CA1111586A - Circuit for electronic subscriber feed - Google Patents

Circuit for electronic subscriber feed

Info

Publication number
CA1111586A
CA1111586A CA292,254A CA292254A CA1111586A CA 1111586 A CA1111586 A CA 1111586A CA 292254 A CA292254 A CA 292254A CA 1111586 A CA1111586 A CA 1111586A
Authority
CA
Canada
Prior art keywords
input
differential amplifier
loop
branch
circuit arrangement
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.)
Expired
Application number
CA292,254A
Other languages
English (en)
French (fr)
Inventor
Hartmut Reusch
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.)
Deutsche Telephonwerke und Kabelindustrie AG
Original Assignee
Deutsche Telephonwerke und Kabelindustrie 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 Deutsche Telephonwerke und Kabelindustrie AG filed Critical Deutsche Telephonwerke und Kabelindustrie AG
Application granted granted Critical
Publication of CA1111586A publication Critical patent/CA1111586A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
CA292,254A 1976-12-02 1977-12-02 Circuit for electronic subscriber feed Expired CA1111586A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP2655005 1976-12-02
DE19762655005 DE2655005C3 (de) 1976-12-02 1976-12-02 Schaltungsanordnung für eine elektronische Teilnehmerspeisung

Publications (1)

Publication Number Publication Date
CA1111586A true CA1111586A (en) 1981-10-27

Family

ID=5994663

Family Applications (1)

Application Number Title Priority Date Filing Date
CA292,254A Expired CA1111586A (en) 1976-12-02 1977-12-02 Circuit for electronic subscriber feed

Country Status (13)

Country Link
AT (1) AT363523B (de)
BE (1) BE861297A (de)
CA (1) CA1111586A (de)
CH (1) CH630209A5 (de)
DE (1) DE2655005C3 (de)
DK (1) DK533777A (de)
FR (1) FR2373201A1 (de)
GB (1) GB1587868A (de)
IE (1) IE45750B1 (de)
IT (1) IT1088708B (de)
LU (1) LU78546A1 (de)
NL (1) NL7713305A (de)
SE (1) SE7713728L (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA784547B (en) * 1977-08-17 1979-08-29 Post Office Unbalanced/balanced converter circuits
NL7810086A (nl) * 1978-10-06 1980-04-09 Philips Nv Voedingsbrug voor een abonneestroomloop.
DE3014187C2 (de) * 1980-04-14 1983-11-17 Nixdorf Computer Ag, 4790 Paderborn Schaltungsanordnung zum zweidrähtigen Anschluß eines Fernsprechteilnehmers an je eine Leitung für angehende und ankommende Signale
DE3032970C2 (de) * 1980-09-02 1987-04-16 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Schaltungsanordnung zur Symmetrierung der Arbeitspunkte bei elektronisch gleichstromgespeisten Anschlußleitungen in Fernmelde-, insbesondere Fernsprechvermittlungsanlagen
DE3116783C2 (de) * 1981-04-28 1983-09-01 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung für eine Teilnehmeranschlußschaltung für Fernsprechanlagen
US4431868A (en) * 1981-07-09 1984-02-14 International Telephone And Telegraph Corporation Solid state telephone line interface circuit with ringing capability
DE3138726A1 (de) * 1981-09-29 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Teilnehmeranschlussschaltung fuer den anschluss zweidraehtiger teilnehmeranschlussleitungen an eine vierdraehtig durchschaltende digitale zeitmultiplexvermittlungsstelle.
DE3214624C2 (de) * 1982-04-20 1986-05-28 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Auswertung von Teilnehmerschleifenzuständen in Fernsprechanlagen, insbesondere in Fernsprechnebenstellenanlagen
BR8401869A (pt) * 1984-04-23 1985-11-26 Microlab Sa Repetidor de frequencia de voz
FR2564678B1 (fr) * 1984-05-18 1986-09-12 Thomson Csf Mat Tel Interface de liaison de circuit d'abonne pour autocommutateur telephonique
DE4306251C1 (de) * 1993-03-01 1994-06-01 Bosch Telecom Schaltungsanordnung für Teilnehmeranschlußleitungen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH586983A5 (de) * 1974-12-23 1977-04-15 Ibm
DE2556157C3 (de) * 1975-12-11 1979-01-18 Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin Schaltungsanordnung für eine elektronische Teilnehmerspeisung

Also Published As

Publication number Publication date
ATA860777A (de) 1981-01-15
AT363523B (de) 1981-08-10
NL7713305A (nl) 1978-06-06
DE2655005C3 (de) 1980-04-17
IT1088708B (it) 1985-06-10
IE45750L (en) 1978-06-02
LU78546A1 (de) 1978-04-13
IE45750B1 (en) 1982-11-17
BE861297A (fr) 1978-03-16
DE2655005A1 (de) 1978-06-15
DE2655005B2 (de) 1979-08-09
SE7713728L (sv) 1978-06-03
CH630209A5 (en) 1982-05-28
GB1587868A (en) 1981-04-08
FR2373201A1 (fr) 1978-06-30
DK533777A (da) 1978-06-03

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Legal Events

Date Code Title Description
MKEX Expiry