Patchcord SC/APC-SC/APC SM G.657A2 SIMPLEX 70M ROUND DROPPAtchcord (with a connection cable) with a length of 70 meters, a cable diameter of 3 mm, terminated with SC/APC-SC/APC connectors is used to connect network optical equipment such as switches or converters. Patchcords are also widely used in FTTH networks for connecting OLT and ONU/ONT devices.