The four triggers for fiber
Distance, building separation, backbone bandwidth, and electrical noise. Copper is limited to 100 meters end to end. Fiber also carries no electrical path, which is why it is the correct choice between buildings — it removes ground-potential and lightning-surge risk, a real consideration in Central Florida.
- Runs longer than 100 m (328 ft)
- Building-to-building or campus links
- IDF-to-MDF backbone carrying aggregated traffic
- Paths near motors, generators or high-voltage gear
Single-mode or multi-mode
Multi-mode (OM4) is common and cost-effective for in-campus runs up to a few hundred meters. Single-mode (OS2) costs slightly more in optics but carries far greater distance and bandwidth headroom, so it is the safer specification for any run you expect to keep for a decade.
More on Structured Cabling
Last reviewed 2026-08-12 by the InCTRL Technology Team.