Netgear GSM4248P User Manual - Page 140

AV Line of Fully Managed Switches M4250 Series Main User Manual • To configure a single port, select the check box associated with the port, or type the port number in the Go To Interface field and click the Go button. • To configure multiple ports with the same settings, select the check box associated with each port. • To configure all ports with the same settings, select the check box in the heading row. 7. From the Port Power menu, select the administrative PoE mode of the port: • Enable: The port's capacity to deliver power is enabled. This is the default setting. • Disable: The port's capacity to deliver power is disabled. 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. • Pre-802.3bt: The port supports Class 4 devices that use 4-pair PoE (4PPoE) to receive power higher than 30W but that are not compliant with IEEE 802.3bt. The port also supports the IEEE 802.3at and IEEE 802.3af modes. Configure Switch System 140 Information Main User Manual