IL50541A0 - Switching arrangement for telephone switchboards - Google Patents

Switching arrangement for telephone switchboards

Info

Publication number
IL50541A0
IL50541A0 IL50541A IL5054176A IL50541A0 IL 50541 A0 IL50541 A0 IL 50541A0 IL 50541 A IL50541 A IL 50541A IL 5054176 A IL5054176 A IL 5054176A IL 50541 A0 IL50541 A0 IL 50541A0
Authority
IL
Israel
Prior art keywords
switching arrangement
telephone switchboards
switchboards
telephone
switching
Prior art date
Application number
IL50541A
Other versions
IL50541A (en
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 IL50541A0 publication Critical patent/IL50541A0/en
Publication of IL50541A publication Critical patent/IL50541A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
IL50541A 1975-09-24 1976-09-23 Switching arrangement for telephone switchboards IL50541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752542615 DE2542615A1 (en) 1975-09-24 1975-09-24 Telephone line calling state detector - uses decoupling rectifier to avoid line damage

Publications (2)

Publication Number Publication Date
IL50541A0 true IL50541A0 (en) 1976-11-30
IL50541A IL50541A (en) 1979-03-12

Family

ID=5957304

Family Applications (1)

Application Number Title Priority Date Filing Date
IL50541A IL50541A (en) 1975-09-24 1976-09-23 Switching arrangement for telephone switchboards

Country Status (3)

Country Link
CH (1) CH607514A5 (en)
DE (1) DE2542615A1 (en)
IL (1) IL50541A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2812860C2 (en) * 1978-03-23 1986-07-10 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for telecommunication switching systems, in particular telephone switching systems, each with a plurality of switching devices jointly assigned interrogation devices
DE2939009A1 (en) * 1979-09-26 1981-04-09 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR DETERMINING THE SWITCHING STATE OF A SUBSCRIBER CONNECTION LINE IN TELEPHONE SWITCHING SYSTEMS
DE2938946A1 (en) * 1979-09-26 1981-04-09 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR PREVENTING THE DISADVANTIC EFFECT OF AC VOLTAGE SHARES WHEN REGISTERING THE SWITCHING STATE IN A PARTICULAR CIRCUIT CIRCUIT FORMED BY TELEPHONE CONNECTION LINES IN TELEPHONE SWITCHING SYSTEMS

Also Published As

Publication number Publication date
DE2542615A1 (en) 1977-04-07
IL50541A (en) 1979-03-12
CH607514A5 (en) 1978-12-29

Similar Documents

Publication Publication Date Title
JPS5234606A (en) Telephone switching system
JPS51118056A (en) Switching circuit
GB1537872A (en) Electrical switching apparatus
IL53168A0 (en) Switching arrangements for telephone switchboards
AU505226B2 (en) Electrical switchboard framework
JPS5255464A (en) Switching circuit
GB1542700A (en) Loudspeaking telephone
JPS5314509A (en) Time division telephone switching system
AU1812976A (en) Automatic telecommunication switching system
JPS5251856A (en) Switching circuit
HK26082A (en) Switching system
JPS5210548A (en) Switching device
JPS5218108A (en) Conference telephone circuit
GB2021353B (en) Digital time division switching arrangement
GB1549723A (en) Multi-pole switching device
GB1540998A (en) Digital switching centre
IL50541A (en) Switching arrangement for telephone switchboards
JPS51139711A (en) Telephone switching system
JPS5230409A (en) Switching circuit
IL52671A0 (en) Switching arrangements for telephone switchboards
JPS5228674A (en) Switching device
JPS5246481A (en) Switching device
IL50448A0 (en) Switching arrangement for telephone switchboards
IL53170A0 (en) Switching arrangements for telephone switchboards
IL52670A0 (en) Switching arrangements for telephone switchboards