Tag Archives: fiber optic patch cables

10G Cabling Solution: SFP+ Transceiver, SFP+ Twinaxial Cable or Cat6 Copper Cable?


When you’ve selected the server, storage and switch to setup your data center, then how do you connect it all together? There’s no doubt that the answer is “with cables.” Let’s look at the three most common cables that used to connect the servers and storage to switches in a 10G network. They are SFP+ transceiver (used with patch cable), SFP+ twinaxial cable and Cat6 copper cable. Which one should you choose? Let’s find the answer together!

10G Cabling Solution

SFP+ Transceiver
This connection methods requires two things on each device: 10G pluggable SFP+ transceivers and fiber optic patch cables. Once these are in place on both devices (server and switch), you can plug the patch cords into the transceiver on both sides. These SFP+ optical transceivers use approximately 1 W per transceiver and have a latency of less than 0.1 microsecond. SFP+ transceivers come in different types to drive signals across fiber optic cables with different maximum distances. The most common, and lowest in cost, is 10GBase-SR, which can span 300 meters. Other types can reach as far as 100 kilometers.

SFP+ transceivers

Pros: This connectivity method supports fiber cables that are really long, allowing you to connect a server at one end of a data center to a switch several racks away or even at the other end.
Cons: Pluggable transceiver parts are quite expensive.

SFP+ Twinaxial Cable
SFP+ twinaxial direct attach cable (DAC) integrates transceivers with twinax cables into an energy efficient, low-cost, and low-latency solution. It features SFP+ connectors on both ends, thus eliminating the need for expensive SFP+ transceivers. SFP+ twinaxial cables use only 1.5 watts of power per port and introduce only approximately 0.25 microsecond of latency per link. This makes it an optimal solution for handling high bandwidth transmission within short distances such as inside energy-efficient data centers.

SFP+ Twinaxial Cable

Pros: Lower latency, lower power and lower heat.
Cons: Transmission distance is usually less than 10 meter.

10GBASE-T: Cat6 Copper Cable
This option probably looks familiar – like the RJ-45 ports and cabling you use to connect your laptop to a normal network jack. The difference is that you need specialized network adapters with ports that support faster 10G throughput. Cat6 cables have more individual copper wires, twisted tighter, with better shielding to prevent outside signal interference. They cost more than CAT5 but ensure better signal communication, which is a requirement to speed up to 10G. Cat6 copper cables use 5 watts of power per port and introduce approximately c of latency per link, which is much higher than SFP+ optics and SFP+.

10GBASE-T structured-cabling

Pros: Longer distance – 100 meters. Backward compatibility to 1 gigabit Ethernet or 100 megabit Ethernet
Cons: Higher latency, higher power and higher heat. Not many data center switches support 10GBASE-T ports.

Vita differences of these three 10G cabling solutions are displayed in the table below. According to your demands to choose the right one.

Name Transmission Distance Latency Power
SFP+ Transceiver 300 m – 100 km 0.1 microsecond 1 watts
SFP+ Twinaxial Cable 10 m 0.25 microsecond 1.5 watts
Cat6 Copper Cable 100 m 2.6 microsecond 4 – 6 watts

Data Center Patch Cords Organized

The benefit of having neat and organized cabling obviously applies to patch cords as much as structured cabling. When you go beyond green considerations, it can be argued that it’s more important to have neat patch cords than structured cabling. Data Center users typically interact with a patching field when installing or servicing hardware rather than structured cabling. Patching fields can be more challenging to maintain in some server environments, however, due to frequent hardware changes and sometimes minimal management of how patches are run.

You can follow several strategies to keep Data Center patch cords organized, thereby improving airflow to equipment, reducing energy consumption of your cooling infrastructure, and easing troubleshooting. (Not to mention maintaining the professional appearance of your Data Center.)

