Phihong is the leading manufacturer of power supplies, power adapters, LED drivers,  power-over-ethernet internet midspans, and custom/oem solutions
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In this section:

For Immediate Release

March 28, 2012

For more information contact:
Thomas Hopwood, Phihong USA
(631) 610-2289

Patricia Staino, BtB Marketing
(919) 872-8172

POE33U-1AT, Level V Outdoor Midspan

New IEEE802.3at-compliant midspan ideal for outdoor applications…

Phihong Powers Security Cameras in Harsh Environments with a New Single-Port Midspan

FREMONT, CA (March 28, 2012) — Phihong USA, a global leader in the development of Power-over-Ethernet technology and solutions, has redesigned its best selling IEEE802.3at-compliant single-port power injector for outdoor applications including access points and security cameras with pan/tilt/zoom. The full waterproof POE33U-1AT midspan is fully functional in harsh environments and the 33.6W output is ideal for users wanting to expand their security or wireless networks.

“Typically, networking equipment is not designed for use in industrial settings where temperature fluctuations and moisture can significantly affect powering devices such as security cameras,” said Keith Hopwood, vice president of marketing for Phihong USA. “The POE33U midspans are completely waterproof and safe to use indoors and outdoors for a variety of residential, commercial and industrial applications.”

Complimenting the POE36U-1AT IEEE802.3at-compliant single-port midspan, the POE33U-1AT also has an output of 33.6W at 56V that compensates for up to 7.65W in wire drops to devices that may be up to 100 meters away from the network switch. The power injector has an ingress protection rating of 67 making it waterproof and with an operating temperature range of  -40C up to 65C; the unit is fully functional in even the harshest of environments.

The POE33U-1AT is equipped with over-voltage, over-current and short-circuit protections standard and may operate at gigabit Base-T data rates. Additionally, the midspan operates at a minimum average efficiency rate of 70% and bears safety approval markings from CE and UL.

Three ports on the front of the unit connect to standard NPT conduit piping or users may opt for wire glands to enable full waterproof operation. The wire glands are available for a single cable with the part number PGLAND750 and for two cables as PGLAND750-2.

The midspan measures 300mm by 184mm by 82mm with the mounting bracket in place and weighs 2.83Kg. Pricing for the outdoor midspan starts at $262.38 in single piece quantities; for more information including product datasheet visit the website

About Phihong

As a world leader in the development of world class power solutions, Phihong is one of the leading suppliers of adapters, power supplies, LED drivers and Power-over-Ethernet products to OEMs serving datacom, telecom, personal electronics, networking, lighting, and industrial markets. Phihong has a truly global reach with design labs, manufacturing facilities and sales support centers in California, New York, The Netherlands, China, Japan, and Taiwan. For more information contact Thomas Hopwood, Phihong USA Corporation, 47800 Fremont Blvd., Fremont, CA 94538, or call (510) 445-0100, fax (510) 445-1678, email, or visit


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