Main cost drivers include cable grade (indoor vs outdoor, armoured), distance, and labor for trenching, splicing, and termination. This guide presents ranges in USD and practical price estimates to help budget planning. Fiber optic splicing costs vary widely depending on project size, location, fiber type, and site conditions. The North America Fiber Optic Splice Closures (FOSC) market is anticipated to grow at an annual rate of. 1) Proofing and Placement - Per foot pricing for proofing and placement of approximately 1,856,332 ft (351. 864F Prysmian non-armored ribbon cable (24 Fibers per ribbon) into existing empty. conduit (price includes the provision of redline documentation, fiber cable. Executive Summary: Fiber optic cable failures cost enterprises an average of $15,000 per hour in network downtime—yet most catastrophic losses stem from a handful of preventable installation errors.