Fiber jumper cables are mainly used for connection in the context of optical fiber communications including applications like cable TV (CATV), inside buildings and in fiber to the home (FTTH) installations. Nowadays, optical fiber jumpers are varied in cables and connector types. It is hard to determine the differences between one fiber optic cable jumper and another. This article would put emphasis on guiding you to select the perfect fiber jumper cables from the following six perspectives.

Cable Type of Fiber Jumper Cables

Fiber jumper cables comes in two general types, singlemode and multimode optical fiber jumper. They are different in fiber diameter, classifications of fiber strands, jacket color, transmission speed and etc.

Singlemode fiber jumper cable generally has a 9 micron diameter glass fiber. There are two sub groups (referred to as OS1 and OS2) but most cable is "dual rated" to cover both classifications. Multimode optical fiber jumper can have several different diameters and classifications of fiber strands. The two diameters currently in use are 62.5 Micron and 50 Micron. Within the 50 Micron diameter multimode cable, there are three different grades (referred to as OM2, OM3, and OM4). The cable types used in the patch cord should match that of the network cabling to which they are attached via the patch panel.

Jacket Diameters

The fiber optic cable jumpers may be available in different "jacket diameters" (such as 2mm or 3mm). Thinner diameters (1.6 or 2mm) may be preferable in dense installation within a single rack since they take up less space and are more flexible. Fiber optic cable jumpers that route from rack to rack (especially via cable tray) may be more suitable if they have the thicker jacket that results in larger diameters thus making them more rigid.

Jacket Material

Flammability of the jacket material could become an issue if the area they are in has special requirements for flame spread or products of combustion in case of a fire. In these cases, optical jumpers may have to be classified as "Plenum Rated" (OFNP) rather than "Riser Rated" (OFNR).

Connector Type

See the connector type descriptions below. Some fiber jumper cables may have different connector types on each end to accommodate interconnection of devices with dissimilar connectors. In some cases, there may be a connector on only one end, and bare or unterminated fiber on the other. These are usually referred to as "pigtails" rather than "patch Cords".

Simplex or Duplex

Unlike copper patch cords which send information in both directions (having multiple pairs of conductors with which to do so), most fiber jumper cables have a single strand of fiber allowing for signal flow in one direction only.

Connecting equipment so that it can send and receive information requires two strands of fiber (one to transmit and one to receive information). This can be accommodated by using two "simplex" (single strand of fiber) cables for each equipment interconnection or a "duplex" cable, with conductors and/or connectors bonded together in pairs.

Length

Overall length of the fiber jumper cables may be specified in feet or meters, depending on your preference.

Conclusion

In this article, we mainly introduce six factors attaching to the fiber jumper cables—cable type, jacket diameters, jacket material, connector type, type of communication service as well as the length. You can select the proper patch cord you need through considering those six attributes. Hope this post is helpful for you to fully understand optical fiber jumper.

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We may quite familiar with indoor fiber optic cable, because it is an indispensable part of our daliy life. But for outdoor fiber optical cables, there are many factors needed to be considered, such as Ultraviolet, specific environment and etc. Different outdoor fiber optic cable matches for different environment. So what are they? And how they apply? This article would put emphasis on introducing the following four types of outdoor fiber optic cable, both singlemode fiber outdoor cables and multimode fiber outdoor cables are fully covered.

Aerial outdoor cable

Aerial outdoor cable is a kind of fiber optic cable, which is designed to be easier to install and faster to terminate than loose tube cables. 900-µm tight-buffered cables (one kind of aerial outdoor cable) are UL riser- and plenum-rated fiber optic patch cable, which are specially suited for duct and aerial installation points. No transition points are required at the building entrance.

The construction of this kind of fiber optic patch cord consists of color-coded buffered fibers surrounded by water-swellable aramid-strength members and a ripcord under an overall UV-resistant, flame-retardant black jacket. Bundles of six or 12 fibers are used for cables with fiber counts over 24. A water-swellable tape barrier provides additional water-blocking to protect the interstices from axial moisture migrations. Cables are available with fiber counts ranging from 6 to 48. Distribution cables include a selection of 62.5/125 µm and 50/125 µm multimode outdoor cables cables and singlemode outdoor cables enhanced.

Dry water-blocking outdoor cables

Being exploited by a dry water-blocking technology, dry water-blocking outdoor cables are designed to withstand harsh outdoor conditions. This kind of fiber optic cable is suitable for use within buildings, for outdoor installations or transitional aerial and duct applications, and for entrance facilities that require riser- or plenum-rated cable. An all-dielectric construction requires no grounding or bonding, while an armored cable construction has interlocking aluminum armor that eliminates the need for innerduct or conduit. The RoHS-compliant cable is available in singlemode (meets OS1 and proposed OS2 standards) and multimode (OM1, OM2, and10-Gbits/sec laser optimized OM3) types, and in fiber counts up to 144. This kind of fiber optic patch cable is an optimal choice under harsh environment.

Plenum outdoor cables

Plenum outdoor cables are flame-retardant and suitable for aerial, duct, riser and plenum installations. No transition splice is required when entering the building from a dedicated outside plant cable. Part of the company's LANs solutions, these cables feature 250-µm color-coded fibers for simplified identification during installation. The loose tube design provides mechanical and environment durability, and the cable's all-dielectric construction requires no grounding or bonding. This kind of fiber optic cable is available with 12 to 60 fibers and in 62.5- and 50-µm (including laser-optimized) and singlemode fiber outdoor versions, along with a flexible, flame-retardant, UV-resistant jacket.

Outdoor cable for factory

Featuring a proprietary pressure-extruded (core-locked) tightly bound outer jacket that firmly binds all fibers together so that the cable moves as a solid, rope-like unit, these tight-buffered cables are suited for industrial applications. This kind of fiber optic cable is designed with flex resistance of thousands of cycles, crush resistance of 2200 N/cm, the ability to withstand 1,000 impacts, and tensile load rating exceeding a ton. They are also constructed to withstand caustic and volatile chemicals, excessive moisture and fungus, UV exposure, and operating temperatures ranging from -55to 124. They are perfect options for factory environment.

Oznake: fiber optic cable, single mode fiber outdoor, fiber optic patch cord, fiber optic patch cables