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Active power factor correction for PoE applications….

Phihong Develops 24-Port PoE Injector
and Power Supply for Switch and VoIP Applications 

FREMONT, Calif. (June 20, 2005) — Phihong, the global leader in low cost power supplies, has developed its new 275W power supply with integrated 24-port Power-over-Ethernet injection specifically for switch and PBX applications. Providing 12VDC output voltage for switch and 50VDC output voltage per port in PoE, the PSM275-909 can implement eight- to 24-ports in a PoE system, making it ideal for applications such as 10/100 Base T Ethernet switches, security systems, VoIP phone systems and blade servers.

“Upgrading a design for PoE requires not only PoE injection but special power supplies,” said Keith Hopwood, Vice President of Marketing for Phihong USA.  “The PSM275 provides both in a single package, offering a simple implementation in a standard off-the-shelf solution. It was developed as part of our commitment to providing a complete line of PoE products that are affordable and easy-to-utilize.”

The PSM275 can be powered from either wide-range AC input, 90 to 265VAC or a single 44-57VDC input. With an external isolation diode, the power supply can be operated in redundant AC or DC configuration.  It offers an output of 200W for PoE, and 75W for 12V switch. With DC input the product can supply up to a full 375W or 15.4W per port of PoE.

The PSM275 has internal power management with programmable port control, power limiting and port prioritization. An RS232 port allows the user to control and monitor operation. Phihong also provides a free Windows GUI for local diagnostics and troubleshooting.

Features include power factor correction and full compliance to European and United States EMC requirements, all in a 1U size. The product is safety-approved for cUL 60950-1 and TUV EN60950.

Pricing for the PSM275-901 is $95 in OEM quantities. More information is available on the web site, at www.phihong.com/PSM275.html

Phihong is the leading supplier of power solutions to networking and personal electronic OEMs supplying custom power supplies from 10-1.5kW, power adapters and PoE injection solutions. With global sales for 2005 expected to exceed $400 million, Phihong has engineering and manufacturing facilities in North and South America, Taiwan and mainland China. For more information contact Ka Yue Kwok, Phihong, 47800 Fremont Blvd., Fremont, CA 94538, or call (510) 445-0100, fax (510) 445-1678, email usasales@phihongusa.com, or visit http://www.phihong.com.