AT194921B -
Circuit arrangement for the systematic detection of faults in switching devices in telecommunications systems, in particular in telephone and teleprinter systems
- Google Patents
Circuit arrangement for the systematic detection of faults in switching devices in telecommunications systems, in particular in telephone and teleprinter systems
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Publication number
AT194921B
AT194921BAT194921DAAT194921BAT 194921 BAT194921 BAT 194921BAT 194921D AAT194921D AAT 194921DAAT 194921 BAT194921 BAT 194921B
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Application filed by Siemens Spa ItalianafiledCriticalSiemens Spa Italiana
Application grantedgrantedCritical
Publication of AT194921BpublicationCriticalpatent/AT194921B/en
AT194921D1955-05-101956-03-30
Circuit arrangement for the systematic detection of faults in switching devices in telecommunications systems, in particular in telephone and teleprinter systems
AT194921B
(en)
Circuit arrangement for the systematic detection of faults in switching devices in telecommunications systems, in particular in telephone and teleprinter systems
Circuit arrangement for the central monitoring of timing circuits of several functional units in telecommunication systems, in particular telephone switching systems
Circuit arrangement for the systematic detection of faults in switching devices in telecommunications systems, in particular in telephone and teleprinter systems
Circuit arrangement for checking the connection as well as the determination of possible discharges of the input circuit of switching devices, especially those in telephone systems
Method and circuit arrangement for monitoring the connection in multi-stage switching networks of telecommunication systems, especially telephone switching systems
Circuit arrangement for the automatic control of the setting movement of call seekers in telecommunication systems, in particular in telephone and teleprinter systems
Circuit arrangement for systematically discovering faults or troubles in switching devices employed in signalling systems and particularly in telephone systems and teleprinter systems
Circuit arrangement for checking through-connection or determination of possible discharges of the input circuit of switching devices, in particular for routine testing devices in telephone systems
Circuit arrangement for systematically discovering faults or troubles in switching devices employed in signalling systems and particularly in telephone systems and teleprinter systems