These are what we call “Basic Fiber Solutions” and convert electrical signals into optical signals and then transport over fiber optic links. These are economical “point to point” solutions meaning they require a dedicated fiber link for each signal. Typical maximum distance is 10km for Singlemode fiber. (Much less for Multimode). For transporting multiple signals over a single fiber link, or transporting signals over longer distances (40km and 80km), please refer to the “CWDM Fiber Solutions” category.