Distance changes the design
Standard copper Ethernet runs have a practical channel limit around 100 metres. Longer links need an intermediate cabinet or a different medium.
Electrical separation matters
Fiber does not carry electrical current between buildings and is immune to electromagnetic interference, which is valuable around motors, power equipment and separate earth systems.
The endpoints still need planning
Fiber type, strand count, connectors, modules, termination boxes and spare capacity must be documented together.
Project checklist
- Measure the actual route, not the straight-line distance
- Keep spare strands for resilience and growth
- Label and test every strand at handover
Practical takeaways
- Define the operating requirement before choosing products
- Document interfaces, failure behaviour and ownership
- Test the completed system and keep records for support
