Indoor cables are flexible, non-gel filled cable for use in telecommunication stations for interconnection between the optical line system and the fiber distribution frame. It is also suitable for data networks. The sheath is made of PVC that has good tensile strength and tear resistance. The cable can be terminated with a wide variety of connectors. Simplex design is supplied with one tight buffered fiber (in single-mode and/or multi-mode) whereas Duplex Design is supplied with two tight buffered fibers, single-mode or multi-mode.