Tight-Buffered Distribution Cable Selection Guide

Tight-Buffered Distribution Cable Selection Guide

Posted on by FS.COM

Tight-buffered distribution cable consists of several tight-buffered fibers consolidated in a single cable. It is usually used in backbone subsystems, linking equipment rooms, telecommunications rooms and outlets. According to different application environments and requirements, there are various types of tight-buffered distribution cables available in the market. This post intends to give a selection guide for tight-buffered distribution cables.

Choose Application Space

Tight-buffered distribution cable is ideally suited for indoor-cable runs. But it is also available to use for indoor/outdoor applications by adding some specific cable characteristics (will introduce in details in section 3). When choosing the tight-buffered distribution cable for indoor application, we should consider the flame ratings that are governed by the NEC (National Electric Code). Flame ratings generally include plenum, riser, general, etc., as shown in the following picture:

flame ratings

Among these different rating cables, plenum can also be used in riser and general space. Riser cable is also used in general space. But the higher the rating, the more expensive it costs. Thus, users can choose the relevant rating or higher rating cable according to their application space and budget.

Choose Fiber Type & Fiber Count

Fiber type and fiber count are two main factors that should be considered when choose tight-buffered distribution cables. Fiber type generally includes OS2 9/125 SMF, OM1 62.5/125 MMF, OM2 50/125 MMF, 10G OM3 50/125 MMF, 10G OM4 50/125 MMF which meet the applications of single-mode, multi-mode and 10G multimode fiber cabling. Once the fiber type is determined, to choose a proper fiber count is also important. Fiber counts are generally available in 1 fiber to 24 fibers, sometimes can be larger than 24 fibers. 2, 6, 12, 24 fibers are the most commonly used fiber counts in today’s network backbone cabling. The fiber count should be sized to deliver present and future applications.

fiber counts & type types

Choose Cable Characteristics

Sometimes, in order to meet the requirements of harsh indoor/outdoor environment or installation & management, tight-buffered distribution cable is designed with some specific characteristics, as mentioned above. For instance, armored layer is added to the tight-buffered distribution cable to prevent cable from moisture and rodent chewing. Popular armored types include interlocking armored and corrugated steel tape. Unitized tight-buffered distribution cable is preferred to use as it can make the bundled fibers easier to install and manage. Thus, users can choose the characteristics—armored or non-armored; unitized or non-unitized depending on their requirements.

armored tight-buffered distribution cable


unitized & nonunitized cable

FS.COM Product Solution for Tight-Buffered Distribution Cables

FS.COM offers a wide range options on high-quality tight-buffered distribution cables which can meet your demands on indoor or indoor/outdoor applications. In addition, in order to shorten the delivery time and better satisfy our customers’ requirements, a new inventory of tight-buffered fiber cables (as shown below) is soon coming in FS.COM’s USA local warehouse and accepting for reservation now. Once the inventory arrived, you can enjoy same-day shipping from United States and get your order as soon as possible.

Tight-Buffered Distribution Cable Part ID Description

Fs distribution-cables.jpg

31909 12 Fibers Multimode 50/125 OM3, Plenum, FRP Strength Member, Non-unitized, Tight-Buffered Distribution Indoor Fiber Optical Cable GJPFJV
31922 12 Fibers Multimode 50/125 OM4, Plenum, FRP Strength Member, Non-unitized, Tight-Buffered Distribution Indoor Fiber Optical Cable GJPFJV
31866 24 Fibers Multimode 50/125 OM4, Riser, FRP Strength Member, Non-unitized, Tight-Buffered Distribution Indoor Fiber Optical Cable GJPFJV
Armored Tight Buffered LSZH Cable

Fs armored.jpg

51308 24 Fibers Singlemode 9/125 OS2, LSZH, Single-Armored Double-Jacket, Tight Buffered Distribution Waterproof Indoor/Outdoor Cable GJFZY53

For more details, please contact us over sales@fs.com or call customer service: +1 (718) 577 1006.

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