Todays test and instrumentation application demand highest power capability in combination with extremem stability and lowest noise. WIENER developed the high density, modular, microprocessor controlled UEP 6021 power supply to match these needs. The UEP 6021 provides up to 8 channels floating DC. Due to the modular concept with universal power modules all output channels and voltages as well as available power and current limits can be taylored to the actual crate requirements. Standard Voltages for VME are +5V and +/-12V. VME64x  in addition defines +3.3V and 48V whereas the CERN VME-430 standard requires -5.2V and -2V as well as optionally +/-15V. For special application any combination of up to 8 DC voltages is possible. The UEP 6021 is available in 2 power classes / chassis dimensions; 3U (3kW) or 6U (6kW). The auto-ranging AC input with power factor corrections allows world-wide use.  All parameters are programmed and controlled by the embedded microprocessor. This also includes programmable current limits and over- / under voltage, voltage adjustments and a monitoring- and alarm-circuit. The UEP 6021 is equipped with RS232 and CAN-bus interface for communication.