Differences between POE's power supply standard and non-standard

- Aug 11, 2017-

1, The standard POE: in accordance with the IEEE802.3af / at norms to develop, you need to first detect the power terminal 25K characteristic resistance, the handshake, handshake success, only power; otherwise only data.

For example: the POE power supply into the computer network card, will not burn the computer network card can only be online because the data can be passed.

2, non-standard POE: also called strong for the type, AC power is a power supply; non-first detection of power receiving side, do not shake hands, direct 48V or 54V power supply.

For example: the POE power supply into the computer network card, if it is a Gigabit network card may be burned, because the Gigabit 1 to 8 feet have data, 100 trillion only 1236 data so non-standard use of 45 (+), 78 ( -) Power supply 48 or 54V.


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