IT8323890A0 - Disposizione per prove su una singola linea. - Google Patents
Disposizione per prove su una singola linea.Info
- Publication number
- IT8323890A0 IT8323890A0 IT8323890A IT2389083A IT8323890A0 IT 8323890 A0 IT8323890 A0 IT 8323890A0 IT 8323890 A IT8323890 A IT 8323890A IT 2389083 A IT2389083 A IT 2389083A IT 8323890 A0 IT8323890 A0 IT 8323890A0
- Authority
- IT
- Italy
- Prior art keywords
- tests
- arrangement
- single line
- line
- Prior art date
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
- 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)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/445,802 US4453049A (en) | 1982-12-01 | 1982-12-01 | Arrangement for single line testing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8323890A0 true IT8323890A0 (it) | 1983-11-25 |
| IT1194483B IT1194483B (it) | 1988-09-22 |
Family
ID=23770249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT23890/83A IT1194483B (it) | 1982-12-01 | 1983-11-25 | Disposizione per prove su una singola linea |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4453049A (it) |
| JP (1) | JPS59111451A (it) |
| BE (1) | BE898338A (it) |
| CA (1) | CA1211190A (it) |
| IT (1) | IT1194483B (it) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4558188A (en) * | 1983-12-21 | 1985-12-10 | Stuparits Jeffrey J | Arrangement for line jumper testing |
| US4653043A (en) * | 1985-07-01 | 1987-03-24 | At&T Bell Laboratories | Pre-cutover verification of switching system subscriber lines served via digital carrier facilities |
| US4937851A (en) * | 1988-07-20 | 1990-06-26 | Keptel, Inc. | Loop status verification system |
| US4864598A (en) * | 1988-07-20 | 1989-09-05 | Keptel, Inc. | Loop status verification system |
| US5187733A (en) * | 1991-12-20 | 1993-02-16 | At&T Bell Laboratories | Verification of subscriber lines prior to cutover to a new switching system |
| US5357556A (en) * | 1992-08-10 | 1994-10-18 | Pacific Bell | System and method for telephone network testing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3752940A (en) * | 1972-07-10 | 1973-08-14 | Porta Systems Corp | Line verification tester |
| US3892928A (en) * | 1973-10-09 | 1975-07-01 | Bell Telephone Labor Inc | Switching system equipped with line verification apparatus |
-
1982
- 1982-12-01 US US06/445,802 patent/US4453049A/en not_active Expired - Fee Related
-
1983
- 1983-11-15 CA CA000441188A patent/CA1211190A/en not_active Expired
- 1983-11-25 IT IT23890/83A patent/IT1194483B/it active
- 1983-11-30 JP JP58224598A patent/JPS59111451A/ja active Pending
- 1983-11-30 BE BE2/60275A patent/BE898338A/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA1211190A (en) | 1986-09-09 |
| JPS59111451A (ja) | 1984-06-27 |
| BE898338A (fr) | 1984-03-16 |
| US4453049A (en) | 1984-06-05 |
| IT1194483B (it) | 1988-09-22 |
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