<Li> MT - RJ (Mechanical Transfer Registered Jack) uses a form factor and latch similar to the 8P8C (RJ45) connectors . Two separate fibers are included in one unified connector . It is easier to terminate and install than ST or SC connectors . The smaller size allows twice the port density on a face plate than ST or SC connectors do . The MT - RJ connector was designed by AMP, but was later standardized as FOCIS 12 (Fiber Optic Connector Intermateability Standards) in EIA / TIA - 604 - 12 . There are two variations: pinned and no - pin . The pinned variety, which has two small stainless steel guide pins on the face of the connector, is used in patch panels to mate with the no - pin connectors on MT - RJ patch cords . </Li> <Li> MPO (Multi-fiber Push On) is a connector for ribbon cables with four to twenty - four fibers . Connectors for singlemode fiber have angled ends to minimize back - reflection, while multimode fiber versions typically have flat ends . MTP is a brand name for a version of the MPO connector with improved specifications . MTP and MPO connectors intermate . </Li> <Li> Hardened Fiber Optic Connectors (HFOCs) and Hardened Fiber Optic Adapters (HFOAs) are passive telecommunications components used in an Outside Plant (OSP) environment . They provide drop connections to customers from fiber distribution networks . These components may be provided in pedestal closures, aerial and buried closures and terminals, or equipment located at customer premises such as a Fiber Distribution Hub (FDH) or an Optical Network Terminal or Termination (ONT) unit . </Li> <Dl> <Dd> These connectors, which are field - mateable and hardened for use in the OSP, are needed to support Fiber to the Premises (FTTP) deployment and service offerings . HFOCs are designed to withstand climatic conditions existing throughout the U.S., including rain, flooding, snow, sleet, high winds, and ice and sand storms . Ambient temperatures ranging from--40 ° C (--40 ° F) to + 70 ° C (158 ° F) can be encountered . </Dd> </Dl>

What is the difference between sc and lc connector