ES2146187A1 - Protector de linea telefonica. - Google Patents

Protector de linea telefonica.

Info

Publication number
ES2146187A1
ES2146187A1 ES009802543A ES9802543A ES2146187A1 ES 2146187 A1 ES2146187 A1 ES 2146187A1 ES 009802543 A ES009802543 A ES 009802543A ES 9802543 A ES9802543 A ES 9802543A ES 2146187 A1 ES2146187 A1 ES 2146187A1
Authority
ES
Spain
Prior art keywords
telephone line
block
switching block
line protector
switching
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
ES009802543A
Other languages
English (en)
Other versions
ES2146187B1 (es
Inventor
Lopez Enrique Romero
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.)
DISSENY ELECTRONIC INTEGRAL S
Original Assignee
DISSENY ELECTRONIC INTEGRAL S
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 DISSENY ELECTRONIC INTEGRAL S filed Critical DISSENY ELECTRONIC INTEGRAL S
Priority to ES9802543A priority Critical patent/ES2146187B1/es
Publication of ES2146187A1 publication Critical patent/ES2146187A1/es
Application granted granted Critical
Publication of ES2146187B1 publication Critical patent/ES2146187B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Alarm Systems (AREA)

Abstract

Protector de línea telefónica. Comprende un protector de entrada (1) de una línea telefónica (2) y se caracteriza por el hecho de que comprende un primer bloque de conmutación (4) conectado a dicho protector de entrada (1); un bloque detector de llamada (5) conectado a dicho primer bloque de conmutación (4); un segundo bloque de conmutación (6) conectado a dicho primer bloque de conmutación (4) y a tierra (3); un bloque de detección (7) de los cambios de estado en la línea telefónica interior (8); un tercer bloque de conmutación (9) conectado a dicho segundo bloque de conmutación (6), al bloque de detección (7) de los cambios de estado en la línea telefónica interior (8) y a dicha línea telefónica interior; y una unidad central de procesos (10). **FIGURA**
ES9802543A 1998-12-04 1998-12-04 Protector de linea telefonica. Expired - Fee Related ES2146187B1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9802543A ES2146187B1 (es) 1998-12-04 1998-12-04 Protector de linea telefonica.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9802543A ES2146187B1 (es) 1998-12-04 1998-12-04 Protector de linea telefonica.

Publications (2)

Publication Number Publication Date
ES2146187A1 true ES2146187A1 (es) 2000-07-16
ES2146187B1 ES2146187B1 (es) 2001-03-01

Family

ID=8306014

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9802543A Expired - Fee Related ES2146187B1 (es) 1998-12-04 1998-12-04 Protector de linea telefonica.

Country Status (1)

Country Link
ES (1) ES2146187B1 (es)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1437874A (en) * 1974-07-31 1976-06-03 Post Office Opto-couplers
JPS60146597A (ja) * 1984-01-10 1985-08-02 Nippon Telegr & Teleph Corp <Ntt> 宅内制御装置の制御方式
US4720845A (en) * 1986-04-23 1988-01-19 Siemens Aktiengesellschaft Protective circuit for the overvoltage protection of a subscriber line interconnect circuit
EP0571109A2 (en) * 1992-05-18 1993-11-24 AT&T Corp. Overvoltage protection scheme for subscriber loops and method of performing same
EP0798910A1 (fr) * 1996-03-26 1997-10-01 STMicroelectronics S.A. Protection contre les surtensions d'une interface de lignes téléphoniques
US5696391A (en) * 1994-05-09 1997-12-09 Sgs-Thomson Microelectronics S.A. Overload protection circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1437874A (en) * 1974-07-31 1976-06-03 Post Office Opto-couplers
JPS60146597A (ja) * 1984-01-10 1985-08-02 Nippon Telegr & Teleph Corp <Ntt> 宅内制御装置の制御方式
US4720845A (en) * 1986-04-23 1988-01-19 Siemens Aktiengesellschaft Protective circuit for the overvoltage protection of a subscriber line interconnect circuit
EP0571109A2 (en) * 1992-05-18 1993-11-24 AT&T Corp. Overvoltage protection scheme for subscriber loops and method of performing same
US5696391A (en) * 1994-05-09 1997-12-09 Sgs-Thomson Microelectronics S.A. Overload protection circuit
EP0798910A1 (fr) * 1996-03-26 1997-10-01 STMicroelectronics S.A. Protection contre les surtensions d'une interface de lignes téléphoniques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, CD-ROM PAJ H04 Q R S (1976-1993) & JP 60146597 A (NTT CORP.) 02.08.1985 *

Also Published As

Publication number Publication date
ES2146187B1 (es) 2001-03-01

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