These LC ®* /PC (Lucent Connector / Physical Contact) and LC/APC (Lucent Connector / Angled Physical Contact) connectors were developed to meet the need for smaller and easier-to-use fiber optic connectors. These connectors reduce space required on panels by 50% compared to SC/PC connectors. The. Understanding fiber connector types—SC/APC, SC/PC, LC/UPC, LC/APC, ST/PC, FC/PC, and FC/APC—is essential for selecting the right interface for your application. Each type varies by shape, polish (APC, PC, or UPC), and return loss performance, which affect PC, UPC, and APC Polish Styles: What's the. An optical fiber connector is a device used to link optical fibers, facilitating the efficient transmission of light signals. Previously, in accordance with the classification criteria of different structures of fiber connector types, we have introduced. Every optical termination is manufactured with craftsmanship, which delivers exceptionally low insertion loss and superior return loss resulting in performance measured as equal or better than fusion splicing - a true high quality Master patchcord! 12c MPO: IL max. The choice between them affects back reflection, insertion loss, network performance, and long-term reliability, especially in PON, backbone.