If you absolutely must have an unused connection, whether it's a port on a splitter or a long unused run of cable, you really need to terminate. You don't need to buy expensive ones. In fact the ones from the local home store will do just fine. By dividing a single optical signal from a central Optical Line Terminal (OLT) into multiple outputs for Optical Network Terminals (ONTs) at users' homes, splitters eliminate the need for dedicated fibers to each residence—slashing infrastructure costs while scaling network reach. This guide. We all know that you should use the smallest possible splitter, because the signal strength through every port is lower even if you don't use the extra lines. 1x32 splits were common in North America for G-PON architectures. As XGS-PON continues to be adopted, some service. Traditional ODNs typically adopt a balanced optical splitting scheme, with balanced PLC splitter specifications including 1×4, 1×8, and 1×16. However, in the ODN architecture of PON networks such as GPON and XG (S)-PON, balanced splitting often requires more optical fiber cores, increasing. Thus, the PON network connects one OLT port to 32 ONTs. Cascaded Approach The cascaded approach may use a 1×4 splitter residing in an outside plant enclosure. Several center wavelength options are available (see Table 1. Narrowband couplers have a ±15 nm bandwidth, dual-window couplers have a ±40 nm bandwidth around.