The AIS2003 is a compact, industrial-grade Layer 2+ managed switch featuring 8×10/100/1000Mbps RJ45 ports and 4×1Gbps combo ports (RJ45/SFP), offering flexible copper or fiber uplink options for diverse networking environments. Built for industrial applications, it operates reliably in extreme temperatures from -40°C to 75°C and is housed in a fanless, all-aluminum enclosure for enhanced heat dissipation and corrosion resistance. The switch supports static routing, VLAN, QoS, and ring protection protocols such as STP, RSTP, MSTP, and ERPS, ensuring stable and resilient network performance in mission-critical deployments. Additional features include dual power input support, lightning and ESD protection, and multiple management interfaces via Console, Telnet, SSH, and Web—making it ideal for smart infrastructure, industrial control, and edge networking scenarios.