FTTH Project outdoor and indoor cables

Fiber optical cables summary

Fiber Projects

   FTTH networks require many different kinds of fiber optic cables, because such networks cover indoor and outdoor sections, but also the transition in between. To fulfil these requirements outdoor, indoor-outdoor as well as indoor fiber cable designs are necessary.

FOT Cable Center

FOT Cable Factory

FOT Fiber Cable Center

  To address general requirements of fire protection set by law or customers a jacket is mandatory. The best suited the FOT cables grade is chosen according to the local requirements and fire test specifications to ensure the requested fire protection level.

Indoor Fiber Optic Cable (FOT Blog)

Indoor Fiber Optic Cable (FOT Blog)

  FOT optical cables both suited for indoor and outdoor FTTH projects. Especially, where their capability to withstand bends with exceptional low radius without increase in attenuation is highly appreciated and offers superior advantages compared to standard SM fibers, since installation routes of indoor cables frequently pass areas where small bends occur, like around edges and corners. As an additional advantage the possible small bend radius allows reduced size connection equipment, like quite small splice closures and termination boxes.

Cable GYTA53

Not afraid of mice anymore!

Cable Design

  For FTTH networks as described above no cable design is dedicated or preferred, neither for subscriber drop nor for indoor cables. Different approaches are suitable like central, loose or tight buffer tube constructions. Optional cable elements are tapes or yarns which may carry waterproof materials in case a dry design is desired. Possible other cable elements are strength members or copper conductors. The design is finally completed with a fire prevention sheath.

  “Not afraid of mice anymore!!”

  For example, FOT GYTA53 FOT Fiber Optic Cable(Portfolio above), special tube filling compound ensure protection of fiber.

FTTH Drop Cable

  The structure is 1-24 colored fibers combined with two FRP(or steel wires),which can protect the fiber inside by providing sufficient tensile strength and good resistance to lateral crushing. Applications for indoor horizontal , vertical cabling ,indoor cable cabling under carpet and along corner.

color code for fibers 1-24 colored plastic tubes

color code for fibers 1-24 colored plastic tubes

Break out fiber cable
  Dry tight designs with one or two fibers are dedicated to subscriber indoor branching. Therefore, such cables are mainly installed on-wall by stapling or gluing. The single fiber cable is a 2.8 mm diameter construction, the cable with two fibers a 4.2 mm diameter construction. Both are based on 900 um tight buffered fibers. In such a design the fiber is decoupled from the 900 mm buffer tube. This tight construction guarantees easy end-access of the optical fibers over one meter in less than a minute.

break out fiber cable

break out fiber cable

Fiber Optic Cable construction
  When there is a need to get many fibers to several distribution points or separate flats in different floors of a building, a riser design is chosen for the vertical installation. This cable has really low weight and size, something very important for a riser application. However, its main advantage in this case is the ability to segregate one or more bundles of fibers per flat, just by opening small windows of approximately 5 cm in length in the outer jacket. This could also allow termination of several fibers in a distribution box of a floor. The riser cable carries a maximum of 144 optical fibers with several small semi-tight buffer tubes made of asoft material. These modules are loosely placed into the cable center, surrounded by some aramid yarns as strength elements.

Duplex FOT Cable
  Basically, the FOT cable consists of 2 patchcords of 2.8mm outer diameter each. Each one is made of 900µm tight buffered tube surrounded by aramid yarns and a LSZH/PVC jacket. 

Duplex Round Indoor Cable

Duplex Round Indoor Cable

  Different types of FTTH subscriber drop, indoor and riser cables were successfully developed. The presented cables offer a general range of FTTH cables, covering subscriber drop cables, indoor, indoor/outdoor applications as well as customized cables.

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4 Comments
  1. Very good introductory note for new people in fiber optic cable industry. Thanks Mike for sharing in Twitter.

    • Thanks Jay. Glad to know you are interested, welcome to share your ideas regarding to this topic anytime. Regards.

  2. I would like to purchase ONT MODEM

    • Thanks B.Vessali, glad to know you are interested.
      Our team has already contacted you with details via email.
      Any more questions please let us know.

      Best Wishes and Regards.

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