In both indoor and outdoor optical networks data is transferred using fiber optic cables. These contain glass or plastic fibers and use trailing cables or a halogen-free design. Siemens’ PROFIBUS OLM (optical link module) and OBT (optical bus terminal) provide the essential components for a PROFIBUS optical network in a linear, star or redundant configuration.
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The PROFIBUS OLM and OBT bus terminals allow optical networks to achieve transfer rates as high as 12 Mbit/s regardless of the range.
Potential applications include deployment with high EMC levels; networking among multiple buildings; in networks with mixed electrical and optical PROFIBUS segments; and in long-range networks such as those used in transportation tunnels or traffic control systems.
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