ABSOPULSE Electronics has recently released the RWY 200-HSA-P2 series of fully encapsulated railway quality DC-DC converters with pure convection cooling. The 200W converters deliver a single, regulated output of 12Vdc, 24Vdc, 36Vdc, 48Vdc or 110Vdc. They accept inputs of 24Vdc, 36Vdc, 48Vdc, 72Vdc or