My guess is it's already-terminated dark fiber with an FC connector (no transceiver) Found an example here. https://www.fiberinstrumentsales.com/fis-singlemode

My guess is it's already-terminated dark fiber with an FC connector (no transceiver) Found an example here. https://www.fiberinstrumentsales.com/fis-singlemode-multimode-talk-set-w-sc-fc-interchangeable.html https://www.fiberinstrumentsales.com/fis-singlemode-multimod... You can't really "get into" an optical fiber mid-run without splicing. Splicing isn't really that hard (I've done it! Fusion splicers are little robotic wonders. Most of the work is in the prep, not the splice itself.)