We designed in TPS2378DDAR for a PD, and connect to Cisco Catalyst Series PoE+ switch, the message from Cisco switch is show device is Class 4 and Max power is 30W. However, the power we get is only 15.4W. Understand that Cisco switch need the PD support LLDP as well, wish to know how to implement base on shipping sample board. and due to our PD is also support PoE++, is there any different between PoE+ and PoE++ if we need to implement something on the our PD board. Thank you.
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