Tight-buffered distribution cable is made of 900µm buffered fibers in a variety of constructions. Aramid or e-glass yarns are utilized to provide strength and to protect the fibers inside. According to different application requirements, these cables can be manufactured with different jackets such as LSZH (Low Smoke Zero Halogen) and PVC jackets. And they are available in numbers of applications, including horizontal distribution, backbone and riser applications, patch cords, rack to rack links in equipment rooms and short run external inter-building links. This article intends to give a simple introduction to the applications of different types of tight-buffered distribution cable.
When it comes to deploying cables for indoor applications, the important factor that should be considered is flame ratings. Riser (OFNR) tight-buffered distribution cable is ideal for indoor applications. Its tight-bound, tight-buffered design allows cables to be installed in inter-building backbone and inter-building campus locations without costly transitions between cable types. Complaint with ANSI/UL 1666-1997, they are deployed to effectively prevent the spread of fire from floor to floor in a building when there is a fire. But OFNR cables cannot be installed in plenum areas since they do not have the required fire and smoking rating as plenum rated cables which have good flame-retardant ability.
As we all know, fiber optic cable is fragile and easy to get damage, especially in harsh environments. Armored LSZH tight-buffered distribution cable consists of tight buffer fiber, glass yarn strength member, corrugated steel tape armor and a double LSZH jacket being of UV stabilized, water and moisture resistant. Because of its solid construction, armored LSZH tight-buffered distribution cable is a good choice for LAN backbones, direct burial, ducts, under floor or ceiling spaces.
Armored plenum tight-buffered distribution cable is placed in a flexible metal tube, which is filled with aramid yarn strength members within inner jacket for ensuring excellent tensile strength and flexibility. Over the tube, there are aramid yarns and outer jacket to provide crucial protection for fiber. These cables is an ideal solution for indoor or outdoor applications in customer premises, central offices and in harsh environments.
Apart from the cable types mentioned above, now there are various kinds of tight-buffered distribution cables in the market to meet different application requirements. How to choose a suitable one to optimize a connection performance? Here are some considerations for you.
Different cables have different suited working areas. Their characteristics determine where they can be used. For example, as we have mentioned above, when choosing the right tight-buffered distribution cables for indoor applications, flame ratings need to be taken into account. Plenum has the highest flame rating, which suits for air handing spaces. While riser has middle flame rating, which is suitable for vertical cable runs.
Generally, fiber type includes OS2, OM1, OM2, OM3 and OM4 to meet different applications of single-mode or multimode cabling. Fiber counts are also should be considered once the fiber type is determined. There are available fiber counts from 1 to 24 fibers. Of course, some manufacturers also offer customized services.
Tight-buffered distribution cables are designed with different specifications to meet diverse indoor or outdoor applications. For instance, because the inside fibers are not individually reinforced, unitized tight-buffered distribution cable is often terminated into a fiber enclosure to protect inside fibers. While the non-unitized one usually used as pigtails and jumpers because of its softness and easy-to-peel.
Tight-buffered distribution cables are suitable for indoor and outdoor cable runs. By adding armor, they also can provide protection for fibers from water or other harsh conditions. What’s more, they are easy to prepare for termination and offer more flexibility for cabling. FS.COM provides a wide range of tight-buffered cables that can satisfy diverse indoor and outdoor application demands and requirements. If you want to know more details, please kindly contact us via email@example.com.
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