Development of protection and restoration module in PON distribution section

Fiber to the Home - Passive Optical Network (FTTH-PON) network protection and restoration system is an important aspect to consider in order to ensure service availability and network reliability for the subscribers. In this paper, a protection and restoration mechanism has been proposed, focusing on the development of the protection and restoration module that could be integrated with the Optical Network Unit/ Terminal (ONU/T) without any modification to the communication signals. This solution will be used together with the developed Access Control System (ACS) modules that ensemble a complete distribution side protection and restoration solution. The protection scheme is enhanced with the sharing of neighbouring protection link should the main protection link failed. The feasibility of the solution is shown in the simulation results and has been analyzed and discussed accordingly.