Some Notes Of Buying Fiber Pigtails

In any fiber optic cable installation, the way the cables are attached to the system–is vital to the success of the telecommunications network. If done well, the connection allows optical signals to pass with low attenuation and little return loss. One of the proven ways to join optical fibers is with a fiber pigtail–a fiber cable with a installed connector on one end and unterminated fiber on the other end.

Pigtails are basically cable assemblies. Ninety-nine percent of singlemode applications use pigtails, also used in many multimode applications. One of the benefits of using pigtail is lower labor costs. The end of the pigtail is stripped back and fusion spliced to another single fiber. This is done easy in field with a multi-fiber trunk to break out the multi-fibers cable into its component for connection to the end equipment. Installers working with singlemode fiber typically have access to a fusion splicer–an expensive piece of equipment that costs $6000 to $30,000 or more. With a fusion splicer you just splice the pigtail right onto the cable in a minute or less.

Pigtails bridge a critical junction in the fiber-optic network. Pigtails consist of–a connector, a ferrule, standard fiber and jacket types, including singlemode and multimode varieties. The most important element you should know is that the quality of the connector itself. You need to know certain characteristics, such as insertion loss, the type of polish used and how well the connector is terminated to the cable. As fiber cable termination is the addition of connectors to each optical fiber in a cable. The fibers need to have connectors fitted before they can attach to other equipment. Two common solutions for fiber cable termination are pigtails and fanout kits or breakout kits.

Ferrule material, whether zirconia ceramic, plastic or stainless steel, must also be specified when buying a pigtail. If you go with a metal ferrule, it is a waste for any singlemode application.

The length of the pigtail is another element that must be specified. The extra slack allows for splicing errors to be corrected, without it, you may have to start with another pigtail.

Pigtails can have female connectors and be mounted in a wall mount or patch panel, often in pairs although single-fiber solutions exist, to allow them to be connected to endpoints or other fiber runs with patch cables. Alternatively they can have male connectors and plug directly into an optical device. Pigtails are different from patch cords, as both ends with connectors, like common patch cord LC-LC.

Testing a pigtail in the field is not easy. The unterminated end is difficult to check until the pigtail is actually spliced to the equipment.
Quality is typically high because the connectorized end is attached in a controlled environment–FiberStore. FiberStore can make singlemode pigtails more accurately than a field termination can be done.

Fiber Optic Pigtails

Cable types include copper and fiber. Copper cable is a group of insulated conductors enclosed within a common jacket while fiber optic cable refers to one or more optical fibers enclosed within a protective covering and material to provide strength. Cable assembly is a cable that has connectors installed on one or both ends. If connectors are attached to only one end of the cable, it is a pigtail. If its connectors are attached to both ends, it is known as a fiber jumper & fiber patch cable. General use of these cable assemblies includes the interconnection of multimode and single-mode fiber optic cable systems and optical electronic equipment.

FS is the professional supplier of fiber pigtails SC, SC/APC, ST, ST/APC, FC, FC/APC, LC, LC/APC, MT-RJ, MPO, MTP, E2000, E2000/APC, bunch/ribbon/bundle fan out fiber optic pigtails. Fiber optic pigtail is used to splice outside plant cable to the backside of a fiber optic patch panel.

Generally speaking, pigtail fiber optic cable is a fiber end with a connector factory-attached for future splicing into a system. It starts as a manufactured patch cord or jumper with a connector at each end. Then you can cut the jumper in half and have two pigtails ready to splice. Pigtails are available with a variety of connectors, depending on your needs. These products have advantages over field terminations because the connectors are factory-installed and polished to exacting standards. By this way to save time over attaching a connector to the end of an optical fiber, and it typically produces a better connection. They are especially useful in situations where many connectors have to be added to cables in a relatively short time, or in a location where is easier to make a splice than it is to add a connector. On the downside, fiber pigtails require hardware to protect the splice and investment in a fusion or mechanical splicer, in addition to the cost of the connector and hardware itself.

