (1)

Application Number Title Priority Date Filing Date
NO93931685A NO931685L (en) 1992-05-09 1993-05-07 CONNECTOR FOR TELEPHONE TERMINALS

Country Status (8)

Country Link
EP (1) EP0570622A1 (en)
CZ (1) CZ369092A3 (en)
DE (1) DE4215825C2 (en)
FI (1) FI932093A7 (en)
HU (1) HUT64165A (en)
NO (1) NO931685L (en)
PL (1) PL298846A1 (en)
SK (1) SK369092A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19833300A1 (en) * 1998-07-24 2000-01-27 Fmn Fernmeldetechnik Gmbh Nord Telecommunications terminal has control computer and encoder/decoder connected to digital, analogue interface units for connecting to digital, analogue telecommunications networks

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315899C2 (en) * 1983-05-02 1985-12-12 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Method for assigning connection data for telephone subscriber connections
DE3607684A1 (en) * 1986-03-08 1987-09-17 Telefonbau & Normalzeit Gmbh Telephone set, for example series telephone set
GB2204761B (en) * 1987-05-14 1991-04-17 Stc Plc Telephone system and terminal
DE3718742A1 (en) * 1987-06-04 1988-12-22 Rutenbeck Wilhelm Gmbh & Co Electric circuit arrangement for coupling telecommunications functional units to the telephone network
DE3923960A1 (en) * 1989-07-17 1991-01-31 Deutsche Telephonwerk Kabel COMPUTER-CONTROLLED TELECOMMUNICATION SYSTEM

Also Published As

Publication number Publication date
FI932093A7 (en) 1993-11-10
PL298846A1 (en) 1993-11-15
SK369092A3 (en) 1995-03-08
FI932093A0 (en) 1993-05-07
NO931685D0 (en) 1993-05-07
HUT64165A (en) 1993-11-29
DE4215825A1 (en) 1993-11-11
HU9300830D0 (en) 1993-06-28
CZ369092A3 (en) 1994-03-16
DE4215825C2 (en) 1995-11-23
EP0570622A1 (en) 1993-11-24

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