Cable with two 0.28 mm² twisted pairs and two 1 mm² wires. PVC insulating sheath, diameter 8 mm, colour: RAL 1021 yellow. Twisted pair, 70 mm twist pitch. Tinned copper wires. Colour: white/light blue and light blue for twisted pair - red and green for power supply wires. Nominal impedance of twisted pair 100 ohm (f=1 MHz), capacitance 50 pF (at 20°C).Minimum cable curvature 80 mm. Fully compliant with CEI 46-6 (latest amendment), CEI 20-11 (latest amendment), CEI 20-37. Supplied in 100m coils.