Single-Mode vs Multimode

Compare fiber media by path, reach, installed plant and optical technology.

Overview

Multimode fiber commonly serves shorter in-building links, while single-mode supports a broad range of short through long-reach technologies. The installed fiber and channel design matter as much as nominal distance.

Key planning checks

Identify the actual fiber type and grade.
Confirm connector and patching architecture.
Use the optic's supported reach for that specific media.
Consider migration and reuse of the installed plant.

NRCube review note

Keep the unknowns visible

Never mix media assumptions between the transmit and receive path.