SE9301090L - Anordning för provning av linjeanslutningar vid telefonväxel - Google Patents
Anordning för provning av linjeanslutningar vid telefonväxelInfo
- Publication number
- SE9301090L SE9301090L SE9301090A SE9301090A SE9301090L SE 9301090 L SE9301090 L SE 9301090L SE 9301090 A SE9301090 A SE 9301090A SE 9301090 A SE9301090 A SE 9301090A SE 9301090 L SE9301090 L SE 9301090L
- Authority
- SE
- Sweden
- Prior art keywords
- line connections
- telephone exchange
- bit sequence
- line
- testing
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
- H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
- H04L1/243—Testing correct operation by comparing a transmitted test signal with a locally generated replica at the transmitter, using a loop-back
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
- H04L1/241—Testing correct operation using pseudo-errors
-
- 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
- H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
- H04M3/303—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using PCM multiplexers, e.g. pair gain systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
- Interface Circuits In Exchanges (AREA)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9301090A SE501021C2 (sv) | 1993-04-01 | 1993-04-01 | Anordning för provning av linjeanslutningar vid telefonväxel |
NO941106A NO308687B1 (no) | 1993-04-01 | 1994-03-25 | Anordning for testing av linjeforbindelser ved en digital telefonsentral |
EP94850053A EP0618714B1 (en) | 1993-04-01 | 1994-03-30 | A device for testing subscriber lines in a digital switch |
DK94850053T DK0618714T3 (da) | 1993-04-01 | 1994-03-30 | Indretning til test af abonnentlinier i en digital omskifter |
DE69417084T DE69417084T2 (de) | 1993-04-01 | 1994-03-30 | Anordnung zur Prüfung der Teilnehmeranschlussleitungen einer digitalen Vermittlungseinrichtung |
AT94850053T ATE177891T1 (de) | 1993-04-01 | 1994-03-30 | Anordnung zur prüfung der teilnehmeranschlussleitungen einer digitalen vermittlungseinrichtung |
ES94850053T ES2130388T3 (es) | 1993-04-01 | 1994-03-30 | Un dispositivo para probar lineas de abonados en un conmutador digital. |
AU59238/94A AU683867B2 (en) | 1993-04-01 | 1994-03-31 | Testing of subscriber lines in a digital switch |
FI941516A FI941516A (sv) | 1993-04-01 | 1994-03-31 | Testning av abonnentanslutningar i en digital växel |
US08/221,232 US5446781A (en) | 1993-04-01 | 1994-03-31 | Testing of subscriber lines in a digital switch |
GR990401593T GR3030518T3 (en) | 1993-04-01 | 1999-06-16 | A device for testing subscriber lines in a digital switch. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9301090A SE501021C2 (sv) | 1993-04-01 | 1993-04-01 | Anordning för provning av linjeanslutningar vid telefonväxel |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9301090D0 SE9301090D0 (sv) | 1993-04-01 |
SE9301090L true SE9301090L (sv) | 1994-10-02 |
SE501021C2 SE501021C2 (sv) | 1994-10-24 |
Family
ID=20389439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9301090A SE501021C2 (sv) | 1993-04-01 | 1993-04-01 | Anordning för provning av linjeanslutningar vid telefonväxel |
Country Status (11)
Country | Link |
---|---|
US (1) | US5446781A (sv) |
EP (1) | EP0618714B1 (sv) |
AT (1) | ATE177891T1 (sv) |
AU (1) | AU683867B2 (sv) |
DE (1) | DE69417084T2 (sv) |
DK (1) | DK0618714T3 (sv) |
ES (1) | ES2130388T3 (sv) |
FI (1) | FI941516A (sv) |
GR (1) | GR3030518T3 (sv) |
NO (1) | NO308687B1 (sv) |
SE (1) | SE501021C2 (sv) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9406212D0 (en) * | 1994-03-29 | 1994-05-18 | Plessey Telecomm | Telecommunication customer interface |
FR2726725B1 (fr) * | 1994-11-09 | 1996-12-20 | Alcatel Mobile Comm France | Dispositif de test de terminaux de telecommunications, notamment de radiocommunications mobiles, et terminal de telecommunications apte a etre teste au moyen d'un tel dispositif |
US5784406A (en) * | 1995-06-29 | 1998-07-21 | Qualcom Incorporated | Method and apparatus for objectively characterizing communications link quality |
FR2762744B1 (fr) * | 1997-04-25 | 1999-07-30 | France Telecom | Procede de verification d'une ligne d'abonne connectee a un reseau numerique, et installation pour la mise en oeuvre de ce procede |
