SE7710106L - ELECTRONIC FEED BRIDGE, POSSIBLY WITH RING SIGNAL UNIT, FOR TELEPHONE STATIONS - Google Patents

ELECTRONIC FEED BRIDGE, POSSIBLY WITH RING SIGNAL UNIT, FOR TELEPHONE STATIONS

Info

Publication number
SE7710106L
SE7710106L SE7710106A SE7710106A SE7710106L SE 7710106 L SE7710106 L SE 7710106L SE 7710106 A SE7710106 A SE 7710106A SE 7710106 A SE7710106 A SE 7710106A SE 7710106 L SE7710106 L SE 7710106L
Authority
SE
Sweden
Prior art keywords
possibly
signal unit
ring signal
telephone stations
electronic feed
Prior art date
Application number
SE7710106A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
I Hazman
I Magyar
Original Assignee
Posta Kiserleti Intezet
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 Posta Kiserleti Intezet filed Critical Posta Kiserleti Intezet
Publication of SE7710106L publication Critical patent/SE7710106L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • 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
    • H04M19/023—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone by reversing the polarity of the current at the exchange
SE7710106A 1977-03-15 1977-09-08 ELECTRONIC FEED BRIDGE, POSSIBLY WITH RING SIGNAL UNIT, FOR TELEPHONE STATIONS SE7710106L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUPO000634 HU178691B (en) 1977-03-15 1977-03-15 Electronic feeding bridge and ringer panel for central exchanges

Publications (1)

Publication Number Publication Date
SE7710106L true SE7710106L (en) 1978-09-16

Family

ID=11000600

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7710106A SE7710106L (en) 1977-03-15 1977-09-08 ELECTRONIC FEED BRIDGE, POSSIBLY WITH RING SIGNAL UNIT, FOR TELEPHONE STATIONS

Country Status (4)

Country Link
DE (1) DE2740540A1 (en)
HU (1) HU178691B (en)
PL (1) PL114305B1 (en)
SE (1) SE7710106L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441303A1 (en) * 1978-11-13 1980-06-06 Labo Cent Telecommunicat Electronic bridge power supply for telephone line - employs feedback comparator to provide constant output current and voltage to drive transistor which provides circulating current
FR2585526A1 (en) * 1985-07-25 1987-01-30 Kalfon Rene Subscriber line signalling equipment for telephone switch
DE3617375A1 (en) * 1986-05-23 1987-11-26 Ant Nachrichtentech REMOTE FEEDING DEVICE

Also Published As

Publication number Publication date
PL201365A1 (en) 1978-09-25
HU178691B (en) 1982-06-28
PL114305B1 (en) 1981-01-31
DE2740540A1 (en) 1978-09-21

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