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What are the RJ45 pins used to have power to IP phones via PPoE switch.
The original IEEE.3af- PoE standard devices provides up to.4 W of DC power (minimum V DC and mA) to each device.
The newer PoE+ IEEE.3at- PoE standard provides up to.5 W of power. Some vendors have announced products that offer up to W of power over a single cable by utilizing all four pairs in the Category5 cable.
