What does a fibre upgrade project actually involve?
If you’re worried about disruption, it helps to understand what a structured fibre upgrade looks like in practice.
1. Network and cabling audit
First, you need a clear picture of what you have today:
- Existing cable routes and tray capacity
- Locations and roles of key cabinets and comms rooms
- Current link speeds and utilisation between switches
ACCL’s data cabling audit service is often the starting point, giving you a factual baseline before you decide what to upgrade.
2. Design and planning
Based on your growth plans and the signs we’ve covered, a designer will:
- Identify which routes should move to fibre (e.g. between specific cabinets or buildings)
- Specify fibre types (single‑mode vs multi‑mode) and connector standards
- Plan how new fibre will integrate with existing switches (via SFP/SFP+ modules, etc.)
- Consider resilience (e.g. dual diverse routes for key links)
You’ll come away with a clear, costed design – not just a pile of theoretical recommendations.
3. Installation (usually staged and out of hours)
Fibre upgrade works are normally scheduled to minimise disruption:
- Out of hours or weekend work for risers and core links
- Staged cutovers, so not all parts of the network are affected at once
- Temporary parallel running of old and new links in critical areas
The physical work involves:
- Installing and securing fibre cable runs in trays or conduits
- Terminating fibres into patch panels and wall boxes
- Cleaning, testing and labelling every core and spare fibre
From an end‑user perspective, the main impact is usually a short, planned outage window while links are switched over.
4. Testing, documentation and optimisation
Once the fibre is in place, engineers will:
- Test every link for loss and performance with fibre test equipment
- Update network diagrams and patching schedules
- Optimise switch configurations to make use of new capacity
For many clients, this is also a good moment to tidy up existing cabinets. ACCL’s data cabinet tidy and remediation work (delivered via our data cabinet tidy service) often runs alongside fibre projects, leaving things cleaner and easier to manage than before.
Common concerns about upgrading to fibre (and simple answers)
“Isn’t fibre much more expensive than copper?”
The cable itself is more expensive, and the termination skills are more specialised. However:
- You usually need far fewer runs (one fibre cable can carry many links).
- The cost is focused on backbone links, not every outlet.
- The long‑term performance and lifespan often outweigh the upfront cost.
For most organisations, the real comparison isn’t “fibre vs copper”, it’s “fibre vs continued congestion and repeat upgrades”.
“Will we have to replace all our switches?”
Not necessarily. Many business‑grade switches already have SFP/SFP+ ports designed for fibre uplinks. In those cases, upgrading is as simple as:
- Installing suitable fibre modules
- Patching them into new fibre patch panels
Part of the design phase is confirming what your existing hardware can support and where upgrades make sense.
“Is fibre harder to maintain?”
Fibre requires slightly different handling and testing tools, but in day‑to‑day use it’s very stable. Once installed and documented, it typically needs less ongoing attention than copper.
If you ever do suffer damage – common in external runs or high‑traffic areas – ACCL’s fibre optic repair services can locate and fix faults without needing to replace entire routes. For a full commercial fibre optic installation service, ACCL designs, installs, splices and tests fibre for offices, campuses and data centres.
“Will we get any immediate benefit, or is it just future‑proofing?”
In most cases, you see improvements straight away:
- Faster backups and data transfers
- Smoother cloud app performance at busy times
- More headroom for Wi‑Fi, CCTV and VoIP traffic
The “future‑proofing” angle is the bonus: you’ll also be ready for the next round of growth and technology change without having to revisit the core cabling again.
