100% OPEN&SHORT&MISS WIRE TEST CONDUCTOR RESISTANCE: 0.5FT-7FT CONDUCTOR RESISTANCE:2 Ohm/PCS 14FT-50FT CONDUCTOR RESISTANCE:3 Ohm/PCS TEST INSTRUMENT:CCL-W-IO064 INSULATION RESISTANCE: 5M Ohm(MIN) HI-POT:300V DC Application: RJ45 Connectors. The shielding layer made of aluminium foil allows to minimize crosstalk and interference with the external environment