CAL1x is a 2 m black power cord designed to connect compatible equipment to mains power. CAL11 uses a NEMA 5-15P plug (USA) with an IEC 60320 C5 inlet; CAL12 uses a Schuko plug (Europe) with IEC 60320 C5; CAL13 uses a BS 1363 plug (UK) with IEC 60320 C5. All variants terminate in an IEC 60320 C5 appliance inlet and are intended for Wisycom equipment, including the RPU500.