User’s Manual of GS-5220 LCD Series
21
75 Watts of Power over 4-pair UTP
The GS-5220 Series with LCD Touch Screen that features ultra PoE adopts the IEEE 802.3at/af standard. Instead
of delivering power over 2-pair twisted UTP – be it end-span (Pins 1,2,3 and 6) or mid-span (Pins 4,5,7 and 8),
they provide the capability to source up to 75 watts of power by using all the four pairs of standard Cat.5e/6
Ethernet cabling. In the new 4-pair system, two PSE controllers will be used to power both the data pairs and the
spare pairs. They can offer more PoE applications, such as:
■ PoE PTZ speed dome
■ Any network device that needs higher PoE power to work normally
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