US6128369A (en) * | 1997-05-14 | 2000-10-03 | A.T.&T. Corp. | Employing customer premises equipment in communications network maintenance |
US5966427A (en) * | 1997-09-30 | 1999-10-12 | Siemens Information | Apparatus and method for troubleshooting internet protocol telephony networks |
CN1070329C (zh) * | 1998-03-11 | 2001-08-29 | 广东省电信科学技术研究院 | 市话用户线报障集中自动测试的方法 |
DE19859835A1 (de) * | 1998-12-23 | 2000-06-29 | Alcatel Sa | Anwendungsspezifische Halbleiterschaltung (ASIC) für den Einsatz in Übertragungseinrichtungen eines digitalen Netzwerks |
GB2345405A (en) * | 1998-12-30 | 2000-07-05 | Mitel Corp | Measuring the bit error rate of TDM telecommunications channels |
DE10023891B4 (de) * | 2000-05-17 | 2012-03-08 | Deutsche Telekom Ag | System und Verfahren zum Prüfen eines digitalen Teilnehmeranschlusses |
SG87150A1 (en) * | 2000-08-07 | 2002-03-19 | Pt Inputronik Utama | Telephone line status monitor |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1540900A (en) * | 1975-06-30 | 1979-02-21 | Ericsson L M Pty Ltd | Digital testing and power control in a digital communication system |
US4207433A (en) * | 1978-09-25 | 1980-06-10 | International Telephone And Telegraph Corporation | Test arrangement for communication paths in time-division multiplexed switching systems |
GB2101751B (en) * | 1981-07-07 | 1985-01-03 | Standard Telephones Cables Ltd | Line circuit testing. |
US4660194A (en) * | 1984-04-05 | 1987-04-21 | New York Telephone Company | Method and apparatus for testing a subscriber's line circuit in a packet switched multiplexed data/voice communication system |
GB2158326B (en) * | 1984-04-26 | 1987-08-26 | Standard Telephones Cables Ltd | Testing arrangements of a digital switching systems |
JPS60251751A (ja) * | 1984-05-29 | 1985-12-12 | Fujitsu Ltd | デイジタル加入者線試験方式 |
US4688209A (en) * | 1984-11-27 | 1987-08-18 | American Telephone And Telegraph Company, At&T Bell Laboratories | Method and apparatus for looping around a digital transmission line at a channel unit |
JPS61264852A (ja) * | 1985-05-20 | 1986-11-22 | Fujitsu Ltd | ディジタル加入者線試験方式 |
US4943993A (en) * | 1988-02-17 | 1990-07-24 | Fore Don C | Cable pair tester |
JPH0388445A (ja) * | 1989-08-30 | 1991-04-12 | Fujitsu Ltd | ループバックの試験起動方式 |
DE58907906D1 (de) * | 1989-09-26 | 1994-07-21 | Siemens Ag | Verfahren zur Messung der Bitfehlerrate bei der Übertragung von digitalen Informationen. |
EP0471216B1 (de) * | 1990-08-14 | 1995-03-29 | Siemens Aktiengesellschaft | Verfahren zur Leitungsanschlussprüfung vor einer Umschaltung von einer ausser Betrieb zu nehmenden Fernsprechvermittlungsstelle auf eine neu in Betrieb zu nehmende digitale Fernsprechvermittlungsstelle |
-
1993
- 1993-04-01 SE SE9301090A patent/SE501021C2/sv not_active IP Right Cessation
-
1994
- 1994-03-25 NO NO941106A patent/NO308687B1/no unknown
- 1994-03-30 DE DE69417084T patent/DE69417084T2/de not_active Expired - Lifetime
- 1994-03-30 EP EP94850053A patent/EP0618714B1/en not_active Expired - Lifetime
- 1994-03-30 DK DK94850053T patent/DK0618714T3/da active
- 1994-03-30 AT AT94850053T patent/ATE177891T1/de active
- 1994-03-30 ES ES94850053T patent/ES2130388T3/es not_active Expired - Lifetime
- 1994-03-31 FI FI941516A patent/FI941516A/sv unknown
- 1994-03-31 AU AU59238/94A patent/AU683867B2/en not_active Expired
- 1994-03-31 US US08/221,232 patent/US5446781A/en not_active Expired - Lifetime
-
1999
- 1999-06-16 GR GR990401593T patent/GR3030518T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
NO941106D0 (no) | 1994-03-25 |
DE69417084T2 (de) | 1999-09-30 |
EP0618714A1 (en) | 1994-10-05 |
NO941106L (no) | 1994-10-03 |
GR3030518T3 (en) | 1999-10-29 |
SE501021C2 (sv) | 1994-10-24 |
ES2130388T3 (es) | 1999-07-01 |
FI941516A0 (sv) | 1994-03-31 |
AU5923894A (en) | 1994-10-06 |
US5446781A (en) | 1995-08-29 |
AU683867B2 (en) | 1997-11-27 |
EP0618714B1 (en) | 1999-03-17 |
NO308687B1 (no) | 2000-10-09 |
DK0618714T3 (da) | 1999-10-11 |
DE69417084D1 (de) | 1999-04-22 |
ATE177891T1 (de) | 1999-04-15 |
FI941516A (sv) | 1994-10-02 |
SE9301090D0 (sv) | 1993-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |