Netgear GS418TPP User Manual - Page 78

ProSAFE 8-Port or 16-Port Gigabit Smart Managed Switch Model GS418TPP, GS510TLP, and GS510TPP 8. From the Port Priority menu, select the priority for the port in relation to other ports if the total power that the switch is capable of delivering exceeds the total power budget: • Low. Low priority. This is the default setting. • Medium. Medium priority. • High. High priority. • Critical. Critical priority. The port priority determines which ports can still deliver power after the total power delivered by the switch exceeds the total power budget. (In such a situation, the switch might not be able to deliver power to all connected devices.) If the same priority applies to two ports, the lower-numbered port receives higher priority. 9. From the Power Mode menu, select the PoE mode that the port must function in: • 802.3af. The port is powered in and limited to the IEEE 802.3af mode. A PD that requires IEEE 802.3at does not receive power if the port functions in IEEE 802.3af mode. • Legacy. The port is powered using high-inrush current, which is used by legacy PDs that require more than 15W to power up. • Pre-802.3at. The port is initially powered in the IEEE 802.3af mode and, before 75 msec pass, is switched to the high power IEEE 802.3at mode. Select this mode if the PD does not perform Layer 2 classification or if the switch performs 2-event Layer 1 classification. • 802.3at. The port is powered in the IEEE 802.3at mode and is backward compatible with IEEE 802.3af. The 802.3at mode is the default mode. In this mode, if the switch detects that the attached PD requests more power than IEEE 802.3af but is not an IEEE 802.3at Class 4 device, the PD does not receive power from the switch. 10. From the Power Limit Type menu, select how the port controls the maximum power that it can deliver: • None. The port draws up to Class 0 maximum power in low power mode and up to Class 4 maximum power in high power mode. • Class. The port power limit is equal to the class of the attached PD. • User. The port power limit is equal to the value that is specified in the Power Limit (mW) field. This is the default setting. Note: If a PD does not report its class correctly, use of these options can preserve additional PoE power by preventing the switch from delivering more power than the PD requires. However, depending on which option you select, a PD that does not report its class correctly might not power up at all. 11. In the Power Limit (mW) field, enter the maximum power (in mW) that the port can deliver. The range is 3,000-30,000 mW. The default is 30,000 mW. 12. From the Detection Type menu, select how the port detects the attached PD: • IEEE 802. The port performs a 4-point resistive detection. This is the default setting. Configure System Information 78