NL7613299A - Tweedraads naar vierdraads omzetter. - Google Patents

Tweedraads naar vierdraads omzetter.

Info

Publication number
NL7613299A
NL7613299A NL7613299A NL7613299A NL7613299A NL 7613299 A NL7613299 A NL 7613299A NL 7613299 A NL7613299 A NL 7613299A NL 7613299 A NL7613299 A NL 7613299A NL 7613299 A NL7613299 A NL 7613299A
Authority
NL
Netherlands
Prior art keywords
wire
converter
wire converter
Prior art date
Application number
NL7613299A
Other languages
English (en)
Dutch (nl)
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Publication of NL7613299A publication Critical patent/NL7613299A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/583—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using a bridge network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
NL7613299A 1975-12-01 1976-11-30 Tweedraads naar vierdraads omzetter. NL7613299A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB49303/75A GB1572595A (en) 1975-12-01 1975-12-01 Two-wire to four-wire converters

Publications (1)

Publication Number Publication Date
NL7613299A true NL7613299A (nl) 1977-06-03

Family

ID=10451889

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7613299A NL7613299A (nl) 1975-12-01 1976-11-30 Tweedraads naar vierdraads omzetter.

Country Status (5)

Country Link
JP (1) JPS5284907A (xx)
DE (1) DE2654495A1 (xx)
GB (1) GB1572595A (xx)
NL (1) NL7613299A (xx)
SE (1) SE7613470L (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833768C2 (de) * 1978-08-01 1982-07-01 Siemens AG, 1000 Berlin und 8000 München Verfahren zur spulen-, relaiskontakt- und transformatorfreien Rufstrom- und Schleifenstromeinspeisung
DE2833722C2 (de) * 1978-08-01 1982-06-03 Siemens AG, 1000 Berlin und 8000 München Verfahren zur spulen-, relaiskontakt- und transformatorfreien Rufstrom- und Schleifenstromeinspeisung
FR2437116A1 (fr) * 1978-09-19 1980-04-18 Thomson Ericsson Telephones So Dispositif de separation et d'equilibrage pour autocommutateurs telephoniques
JPS57104336A (en) * 1980-12-20 1982-06-29 Oki Electric Ind Co Ltd Hybrid circuit
CA1291836C (en) * 1987-06-17 1991-11-05 Kenji Takato Battery feed circuit
DE29802483U1 (de) * 1998-02-13 1999-04-01 Siemens AG, 80333 München Einrichtung zum Anschluß eines Teilnehmers an eine Busleitung
DE29802482U1 (de) * 1998-02-13 1999-04-01 Siemens AG, 80333 München Schaltung zur Bestimmung der Übertragungsrichtung einer Einrichtung zum Anschluß eines Teilnehmers an eine Busleitung
US6366976B1 (en) 1998-02-13 2002-04-02 Siemens Aktiengesellschaft Device for connecting a subscriber to a bus line

Also Published As

Publication number Publication date
DE2654495A1 (de) 1977-06-08
SE7613470L (sv) 1977-06-02
JPS5284907A (en) 1977-07-14
GB1572595A (en) 1980-07-30

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Legal Events

Date Code Title Description
BV The patent application has lapsed