Substation Industrial Switch 10/100BASE-TX to 100BASE-FX Transition Networks's Substation Industrial Switches are hardened devices designed to reliably operate in harsh substation environments or other hazardous environments (Class 1, Div. 2). The switches are IEEE1613 compliant and offer many, industry first features such as a Lifetime Warranty, Automatic Link Restoration, Far-End Fault, Pause and the widest selection of fiber optic ports and distances. A wide voltage input range accommodates both AC and DC voltage inputs and the extended operating temperature range of -40 C to +75 C with no fans, offers flexibility in the mounting environment with the utmost in reliability. For mission critical applications, a dual fiber port version is offered that can be used in a redundant fiber ring or multiple path configurations.