ES550850A1 - Un sistema de interconexion o de acoplamiento que conecta un circuito de linea principal. - Google Patents
Un sistema de interconexion o de acoplamiento que conecta un circuito de linea principal.Info
- Publication number
- ES550850A1 ES550850A1 ES550850A ES550850A ES550850A1 ES 550850 A1 ES550850 A1 ES 550850A1 ES 550850 A ES550850 A ES 550850A ES 550850 A ES550850 A ES 550850A ES 550850 A1 ES550850 A1 ES 550850A1
- Authority
- ES
- Spain
- Prior art keywords
- relay
- trunk interface
- signalling
- loop current
- single detector
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/0096—Trunk circuits
Abstract
Un sistema de interconexión o acoplamiento que tiene un solo detector para detectar la señalización que llega, incluyendo llamada, puesta a tierra de hilo de punta o hilo a corriente de bucle de sentido directo y corriente de bucle de sentido inverso. Se utilizan relés y control de polarización para efectuar la señalización de salida y para configurar el sistema para detectar con un solo detector los diversos estados de la señalización que llega.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/691,999 US4689816A (en) | 1985-01-15 | 1985-01-15 | Three relay C. O. trunk interface |
Publications (1)
Publication Number | Publication Date |
---|---|
ES550850A1 true ES550850A1 (es) | 1987-11-16 |
Family
ID=24778868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES550850A Expired ES550850A1 (es) | 1985-01-15 | 1986-01-14 | Un sistema de interconexion o de acoplamiento que conecta un circuito de linea principal. |
Country Status (12)
Country | Link |
---|---|
US (1) | US4689816A (es) |
EP (1) | EP0209540A1 (es) |
JP (1) | JPS61169095A (es) |
KR (1) | KR870700193A (es) |
CN (1) | CN86100092A (es) |
AU (1) | AU5305486A (es) |
BR (1) | BR8507163A (es) |
CA (1) | CA1249086A (es) |
ES (1) | ES550850A1 (es) |
IL (1) | IL77557A (es) |
WO (1) | WO1986004472A1 (es) |
ZA (1) | ZA859641B (es) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3545574A1 (de) * | 1985-12-21 | 1987-07-02 | Philips Patentverwaltung | Verfahren und schaltungsanordnung zur auswertung der ausgangssignale von stromflussdetektoren in fernmeldeanlagen |
ATE79710T1 (de) * | 1986-04-23 | 1992-09-15 | Siemens Ag | Schaltungsanordnung fuer den anschluss von anschlussleitungen eines digitalen zeitmultiplex- fernsprechnetzes. |
DE3804216A1 (de) * | 1988-02-11 | 1989-08-24 | Telefonbau & Normalzeit Gmbh | Schaltungsanordnung fuer eine externleitungsuebertragung von kommunikations-vermittlungsanlagen, insbesondere fernsprechnebenstellenanlagen |
US5544241A (en) * | 1995-06-27 | 1996-08-06 | Andrew S. Dibner | Telephone ring detector |
US6707887B2 (en) * | 2001-03-16 | 2004-03-16 | Siemens Information And Communication Networks, Inc. | System and method for automatic detection of loop start and ground start trunks |
US20090052838A1 (en) * | 2004-03-22 | 2009-02-26 | Mcdowall Ian | Electrically controlled optical elements and method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL57011A (en) * | 1979-04-05 | 1982-05-31 | Tadiran Israel Elect Ind Ltd | Multi purpose current detector for pabx |
US4310725A (en) * | 1980-01-17 | 1982-01-12 | Solid State Systems, Inc. | Interface for private branch exchange |
US4361732A (en) * | 1981-02-09 | 1982-11-30 | Northern Telecom Limited | Trunk interface circuit with current compensation |
US4431868A (en) * | 1981-07-09 | 1984-02-14 | International Telephone And Telegraph Corporation | Solid state telephone line interface circuit with ringing capability |
US4398064A (en) * | 1981-12-28 | 1983-08-09 | Gte Automatic Electric Labs Inc. | Call-for-service and continuity sensor circuit |
FR2527404B1 (fr) * | 1982-05-19 | 1987-10-23 | Cit Alcatel | Joncteur d'abonne electronique |
US4535201A (en) * | 1984-04-16 | 1985-08-13 | Northern Telecom Limited | Ground start detection in telephone loop signalling circuit |
-
1985
- 1985-01-15 US US06/691,999 patent/US4689816A/en not_active Expired - Lifetime
- 1985-11-14 JP JP60256488A patent/JPS61169095A/ja active Pending
- 1985-12-02 AU AU53054/86A patent/AU5305486A/en not_active Abandoned
- 1985-12-02 EP EP86900415A patent/EP0209540A1/en not_active Withdrawn
- 1985-12-02 WO PCT/US1985/002376 patent/WO1986004472A1/en not_active Application Discontinuation
- 1985-12-02 BR BR8507163A patent/BR8507163A/pt unknown
- 1985-12-02 KR KR1019860700637A patent/KR870700193A/ko not_active Application Discontinuation
- 1985-12-18 ZA ZA859641A patent/ZA859641B/xx unknown
-
1986
- 1986-01-09 CA CA000499256A patent/CA1249086A/en not_active Expired
- 1986-01-10 IL IL77557A patent/IL77557A/xx unknown
- 1986-01-14 CN CN198686100092A patent/CN86100092A/zh active Pending
- 1986-01-14 ES ES550850A patent/ES550850A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS61169095A (ja) | 1986-07-30 |
US4689816A (en) | 1987-08-25 |
CN86100092A (zh) | 1986-09-24 |
KR870700193A (ko) | 1987-03-14 |
ZA859641B (en) | 1986-08-27 |
IL77557A (en) | 1990-11-05 |
WO1986004472A1 (en) | 1986-07-31 |
CA1249086A (en) | 1989-01-17 |
AU5305486A (en) | 1986-08-13 |
EP0209540A1 (en) | 1987-01-28 |
BR8507163A (pt) | 1987-07-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19881116 |