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Publication Date: 02/1/2010
Archive >  February 2010 Issue >  Product Preview: Electronics West / MDM > 

Emerson Unveils Hi Watt 12V Supply
Hi-wattage power supply.
Carlsbad, CA — Emerson Network Power has enhanced its highest-wattage 12V front-end distributed power supply, the DS2900. Expanding the company's DS line of distributed power solutions, the new supply is suitable for use in high availability telecommunications applications and a variety of enterprise networking environments, including server farms and large storage systems.

The unit is rated for up to 2900W of adjustable output power at 240A. In addition to the 12VDC output, it provides as standard a 3.3VDC auxiliary output for powering standby circuitry and an optional alternative 5.5VDC auxiliary output. The compact 2U x 3U form factor offers a high system-level power density of more than 24W/-in.3.

The new supply's efficiency is approximately 91 percent at 50 percent load. The power supply's shorter form factor also enables mid-plane rack configurations, while same-side AC inputs and DC outputs allow hot-plug rack configuration.

The power supply accepts a wide input voltage range of 180VAC to 264VAC with no minimum load requirement and is equipped with active Power Factor Correction rated at 0.99 typical to minimize input harmonic current distortion. It also includes active AC inrush controls — limiting inrush current at power-on to 55A — and is protected against overvoltage conditions up to 130 percent. The supply is equipped with a compact (40 x 28mm), variable speed "smart" fan supported by integrated controls to enhance the product's energy efficiency and reliability. To minimize unplanned downtime and enhance serviceability, the power supply has both N+1 redundancy and internal ORing controllers. It supports a wide operating temperature range of 0 to +50°C and when used under normal operating conditions (25°C ambient at full load), it offers a high demonstrated mean time between failures (MTBF) of more than 500,000 hours.

Contact: Emerson Network Power, 5810 Van Allen Way, Carlsbad, CA 92008 888-412-7832 or 760-930-4600 fax: 760-930-0698 Web:

See at Pacific Design/MDM West Booth #2397.

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