ES2109887A1 - Data transmission protection circuit. - Google Patents

Data transmission protection circuit.

Info

Publication number
ES2109887A1
ES2109887A1 ES09502443A ES9502443A ES2109887A1 ES 2109887 A1 ES2109887 A1 ES 2109887A1 ES 09502443 A ES09502443 A ES 09502443A ES 9502443 A ES9502443 A ES 9502443A ES 2109887 A1 ES2109887 A1 ES 2109887A1
Authority
ES
Spain
Prior art keywords
data transmission
coils
protection circuit
transmission protection
output
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.)
Granted
Application number
ES09502443A
Other languages
Spanish (es)
Other versions
ES2109887B1 (en
Inventor
Vicente De Vera Pablo Garcia
Cervera Luis Miguel Campoy
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.)
Telefonica SA
Original Assignee
Telefonica de Espana SA
Telefonica Nacional de Espana SA
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 Telefonica de Espana SA, Telefonica Nacional de Espana SA filed Critical Telefonica de Espana SA
Priority to ES9502443A priority Critical patent/ES2109887B1/en
Priority to PE00090196A priority patent/PE34398A1/en
Priority to ARP960105641A priority patent/AR005052A1/en
Publication of ES2109887A1 publication Critical patent/ES2109887A1/en
Application granted granted Critical
Publication of ES2109887B1 publication Critical patent/ES2109887B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

Data transmission protection circuit. Consists of the coupled arrangement of two coils 1 and a resistance 2 in parallel to the output of the coils 1, producing a wetting current, with the primary and secondary windings of the coils made simultaneously in different layers, in such a way that the magnetic flux between windings remains balanced, being situated between the User Terminal Equipment and the control device or switchboard to which it belongs and having a printed circuit board, housed in a casing that has a female connection for the input and a cable with a male termination for the output.
ES9502443A 1995-12-12 1995-12-12 PROTECTION CIRCUIT FOR THE TRANSMISSION OF DATA. Expired - Lifetime ES2109887B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES9502443A ES2109887B1 (en) 1995-12-12 1995-12-12 PROTECTION CIRCUIT FOR THE TRANSMISSION OF DATA.
PE00090196A PE34398A1 (en) 1995-12-12 1996-12-12 PROTECTION CIRCUIT FOR DATA TRANSMISSION
ARP960105641A AR005052A1 (en) 1995-12-12 1996-12-12 PROTECTION CIRCUIT FOR THE TRANSMISSION OF DATA.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9502443A ES2109887B1 (en) 1995-12-12 1995-12-12 PROTECTION CIRCUIT FOR THE TRANSMISSION OF DATA.

Publications (2)

Publication Number Publication Date
ES2109887A1 true ES2109887A1 (en) 1998-01-16
ES2109887B1 ES2109887B1 (en) 1998-06-16

Family

ID=8292451

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9502443A Expired - Lifetime ES2109887B1 (en) 1995-12-12 1995-12-12 PROTECTION CIRCUIT FOR THE TRANSMISSION OF DATA.

Country Status (3)

Country Link
AR (1) AR005052A1 (en)
ES (1) ES2109887B1 (en)
PE (1) PE34398A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764922A (en) * 1985-08-21 1988-08-16 Siemens Aktiengesellschaft Data terminal interface circuit to a telephone transmission line
US4823383A (en) * 1986-11-17 1989-04-18 Telic Alcatel Protection device for terminal equipment on telephone subscriber premises
US4827461A (en) * 1987-09-17 1989-05-02 Dictaphone Corporation Universal telecommunications audio coupling device
ES2024312A6 (en) * 1990-09-17 1992-02-16 Telefonica De Espa Filter for medium-wave interference
WO1994010749A1 (en) * 1992-10-30 1994-05-11 Motorola Lighting Inc. Integrated emi/rfi filter magnetics

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764922A (en) * 1985-08-21 1988-08-16 Siemens Aktiengesellschaft Data terminal interface circuit to a telephone transmission line
US4823383A (en) * 1986-11-17 1989-04-18 Telic Alcatel Protection device for terminal equipment on telephone subscriber premises
US4827461A (en) * 1987-09-17 1989-05-02 Dictaphone Corporation Universal telecommunications audio coupling device
ES2024312A6 (en) * 1990-09-17 1992-02-16 Telefonica De Espa Filter for medium-wave interference
WO1994010749A1 (en) * 1992-10-30 1994-05-11 Motorola Lighting Inc. Integrated emi/rfi filter magnetics

Also Published As

Publication number Publication date
ES2109887B1 (en) 1998-06-16
AR005052A1 (en) 1999-04-07
PE34398A1 (en) 1998-07-20

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