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Filing date
Publication date
Application filed by Siemens AgfiledCriticalSiemens Ag
Publication of NL6511957ApublicationCriticalpatent/NL6511957A/xx
Publication of NL151602BpublicationCriticalpatent/NL151602B/en
H04Q1/00—Details of selecting apparatus or arrangements
H04Q1/18—Electrical details
H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
H04Q1/22—Automatic arrangements
H04Q1/24—Automatic arrangements for connection devices
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04Q—SELECTING
H04Q3/00—Selecting arrangements
H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
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Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Monitoring And Testing Of Exchanges
(AREA)
NL6511957A1964-09-301965-09-14
CIRCUIT FOR A COMMUNICATION SYSTEM, IN PARTICULAR TELEPHONE CONNECTION SYSTEM, WITH A COUPLING FIELD.
NL151602B
(en)
CIRCUIT FOR A TELECOMMUNICATIONS SYSTEM, IN PARTICULAR TELEPHONE SYSTEM, IN WHICH CONNECTIONS ARE BUILT ACROSS A COUPLING FIELD AFTER A ROAD FINDING OPERATION.
CIRCUIT FOR COUPLING FIELDS WITH COUPLING RELAYS, WHICH HAVE TWO STABLE SWITCHING POSITIONS (TRACTOR COUPLING FIELDS), IN A TELECOMMUNICATIONS, ESPECIALLY TELEPHONE CONNECTION SYSTEM.