This series offers systems designers a low profile (1U), low power dissipation power solution that packs embedded high power, high energy efficiency and exceptional versatility into a 1U footprint. It is currently available in two 24 VDC standard output voltage variations - a free-air convection cooled version (PC) for space constrained systems where minimal airflow is needed, and an external forced-air cooled (PCF) version. The series delivers a steady 1000 W over the full input voltage range of 85 - 305 VAC, or a steady 1200 W from 180 VAC and above input line voltage.
The DDP1200 series are parallelable for redundant and/or higher power applications, facilitated by the internal OR-ing and current sharing functions. The series offers both analog and digital controls. Analog signals include DC Power-OK, PS-Inhibit, voltage adjustment, remote sense and current share controls. The digital control uses the standard PMBus™ protocol which allows communications and data logging between the power supply and system, and includes monitoring of input voltage, output voltages (+V1, +12VSB and +5VSB), input current, output current (on +V1), current sharing, thermal health, fan health, life hours, power supply and status informaiton. Additional alarm signals include fan fault, protections failure (OV, OC, OT) and voltages out of specifications. An LED provides visual indication of power supply status.
The DDP1200 series complies with the latest UL/IEC/EN 60950-1 standards for IT equipment and UL 8750 standards for LED lighting applications. It also complies with the Class B standards EN 55011, EN 55032 and FCC for conducted and radiated emissions, IEC/EN 61000-3 Class A for harmonic content, and EN 55024 for EMC immunity.