SG45892G - Subscriber line radio concentration system - Google Patents

Subscriber line radio concentration system

Info

Publication number
SG45892G
SG45892G SG458/92A SG45892A SG45892G SG 45892 G SG45892 G SG 45892G SG 458/92 A SG458/92 A SG 458/92A SG 45892 A SG45892 A SG 45892A SG 45892 G SG45892 G SG 45892G
Authority
SG
Singapore
Prior art keywords
subscriber line
concentration system
line radio
radio concentration
subscriber
Prior art date
Application number
SG458/92A
Other languages
English (en)
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of SG45892G publication Critical patent/SG45892G/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • 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
    • H04M3/301—Circuit arrangements at the subscriber's side of the line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Mobile Radio Communication Systems (AREA)
SG458/92A 1983-11-29 1992-04-24 Subscriber line radio concentration system SG45892G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58223123A JPS60116237A (ja) 1983-11-29 1983-11-29 加入者線自動応固装置

Publications (1)

Publication Number Publication Date
SG45892G true SG45892G (en) 1992-06-12

Family

ID=16793172

Family Applications (1)

Application Number Title Priority Date Filing Date
SG458/92A SG45892G (en) 1983-11-29 1992-04-24 Subscriber line radio concentration system

Country Status (7)

Country Link
US (1) US4622438A (fr)
EP (1) EP0144072B1 (fr)
JP (1) JPS60116237A (fr)
AU (1) AU549255B2 (fr)
DE (1) DE3483353D1 (fr)
HK (1) HK46692A (fr)
SG (1) SG45892G (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62225096A (ja) * 1986-03-26 1987-10-03 Nec Corp 無線電話方式
ATE169438T1 (de) * 1991-08-29 1998-08-15 Cirte Manifatturiera Spa Zwischentrennvorrichtung für fernsprechleitung
AP335A (en) * 1991-11-15 1994-04-27 Csir Telecommunications network.
US5425076A (en) * 1992-06-30 1995-06-13 Minnesota Mining And Manufacturing Company Cellular communications test system
FI97669C (fi) * 1994-01-14 1997-01-27 Nokia Telecommunications Oy Menetelmä tilaajalaitteen toiminnan valvomiseksi sekä tilaajaverkkoelementti
FI102124B1 (fi) 1996-03-07 1998-10-15 Nokia Telecommunications Oy Tilaajaliittymän kaukotestaus johdottoman tilaajaliittymän toteutettavassa radiojärjestelmässä
US5875398A (en) * 1996-10-21 1999-02-23 At&T Wireless Method and apparatus for testing cellular services in a first location from a second location remote from the first location
US6088588A (en) * 1997-03-25 2000-07-11 Nortel Networks Corporation Method and wireless terminal for monitoring communications and providing network with terminal operation information
CA2240224A1 (fr) * 1997-06-12 1998-12-12 Radio Communication Systems Ltd. Reseau d'antenne reparti pour systeme de communications personnelles
AU764023B2 (en) * 1999-01-20 2003-08-07 Oakdene Limited The testing of telephone lines
JP3976461B2 (ja) * 2000-01-06 2007-09-19 Ｎｅｃインフロンティア株式会社 商品管理システムにおける携帯型無線端末の故障監視方法及び該方法の実施プログラムを記録した記憶媒体
US7068757B1 (en) 2000-04-24 2006-06-27 Agilent Technologies, Inc. Apparatus and method for automated testing of the quality of voice communications over data networks

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2032098A5 (fr) * 1969-02-19 1970-11-20 Cit Alcatel
US3790723A (en) * 1972-10-11 1974-02-05 Itt Test arrangement for a two-wire telephone channel
NL7407717A (nl) * 1974-06-10 1975-12-12 Philips Nv Radiotelefoniesysteem.
EP0018941B1 (fr) * 1979-05-07 1983-07-27 Ascom Autophon Ag Installation pour la transmission par voie radio de communications téléphoniques avec un nombre de canaux radio inférieur au nombre de postes d'abonné
DE3375269D1 (en) * 1982-04-05 1988-02-11 Gen Electric Co Plc Telecommunication system loop-back unit

Also Published As

Publication number Publication date
AU549255B2 (en) 1986-01-23
HK46692A (en) 1992-07-03
EP0144072A2 (fr) 1985-06-12
US4622438A (en) 1986-11-11
EP0144072B1 (fr) 1990-10-03
DE3483353D1 (de) 1990-11-08
JPS60116237A (ja) 1985-06-22
EP0144072A3 (en) 1987-08-05
AU3592284A (en) 1985-06-06

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