ATA355880A - Leitungseinheit zur schnittstellenverbindung einer analogleitung mit einer digitalen fernverbindungsanlage - Google Patents

Leitungseinheit zur schnittstellenverbindung einer analogleitung mit einer digitalen fernverbindungsanlage

Info

Publication number
ATA355880A
ATA355880A AT803558A AT355880A ATA355880A AT A355880 A ATA355880 A AT A355880A AT 803558 A AT803558 A AT 803558A AT 355880 A AT355880 A AT 355880A AT A355880 A ATA355880 A AT A355880A
Authority
AT
Austria
Prior art keywords
line
digital remote
connection system
analog
connection
Prior art date
Application number
AT803558A
Other languages
English (en)
Other versions
AT389605B (de
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of ATA355880A publication Critical patent/ATA355880A/de
Application granted granted Critical
Publication of AT389605B publication Critical patent/AT389605B/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Analogue/Digital Conversion (AREA)
AT0355880A 1979-07-27 1980-07-08 Leitungseinheit zur schnittstellenverbindung einer analogleitung mit einer digitalen fernverbindungsanlage AT389605B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA332,660A CA1123102A (en) 1979-07-27 1979-07-27 Line interface unit for voice and wide band signal coupling

Publications (2)

Publication Number Publication Date
ATA355880A true ATA355880A (de) 1989-05-15
AT389605B AT389605B (de) 1990-01-10

Family

ID=4114803

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0355880A AT389605B (de) 1979-07-27 1980-07-08 Leitungseinheit zur schnittstellenverbindung einer analogleitung mit einer digitalen fernverbindungsanlage

Country Status (8)

Country Link
US (1) US4232293A (de)
JP (1) JPS5621438A (de)
AT (1) AT389605B (de)
CA (1) CA1123102A (de)
DE (1) DE3025055A1 (de)
FR (1) FR2462833A1 (de)
GB (1) GB2055023B (de)
SE (1) SE451524B (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1144671A (en) * 1980-04-30 1983-04-12 Northern Telecom Limited Central office interface circuit
US4432089A (en) * 1981-12-24 1984-02-14 Motorola, Inc. Digital loop transceiver for interfacing a digital PABX to a digital subscriber set via a subscriber line
US4414435A (en) * 1982-04-22 1983-11-08 Northern Telecom Limited Interface circuit with flux cancelling transformer circuit
DE3221387A1 (de) * 1982-06-05 1983-12-08 Krone Gmbh, 1000 Berlin Digitales fernsprechendgeraet mit anschluessen fuer analoge zusatzgeraete
NL8203599A (nl) * 1982-09-17 1984-04-16 Philips Nv Hoofdeinde en ontvanger voor een signaaldistributiesysteem.
US4554416A (en) * 1983-03-08 1985-11-19 The United States Of America As Represented By The Secretary Of The Air Force Low voltage two wire to four wire telephone circuit converter apparatus
US4592046A (en) * 1983-03-13 1986-05-27 Iwasaki Tsushinki Kabushiki Kaisha Subscriber's circuit for time division switching system
US4595802A (en) * 1983-11-29 1986-06-17 Northern Telecom Limited Hybrid circuit
US4577255A (en) * 1984-06-20 1986-03-18 Itt Corporation Lightning protection circuit for digital subscriber loop interface
JPS6160057A (ja) * 1984-08-31 1986-03-27 Clarion Co Ltd 信号伝送制御装置
JPS63283351A (ja) * 1987-05-15 1988-11-21 Canon Inc Ｉｓｄｎタ−ミナルアダプタ
JPH04364U (de) * 1990-04-17 1992-01-06
US5267309A (en) * 1990-11-20 1993-11-30 Alcatel Network Systems, Inc. Telephone line unit having programmable read-only memory
KR940004432B1 (ko) * 1991-10-02 1994-05-25 삼성전자 주식회사 전자교환기의 PCM CODEC(DOCER and DECODER) 집적회로
CA2356952A1 (en) 1998-12-31 2000-07-06 Adtran A method and apparatus for an improved analog echo canceller
US6937701B1 (en) 2000-06-16 2005-08-30 Nortel Networks Limited Telecommunications network having a switch equipped with an IVR provisioning/monitoring system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1401627A (en) * 1971-11-16 1975-07-16 Post Office Testing for telecommunications switching systems
US3860761A (en) * 1973-06-14 1975-01-14 Bell Telephone Labor Inc Digital progressively controlled switching system
US3955051A (en) * 1975-01-17 1976-05-04 Plantronics Data set with bridge for duplex operation
US4007334A (en) * 1975-07-02 1977-02-08 Bell Telephone Laboratories, Incorporated Time division digital local telephone office with telemetering line unit
CA1051998A (en) * 1975-11-13 1979-04-03 Northern Electric Company Limited Tdm pcm communication system
US4019149A (en) * 1976-01-16 1977-04-19 Bell Telephone Laboratories, Incorporated Correlative data demodulator
US4119815A (en) * 1977-05-31 1978-10-10 American District Telegraph Company Central station system including secondary communication path established through commercial telephone network
US4149030A (en) * 1977-06-17 1979-04-10 Honeywell Inc. Multi-drop communications device
US4100373A (en) * 1977-09-28 1978-07-11 Harris Corporation Adaptive linearizing acoustic coupling system
US4103112A (en) * 1977-10-17 1978-07-25 Northern Telecom Limited Telephone line circuit with differential loop current sensing and compensation

Also Published As

Publication number Publication date
GB2055023A (en) 1981-02-18
GB2055023B (en) 1983-08-10
SE8005409L (sv) 1981-01-28
JPS5621438A (en) 1981-02-27
FR2462833A1 (fr) 1981-02-13
US4232293A (en) 1980-11-04
AT389605B (de) 1990-01-10
DE3025055C2 (de) 1989-04-27
JPS6411175B2 (de) 1989-02-23
SE451524B (sv) 1987-10-12
DE3025055A1 (de) 1981-02-19
CA1123102A (en) 1982-05-04
FR2462833B1 (de) 1984-06-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee