Fiber Optic Cable network Applications
There are four major types of fiber connectors: Straight (ST)，straight connection (SC)，medium interface connector (MIC)，and submarine type A (SMA).General，The fiber optic patch cord is composed of a fiber optic cable terminated with different connectors on the ends.Such as the LC LC Fiber Patch Cord has LC connector at the ends. ST is often used for interconnections between individual fibres and optical devices,when joining optical fibers, a SC connector may be used,This connector consists of connections for two fibers;one for receiving and the other for sending.MIC connectors are one-piece connectors similar to the SC used to connect both the transmit and the receive fibers, it is primarily used with the fiber distributed data interface(FDDI) protocol.As for the ST connector,SMA uses in dividual connectors for each fiber,the major difference is that SMA uses either a straight or a stepped ferrule in order to ensure precise fit,whereas the ST connector uses a bayonet twist -lock connection.In addition ,the LC-SC Patch Cord has SC connectors on one end, LC connectors on the other.
The major differences between fiber optic and other cable types are fiber optic long -distance cable runs and high bandwidth.Usually, the fiber optic cable divided into single-mode fiber and multimode fiber. Single-mode fiber operates to a long transmission distance; however, multi-mode fiber is a short transmission distance.The key features for LC-LC Single Mode Patch Cord are that has lc lc connector and complete with orange OFNR rated jacket.The maximum fiber length for the 100BaseFX Ethernet standard is 2000 Mbps. There specifications easily exceed other cable specifications.The potential of fiber optic cable is restricted to the technology that exists today.
There are applications where fiber optic is needed not for its high bandwidth but to facilitate long cable lengths or to block unwanted electrical interference.For example,the 100 BaseFX specification supports the use of fiber optic cable.With the exception is compatible with the use of fiber optic cable.With the exception of distance, the other specifications for 100Base FX are essentially the same as that described for UTP cabling.Token ring also has a cable specification for the use of fiber optic for connecting its MAUs.Again, this does not fully utilize fiber optic's full bandwidth potential,but it allows for longer cable runs.
Fiber optic applications do not stop at 100 Mbps，Gigabit Ethernet,100 Base LX and 100 baseSX, each sport bandwidths of 100 Mbps.The major difference in these two standards is the kind of laser used.1000BaseLX uses a long -wavelength laser that can transmit a signal over 5000m of fiber in full-duplex mode.A short-wavelength laser is used in 1000BaseSX applications,which support a maximum cable length of 550 m and 2000 Mbps bandwidth in full-duplex mode.
The only thing holding fiber optic transmission rates at bay is the devices used to drive the signals though the fibers,As noted at the beginning of this section,the potential of fiber optic media is truly grand,Currently the primary application for fiber cabling is for long connections and network backbones.There are some limited applications of direct connections between individual computers and hubs,but many people feel that this will increase over times as the cost continues to decrease and installation of fiber becomes easier.
