Main Long-Distance Optical Cables
A fiber-optic cable, also known as an optical-fiber cable, is an assembly similar to an but containing one or more that are used to carry light. Distance limit of up to 2 km on older OM1 fibres; around 550 m on OM4 for 10Gbps. There are different types of fiber optic cables because each type is optimized for specific applications that have unique requirements for bandwidth, transmission distance, and environmental factors. Transceivers (small form-factor pluggables or SFPs) play a pivotal role in converting electrical signals to optical signals and vice versa. DWDM technology allows multiple optical carrier signals (each on a different wavelength/laser color) to be transmitted simultaneously on the same fiber. Think of it as turning a single-lane road into a massive, multi-lane super-highway.
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