■ Employ a distributed cabling hierarchy: Already mentioned as beneficial for structured cabling, this approach can help with Fiber Optic Patch Cables as well. Having Data Center networking patch fields divided into smaller segments around the Data Center mitigates cabling density and potentially improves airflow to the associated networking equipment.
■ Right-size port counts: Planning the correct number of ports in your Data Center – and reserving space for future expansion of patch fields – helps avoid messy cabling. Installing too many ports can result in unnecessarily large cable bundles; installing too few can trigger picemeal cabling additions in the future that fit awkwardly with the original cabling infrastructure.
■ Use ample wire management: However many connections you install in your network patching fields, be sure to include sufficient vertical and horizontal wire management to handle the maximum quantity of patch cords you plan for. This is of particular importance for some Category 6A patch cords because of their increased outsied cable diameters and soild copper core wire construction. This type of cord promotes a cable memory that can be increasingly difficult to manage as the number of patch cords multiply.
■ Prepatch networking connections: Hardware density in modern Data Centers can involve thousands of cable connections in a single server row. Prepatching networking devices and patch fields all together, before servers are installed, helps ensure that cabling is routed neatly.
■ Provide patch cords in different length – and use them: Stock commonly used types of patch cords in your Data Center in multiple lengths so that whoeer install your hardware can make a neat connection between devices and patching fields. That means correctly routing cabling through the available wire management rather than making a straight-line connection that blocks access to hardware or patch panels. It also means choosing the right length of cable length, so there is no slack to be either coiled up and hidden in the wire management system or left hanging at the end of a connection.

Implementing these cabling practices, first when designing a new Data Center and then when operating, doesn’t just make the facility greener by improving airlow and conserving cabling material, it also makes it easier to use and less prone to accidental down-time.

Fiberstore manufactures and stocks fiber optic patch cables. Our stock cables feature FC/PC, FC/APC, and SMA connectors, and use single mode (SM), polarization-maintaining (PM), or multimode (MM) fiber. Buy LC fiber  optic cable series, same day shipping to your countyre now. We offer ar-coated cables for fiber-to-free space use, lightweight cables for optogenetics, high-power cables, and many other specialty fiber patch cables from stock. We also offer multimode fiber bundles, as well as custom patch cables with 24 hour turnaround on many orders. If you do not see a stock cable that is suitable for your application, please contact us.

Related Article:  Which Patch Cable Should I Choose for My Optical Transceiver?

The Specific Instructions of Optical Fiber Patch Cord

Optical fiber communication refers to modulate voice, video and data signals to the optical fiber as a communication transmission medium. Optical fiber can be divide into multimode fiber and single mode fiber.

The central glass core of single-mode fiber is fine (core diameter is usually 9 or 10μm), it only can transfer one mode light. The mode dispersion is small, and it is for remote communication, but it plays a major role in the chromatic dispersion, so that the spectral width of the single mode fiber has a higher light stability and the requirement that the spectral width is narrower and better stability. 1000 Mb/s fiber optic transmission distance is 550m-100km. As we all know, we commonly see 9/125μm single mode fiber patch cable in the market. And Single-mode 9/125um Fiber Optic Patch Cables are recommended for Fast, Gigabit, 10G Ethernet or SONET OC3-OC192 rate optical connections. Low prices make the 9/125um fiber attractive for in-building projects too, because of the reliability and choice of using a single-strand of fiber for same communications (simplex cords are used on Bi-Directional data links).

The central glass core of Multimode fiber is coarse (50 or 62.5μm), multiple modes of light can pass. However, its mode dispersion is among large, which limits the frequency of the transmitted digital signal, and with the increase in distance will be more severe. Multi-mode fiber transmission distance is relatively recent, generally only a few kilometers. 1000 Mb/s fiber optic transmission distance is 220m-550m. In general, we can find 62.5/125um Multi-mode fiber optic cable in the market. 62.5/125um Multimode Fiber Cables are recommended for Fast Ethernet and up to OC3/STM1 rate optical connections. They can also be used for Gigabit Ethernet multi-mode connections on distances less than 275 meters. 62.5/125um fiber is most used inside buildings.

In the network wiring, the more applications optic fiber has three types, there are 62.5μm/125μm multimode fiber, 50μm/125μm multimode fiber, and 9μm/125μm singlemode fiber. According to the rate and transmission distance, we can distinguish and choose single/multimode optic fiber. Tied the fiber bundle, outside has the protective housing, which is called fiber cable. According to different application environments, the cable can be divided into indoor and outdoor fiber optic cable.

