HP 0950-1945 - Battery back-up module (Yokogawa PS503-0101) - 270-330VDC input - 28.8VDC output, 15A (charger) - 4.9VDC output, 30A (off-battery) - Note: Power supply MUST be the same manufacturer Retail
HP 0950-1949 - DC to DC converter module (Yokogawa PS500-0101) - 270-330VDC input - 5.1VDC output, 100A - +5.1V DC to DC Converter Module (270V to 330V DC Input) Retail
HP 0950-1947 - DC-DC converter module (Yokogawa PS502-0101) - 270-330VDC input - Three DC outputs (+12V, -12V, -2V) Retail