Users Guide

82 Switch Feature Overview
Regardless of the power management mode, if the device being powered up is
a Class 1, 2, or 3 AF device, then the guard band is configured according to
the device class.
Dynamic or Static Power Management Mode Guard Band
In this mode, the guard band for the port being powered up is 32 watts.
Class-Based Power Management Mode Guard Band
In this mode, the dynamic guard band for the port being powered up is:
• For Class 0 AF device: User defined power limit
• For Class 1 AF device: 4 watts
• For Class 2 AF device: 7 watts
• For Class 3 AF device: 15.4 watts
• For Class 4 AF device: If AF device, it is 15.4 watts. If the device is an AT
device, the guard band is 32 watts regardless of class.
PoE Plus Default Settings
The following table shows the default PoE Plus settings for the Dell EMC
Networking N1108P-ON/N1124P-ON/ N1148P-ON, N1524P/N1548P,
N2024P/N2048P, N2128PX-ON, N3024P/N3048P, and N3132PX-ON switches.
Table 2-2. PoE Plus Key Features (Dell EMC Networking N1108P-ON/N1124P-ON/
N1148P-ON, N1524P/N1548P, N2024P/N2048P, N2128PX-ON, N3024P/N3048P, and
N3132PX-ON Only)
Feature Description
Global Usage Threshold 90%
Per-Port Admin Status Auto
Per-Port Power Prioritization Enabled (globally, per-port priority is Low
Per-Port Power Limit None
Power Management Mode Dynamic
Power Detection Mode 802.3at plus legacy
Power Pairs alternative-a