Hardware Specifications • Switching Engine Model: Store and forward • DRAM: 512 MB • Flash: 1 GB • CPU: 800 MHz ARM CPU • GbE port density per system: - 24P/24T: 28 (24 host ports + four-port GbE uplinks) - 48P/48T: 52 (48 host ports+ four-port GbE uplinks) Optics • 100 Mbps optic/connector type: LC SFP fiber supporting 100BASE-FX SFP (multimode) and BX (single strand) • 10/100/1000BASE-T connector type RJ-45 • GbE SFP optic/connector type: RJ-45, or LC SFP fiber supporting 1000BASE-T SFP, SX (multimode), LX (singlemode), or LH/ZX (single-mode) Physical Layer • Physical port redundancy: Redundant Trunk Group (RTG) • Time-domain reflectometry (TDR) for detecting cable breaks and shorts • Auto MDI/MDIX (medium-dependent interface/mediumdependent interface crossover) support • Port speed downshift/setting maximum advertised speed on 10/100/1000BASE-T ports • Digital optical monitoring for optical ports