Difference between revisions of "Troubleshoot/POE IEEE 802.3at 2009 vs IE 802.3AF 2003"
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==POE: IEEE 802.3at-2009 vs. IE 802.3AF-2003== | ==POE: IEEE 802.3at-2009 vs. IE 802.3AF-2003== | ||
This technology is especially useful for powering IP telephones , wireless LAN access points, IP Camera and Cameras with pan tilt zoom(PTZ), remote Ethernet switches, embedded computers , thin clients and LCDs. | This technology is especially useful for powering IP telephones , wireless LAN access points, IP Camera and Cameras with pan tilt zoom(PTZ), remote Ethernet switches, embedded computers , thin clients and LCDs. | ||
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| + | '''Dahua POE Switch''' | ||
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| + | [[File:poepic3.jpg|500px]] | ||
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'''POE: IE 802.3AF-2003''' The original IEEE 802.3af-2003 PoE standard provides up to 15.4 W of DC power (minimum 44 V DC and 350 mA) to each device. Only 12.95 W is assured to be available at the powered device as some power is dissipated in the cable. | '''POE: IE 802.3AF-2003''' The original IEEE 802.3af-2003 PoE standard provides up to 15.4 W of DC power (minimum 44 V DC and 350 mA) to each device. Only 12.95 W is assured to be available at the powered device as some power is dissipated in the cable. | ||
'''POE: IEEE 802.3at-2009''' The IEEE 802.3at-2009 PoE standard, sometimes called "POE+ or POE PLUS", (Ratified September 11, 2009), provides up to 30 watts) and 25.5 W of DC power is assured to be available at the powered device as some power is dissipated in the cable. | '''POE: IEEE 802.3at-2009''' The IEEE 802.3at-2009 PoE standard, sometimes called "POE+ or POE PLUS", (Ratified September 11, 2009), provides up to 30 watts) and 25.5 W of DC power is assured to be available at the powered device as some power is dissipated in the cable. | ||
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'''POE in Back of Dahua NVR''' | '''POE in Back of Dahua NVR''' | ||
[[File:poepic2.jpg|550px]] | [[File:poepic2.jpg|550px]] | ||
Revision as of 17:49, 16 June 2016
POE: IEEE 802.3at-2009 vs. IE 802.3AF-2003
This technology is especially useful for powering IP telephones , wireless LAN access points, IP Camera and Cameras with pan tilt zoom(PTZ), remote Ethernet switches, embedded computers , thin clients and LCDs.
Dahua POE Switch
POE: IE 802.3AF-2003 The original IEEE 802.3af-2003 PoE standard provides up to 15.4 W of DC power (minimum 44 V DC and 350 mA) to each device. Only 12.95 W is assured to be available at the powered device as some power is dissipated in the cable.
POE: IEEE 802.3at-2009 The IEEE 802.3at-2009 PoE standard, sometimes called "POE+ or POE PLUS", (Ratified September 11, 2009), provides up to 30 watts) and 25.5 W of DC power is assured to be available at the powered device as some power is dissipated in the cable.
POE in Back of Dahua NVR
