Complied with standards of IEC51754-4, KS C6974(F04), JIS C5973(F04). Complied with standards of Telcordia GR-326-Core. Directly to connect with the terminal. Protect the splicing point inside of the connector body, no additional splicing. Enhanced high quality with improved optical features (Splice Loss & Return Loss). Easily to assemble with One-Touch System.