Common connector type of fiber pigtails is SC, LC, FC, ST, MU, MTRJ, etc. ST pigtail connector is with metal outer body and with a long spring located ferrule hold the optical fiber. ST cable can be 9/125 single mode or 50/125 multimode or 62.5/125 multimode. ST fiber pigtails connector ferrule interface can be PC, UPC or APC.

Besides, FS supply various kinds of fan out pigtails, include ribbon, bunch, bundle fan out fiber pigtails. Fanout fiber pigtail is designed for easy connectorization. The break out cables can be 3mm outer diameter or 0.9mm outer diameter, the break out part of the pigtail can be with break out kits or with heat shrinkable tubes, and the cable length can be customized to fit for your special needs.

FS also offer the armored and waterproof fiber optic pigtail, they are produced strictly according to IEC standards, the products feature low insertion loss, high return loss, good interchangeability and repeat push-pull performance, which make them easy to use.

How To Classify Fiber Optic Pigtails

Fiber optic pigtail can be considered as fiber optics patch cords. It comprises a fiber patch connector as well as an optical fiber cable. A fiber patch cable can be divided into two pigtails. Typical applications of fiber pigtail would be to link the fiber optic cable with fiber optic equipment. The connector side is used to link the gear, while the other part is melted together with the other fiber optic cable. By melting together the fiber glasses, it can reach the absolute minimum insertion loss.

Fiber optic pigtail has a number of different interfaces as well as different coupler. Common kinds of fiber optic pigtails are often with 0.9mm fiber cable diameter, and usually installed inside ODF unit. Based on the transfer mode, the fiber connector and the end face type, it can be classified to various kinds.

1) According to the transfer mode, fiber optic pigtails can be divied into Single-mode (sheath color is generally yellow) and Multi-mode (jacket color is usually orange). Single-mode fiber pigtail includes single mode fiber optic cable and terminated with single mode fiber optic connectors at the ends. Multimode fiber pigtail consists of multimode fiber optic cable and terminated with multimode fiber optic connectors at the ends. Obviously, there will be other colors, but many are of both of these colors.

2) According to the fiber connector, there are SC, LC, FC, ST, MTRJ, MU and so on.
The SC pigtail is compliant to IEC, TIA/EIA, NTT and JIS specifications. It is with one piece construction and pulls proof design. SC is inexpensive but high performance, which makes it one of the most popular cables.
The LC pigtail features the RJ-45 style interface with low insertion loss and occasional back reflection; it’s with high precision alignment and is widely used all over the world. It is with zirconia ceramic ferrule. The same time frame, the LC pigtail switch could be connected directly, without a coupler, When pigtail Connect one end from the cable, if you want to protect ought to be used in terminal box, and also the terminal box the best selection out pigtails box directly.
The FC fiber optic pigtail is compliant to IEC, TIA/EIA, NTT and JIS specifications. The FC connector is by using PC, UPC, APC versions. Both single mode and multimode versions have a zirconia ceramic ferrule.
The ST fiber optic pigtail is with metal outer body and with a long spring loaded ferrule contain the optical fiber. ST Cable could be 9/125 single mode or 50/125 multimode or 62.5/125 multimode. ST fiber pigtails connector ferrule interface could be PC, UPC or APC.
The MU fiber optic pigtail is NTT and JIS compliant. It is with tunable zirconia connector ferrule and features the little size, optical and mechanism performance is comparable because the SC. This pigtail has zirconia ceramic ferrule.
The MTRJ pigtail cable end is made of a duplex precision molded MT feruled connector. The MTRJ is by using duplex plastic ferrule and compliant to TIA/EIA 568-A. MTRJ is really a plastic ferrule connector pigtail.

3) Based on the end face type, fiber optic pigtails can be divided into UPC and APC versions. Most commonly used types are SC/APC pigtail, FC/APC pigtail and MU/UPC pigtail.

As the key of fiber optic products manufacturer, FIBERSTORE supplies just about all types of fiber optic pigtail and MPO fiber, not only the most popular versions, but the waterproof fiber pigtails and armored fiber pigtails. They are produced strictly based on IEC standards, and have low insertion loss, high return loss, good interchangeability and repeat push-pull performance, which will make them easy to use.