ES2046112B1 - TELEPHONE EQUIPMENT FOR DIRECT LINES POINT TO POINT. - Google Patents

TELEPHONE EQUIPMENT FOR DIRECT LINES POINT TO POINT.

Info

Publication number
ES2046112B1
ES2046112B1 ES9200868A ES9200868A ES2046112B1 ES 2046112 B1 ES2046112 B1 ES 2046112B1 ES 9200868 A ES9200868 A ES 9200868A ES 9200868 A ES9200868 A ES 9200868A ES 2046112 B1 ES2046112 B1 ES 2046112B1
Authority
ES
Spain
Prior art keywords
point
telephone equipment
direct lines
hanging
different
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 - Fee Related
Application number
ES9200868A
Other languages
Spanish (es)
Other versions
ES2046112R (en
ES2046112A2 (en
Inventor
Garcia Manuel Revenga
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.)
Revenga Ingenieros SA
Original Assignee
Revenga Ingenieros 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 Revenga Ingenieros SA filed Critical Revenga Ingenieros SA
Priority to ES9200868A priority Critical patent/ES2046112B1/en
Publication of ES2046112A2 publication Critical patent/ES2046112A2/en
Publication of ES2046112R publication Critical patent/ES2046112R/es
Application granted granted Critical
Publication of ES2046112B1 publication Critical patent/ES2046112B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Interface Circuits In Exchanges (AREA)
  • Alarm Systems (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

EQUIPO TELEFONICO PARA LINEAS DIRECTAS PUNTO A PUNTO. ESTE EQUIPO TELEFONICO PARA LINEAS DIRECTAS PUNTO A PUNTO, COMPRENDE LA INTERCONEXION DE DOS APARATOS GEMELOS, CONFIGURADOS COMO TERMINAL O COMO EMISOR Y MEDIANTE SUS CIRCUITOS FUNCIONALES, CUANDO ESTAN EN REPOSO SE INTERCAMBIAN SEÑALES PERMANENTES COMO TONO PORTADOR DIFERENCIADOS POR SU FRECUENCIA. COMPRENDIDAS ESTAS ENTRE 300 Y 3.400 HZ. AL DESCOLGAR CUALQUIERA DE ESTOS, SU FRECUENCIA DE SEÑALIZACION PASA A UNA SEGUNDA CONSIDERADA COMO LLAMADA DIFERENTE. UN EQUIPO DETECTA EL CAMBIO DE FRECUENCIA, EMITIENDO UN AVISO ACUSTICO Y AL DESCOLGARSE, SE MODIFICA Y SUPRIME EL ENVIO DE PORTADORAS. AL COLGAR AMBOS APARATOS, SE RESTABLECE LA SITUACION INICIAL Y SI DESAPARECE EL TONO DE CANAL LIBRE, DISPARA CASI DE FORMA INSTANTANEA LA ALARMA DURANTE LA SITUACION DE REPOSO DEL SISTEMA. EL COLGADO DE UNO SOLO DE LOS DOS TELEFONOS, DISPARA SENDAS SEÑALIZACIONES EN CADA APARATO, AUNQUE DIFERENTES ENTRE SI.TELEPHONE EQUIPMENT FOR DIRECT LINES POINT TO POINT. THIS TELEPHONE EQUIPMENT FOR DIRECT LINES POINT TO POINT, INCLUDES THE INTERCONNECTION OF TWO TWIN APPARATUSES, CONFIGURED AS A TERMINAL OR AS A TRANSMITTER AND THROUGH THEIR FUNCTIONAL CIRCUITS, WHEN THEY ARE PERMANENT SIGNALS INTERRUPTED BY A PORTIONAL TONER. INCLUDED THESE BETWEEN 300 AND 3,400 HZ. WHEN PICKING UP ANY OF THESE, YOUR SIGNALING FREQUENCY GOES TO A SECOND CONSIDERED AS A DIFFERENT CALL. A TEAM DETECTS THE CHANGE OF FREQUENCY, ISSUING AN ACOUSTIC NOTICE AND WHEN DOWNLOADING, THE SHIPPING OF CARRIERS IS MODIFIED AND SUPPRESSED. BY HANGING BOTH DEVICES, THE INITIAL SITUATION IS RESET AND IF THE FREE CHANNEL TONE DISAPPEARS, IT ALMOST INSTANTLY TRIGGERS THE ALARM DURING THE STANDBY SITUATION OF THE SYSTEM. HANGING ON ONE OF THE TWO PHONES ONLY, SHOOTING SIGNALS ON EACH DEVICE, EVEN IF DIFFERENT FROM ONE TO THE OTHER.

ES9200868A 1992-04-24 1992-04-24 TELEPHONE EQUIPMENT FOR DIRECT LINES POINT TO POINT. Expired - Fee Related ES2046112B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9200868A ES2046112B1 (en) 1992-04-24 1992-04-24 TELEPHONE EQUIPMENT FOR DIRECT LINES POINT TO POINT.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9200868A ES2046112B1 (en) 1992-04-24 1992-04-24 TELEPHONE EQUIPMENT FOR DIRECT LINES POINT TO POINT.

Publications (3)

Publication Number Publication Date
ES2046112A2 ES2046112A2 (en) 1994-01-16
ES2046112R ES2046112R (en) 1996-05-01
ES2046112B1 true ES2046112B1 (en) 1996-11-16

Family

ID=8276828

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9200868A Expired - Fee Related ES2046112B1 (en) 1992-04-24 1992-04-24 TELEPHONE EQUIPMENT FOR DIRECT LINES POINT TO POINT.

Country Status (1)

Country Link
ES (1) ES2046112B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431868A (en) * 1981-07-09 1984-02-14 International Telephone And Telegraph Corporation Solid state telephone line interface circuit with ringing capability
IN167984B (en) * 1986-09-23 1991-01-19 Siemens Ag

Also Published As

Publication number Publication date
ES2046112R (en) 1996-05-01
ES2046112A2 (en) 1994-01-16

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