Cables of 1 to 20 pairs individually shielded with an aluminium/polyester laminate. Conductors of 0.9 and 1.4 mm nominal diameter, PE insulation. Pairs are stranded in layers to form the core that is protected with an armoured sheath type EAPSP. They are used as signalling cables in railways networks and railways infrastructures. For external installation in ducts or directly buried. Protected against rodents.