JPH02501525A - 被呼加入者に対する呼出信号の接続及び切離装置 - Google Patents

被呼加入者に対する呼出信号の接続及び切離装置

Info

Publication number
JPH02501525A
JPH02501525A JP63508052A JP50805288A JPH02501525A JP H02501525 A JPH02501525 A JP H02501525A JP 63508052 A JP63508052 A JP 63508052A JP 50805288 A JP50805288 A JP 50805288A JP H02501525 A JPH02501525 A JP H02501525A
Authority
JP
Japan
Prior art keywords
circuit
voltage
signal
signal means
connection
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP63508052A
Other languages
English (en)
Japanese (ja)
Inventor
ローフマルク，ベングト，グスタフ
Original Assignee
テレフオンアクチーボラゲツト　エル　エム　エリクソン
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 テレフオンアクチーボラゲツト　エル　エム　エリクソン filed Critical テレフオンアクチーボラゲツト　エル　エム　エリクソン
Publication of JPH02501525A publication Critical patent/JPH02501525A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/02—Calling substations, e.g. by ringing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Emergency Protection Circuit Devices (AREA)
JP63508052A 1987-10-08 1988-09-08 被呼加入者に対する呼出信号の接続及び切離装置 Pending JPH02501525A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8703890-7 1987-10-08
SE8703890A SE459138B (sv) 1987-10-08 1987-10-08 Anordning i ett telekommunikationssystem vid inkoppling och urkoppling av en ringsignal

Publications (1)

Publication Number Publication Date
JPH02501525A true JPH02501525A (ja) 1990-05-24

Family

ID=20369801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63508052A Pending JPH02501525A (ja) 1987-10-08 1988-09-08 被呼加入者に対する呼出信号の接続及び切離装置

Country Status (20)

Country Link
US (1) US4908854A (h)
EP (1) EP0311580B1 (h)
JP (1) JPH02501525A (h)
KR (1) KR950013625B1 (h)
CN (1) CN1014292B (h)
AR (1) AR243045A1 (h)
AU (1) AU604383B2 (h)
BR (1) BR8807236A (h)
DE (1) DE3868478D1 (h)
DK (1) DK168316B1 (h)
EG (1) EG18642A (h)
ES (1) ES2029730T3 (h)
FI (1) FI98179C (h)
GR (1) GR3003929T3 (h)
IE (1) IE61777B1 (h)
MX (1) MX169117B (h)
MY (1) MY103396A (h)
SE (1) SE459138B (h)
TR (1) TR28806A (h)
WO (1) WO1989003625A1 (h)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT392712B (de) * 1989-05-23 1991-05-27 Siemens Ag Oesterreich Speiseschaltung zur einspeisung von rufwechselspannungen
DE4326894C2 (de) * 1993-08-11 1997-01-30 Sel Alcatel Ag Schaltungsanordnung zur Rufspannungsabschaltung in einer elektronischen Teilnehmerschaltung
SE519189C2 (sv) 1994-06-28 2003-01-28 Ericsson Telefon Ab L M Anordning för att skydda en abonnentlinjekrets från överspänningar
JPH0851652A (ja) * 1994-06-29 1996-02-20 Harris Corp 電話システム用回路、インピーダンス設定回路、加入者線インタフェース回路、並びに接地キー検出器
GB2298533A (en) * 1994-07-29 1996-09-04 Texas Instruments Ltd Overvoltage protector
US5699420A (en) * 1994-12-23 1997-12-16 Lucent Technologies Inc. Bell sound synthesizer
US5528682A (en) * 1995-01-30 1996-06-18 Harris Corporation Double duty capacitor circuit and method
DE19548063C2 (de) * 1995-12-21 1998-03-12 Siemens Ag Schaltungsanordnung zum Schutz einer Teilnehmerschaltung eines Fernmeldevermittlungssystems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328317A (en) * 1976-08-30 1978-03-16 Hitachi Ltd Control system of subscriber's calling signal
IT1071838B (it) * 1976-11-12 1985-04-10 Cselt Centro Studi Lab Telecom Soppressore di impulsi di suoneria indesiderati per apparecchi telefonici
NL7700719A (nl) * 1977-01-25 1978-07-27 Philips Nv Storingsongevoelig lijnsupervisiecircuit.
FR2451682A1 (fr) * 1979-03-12 1980-10-10 Jeumont Schneider Dispositif d'appel pour installation telephonique automatique d'abonne avec postes supplementaires

Also Published As

Publication number Publication date
US4908854A (en) 1990-03-13
FI98179B (fi) 1997-01-15
SE8703890L (sv) 1989-04-09
CN1014292B (zh) 1991-10-09
MX169117B (es) 1993-06-22
DK265989D0 (da) 1989-05-31
DK265989A (da) 1989-05-31
WO1989003625A1 (en) 1989-04-20
IE882961L (en) 1989-04-08
KR950013625B1 (en) 1995-11-13
TR28806A (tr) 1997-03-25
IE61777B1 (en) 1994-11-30
AU2533788A (en) 1989-05-02
SE459138B (sv) 1989-06-05
FI98179C (sv) 1997-04-25
KR890702363A (ko) 1989-12-23
AU604383B2 (en) 1990-12-13
ES2029730T3 (es) 1992-09-01
EP0311580A1 (en) 1989-04-12
BR8807236A (pt) 1989-10-31
AR243045A1 (es) 1993-06-30
EP0311580B1 (en) 1992-02-19
CN1032610A (zh) 1989-04-26
FI892401A0 (fi) 1989-05-18
FI892401A7 (fi) 1989-05-18
MY103396A (en) 1993-06-30
SE8703890D0 (sv) 1987-10-08
DE3868478D1 (de) 1992-03-26
EG18642A (en) 1993-08-30
GR3003929T3 (h) 1993-03-16
DK168316B1 (da) 1994-03-07

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