![]() Up to 24 individual strands can be manufactured loosely, and after that point they are usually sectioned into tubes containing 12 each. Optical fiber cable is separated into strands, which are the individual fibers within the larger piece of cabling. The differences in colors are based upon different levels of OM and OS fiber (Optical Multimode & Optical Singlemode). The colors don't only apply for the application though, they also are meant to be of use in determining a cables properties. These color codes are set by the EIA/TIA-598 standards guide identification for fiber and fiber related units that determines which color codes are used in which applications. Similar to the color coding designations of copper cabling, optical fiber has a color code designation for strands of fiber within the larger cable, as well as the cable's jacket. In addition, color-coding of connectors for different fiber standards make it easy to avoid confusion. The buffer or jacket on patchcords is often color-coded to indicate the type of fiber used. The connector's inserted core cover conforms to APC (Typical back reflection <-60dB), UPC (Typical back reflection <-50dB), or PC (Typical back reflection <-40dB) configuration. Typical back reflection grades are -30dB, -40dB, -50dB and -60dB. This is particularly important in single mode applications. Some of the most common patch cable configurations include FC-FC, FC-SC, FC-LC, FC-ST, ST-LC, SC-SC, and SC-ST.Ĭonstruction of the Connector's Inserted Core Coverįiber optic connectors are designed and polished to different shapes to minimize back reflection. ![]() Fiber optic patch cables are classified by the connectors on either end of themselves. Each fiber is marked “A” or “B” or different colored connector boots are used to mark polarity.Ĭonnector design standards include FC, SC, ST, LC, MTRJ, MPO, MU, SMA, FDDI, E2000, DIN4, and D4. ![]() The former has one fiber and one connector on each end while the latter has two fibers and two connectors on each end. According to the fiber optic cable structure, fiber optic patch cables include simplex fiber optic patch cable and duplex fiber optic patch cable. It is usually orange or grey, with a cream or black connector, and a shorter transmission distance. ![]() Multimode fiber patch cables use 62.5/125 micron or 50/125 micron bulk multimode fiber cable and terminated with multimode fiber optic connectors at both ends. Singlemode fiber patch cable is generally yellow with a blue connector and a longer transmission distance. Singlemode fiber patch cables use 9/125 micron bulk single mode fiber cable and single mode fiber optic connectors at both ends. In general, fiber optic patch cables are classified by fiber cable mode or cable structure, by connector construction and by construction of the connector's inserted core cover.Īccording to the fiber cable mode, fiber optic patch cables are divided into two common types - Singlemode fiber patch cable and Multimode fiber patch cable. Fiber optic patch cable, is also known as fiber optic jumper or fiber optic patch cord which is composed of a fiber optic cable terminated with different connectors on the ends.įiber optic patch cable is used to cross-connect installed cables and connect communications equipment to the cable plant.It is a very important component of the network. ![]()
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