ZA849176B - A spare subscriber terminal device in a digital concentrator - Google Patents

A spare subscriber terminal device in a digital concentrator

Info

Publication number
ZA849176B
ZA849176B ZA849176A ZA849176A ZA849176B ZA 849176 B ZA849176 B ZA 849176B ZA 849176 A ZA849176 A ZA 849176A ZA 849176 A ZA849176 A ZA 849176A ZA 849176 B ZA849176 B ZA 849176B
Authority
ZA
South Africa
Prior art keywords
terminal device
subscriber terminal
digital concentrator
spare subscriber
spare
Prior art date
Application number
ZA849176A
Other languages
English (en)
Inventor
Yves Ollivier
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Publication of ZA849176B publication Critical patent/ZA849176B/xx

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
ZA849176A 1983-11-23 1984-11-23 A spare subscriber terminal device in a digital concentrator ZA849176B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8318645A FR2555388B1 (fr) 1983-11-23 1983-11-23 Dispositif de secours d'un terminal d'abonne dans un concentrateur numerique

Publications (1)

Publication Number Publication Date
ZA849176B true ZA849176B (en) 1985-07-31

Family

ID=9294430

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA849176A ZA849176B (en) 1983-11-23 1984-11-23 A spare subscriber terminal device in a digital concentrator

Country Status (10)

Country Link
US (1) US4594704A (sv)
EP (1) EP0143431B1 (sv)
JP (1) JPS60134541A (sv)
CA (1) CA1219980A (sv)
DE (1) DE3469664D1 (sv)
FI (1) FI77761C (sv)
FR (1) FR2555388B1 (sv)
IE (1) IE55834B1 (sv)
IN (1) IN160570B (sv)
ZA (1) ZA849176B (sv)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
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DE3715885A1 (de) * 1987-05-13 1988-11-24 Philips Patentverwaltung Vorfeldeinrichtung, insbesondere fuer ein b-isdn-vermittlungssystem
CA1341310C (en) * 1988-07-15 2001-10-23 Robert Filepp Interactive computer network and method of operation
GB2229063B (en) * 1989-03-09 1993-04-07 Plessey Telecomm Telecommunications exchange apparatus
US5790518A (en) * 1995-12-22 1998-08-04 Hughes Electronics Corporation 1-for-N redundancy implementation on midplane
US5719917A (en) * 1995-12-26 1998-02-17 Lucent Technologies Inc. Circuit for activating back-up lines
US7054935B2 (en) 1998-02-10 2006-05-30 Savvis Communications Corporation Internet content delivery network
US7949779B2 (en) 1998-02-10 2011-05-24 Level 3 Communications, Llc Controlling subscriber information rates in a content delivery network
US6185598B1 (en) 1998-02-10 2001-02-06 Digital Island, Inc. Optimized network resource location
US6259676B1 (en) 1998-06-17 2001-07-10 Nokia Telecommunications Oy Upgrading of subscriber connection
US6275470B1 (en) 1999-06-18 2001-08-14 Digital Island, Inc. On-demand overlay routing for computer-based communication networks
US8543901B1 (en) 1999-11-01 2013-09-24 Level 3 Communications, Llc Verification of content stored in a network
US7720959B2 (en) 2000-10-17 2010-05-18 Avaya Inc. Method and apparatus for characterizing the quality of a network path
US7336613B2 (en) * 2000-10-17 2008-02-26 Avaya Technology Corp. Method and apparatus for the assessment and optimization of network traffic
US7080161B2 (en) * 2000-10-17 2006-07-18 Avaya Technology Corp. Routing information exchange
ATE459154T1 (de) 2000-10-17 2010-03-15 Avaya Technology Corp Verfahren und vorrichtung zur optimierung der leistung und des kosten in einem internetzwerk
US7349994B2 (en) 2000-10-17 2008-03-25 Avaya Technology Corp. Method and apparatus for coordinating routing parameters via a back-channel communication medium
US8023421B2 (en) 2002-07-25 2011-09-20 Avaya Inc. Method and apparatus for the assessment and optimization of network traffic
US7363367B2 (en) * 2000-10-17 2008-04-22 Avaya Technology Corp. Systems and methods for robust, real-time measurement of network performance
US7487237B2 (en) * 2000-10-17 2009-02-03 Avaya Technology Corp. Load optimization
US7756032B2 (en) * 2000-10-17 2010-07-13 Avaya Inc. Method and apparatus for communicating data within measurement traffic
US7406539B2 (en) * 2000-10-17 2008-07-29 Avaya Technology Corp. Method and apparatus for performance and cost optimization in an internetwork
US7822871B2 (en) 2001-09-28 2010-10-26 Level 3 Communications, Llc Configurable adaptive global traffic control and management
US7860964B2 (en) 2001-09-28 2010-12-28 Level 3 Communications, Llc Policy-based content delivery network selection
US7373644B2 (en) 2001-10-02 2008-05-13 Level 3 Communications, Llc Automated server replication
US20030079027A1 (en) 2001-10-18 2003-04-24 Michael Slocombe Content request routing and load balancing for content distribution networks
US9167036B2 (en) 2002-02-14 2015-10-20 Level 3 Communications, Llc Managed object replication and delivery
US7457234B1 (en) 2003-05-14 2008-11-25 Adtran, Inc. System and method for protecting communication between a central office and a remote premises
CN100591082C (zh) * 2003-12-30 2010-02-17 上海贝尔阿尔卡特股份有限公司 模拟用户板
DE102005010690B4 (de) * 2005-03-09 2007-04-12 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Öleingespritzter Verdichter mit Temperaturschalter
CN102047244B (zh) 2008-04-04 2013-02-27 第三雷沃通讯有限责任公司 在内容分发网络(cdn)中处理长尾内容
US9762692B2 (en) 2008-04-04 2017-09-12 Level 3 Communications, Llc Handling long-tail content in a content delivery network (CDN)
US10924573B2 (en) 2008-04-04 2021-02-16 Level 3 Communications, Llc Handling long-tail content in a content delivery network (CDN)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938784B2 (ja) * 1979-02-28 1984-09-19 富士通株式会社 Ｎ＋１予備方式
FR2503500A1 (fr) * 1981-04-03 1982-10-08 Cit Alcatel Dispositif de secours de terminal d'abonne

Also Published As

Publication number Publication date
US4594704A (en) 1986-06-10
FI77761C (sv) 1989-04-10
JPS60134541A (ja) 1985-07-17
IN160570B (sv) 1987-07-18
IE842995L (en) 1985-05-23
IE55834B1 (en) 1991-01-30
DE3469664D1 (en) 1988-04-07
CA1219980A (fr) 1987-03-31
FI844574A0 (fi) 1984-11-21
FR2555388B1 (fr) 1986-02-21
FI77761B (fi) 1988-12-30
EP0143431A1 (fr) 1985-06-05
JPH0329336B2 (sv) 1991-04-23
FR2555388A1 (fr) 1985-05-24
FI844574L (fi) 1985-05-24
EP0143431B1 (fr) 1988-03-02

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