D-Link DMS-3130 User Manual - Page 27

DMS-3130 Series Multi-Gigabit L3 Stackable Managed Switch Web UI Reference Guide ▪ If the total power consumption exceeds the system power limit ▪ If the per-port power consumption exceeds the per port power limit • Active circuit protection automatically disables the port if there is a short. Other ports will remain active. • The Switch supports both Fast PoE and Perpetual PoE. By default, the Fast PoE is enabled and cannot be disabled manually, whereas the Perpetual PoE is disabled but can be enabled manually. For Fast PoE, PDs will be powered on without the need for the Swich to boot into the operating system. For Perpetual PoE, PDs will receive power even during system reboot. Based on IEEE 802.3af/at/bt, power is received and supplied according to the following classifications: Class 1 2 3 4 5 6 Maximum power used by the PD 3.84 Watts 6.49 Watts 13 Watts 25.5 Watts 40 Watts 51 Watts Maximum power supplied by the Switch 4 Watts 7 Watts 15.4 Watts 30 Watts 45 Watts 60 Watts PoE System This window is used to configure the PoE system and display the detailed power information for PoE modules. To view the following window, click System > PoE > PoE System, as shown below: Figure 3-11 PoE System Window The fields that can be configured for PoE System are described below: Parameter PoE Perpetual Unit Usage Threshold Guard Band Policy Preempt Description The POE Perpetual provides power to connected powered devices (PD) during system reboot. Disabling this option will not turn off the PoE. To enable or disable PoE on port basis, refer to System > PoE > PoE Configuration. Select the stacking unit ID of the Switch that will be configured here. This option is only available when stacking is enabled. Enter the usage threshold to generate a log and send the corresponding standard notification. The range is from 1 to 99 percent. Specify the amount of power to be preserved for guard band protection. The range of valid setting is from 0 to 15400 milliwatts. Select this option to enable or disable the disconnection of the Powered Device (PD) which is power provisioned with a lower priority in order to release the 16