UY23879A1 - Circuito de exploracion de puntos - Google Patents

Circuito de exploracion de puntos

Info

Publication number
UY23879A1
UY23879A1 UY23879A UY23879A UY23879A1 UY 23879 A1 UY23879 A1 UY 23879A1 UY 23879 A UY23879 A UY 23879A UY 23879 A UY23879 A UY 23879A UY 23879 A1 UY23879 A1 UY 23879A1
Authority
UY
Uruguay
Prior art keywords
scan circuit
point scan
resistors
attenuating network
point
Prior art date
Application number
UY23879A
Other languages
English (en)
Inventor
Melian Jesus Peña
Original Assignee
Telefonica Nacional Espana Co
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 Nacional Espana Co filed Critical Telefonica Nacional Espana Co
Publication of UY23879A1 publication Critical patent/UY23879A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/24—Arrangements for testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Networks Using Active Elements (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

El circuito de exploración de puntos consiste en disponer la entrada de un multiplexor (10) una fuente de corriente formada por un transistor (4) y dos resistencias (3) y (5), estando esta ultima asociada y actuando como elemento de limitación del valor de la corriente inversa, existiendo dispuesta un red atenuadora formada por dos resistencias (7) y (8), así como un condensador-filtro paso fijo asociado a la red atenuadora. (ver Fig. 1)
UY23879A 1993-12-31 1994-12-21 Circuito de exploracion de puntos UY23879A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES09302744A ES2096514B1 (es) 1993-12-31 1993-12-31 Circuito de exploracion de puntos.

Publications (1)

Publication Number Publication Date
UY23879A1 true UY23879A1 (es) 1995-01-13

Family

ID=8284099

Family Applications (1)

Application Number Title Priority Date Filing Date
UY23879A UY23879A1 (es) 1993-12-31 1994-12-21 Circuito de exploracion de puntos

Country Status (9)

Country Link
US (1) US5636262A (es)
EP (1) EP0666672A3 (es)
BR (1) BR9405458A (es)
CO (1) CO4290544A1 (es)
DZ (1) DZ1841A1 (es)
ES (1) ES2096514B1 (es)
MA (1) MA23410A1 (es)
PE (1) PE19695A1 (es)
UY (1) UY23879A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2080669B1 (es) * 1993-12-09 1996-07-16 Telefonica Nacional Espana Co Circuito hibrido para punto de actuacion y exploracion, aplicable en los registradores electronicos de centrales telefonicas electromecanicas.
US5809109A (en) * 1995-06-01 1998-09-15 Advanced Micro Devices, Inc. Integrated ring sensor with fault detection
KR20060072783A (ko) * 2004-12-23 2006-06-28 엘지전자 주식회사 플라즈마 표시장치
US8789524B2 (en) * 2008-01-22 2014-07-29 General Electric Company Pulse width modulated medical gas concentration control
JP5764911B2 (ja) * 2010-11-01 2015-08-19 ソニー株式会社 組電池及び電力消費機器

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022978A (en) * 1975-11-14 1977-05-10 Telesciences, Inc. Event monitoring transceiver
FR2396477A1 (fr) * 1977-06-30 1979-01-26 Telic Procede et dispositif de controle de connexions electriques notamment pour telecommunications
GB2056093B (en) * 1979-08-07 1983-04-27 Standard Telephones Cables Ltd Monitoring a number of voltage conditions
GB2056092B (en) * 1979-08-07 1983-04-27 Standard Telephones Cables Ltd Line signal monitor
DE2938982C2 (de) * 1979-09-26 1984-12-13 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung für eine eigenprüfbare Teilnehmeranschlußschaltung mit Erkennung des Schaltzustandes einer Teilnehmerleitung
JPS58181193A (ja) * 1982-04-16 1983-10-22 株式会社日立製作所 表示駆動装置
DE3223292C2 (de) * 1982-06-22 1986-11-27 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Feststellung des Schaltzustandes einer Teilnehmeranschlußleitung in Fernmeldeanlagen
JPS59160772A (ja) * 1984-02-21 1984-09-11 Matsushita Electric Ind Co Ltd 線路異常検出装置
JPS613073A (ja) * 1984-06-18 1986-01-09 Fuji Facom Corp アナログ計測システムにおける断線検出方式
AR240603A1 (es) * 1985-04-30 1990-05-31 Siemens Ag Disposicion de circuito de prueba de lineas de conexion de abonados de disposisiones de enlace telefonico, para determinar tensiones analogicas producidas en dichas lineas de conexion de abonado
US4697099A (en) * 1986-10-30 1987-09-29 International Business Machines Corporation Open line detector circuit
US4864598A (en) * 1988-07-20 1989-09-05 Keptel, Inc. Loop status verification system
US5062131A (en) * 1990-01-09 1991-10-29 Edward Kanare Telephone line monitoring circuit for providing a visual and auditory signal if the telephone line becomes inoperative
US5003573A (en) * 1990-04-12 1991-03-26 Rolm Systems Self-diagnosis of loop start and ground start trunk interfaces
US5515417A (en) * 1994-06-29 1996-05-07 Harris Corporation Ground key detector for a SLIC

Also Published As

Publication number Publication date
EP0666672A3 (en) 1999-03-17
DZ1841A1 (fr) 2002-02-17
ES2096514B1 (es) 1998-02-16
ES2096514A2 (es) 1997-03-01
MA23410A1 (fr) 1995-07-01
EP0666672A2 (en) 1995-08-09
CO4290544A1 (es) 1996-04-17
ES2096514R (es) 1997-06-01
PE19695A1 (es) 1995-07-17
US5636262A (en) 1997-06-03
BR9405458A (pt) 1995-09-19

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Legal Events

Date Code Title Description
ABAN Application deemed to be withdrawn (no publication fee paid)

Effective date: 20041223