Linksys SGE2000 Cisco SGE2000, SGE2000P Gigabit Ethernet Switch Reference Guid - Page 39

Chapter SGE2000/SGE2000P Gigabit Ethernet Switch Reference Guide 3 Managing Power-over-Ethernet Devices Power-over-Ethernet (PoE) provides power to devices over existing LAN cabling, without updating or modifying the network infrastructure. Power-over-Ethernet removes the necessity of placing network devices next to power sources. Power-over-Ethernet can be used in the following applications: • IP Phones • Wireless Access Points • IP Gateways • PDAs • Audio and video remote monitoring Powered Devices are devices which receive power from the device power supplies, for example IP phones. Powered Devices are connected to the device via Ethernet ports. Guard Band protects the device from exceeding the maximum power level. For example, if 400W is maximum power level, and the Guard Band is 20W, if the total system power consumption exceeds 380W no additional PoE components can be added. The accumulated PoE components power consumption is rounded down for display purposes, therefore remove value after decimal point. NOTE: Due to hardware limitations, the power measurement accuracy is 4%. DefiningPoE System Information The PoE Settings Page contains system PoE information for enabling PoE on the device, monitoring the current power usage, and enabling PoE traps. 1. Click Bridging > Port Management > PoE Settings. The PoE Settings Page opens: Chapter 3: Managing Power-over-Ethernet Devices 31 DefiningPoE System Information