Duplex cable consists of two fibers, usually in a zipcord (side-by-side) style. Multimode and Singlemode duplex fiber optic cables are used for two-way data transfers. As we know, duplex fiber optic cable is most often used for duplex communication between devices where a separate transmit and receive are required, for example, larger workstations, switches, servers, and major networking hardware tends to require duplex fiber optic cable. Now duplex fiber cables from Fiber focc are available in single mode duplex fiber and multimode duplex fiber. Our duplex fiber optic cable feature the good performance and superior construction.  we can supply PVC  LSZH OFNZ types。