Transition Networks SM TAT4X Series Web User Manual page 62

Transition Networks
Switch > PoE Management > PoE Configuration
This page lets you view and configure the current PoE port settings.
Reserved Power determined by: There are three modes for configuring how the ports/PDs may reserve power.
Allocated mode: In this mode the user allocates the amount of power that each port may reserve. The
allocated/reserved power for each port/PD is specified in the Maximum Power fields.
Class mode: In this mode each port automatically determines how much power to reserve according to
the class the connected PD belongs to, and reserves the power accordingly. Four different port classes
exist and one for 4, 7, 15.4 or 30 Watts. In this mode the Maximum Power fields have no effect.
LLDP‐MED mode: This mode is similar to the Class mode expect that each port determine the amount
power it reserves by exchanging PoE information using the LLDP protocol and reserves power accordingly.
If no LLDP information is available for a port, the port will reserve power using the class mode. In this
mode the Maximum Power fields have no effect
For all modes: If a port uses more power than the reserved power for the port, the port is shut down.
Power Management Mode: There are 2 modes for configuring when to shut down the ports:
Actual Consumption: In this mode the ports are shut down when the actual power consumption for all
ports exceeds the amount of power that the power supply can deliver or if the actual power consumption
for a given port exceeds the reserved power for that port. The ports are shut down according to the ports
priority. If two ports have the same priority the port with the highest port number is shut down.
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