PMBus Protocol added to Xsolo series

Excelsys Technologies has added PMBus communication capabilities to its Xsolo series of 1U, single-output power supply units (PSUs). Xsolo units, equipped with an optional I2C digital interface, can now be remotely monitored by system supervisory equipment using industry standard PMBus protocols.

The power supply family is offered in a convection-cooled, 504W open-frame U-channel form-factor model (6.8W/in3) and an enclosed, fan-cooled chassis model that delivers up to 1008W (13.6W/in3). Capable of achieving 92% efficiency, these PSUs are compact and rugged and meet the requirements of medical, industrial, IT and military COTs applications.

In addition, both models carry a five-year warranty.

Commenting Gary Duffy, Excelsys CEO said that the move had come in response to customer requests. "The remote monitoring of system power supply voltage, current, and temperature can provide system status and remote health monitoring functionality for customers' end products."

The Xsolo family features dual safety agency certification: EN60950-1 for industrial applications and EN60601-1, 2nd and 3rd edition for medical applications which means that it meets stringent creepage and clearance, 4kVac isolation and <300uA leakage current requirements. The Xsolo family also meets the voltage dip and interruption requirements of SEMI F47, as well as the environmental conditions per MIL-STD-810. In addition, the products are compliant with all relevant EMC emission and immunity standards.

System integrators also benefit from a number of standard features, including variable fan speed, 12V/300mA isolated bias supply, remote ON/OFF, output voltage control and parallel operation for higher power applications. Nominal output voltages are 24V and 48V with wide adjustment ranges and user-defined setpoints.