2017 300w 24 port poe switch 802.3af/at
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Each product is packed in a high quality PE bag, Then put into a box or carton and secured by 2 inserts.
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What is POE?
PoE (Power over Ethernet) is a local area network technology, through twisted pair to provide DC power equipment, has been widely used in enterprise and industrial applications.
According to statistics, 2006, Ethernet power delivery of 32 million ports, by 2011, delivery will grow to 145 million ports, the annual growth rate will exceed 30%. The standard used by the POE industry is the IEEE 802.3af, which specifies that the power supply can be powered by an Ethernet power device under 13W. This is enough for traditional IP telephony and webcams to meet demand, however, with the advent of high power applications such as dual-band access, video phone, PTZ video surveillance system, 13W power supply is obviously not enough to meet the demand, so the IEEE began to develop new POE standard in 802.3at(PoE Plus) to enhance the power of POE.
The Differences between 802.3af and 802.3at
Compared with 802.3af, 802.3at can output more than 2 times the power, the output power of each port can be more than 30W, so can greatly broaden the PoE applications.
Contrast with 802.3at. Although the current 802.3ats has not yet officially launched, but the industry manufacturers to begin to comply with pre-IEEE802.3at standard devices.