Patent ID: 6995656

Claim:
A switching device comprising a plurality of inputs and outputs which are interconnected by an interconnection point matrix for switching electric signals supplied front said inputs to said outputs in accordance with a predefined switching plan, the device comprising: a control member for controlling the operation of the matrix by means of control signals, the control signals being binary signals, and a decoder for decoding said control signals and for deducing the switching state of said interconnection points, characterized in that said decoding means comprise a local decoder, the local decoder being a binary decoder having two outputs per pair of interconnection points for locally decoding said control signals at the level of said interconnection points and characterized in that said binary decoder is connected to the control member by distinct binary connections of the transmission lines for conveying said binary control signals from the control member to said binary decoder, a number N of distinct binary connections from the control member being provided to control a number of pairs of interconnection points which is maximally equal to 2 N−1 .