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Fibre optics or copper: which cabling to choose

28 May 2026 5 min read

When designing a network, one of the most common questions is: copper or fibre optics? The answer depends on distances, required performance and environment. Often the best solution combines both.

Copper: simple and versatile

Copper cable (cat. 6/6A) carries both data and, via PoE (Power over Ethernet), power for cameras, access points and IP phones. It's inexpensive, easy to terminate and perfect for runs up to 100 metres: ideal for the horizontal networks of home and office.

Fibre optics: distance and speed

Fibre transmits light pulses: immune to electromagnetic interference, it covers hundreds of metres or kilometres and reaches very high speeds. It's the must-have choice for backbones, building-to-building links and environments with strong interference (warehouses, proximity to machinery).

Single-mode or multi-mode

Multi-mode fibre is cheaper and suited to short internal distances; single-mode covers long distances and is the standard for carrier connections. The right choice depends on the project: we assess it case by case.

The rule of thumb

In short: copper for user outlets and PoE, fibre for backbones, long distances and noisy environments. A well-designed cabling system uses each technology where it performs best, with no waste.

Oscar Impianti Elettrici carries out copper terminations and fibre fusion splicing, with instrument certification, throughout Italy. Our specialised team, with years of experience, builds custom cabling solutions meeting every client need. We offer competitive and often negotiable prices, always with a free quote. Request a free, no-obligation quote.