Internet usage and new mobile services are creating an enormous demand for bandwidth.However, the weakest link in the chain is the "last mile"which provides access to the subscriber.It is here where bottlenecks occur mainly due to low speed transmission.
We have different variants of cables,according to the different modes of installation depending of their use:Indoor,Indoor/Outdoor,Outdoor cable aerial.Beyond these basic configurations,fiber optic cables can take many forms here is a look at some of the most common:
simplex and zip cord cables consist of one or two fibers that have been tight buffered and Kelar-reinforced and jacketed.Such cables are used mostly for Fiber Optic Patch Cord and backplane applications.
Tightpack cables, also known as distribution cables, are made up of several tight-buffered fibers bundled under the same jacket with Kelar reinforcement.These cables are small in size, but because their fibers are not individually reinforced, they need to be terminated inside a patch panel or junction box.They are generally used for short, dry conduit runs as well as riser and plenum applications.
breakout cables are made of several simplex units, cabled together to produce a strong, rugged design suitable for conduit runs and riser and plenum applications.Because each fiber is individually reinforced,The LC To LC Fiber Patch Cable allows for a strong termination to connectors and can be rought directly to a computer back plane.Breakout cables are larger and more expensive than tight pack cables.
LC To SC Fiber Cable is considered ideal for outside plant trunking applications.Depending on the actual construction, they can be used in conduits, stung overhead, or buried directly into the ground.
Composite cables are those that contain a number of copper conductors in the same cable assembly as optical fibers.Be careful of the terminology there prior to 1993 NEC,such cables were known as hybrid cables,but today that term typically refers to cables that contain only optical fibers but both multimode and LC To LC Single Mode Fiber Cable.
those are different types of cables most commonly used, but there is another kind of division.Cables are designed for being used with or without ducts, so,another way to define them is the following.
In addition there is aerial cables, but is not used in the access network.Currently each manufacturer has its particular family of cables.Lately,some factories are working hard to provide ribbon cables fiber.Ribbon, are cables in which many fibres are embedded in a plastic material in parallel forming a flat ribbon-like structure.Although there is no definite standard for this type of cable, the advantages will become a good solution for the access networks.It is expected to be one of the most important and used cable for fiber to the home.
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