Enterprise Networking & Connectivity

Fiber Optics

Single-mode and multimode backbones — fusion splicing, termination and OTDR testing, with a documented loss budget for every link.

Fibre is specified when distance, bandwidth or electrical isolation rules copper out: between buildings, up risers, into a data centre, or anywhere a run exceeds the 90 metres copper is allowed. It is also the right answer where a path crosses between structures with different earthing, because glass carries no current and therefore no earth loop.

The choice between single-mode and multimode is usually settled by distance and by how long the link has to last. Multimode is cheaper to terminate and its optics cost less, but its usable distance shrinks as data rates rise — a link that runs 10G comfortably today may not run 100G later. Single-mode costs slightly more up front and effectively removes distance and bandwidth as future constraints, which is why campus backbones are increasingly specified in OS2 regardless of today's requirement.

The part that decides whether a fibre installation works is the termination. SOT fusion splices rather than relying on mechanical connectors where loss matters, and tests every link with an OTDR so the loss budget is a measured number in the handover file rather than an assumption.

What this covers

  • Single-mode and multimode

    OS2 for campus and long backbone runs, OM3 and OM4 where distances are short and optics cost dominates — chosen against the link's expected life, not only today's data rate.

  • Fusion splicing and termination

    Splicing, pigtails, patch panels and enclosures, with connector types kept consistent across a site so patching does not depend on a drawer of adapters.

  • OTDR and loss testing

    Every link characterised end to end, with the trace and the loss budget recorded per link in the handover documentation.

  • Inter-building and riser routes

    Direct-buried, ducted and aerial routes between structures, and riser cabling fire-stopped at each floor.

  • Data-centre structured fibre

    Pre-terminated trunks and MPO cassettes where density and change rate make field termination impractical.

What we will ask you

These are the questions that decide the specification. Having the answers ready is what turns a first conversation into a real quotation.

  1. 01

    How long does this link have to last?

    The cable will outlive several generations of optics. If the answer is fifteen years, single-mode is usually the cheaper decision even where multimode would work today.

  2. 02

    How many cores, and how many spare?

    Pulling additional fibre later costs far more than including spare cores now, particularly on a buried or riser route.

  3. 03

    Who holds the test results?

    Without OTDR traces at handover there is no baseline, and every future fault becomes a fresh investigation rather than a comparison.