Specifications and StandardsGeneral Complies with IEEE 802.3afPower over Ethernetspecification• Supports PoE Powered Device (PD) classificationidentity• Complies with IEEE 802.3, IEEE 802.3u,IEEE 802.3ab• Supports full-duplex and half-duplex operation with IEEE 802.3x• flow control and back pressure flow controlSupports jumbo frame (maximum length is 9220 bytes)• Port- and Tag-based VLAN• Supports IEEE 802.1p QoS traffic prioritization• Embedded KB RAM for data buffering• Filtering Address Table supports 4K entries perdevice• Auto MDI/MDIX • MTBF - 105,000 hours• Management Web based configuration of keyfunctionality, including:• 802.1Q VLAN▪ Quality of Service (QoS)▪ Port Mirroring▪ Port Trunking▪ Port configuration setting: Speed/Disable,duplex mode and▪ device flow control Utility based configurationand switch detection• Change Password▪ Assign IP addressing parameters▪ Firmware upgrades▪ Switch monitoring▪ Power over Ethernet Up to 15.4W over a PoE port• Maximum 170W for all ports• PoE over current protection• PoE circuit sorting protection• Power Consumption 9 watts (maximum with no PD devices connected)• 180 watts (maximum for up to 11 PoE devices connected)• Operating Hum.: 10% to 90% RH/ StorageHum.: 5% to 90% RH• Physical 24 auto-sensing 10/100 Mbps RJ-45Ethernet ports (powered)• Two 10/100/1000 Mbps auto-sensing RJ-45Ports (non-powered)• Visual Diagnostic LEDs: Power, System, EthernetPorts (24), and• Gigabit Ports (2) TX: Link/Activity, Speed (2 LEDs)▪ PoE Status (Ports 1 - 24), bi-color LED▪ Standard 1U, 19 inch rack-mount case design• Internal power supply• Regulatory EMI - FCC Class A, CE EMC Class A• Safety - UL, CUL• Minimum System Requirements Connect anydevice that supports 10/100 (up to 24) or 1000 Mbps• Ethernet (Up to 2) via RJ-45 connector and CAT5cable Configuration/Management Utility requiresWindows 2000/XP