Ring in ring passive optical network system for providing fiber to the home with reduced number of fibers

摘要

A mini-optical line termination (OLT) includes at least one management card for providing control and management functions. A plurality of network cards having a predetermined number of ports are configured to support a predetermined number of subscribers by providing a gigabit passive optical network to the subscribers. At least one network device is coupled to an upstream device and the plurality of network cards. The at least one network device is configured to control the forwarding of data between the upstream device and the subscribers.