HU178691B - Electronic feeding bridge and ringer panel for central exchanges - Google Patents

Electronic feeding bridge and ringer panel for central exchanges

Info

Publication number
HU178691B
HU178691B HUPO000634A HU178691B HU 178691 B HU178691 B HU 178691B HU PO000634 A HUPO000634 A HU PO000634A HU 178691 B HU178691 B HU 178691B
Authority
HU
Hungary
Prior art keywords
ringer
panel
feeding bridge
electronic feeding
central exchanges
Prior art date
Application number
Other languages
English (en)
Hungarian (hu)
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
Priority to HUPO000634 priority Critical patent/HU178691B/hu
Priority to SE7710106A priority patent/SE7710106L/
Priority to DE19772740540 priority patent/DE2740540A1/de
Priority to PL20136577A priority patent/PL114305B1/pl
Publication of HU178691B publication Critical patent/HU178691B/hu

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)
HUPO000634 1977-03-15 1977-03-15 Electronic feeding bridge and ringer panel for central exchanges HU178691B (en)

Priority Applications (4)

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
SE7710106A SE7710106L (sv) 1977-03-15 1977-09-08 Elektronisk matarbrygga, eventuellt med ringsignalenhet, for telefonstationer
DE19772740540 DE2740540A1 (de) 1977-03-15 1977-09-08 Elektronische speisebruecke und laeuteeinheit zu fernsprechzentralen
PL20136577A PL114305B1 (en) 1977-03-15 1977-10-07 Electronic supply bridge with ringing unit

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
HU178691B true HU178691B (en) 1982-06-28

Family

ID=11000600

Family Applications (1)

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

Country Status (4)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441303A1 (fr) * 1978-11-13 1980-06-06 Labo Cent Telecommunicat Pont d'alimentation electronique pour ligne telephonique
FR2585526A1 (fr) * 1985-07-25 1987-01-30 Kalfon Rene Equipement de signalisation de ligne d'abonne pour commutateur telephonique
DE3617375A1 (de) * 1986-05-23 1987-11-26 Ant Nachrichtentech Fernspeiseeinrichtung

Also Published As

Publication number Publication date
DE2740540A1 (de) 1978-09-21
SE7710106L (sv) 1978-09-16
PL201365A1 (pl) 1978-09-25
PL114305B1 (en) 1981-01-31

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