I work in an Oil Drilling Company. We have an oil field that is very large and has different office blocks at variable distances with each other. The distance doesnt exceed 2KM. Fiber Cable used is Multi Mode Fiber.
I am planning to connect them all to one central site. The Problem is that i borrowed a couple of SFP's and tested them in my Head Office. But they were producing huge losses. Please tell me what things i need to check. Also suggest any other solutions that might work in this situation.