The ComNet RLGE3FE7MS4 is a substation-rated and industrially hardened fully managed layer 2 gigabit Ethernet switch. Fully compliant with the requirements of IEC 61850-3, IEEE 1613 Class 2, EN50155, and NEMA TS-1/TS-2, it is designed for deployment in environments where high levels of electromagnetic noise and interference (EMI) and severe voltage transients and surges are routinely encountered, such as electrical utility substations and switchyards, heavy manufacturing facilities, trackside and roadside electronic equipment, and other difficult out-of-plant applications. Providing (7) 10/100 BASE-TX ports, the (3) 10/100/1000TX or 100/1000BASE-FX user-configurable combo gigabit uplink ports support conventional CAT-5e/CAT-6 copper or optical transmission media by selection of the appropriate ComNet SFP module. Featuring an internal/self-contained 85-264 VAC/88-373 VDC power supply, the RLGE3FE7MS4 is DIN-rail or wall-mountable, and is ideal for mission-critical applications where very high levels of reliability and network availability are of the utmost importance. Utilizing exclusive ComNet C-Ring technology, the fastest recovery redundant ring available, network recovery time of <10 ms is provided for protection from network faults or temporary interruptions. ComChain permits additional redundant network rings of different redundancy protocols to function together as a larger and more robust network topology. eConsole, a Windows-based utility, is included for centralized/remote management and configuration of all functions of the RLGE3FE7MS4.