The PL-300 family of products extends PacketLight's optical network solution capabilities by providing a wide range of passive optical modules. The PL-300 provides the needed optical layer functions. The PL-300 interconnects seamlessly with PacketLight's WDM product family and third-party WDM products to form cost-effective high-capacity DWDM and CWDM solutions. The PL-300 provides low granularity wavelengths, add and drop capabilities and can be used to increase 4G and 10G solution reach. The PL-300 is PacketLight's foundation for multi-chassis application architecture. With the PL-300, a customer can start with a low-cost solution, that meets urgent needs and grow step by step to form a full solution over a single or dual fiber as demand expands.