Yes, it is possible and often recommended to run fiber optic cables through conduit. This practice provides several benefits, including protection from physical damage, environmental hazards, and unauthorized access. I have a project where we ran a 2" conduit from the exterior emergency generator yard to a Remote Generator Annunciator Panel inside a building. I beleive this is 3-#18 THWN, 24V. We now need to put a data switch at the generator yard but don't have any other raceway going to the generator yard. Most systems use passive optical network (PON) architectures with signals going through splitters that allow up to 32 users to share one link and carry bidirectional signals. These bidirectional signals, some carrying CATV too, require APC (angled PC) connectors. Having outlined the two strategies, one can easily note some advantages and disadvantages of each of the approaches. Single-mode cables use a very narrow core, typically 9 micrometers, supporting the long distances and high bandwidth required by internet.
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