Besides internal power supplies, can you connect external power for additional PoE power?
The ProCurve Switch zl Power Supply Shelf (J8714A) provides a 3U high enclosure to hold up to two extra zl switch power supplies (the same type used in the 8212zl/5400zl switches) to provide additional PoE power to zl switches beyond the PoE power available through the switch’s internal power supplies alone. These extra supplies also can be used to provide PoE power redundancy beyond what is possible with switch internal supplies. Large Switch zl VoIP installations are ideal environments for the ProCurve Switch zl Power Supply Shelf.
