Managed switch with 8 × 100/1000Base-FX SFP ports and 16 × Gigabit combo ports (TX or FX). All SFPs use Comnet modules for fiber type and distance. Supports multiple redundancy protocols (ComRing, C-Ring, MSTP/RSTP/STP) for reliable network recovery. Advanced management includes bandwidth control, application-based QoS, device binding for security, and DoS/DDoS auto prevention to block unauthorized access.