A generator control system of a vehicle AC generator includes a field coil, a first polyphase armature winding, a second polyphase armature winding, a first rectifier connected to the first armature winding and a second rectifier connected to the second armature winding. A transmission data application is requested and transmitted on the first LAN in accordance with a first service set identity. The trench extends through the substrate. These cams normally revolve together with no relative motion occurring between them.