The fused WDM, 1310/1550 nm enables the multiplexing and demultiplexing of two wavelength regions with high isolation and low insertion loss. These components are manufactured with a highly automated process to achieve consistent quality and reliability. Regular parts are available with a wide variety of housing and connector options and can therefore be readily specified in a wide variety of applications, enabling rapid design cycles and new project builds. Reliability is assured through qualification to Telcordia GR-1221.