BE856239A - SUBSCRIBER LINE EQUIPMENT CIRCUIT - Google Patents

SUBSCRIBER LINE EQUIPMENT CIRCUIT

Info

Publication number
BE856239A
BE856239A BE178878A BE178878A BE856239A BE 856239 A BE856239 A BE 856239A BE 178878 A BE178878 A BE 178878A BE 178878 A BE178878 A BE 178878A BE 856239 A BE856239 A BE 856239A
Authority
BE
Belgium
Prior art keywords
subscriber line
line equipment
equipment circuit
circuit
subscriber
Prior art date
Application number
BE178878A
Other languages
French (fr)
Original Assignee
Materiel Telephonique
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 Materiel Telephonique filed Critical Materiel Telephonique
Publication of BE856239A publication Critical patent/BE856239A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
BE178878A 1976-07-01 1977-06-29 SUBSCRIBER LINE EQUIPMENT CIRCUIT BE856239A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7620093A FR2357131A1 (en) 1976-07-01 1976-07-01 Detection of telephone circuit loop state - employing Hall effect cell in magnetic circuit of detector coils

Publications (1)

Publication Number Publication Date
BE856239A true BE856239A (en) 1977-10-17

Family

ID=9175113

Family Applications (1)

Application Number Title Priority Date Filing Date
BE178878A BE856239A (en) 1976-07-01 1977-06-29 SUBSCRIBER LINE EQUIPMENT CIRCUIT

Country Status (2)

Country Link
BE (1) BE856239A (en)
FR (1) FR2357131A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1029422B (en) * 1955-09-30 1958-05-08 Siemens Ag Relayless subscriber circuit for telecommunication, especially telephone systems
DE1158584B (en) * 1962-08-16 1963-12-05 Telefunken Patent Circuit arrangement for checking the call and occupancy status of subscriber lines in telecommunication systems, in particular telephone switching systems, with the aid of Hall generators

Also Published As

Publication number Publication date
FR2357131A1 (en) 1978-01-27
FR2357131B1 (en) 1978-12-15

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