Automatic Protection Unit in Application of Restoration Scheme for FTTH Passive Optical Network

Fiber to the home (FTTH) network security has become a very essential and important topic for optical network. Fault isolation became important issues in order to provide an efficient FTTH network and simultaneously will provide continuous services to the end user without being interrupted by any failure in fiber line. Protection scheme against the failure in distribution fiber line is carried out using our protection and restoration scheme. This paper focused on the implementation of automatic device switching to perform in restoration scheme located at distribution fiber section. This protection device is potentially will improve the system efficiency in order to provide the continuous data flow until it reach to the end user. We implement for immediate split structure in Fiber to the Home (FTTH-EPON) network when the signal is totally split when it pass through the optical splitter. Automatic Protection Unit (APU) is an automatic switching device designed as a package that offered for the ease of customer to perform security and self restoration at the end user side. While in this paper also includes the power penalty analysis for optical switch cascaded in our network protection design according to the APU device.