HP 2600 - Manual (Page 225)

Power Over Ethernet (PoE) Operation for the Series 2600-PWR Switches
PoE Event Log Messages
Port < port-# > PD MPS Absent indication.
The switch no longer detects a device on < port-# >. The device
may have been disconnected, powered down, or stopped
functioning.
Port < port-# > PD Other Fault indication.
There is a problem with the PD connected to the port.
Port < port-# > PD Over Current indication.
The PD connected to < port-# > has requested more than 15.4 watts
of power. This may indicate a short-circuit or other problem in
the PD.
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