Dell N3200-ON Networking N-Series Switches User Guide version 6.8.0 - Page 81

PoE 60W Support PoE 60W allows power to be supplied to Class 4 powered devices that require power up to 60 watts. PoE 60W power must be configured manually for 802.3AT switches. Class D or better cabling is required for feeds in excess of 30 watts. Normally, CAT 5E cabling does meet this requirement. PoE-capable switches that are connected to another PSE supplying power will stop supplying power on the affected ports. PSE capability should be disabled when connecting Dell PoE enabled ports to other PSE equipment. Powered Device Detection The switch is capable, based upon configuration, of detecting legacy, AF, AT or BT devices in two-pair or four-pair modes. BT/AT detection is initiated first, followed by AF detection, and if configured, legacy detection. The switch supplies limited power to the port during power up and prior to performing detection. Only 802.3BT-capable switches are capable of BT detection. PoE Power Management Modes PoE-capable switches can be configured to manage powered devices (PD) using a dynamic, static, or class-based management. The power management mode is configured using the power inline management command. Static mode is not available on 802.3BT-capable switches. Static Power Management In this mode, the power reserved for the port is the configured limit regardless of whether the port is powered or not. The device may draw up to the configured limit. This mode is useful for devices that do not support LLDP-MED. Available Power = Power Limit of the Sources - Total Configured Power The total configured power is calculated as the sum of the configured power allocation for each port. Static mode reserves maximum power for the port, for example, 30W for two-pair mode and 60W for four-pair mode, unless a lower limit is configured by the administrator. Power is not reserved until a PD is connected to the port. The powered device may draw up to the Switch Feature Overview 81