For singlemode fiber, the loss is about 0. 5 dB per km for 1310 nm sources, 0. Common values: 2, 4, 8, 16, 32, 64. Wavelength is recorded in outputs for documentation. 5 dB depending on splitter type. Optional: patch. When you choose a fiber optic splitter for your application, regardless PLC Fiber Splitter & FBT Fiber Splitter, It is important to check its fiber optic splitter loss table. How to well understand performance of a FBT fiber splitter and PLC optic splitters? The first important thing is to discover. It is an optical fiber tandem device with many input and output terminals, especially applicable to a passive optical network (EPON, GPON, BPON, FTTX, FTTH etc. Optical splitters, including FBT couplers and PLC. FOA has a online Loss Budget Calculator web page that will calculate the loss budget for your cable plant. Direct tap branches are useful for monitor points and short lab checks. Configuration type Fiber profile Splitter module Wavelength Feeder length Measured in feet for imperial. In fiber optic networks, particularly in FTTx (Fiber to the x) and PON (Passive Optical Networks) deployments, splitters play a central role in distributing the optical signal from a single source to multiple destinations.