H04Q5/02 - CPC Classification Index

ClassID:

231293 ⎘

H04Q5/02 - CPC Classification

Classification description:

Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems

Sub-classes:

H04Q5/04 » Signalling by currents in one or other or both line wires or additional wires 0
H04Q5/06 » Signalling by amplitude or polarity of dc 0
H04Q5/08 » Signalling by continuous ac 0
H04Q5/14 » Signalling by pulses 3