What should the characteristics of the cable for the Vimar alarm BUS system be?

Sheathed twisted pair cable, minimum 0.6 mm diameter in accordance with European CEI 46-5 norms. Vimar catalogue item 01840 is a cable that has the required characteristics stated above and can, given a nominal operating voltage of 300/500 V, be run alongside electricity lines. It comes in rolls of 100 m.