Jumper Selection Guide
Fiber Jumper Selection Guide
Quick installer guide for choosing OpticBuilds patch cables.
LC vs SC
- LC — small form factor; common on switches, SFPs, high-density panels.
- SC — larger push-pull; standard on many FTTH ONTs, splitters, and OSP trays.
UPC vs APC
- UPC (blue) — flat polish; many LAN / transceiver links.
- APC (green) — angled polish; preferred for PON / FTTH to cut reflectance.
Rule: Match the polish on the port. Do not mate APC to UPC.
Simplex vs Duplex
- Simplex — one fiber (BiDi or single path).
- Duplex — paired TX/RX for dual-fiber links.
OS2 vs OM3/OM4
- OS2 — single-mode; FTTH, long reach, PON.
- OM3/OM4 — multimode; short-reach data center / LAN.