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The SISPM1040-384-LRT-B is a managed Gigabit PoE+ switch suitable for connecting and powering devices in challenging environments. The dual speed SFP ports provide the ultimate flexibility by allowing fiber SFP uplink ports with varying communication distances. The uplink ports can also be used in a redundant ring for maximum network reliability. The switch has a PoE power budget of 240 Watts, provides up to 30 Watts per port on all ports simultaneously, has redundant input power connections, and a fault alarm relay to ensure safe reliable operation in temperatures between -40°C and +70°C.