3Com 2226 PWR User Guide - Page 42

42 CHAPTER 4: CONFIGURING THE SWITCH To configure the PoE settings of a port: 1 On the PoE Configuration screen, click the port number that you want to configure. The PoE Setting screen appears. Figure 21 PoE Setting Screen 2 Configure the PoE settings of the selected port, including: ■ Power ■ Priority ■ Power limit For more information on the available options for each PoE setting, refer to Table 13. Table 13 PoE Configuration Options Option Description Port Shows the number of the port that is being configured Power ■ Enable - Enables PoE capability on the port. By default, power is enabled on all ports, allowing them to supply Power over Ethernet to any connected device. ■ Disable - Disables PoE capability on the port Option Priority Power Limit Power Used Description When the available power budget (180 watts total power, with 18 watts guard band) is exceeded, the Switch stops supplying Power over Ethernet to lower priority ports. Set the PoE priority for the port by selecting one of the following options: ■ Low (least important) ■ High (default) ■ Critical (most important) For ports with the same priority, ports connected to the lowest physical port number will have priority over those connected to higher port numbers. For example, port 3 will have a higher priority than port 5, providing they both share the same power priority weighting. A critical device on port 24 will have a higher priority than a low priority device on port 1. For more information on planning for and managing PoE, refer to "Planning a Power Budget" on page 43. Sets the maximum power that is allocated for the connected PoE device. Available options include: ■ 15400 (default) ■ 7000 ■ 4000 Figures are in milliwatts. If a PoE device is connected to the port, shows how much power it is using. Figures are in decivolts (dV). To get the actual voltage, divide the number by 10. This information is continuously updated.