Installation for conveying a first plurality of electrical signals carried by a first triaxial cable to a second triaxial cable

Installation for conveying a first plurality of electrical signals carried by a first triaxial cable to second triaxial cable comprising a first adapter between the first triaxial cable and a first fibre optic cable and a second adapter between the first fibre optic cable and the second triaxial cable, wherein the first adapter comprises:

• a plurality of low pass anti-alias filters each designed to produce a filtered version of the electrical signals,
• a plurality of analogue to digital converter circuits each connected to one of the low pass anti-alias filters, designed to produce a digital representation of each of the filtered versions of the electrical signals,
• a first digital coding circuit connected to each of the analogue to digital converter circuits, that produces a plurality of digital signals each representing a subset of the digital representations of the electrical signals,
• a plurality of first optical transducers each of which is designed to convert one of the digital electrical outputs from the digital coding circuit to a digital optical signal,
• in that the first fibre optic cable is connected to the first optical transducers and comprises at least one optical fibre, in that the second adapter comprises:
• a plurality of second optical transducers connected to the fibre optic cable, each of which is designed to convert one of the digital optical signals produced by the first optical transducers and transmitted by the first optic cable to a digital electrical signal,
• a plurality of digital decoding circuits each fed from one of the optical transducers and reproducing a digital representation of one of the filtered versions of the electrical signals,
• a plurality of digital to analogue converter circuits each connected to one of the digital decoding circuits and each being designed to reproduce a filtered version of the electrical signals,
• a summing circuit combining the reproduced filtered versions of the electrical signals to reproduce the electrical signals carried by the first triaxial cable,
• and in that the output of one or more of the digital to analogue converters connected to the digital decoding circuitry, represents more than one of the electrical signals carried on the first triaxial cable.