Fiber refers that the fiber jumper with a desktop computer or device connected directly to facilitate the connection and manage the device. Fiber jumpers are also divided into two multimode and single-mode, which are connected with single mode and multimode fiber. Jumper for an active connection cable between the two devices without connectors (as distinguished: patch (patch cord) is one or both ends with connectors; jumper is at both ends of the cable has a fiber optic connectors, the device can be directly connected, but only one end of the fiber pigtail connector and the other end to the fiber splicing).

Fiber patch cord connector shape can be divided according to: FC, SC, ST, LC, etc. According TO ferrule grinding mode, it can be divided into: PC (plane), UPC (spherical surface), APC (8 degrees inclined plane ) and other (cable optical transceiver general requirements FC / APC connector). According to type of optical fiber, it can be divided into single-mode optical fiber, 50/125 multimode, 62.5/125 multimode and Gigabit, etc. According to the optical fiber connetor, we commonly see LC, SC fiber patch cord in the market,  the following products are LC-SC Fiber in our online store, if you have interest, you can go to our store to have a see.

LC SC Fiber

Fiber patch cord products are widely applied, it applies in communications room, fiber to the home, local area networks, fiber optic sensors, fiber optic communication systems, fiber optic transmission equipment connected, defense readiness and so on. Apply to cable television, telecommunications networks, computer networks and optical fiber test equipment. Broken down mainly used in several ways.

The Characteristics Of Singlemode and Multimode Fiber

Fiber is short for optical fiber, it is a new kind of optical waveguides, it is optical communication system that most common and most important transmission medium.

It consists of a single glass core, the cladding layer close to the core, a primary coating layer and a protective layer composed of plastic cap.(Cylindrical fiber, the core, cladding and coating layers composed of three parts.) Core and the cladding layer consists of two different optical properties of the medium constituting the medium refractive index of light than the interior of a surrounding medium high refractive index. In the periphery of the package as the cover layer of opaque material, as the light is prevented from escaping from the surface during interspersed.

Multimode Optical Fiber

When the geometry of the fiber is much larger than the wavelength of light (about lμm), optical transmission process will be a significant presence of dozens or even hundreds of transport modes, such as the fiber is called multimode Fiber Optic Patch Cables.

Due to different propagation modes having different phase propagation velocity, thus, long-distance transmission is generated through mode dispersion (after long-distance transmission delay difference is generated, resulting in the optical pulse broadening). Side mode dispersion will narrow the bandwidth of multimode fiber, the transmission capacity is reduced, and therefore, multi-mode fiber is only suitable for low speed, short-distance optical fiber communication, data communication is currently a large number of multi-mode optical fiber local area network.

Main products and application performance of multimode fiber in the following table:

Multimode Fiber
The related products about 62.5/125mm Multimode Fiber Patch Cable from fs.com, it is below:

Duplex OM1 62.5 125 Fiber Patch Cable

The product about  50/125mm OM2 Multimode Fiber

Duplex OM2 50 125 Fiber Patch Cable

Single Mode Fiber Cable

When the geometry of the fiber is small, and the wavelength of the same order as the core diameter in the range of 4-10μm, the optical fiber allows only one mode (basic mode) in which the transmission, the remaining high-order mode are all turned off, so that said Single Mode Fiber Cable. Avoid the mode dispersion single mode fiber, suitable for large-capacity long-distance transmission.

IEC 60793-2 and IEC 60793-2-50 singlemode fiber will be divided into B1.1, B1.2, B1.3, B2, B4, B5, B6 and other categories, ITU-T also G.652, G .653, G.654, G.655, G.656, G.657 and other recommendations were standardized definition and characteristics of various single-mode fiber, and each part of the GB / T 9771 with reference to IEC 60793-2-50 ITU-T G.65x series formulation.

A given type of single mode fiber, the mode field diameter by (also called effective area), the dispersion coefficient, dispersion slope, wavelength cutoff adapted to optimize the parameters, and access ways for different applications.

Key Technologies And Development of Multi-mode Optical Fiber

Corning and Lucent and other large companies proposed a “new generation of multi-mode fiber” concept to the international standardization bodies. A new generation of Multimode Fiber Patch Cable standards drafted by the International Organization for Standardization / International Electrotechnical Commission (ISO / IEC) and the Telecommunications Industry Alliance (TIA-TR42). As a new generation of multi-mode fiber transmission medium 10Gb / s Ethernet, be included in IEEE 10Git / s Ethernet standard. This article will briefly describe the new generation of multi-mode fiber critical technical information.

