IT8120619A0 - Disposizione circuitale per impianti telefonici derivati alimentati dalla rete. - Google Patents

Disposizione circuitale per impianti telefonici derivati alimentati dalla rete.

Info

Publication number
IT8120619A0
IT8120619A0 IT8120619A IT2061981A IT8120619A0 IT 8120619 A0 IT8120619 A0 IT 8120619A0 IT 8120619 A IT8120619 A IT 8120619A IT 2061981 A IT2061981 A IT 2061981A IT 8120619 A0 IT8120619 A0 IT 8120619A0
Authority
IT
Italy
Prior art keywords
mains
circuit arrangement
telephone systems
systems powered
derivative
Prior art date
Application number
IT8120619A
Other languages
English (en)
Other versions
IT1135671B (it
Inventor
Wilhelm Esser
Original Assignee
Siemens Ag
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 filed Critical Siemens Ag
Publication of IT8120619A0 publication Critical patent/IT8120619A0/it
Application granted granted Critical
Publication of IT1135671B publication Critical patent/IT1135671B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/44—Additional connecting arrangements for providing access to frequently-wanted subscribers, e.g. abbreviated dialling

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephonic Communication Services (AREA)
IT20619/81A 1980-03-25 1981-03-20 Disposizione circuitale per impianti telefonici derivati alimentati dalla rete IT1135671B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3011507A DE3011507C2 (de) 1980-03-25 1980-03-25 Schaltungsanordnung für durch das öffentliche Stromversorgungsnetz gespeiste Fernsprechnebenstellenanlagen

Publications (2)

Publication Number Publication Date
IT8120619A0 true IT8120619A0 (it) 1981-03-20
IT1135671B IT1135671B (it) 1986-08-27

Family

ID=6098273

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20619/81A IT1135671B (it) 1980-03-25 1981-03-20 Disposizione circuitale per impianti telefonici derivati alimentati dalla rete

Country Status (5)

Country Link
AT (1) AT384918B (it)
CH (1) CH651981A5 (it)
DE (1) DE3011507C2 (it)
IT (1) IT1135671B (it)
NL (1) NL8101456A (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322660A1 (de) * 1983-06-23 1985-01-03 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum koppeln von zwei mikrorechnern
DE69131239T2 (de) * 1990-02-22 2000-02-24 Canon Kk Nebenstellenanlagesystem

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1410508A (en) * 1972-10-12 1975-10-15 Thorn Ericsson Telecomm Telephone systems

Also Published As

Publication number Publication date
ATA135981A (de) 1987-06-15
NL8101456A (nl) 1981-10-16
AT384918B (de) 1988-01-25
DE3011507C2 (de) 1983-12-01
DE3011507A1 (de) 1981-10-01
CH651981A5 (en) 1985-10-15
IT1135671B (it) 1986-08-27

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