PL201365A1 - ELECTRONIC POWER BRIDGE WITH BELLING UNIT - Google Patents

ELECTRONIC POWER BRIDGE WITH BELLING UNIT

Info

Publication number
PL201365A1
PL201365A1 PL20136577A PL20136577A PL201365A1 PL 201365 A1 PL201365 A1 PL 201365A1 PL 20136577 A PL20136577 A PL 20136577A PL 20136577 A PL20136577 A PL 20136577A PL 201365 A1 PL201365 A1 PL 201365A1
Authority
PL
Poland
Prior art keywords
electronic power
power bridge
belling
belling unit
unit
Prior art date
Application number
PL20136577A
Other languages
Polish (pl)
Other versions
PL114305B1 (en
Inventor
Istvan Hazman
Istvan 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 PL201365A1 publication Critical patent/PL201365A1/en
Publication of PL114305B1 publication Critical patent/PL114305B1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
PL20136577A 1977-03-15 1977-10-07 Electronic supply bridge with ringing unit PL114305B1 (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 (2)

Publication Number Publication Date
PL201365A1 true PL201365A1 (en) 1978-09-25
PL114305B1 PL114305B1 (en) 1981-01-31

Family

ID=11000600

Family Applications (1)

Application Number Title Priority Date Filing Date
PL20136577A PL114305B1 (en) 1977-03-15 1977-10-07 Electronic supply bridge with ringing unit

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
DE2740540A1 (en) 1978-09-21
SE7710106L (en) 1978-09-16
HU178691B (en) 1982-06-28
PL114305B1 (en) 1981-01-31

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Legal Events

Date Code Title Description
LAPS Decisions on the lapse of the protection rights

Effective date: 20050424