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 AgfiledCriticalSiemens Ag
Publication of NL6501793ApublicationCriticalpatent/NL6501793A/xx
Publication of NL150982BpublicationCriticalpatent/NL150982B/xx
H04M3/08—Indicating faults in circuits or apparatus
H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04Q—SELECTING
H04Q3/00—Selecting arrangements
H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Computer Networks & Wireless Communication
(AREA)
Sub-Exchange Stations And Push- Button Telephones
(AREA)
Monitoring And Testing Of Exchanges
(AREA)
Exchange Systems With Centralized Control
(AREA)
NL6501793A1964-03-051965-02-12Schakeling voor een telefoonstelsel, in het bijzonder huistelefoonstelsel, met centrale identificatie.
NL150982B
(nl)
Schakeling voor een telefoonstelsel, in het bijzonder huistelefoonstelsel, met gemeenschappelijke besturingsinrichtingen, kiesgeheugens, alsmede blokkeer- respectievelijk vrijgeefinrichtingen.