The most common types are simplex, duplex and multiport patch cords. Simplex patch cords have one fiber and are used in one-way data transmission. Used to connect optical transceivers ↔ transceivers, switches ↔ patch panels, or cross-connect panels. These patch cables are typically used for connections in data centers or between racks to connect fiber optic. How to Select the Right Patch Cord – Simple Checklist When you send an inquiry to ZION, we recommend preparing these points: LC, SC, FC, ST, MPO/MTP. Same connector both ends or hybrid (e. LC–SC)? Data center, office, public building, riser, plenum, outdoor? Choose PVC / LSZH / OFNR / OFNP /. Fiber patch cables, also called fiber-optic patch cords, are cables typically containing one or two optical fibers, which are equipped with standardized fiber connectors on both ends.