SE7713305L - Telefonlinjeutrustning - Google Patents

Telefonlinjeutrustning

Info

Publication number
SE7713305L
SE7713305L SE7713305A SE7713305A SE7713305L SE 7713305 L SE7713305 L SE 7713305L SE 7713305 A SE7713305 A SE 7713305A SE 7713305 A SE7713305 A SE 7713305A SE 7713305 L SE7713305 L SE 7713305L
Authority
SE
Sweden
Prior art keywords
telephone line
telephone
circuit
line equipment
transformer
Prior art date
Application number
SE7713305A
Other languages
English (en)
Swedish (sv)
Other versions
SE421577B (sv
Inventor
J Picandet
A Baratin
Original Assignee
Jeumont Schneider
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 Jeumont Schneider filed Critical Jeumont Schneider
Publication of SE7713305L publication Critical patent/SE7713305L/
Publication of SE421577B publication Critical patent/SE421577B/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/005Interface circuits for subscriber lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
SE7713305A 1976-11-25 1977-11-24 Telefonlinjeutrustning SE421577B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7635606A FR2372554A1 (fr) 1976-11-25 1976-11-25 Equipement de ligne d'abonne pour central telephonique

Publications (2)

Publication Number Publication Date
SE7713305L true SE7713305L (sv) 1978-05-26
SE421577B SE421577B (sv) 1982-01-04

Family

ID=9180323

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7713305A SE421577B (sv) 1976-11-25 1977-11-24 Telefonlinjeutrustning

Country Status (21)

Country Link
US (1) US4133986A ( )
JP (1) JPS5368108A ( )
AT (1) AT364391B ( )
AU (1) AU508108B2 ( )
BE (1) BE861080A ( )
BR (1) BR7707753A ( )
CA (1) CA1074935A ( )
CH (1) CH619578A5 ( )
DD (1) DD134301A5 ( )
DE (1) DE2751444C3 ( )
ES (1) ES464223A1 ( )
FR (1) FR2372554A1 ( )
GB (1) GB1538017A ( )
HK (1) HK5980A ( )
IT (1) IT1090447B ( )
LU (1) LU78569A1 ( )
MX (1) MX143397A ( )
NL (1) NL185435C ( )
OA (1) OA05805A ( )
SE (1) SE421577B ( )
ZA (1) ZA777006B ( )

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7802421A (nl) * 1978-03-06 1979-09-10 Philips Nv Voedingsschakeling voor een abonneelijnstroom- loop.
FR2422300A1 (fr) * 1978-04-03 1979-11-02 Trt Telecom Radio Electr Joncteur comportant un amplificateur de puissance symetrique pour alimenter la ligne d'abonne
US4433215A (en) * 1979-02-26 1984-02-21 Tii Corporation Solid state hybrid circuits
US4387273A (en) * 1980-08-25 1983-06-07 International Telephone And Telegraph Corporation Subscriber line interface circuit with impedance synthesizer
DE3237652A1 (de) * 1982-10-11 1984-04-12 Siemens AG, 1000 Berlin und 8000 München Fernsprechanlage
US10720996B2 (en) * 2016-08-19 2020-07-21 Fujitsu Limited Frequency characteristic adjustment circuit, optical transmission module using the same, and optical transceiver

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT291356B (de) * 1969-05-09 1971-07-12 Itt Austria Schaltungsanordnung zur selbsttätigen Aufrechterhaltung der Symmetrie von Speiseschaltungen für Teilnehmerstellen in Fernmelde-Anlagen unter Verwendung von Transistoren
FR2305080A1 (fr) * 1975-03-20 1976-10-15 Jeumont Schneider Termineur electronique
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
DE2751444A1 (de) 1978-06-01
AU3075877A (en) 1979-05-24
DE2751444B2 (de) 1981-05-14
US4133986A (en) 1979-01-09
AT364391B (de) 1981-10-12
NL185435B (nl) 1989-11-01
SE421577B (sv) 1982-01-04
AU508108B2 (en) 1980-03-06
FR2372554B1 ( ) 1981-02-20
CH619578A5 ( ) 1980-09-30
BE861080A (fr) 1978-03-16
GB1538017A (en) 1979-01-10
CA1074935A (fr) 1980-04-01
OA05805A (fr) 1981-05-31
MX143397A (es) 1981-04-30
JPS5368108A (en) 1978-06-17
DE2751444C3 (de) 1982-02-18
HK5980A (en) 1980-02-29
IT1090447B (it) 1985-06-26
ZA777006B (en) 1978-09-27
NL185435C (nl) 1990-04-02
LU78569A1 ( ) 1978-04-20
FR2372554A1 (fr) 1978-06-23
ES464223A1 (es) 1978-07-01
DD134301A5 (de) 1979-02-14
NL7712719A (nl) 1978-05-29
BR7707753A (pt) 1978-08-01
ATA808677A (de) 1981-03-15

Similar Documents

Publication Publication Date Title
BR8000697A (pt) Circuito de alimentacao de linha de assinante,de corrente limitada
DK524682A (da) Apparat til angivelse af en roersenders optimale anode-belastningsimpedans
NO822247L (no) Abonnentlinjekrets.
JPS5278052A (en) Switching regulator
SE7713305L (sv) Telefonlinjeutrustning
SE7712127L (sv) Automatisk signalnivaregleringskrets for anvendning i telefonapparater
ES464741A1 (es) Equipo de linea de abonado para central telefonica.
IT7826722A0 (it) Apparecchiatura per il trasferimento di circuiti.
JPS51143832A (en) Inverter
JPS52139302A (en) Automatic circuit switching unit
JPS527699A (en) Alarm inspection device
BR7606474A (pt) Aperfeicoada rede com impedancia negativa estavel,de circuito aberto acoplado com transformador,para circuitos de transmissao de frequencia de voz de dois fios
JPS5422552A (en) Reference voltage source circuit
JPS5359851A (en) Constant current circuit
IT7920456A0 (it) Procedimento per stabilire collegamenti, con continuita' dimateriale, su piastre circuitali.
IT8021070A0 (it) Circuito conduttore dell'elettricita'.
JPS5295459A (en) Hanging up magnet control device
SE7704687L (sv) Stationshus, serskilt for elektriska transformator- och kopplingsanleggningar
JPS5319032A (en) Fixing system
JPS5316510A (en) Ac signal transmission system
JPS5340824A (en) Combining circuit
JPS52124147A (en) Automatic power source transferring circuit
FR2339944A1 (fr) Circuit de commutation d'electro-aimant
JPS5232553A (en) Xerox switching unit
BE856239A (fr) Circuit d'equipement de ligne d'abonne

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 7713305-6

Effective date: 19910611

Format of ref document f/p: F