The Gazelle 19” rack-mounted switches are designed to satisfy the broadband backbone transportation and aggregation requirements under rigorous industrial and business conditions. The products support a flexible electrical and SFP optical interface with combinations of up to 4 x 10GE/GE uplinks and 48 x GE downlinks. The Gazelle S3028i-LF series are cost-effective 1U rack-mount industrial switches with cost efficiency. This series switches are specially designed to meet requirements for industrial automation control systems, and have a very flexible port portfolio. The Gazelle S3028i-PWH-MGL adopts a standard 1U chassis and offers high-density interfaces, including four 1/10 Gbit/s uplink optical interfaces, max twenty-four 100/1000 Mbit/s auto-negotiation downlink optical interfaces, and Max sixteen 1000 Mbit/s PoE interfaces. The Gazelle S3028i-MGL enables maximum flexibility when configured, in rings (intersect ring and tangent ring topologies), ensuring sub-50ms switchover time. Enhanced security is provided by supporting IEEE802.1x, RADIUS and other authentication methods. The ISCOM3052G GE modular NMS-managed Layer 3 industrial switch is specially designed for the Automatic Control System (ACS) in the industrial field, which can operate stably for a long time in harsh environments. The ISCOM3052G adopts a fully modular design, provides high-density interfaces, and is configurable and scalable. It supports complete Layer 3 routing protocols, delivers industry-leading ring network technologies, supports multiple industrial redundant ring network protocols. All these Rack-Mountable series Switches can sustain high performance in extreme environments. They also claim a fanless design, as well as IP40 dust protection housing, a redundant power supply, and are compliant with IEC 61850-3, IEEE 1613, and EN50121-4. All these switches adopt low-power fanless cooling technology with a wide operating temperature ranging from - 40 to 85˚C, and ensure up to 35-year Mean Time Between Failures (MTBF) and a 3-year warranty.