BE468588A - - Google Patents

Info

Publication number
BE468588A
BE468588A BE468588DA BE468588A BE 468588 A BE468588 A BE 468588A BE 468588D A BE468588D A BE 468588DA BE 468588 A BE468588 A BE 468588A
Authority
BE
Belgium
Prior art keywords
relay
contact
sep
contacts
code
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE468588A publication Critical patent/BE468588A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/02Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
BE468588D BE468588A (https=)

Publications (1)

Publication Number Publication Date
BE468588A true BE468588A (https=)

Family

ID=119293

Family Applications (1)

Application Number Title Priority Date Filing Date
BE468588D BE468588A (https=)

Country Status (1)

Country Link
BE (1) BE468588A (https=)

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