Automatic arrangements

Introduced: September 1968

Last revised: January 2006

Full Title

Details of selecting apparatus or arrangements > Electrical details > Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles > Automatic arrangements

Classification Context

Section:: ELECTRICITY
Class:: ELECTRIC COMMUNICATION TECHNIQUE
Subclass:: SELECTING

2 direct subcodes

Child Classifications

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H04Q 1/24 for connection devices
H04Q 1/26 for signalling trouble in unoccupied sub-exchanges