The ComNet RLGE2+1SMS is a substation-rated and industrially hardened three-port self-managed switch with uplink management functionality. 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. The DIP-switch-selectable 100BASE-FX or 1000BASE-FX port supports conventional CAT-5e/CAT-6 copper or optical transmission media by selection of the appropriate ComNet SFP module. User-selectable link fault pass-through provides remote indication of a network fault, and two summary fault alarms provide a local or remote indication via dry contact closures in the event of loss of optical link or operating power. The 10/100/1000BASE-TX ports support both auto-negotiation and automatic MDI/MDI-X crossover for full and half-duplex operation; manual MDI/MDI-X switching is not required. The RLGE2+1SMS comes pre-programmed, preventing network video flooding with DIP-switch selection of the SFP port as uplink or as an unmanaged switch. The internal/self-contained 12 to 24 VDC, 48 VDC, or HV AC/DC power supply features redundant power inputs when used with 12 to 24 VDC or 48 VDC power sources, for the highest possible reliability. The simple to install, plug-and-play RLGE2+1SMS is DIN-rail or panel-mountable, and is ideal for mission-critical applications where very high levels of reliability and network availability are of the utmost importance.FEATURES: Full duplex transmission of 10/100/1000 Mbps Ethernet: (2) 10/100/1000BASE-TX ports and (1) 100BASE-FX or 1000BASE-FX SFP port Designed to the requirements of IEC 61850-3 and IEEE 1613 Class 2 for electrical utility substations, EN50155 for railway applications, and NEMA TS-1/TS-2 for traffic signal control equipment, and IEC/EN60950-1 Extended ambient operating temperature range of -40