Fiber Optic Engineering Our fiber optic design services span the gamut from drafting of fiber optic plant on system prints, fiber length and tapering calculations to iteratively optimizing transmitter splitting - all according to parameters that we work with you to define. From any drawing or dxf output, our custom designed AutoCAD and Excel tools allow our experts to eliminate the addition errors, tapering oversights and splice tray spaghetti that complex multi-ring network architectures invite. Our incomparable accuracy, quality control procedures and speed can get you confidently to the front of the fiber cable ordering queue, ahead of your competition, helping you meet your fiscal and franchise requirements. From the smallest extension to the most complex multi-city ring or cross-country run, SpanPro can meet all of your fiber engineering and documentation needs.