Chapter
3: Web Management
PoE
NGSME24G4S User Manual | 147
3.1.11. Configuration - PoE
This page allows the user to inspect and configure the current PoE port settings.
Power over Ethernet Configuration
Reserved Power determined by
There are three modes for configuring how the ports/PDs may reserve power.
1. 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.
2. 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.
3. 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.