AFL’s WDM Coexistence modules provide scalable wavelength management for combining existing FTTx service with next-generation PON technologies, allowing overlay of upgraded services onto existing OSP fiber plant infrastructure. Passive circuit design utilizes proven thin-film filter technology featuring low insertion loss, high isolation and superior environmental stability. Modules can be installed in standard LGX chassis and are available with LCA or SCA bulkheads. Multiple module types allow GPON coexistence with XGS-PON, NG-PON2 and/or RF Video. Upgrade port provides flexible next-generation access or PtP WDM for additional services. An OTDR port is available in all configurations.