OM3 Multimode Fibre Optic Design Cabling Termination & Testing
In March 2015, a client approached us who had constructed a new bio-energy plant in Windsor Great Park.
The new buildings being spread over a campus, connections back to the main IT data centre communications room were required. As part of this project we were asked to design and commission multimode fibre optic links between 5 buildings on the campus.
The OM3 loose tube fibre optic multimode cables were installed into underground ducts between the buildings. At the termination point, the cables were directly polished as an LC connector into patch panels. Within the BMS panels of the bio-energy plant and in the pump room, we terminated the cables into DIN rail fibre optic enclosures and mounted them alongside the building management system interface panels. All fibre optic cabling was OTDR and loss tested.
When using LC connections, it's our recommendation to generally terminate pairs as a crossover, which allows IT technicians to use the fibre optic links in a similar way as an RJ45 would be patched.
This method helps to eliminate the need for checking the polarity of optical connections. When patching fibre optic, always ensure that the leads are cleaned.
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