sentences:  MIL-STD-1760 was intended to support both current needs as well as to provide growth capability as the technology matures.MIL-STD-1760 defines a Class I aircraft interface, which has four high bandwidth and two fiber optic interfaces, and a Class II interface, which has only two high bandwidth and no fiber optic interfaces.The MIL-STD-704 power connections provide the store with access to 28 VDC, three-phase wye 400 Hz, 115/200 VAC and 270 VDC aircraft power; it is usual to route only one of the last two supplies, however, if both are made available, then they are never made active simultaneously.