IE890224L - Circuit arrangement for telephone terminal stations - Google Patents

Circuit arrangement for telephone terminal stations

Info

Publication number
IE890224L
IE890224L IE890224A IE22489A IE890224L IE 890224 L IE890224 L IE 890224L IE 890224 A IE890224 A IE 890224A IE 22489 A IE22489 A IE 22489A IE 890224 L IE890224 L IE 890224L
Authority
IE
Ireland
Prior art keywords
telephone terminal
terminal station
terminal stations
circuit arrangement
switched
Prior art date
Application number
IE890224A
Original Assignee
Deutsche Telephonwerk Kabel
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 Deutsche Telephonwerk Kabel filed Critical Deutsche Telephonwerk Kabel
Publication of IE890224L publication Critical patent/IE890224L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

Telephone terminal stations are connected via network terminating unit to an integrated services digital communications network. When there is power supply failure in the terminating unit, a circuit controls supply to the terminal station from the exchange so that, in the passive state, the power consumption of the telephone terminal station is reduced to a minimum. To this purpose, the voltage for internal users of the telephone terminal station is switched off and only switched on again in the active state, i.e. with transmitting or receiving occupation or operation. <IMAGE> [DE3803710A1]
IE890224A 1988-02-04 1989-01-24 Circuit arrangement for telephone terminal stations IE890224L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3803710A DE3803710A1 (en) 1988-02-04 1988-02-04 CIRCUIT ARRANGEMENT FOR TELEPHONE DEVICES

Publications (1)

Publication Number Publication Date
IE890224L true IE890224L (en) 1989-08-04

Family

ID=6346867

Family Applications (1)

Application Number Title Priority Date Filing Date
IE890224A IE890224L (en) 1988-02-04 1989-01-24 Circuit arrangement for telephone terminal stations

Country Status (12)

Country Link
BE (1) BE1001445A3 (en)
DE (1) DE3803710A1 (en)
DK (1) DK44089A (en)
ES (1) ES2010124A6 (en)
FR (1) FR2628275A1 (en)
GB (1) GB2215562B (en)
GR (1) GR890100062A (en)
IE (1) IE890224L (en)
IT (1) IT1228171B (en)
LU (1) LU87426A1 (en)
NL (1) NL8900167A (en)
PT (1) PT89602B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT398665B (en) * 1991-08-23 1995-01-25 Kapsch Ag ISDN TERMINAL
DE4217857A1 (en) * 1992-05-29 1993-12-02 Sel Alcatel Ag Circuit arrangement for reducing power consumption
AU692201B2 (en) * 1994-02-17 1998-06-04 Alcatel N.V. Network termination unit
DE4405037A1 (en) * 1994-02-17 1995-08-24 Sel Alcatel Ag Network and apron termination device of a telecommunications network
FR2725333B1 (en) * 1994-09-30 1996-12-13 Ind Tech Res Inst METHOD AND APPARATUS FOR POWER MANAGEMENT AND CONTROL OF AN ISDN TELEPHONE NETWORK
CN1319272C (en) * 2003-01-09 2007-05-30 瑞昱半导体股份有限公司 Circuit arrangements capable of operating at high voltages

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2810709B2 (en) * 1978-03-11 1981-02-12 Schaltbau Gesellschaft Mbh, 8000 Muenchen Arrangement for switching the power supply for additional devices of telephone systems
EP0035067B1 (en) * 1980-02-28 1984-03-07 ANT Nachrichtentechnik GmbH Arrangement for powering a subscriber unit
AU553442B2 (en) * 1981-05-29 1986-07-17 Standard Telephones And Cables Pty. Limited Constant output polarity circuit
DE3311385C2 (en) * 1983-03-29 1985-07-04 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Method for operating terminals of a digital subscriber line
DE3322152C2 (en) * 1983-06-21 1986-09-04 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Method and circuit arrangement for operating terminals of a digital subscriber line
DE3416828A1 (en) * 1984-05-07 1985-11-07 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Digital telephone subscriber device

Also Published As

Publication number Publication date
DK44089D0 (en) 1989-02-01
BE1001445A3 (en) 1989-10-31
DK44089A (en) 1989-08-05
GB2215562A (en) 1989-09-20
ES2010124A6 (en) 1989-10-16
IT1228171B (en) 1991-06-04
FR2628275A1 (en) 1989-09-08
LU87426A1 (en) 1989-06-14
GB2215562B (en) 1992-02-12
DE3803710A1 (en) 1989-08-17
GR890100062A (en) 1994-03-31
GB8902222D0 (en) 1989-03-22
PT89602A (en) 1989-10-04
NL8900167A (en) 1989-09-01
PT89602B (en) 1995-03-01
IT8919276A0 (en) 1989-02-01

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