AT354528B - Schaltungsanordnung zur rufsignalisierung - Google Patents

Schaltungsanordnung zur rufsignalisierung

Info

Publication number
AT354528B
AT354528B AT6877A AT6877A AT354528B AT 354528 B AT354528 B AT 354528B AT 6877 A AT6877 A AT 6877A AT 6877 A AT6877 A AT 6877A AT 354528 B AT354528 B AT 354528B
Authority
AT
Austria
Prior art keywords
circuit arrangement
call signaling
signaling
call
arrangement
Prior art date
Application number
AT6877A
Other languages
English (en)
Other versions
ATA6877A (de
Original Assignee
Siemens Ag Albis
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 Siemens Ag Albis filed Critical Siemens Ag Albis
Priority to AT502477A priority Critical patent/AT346489B/de
Priority to AT502577A priority patent/AT346490B/de
Application granted granted Critical
Publication of AT354528B publication Critical patent/AT354528B/de
Publication of ATA6877A publication Critical patent/ATA6877A/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
  • Devices For Supply Of Signal Current (AREA)
AT6877A 1974-09-06 1977-01-10 Schaltungsanordnung zur rufsignalisierung AT354528B (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT502477A AT346489B (de) 1974-09-06 1977-07-13 Verfahren zur herstellung von neuen n- acylamino-alfa-arylacetamidocephalosporin- derivaten und deren salzen
AT502577A AT346490B (de) 1974-09-06 1977-07-13 Verfahren zur herstellung von neuen cephalosporinderivaten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1556976A CH604454A5 (en) 1976-12-10 1976-12-10 Telephone call signal circuit

Publications (2)

Publication Number Publication Date
AT354528B true AT354528B (de) 1979-01-10
ATA6877A ATA6877A (de) 1979-06-15

Family

ID=4410194

Family Applications (1)

Application Number Title Priority Date Filing Date
AT6877A AT354528B (de) 1974-09-06 1977-01-10 Schaltungsanordnung zur rufsignalisierung

Country Status (3)

Country Link
AT (1) AT354528B (de)
CH (1) CH604454A5 (de)
IL (1) IL53543A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103387A (en) * 1991-01-31 1992-04-07 Northern Telecom Limited High voltage converter
CA2105376C (en) * 1992-04-03 1997-02-18 Stanley Daniel Rosenbaum Telephone line interface circuit with voltage switching

Also Published As

Publication number Publication date
CH604454A5 (en) 1978-09-15
ATA6877A (de) 1979-06-15
IL53543A (en) 1980-05-30
IL53543A0 (en) 1978-03-10

Similar Documents

Publication Publication Date Title
DK89378A (da) Abonnentlinie/centralliniekreds
DK479877A (da) Digital overvaagningskreds
SE7703505L (sv) Elektronisk brytare
SE410687B (sv) Elektronisk brytare
AR228738A1 (es) Disposicion de senalizacion digital
ES237743Y (es) Disposicion de senalizacion.
SE7810700L (sv) Abonnentkrets
ATA705077A (de) Schaltungsanordnung zur spannungsbegrenzung
SE7703506L (sv) Elektronisk brytare
DK63281A (da) Telefonkredsloeb
DK183977A (da) Lodret afbojningskreds
SE408357B (sv) Omkopplingskrets
DD133387A5 (de) Schaltungsanordnung fuer teilnehmerleitungen fuer fernsprechaemter
SE420369B (sv) Ingangskrets avsedd for mikrovag
ATA175777A (de) Sprechfunksystem
SE7613699L (sv) Dempningskrets for forspenningsstrom
SE7709758L (sv) Telefonlinjekrets
AT354528B (de) Schaltungsanordnung zur rufsignalisierung
JPS5344104A (en) Calling circuit
AT374023B (de) Schaltungsanordnung zur signalsicherung in lichtsignalanlagen
AT373457B (de) System zur verschleierung von nachrichtensignalen
SE7713143L (sv) Signalalstringskrets
FR2298802A1 (fr) Circuit pou
JPS5291602A (en) Circuit for multiifrequency signaling system
PL101320B1 (pl) Uklad sygnalizacji pracy urzadzen elektrycznych

Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
REN Ceased due to non-payment of the annual fee