1.1 The Typle of New Generation of Multimode fiber

The new generation of Multimode Fiber Cable is 50/125μm, graded-index multimode fiber distribution. The number of this transmission mode Fiber Optic Cables is approximately 62.5μm multimode fiber transmission mode 1/2.5. This can effectively reduce the dispersion of the multimode fiber mode, increase the bandwidth. For 850nm wavelength, 50/125μm Multimode fiber bandwidth is 500MHz.km. Recent experiments confirmed: the use of 850nm vertical cavity surface emitting laser (VCSEL) as a light source in the 1Gb / s rate, 50μm multimode fiber core diameter standard error can be no transfer 1750m, 50μm core diameter multimode fiber can be a new generation of error-free transmission 2000m. In the 10Gb / s down, 50μm core diameter multimode fiber can transmit a new generation of 600m. A new generation of multi-mode fiber is mainly used to support high-speed Ethernet (Ethernet), Fibre Channel (FC) and fiber optic interconnection (OIF). Meanwhile at 10Gbit / s system can transmit 600m, so that it can be used for building backbone and campus backbone extraordinary distance from the middle. In the data center design, within a distance of 100m to support higher speed (40G and 100Gbits / s? Ethernet, 16G and 32Gbits / s Fibre Channel) data transmission requirements.

The related products about New Generation Multimode fiber, SMA905-ST Duplex 50/125 Dia2.5mm OM2 Multimode Fiber Patch Cable from fs.com, the products picture is below:

OM2 Multimode Fiber

The SMA-905 fiber optic patch cord, also known as FSMA connector, was one of the First fiber optic interconnect system that gained industry wide acceptance.SMA905 fiber patch cords make use of threaded connections and is still widely used for military, industrial, medical and Surgical applications and laser systems because of their low cost multimode coupling. It features simple termination and Assembly, and is TIA and IEC compliant. SMA 905 multimode connectors are available with stainless alloy or stainless steel ferrules.

1.2 A New Generation of Multi-mode Fiber Source

Traditional multimode fiber networks use light-emitting diode (LED) as light source . In low-speed network, which is an economically rational choice. However, LED is spontaneous emission light, the radiation -emitting laser is excited , the carrier lifetime is longer the former than the latter, and thus the LED modulation rate is limited , and not more than gigabit networks. Further, LED compared with a laser, the beam divergence angle, wide spectral width . After injection of multimode fiber , excite more high-order mode, the introduction of more wavelength components, so that the fiber bandwidth decreases . Fortunately 850nm vertical cavity surface emitting laser (VCSEL) not only has the advantage of these lasers, but aslo the price is basically the same with the LED. Other advantages of VCSEL are: low threshold current, may not be enlarged, driven directly by logic gates at 10Gb / s rate, get a few milliwatts of output power; emission wavelength of 850nm which does not apply to the standard single-mode fiber just for multimode fiber . At this wavelength, an inexpensive silicon detectors can be used and have a good frequency response; VCSEL another remarkable advantage is that the manufacturing process can be easily controlled distribution of the emitted light power , which is very advantageous for improving the bandwidth of MMF. It is because of these advantages, the new generation of multimode fiber standard will use 850nm VCSEL light source .

1.3 The Bandwidth Distance of New Generation Multimode Optical Fiber

By comparing the above- described laser and LED , the use of multimode fiber laser light source, the transmission bandwidth should be greatly improved. However, experimental results show that simply make the bandwidth of a laser instead of LED light source, system is not only reduced but increased. IEEE Expert Group found through research, the bandwidth of multimode fiber and the optical fiber or the injection molding state of a power distribution. The preform fabrication process, the refractive index of the fiber axis prone to depression. Done before light source LED, is overfilled launch (OFL-Over Filled Launch), all of the fiber mode ( hundreds ) are excited to bring their own part of each module power. The refractive index of the fiber center delay characteristic distortion affects only a small number of models, the relatively limited impact on the modal bandwidth of the fiber. The measured multimode fiber bandwidth for the use of LED light source system is correct. However, when a laser light source, a laser beam spot is only a few microns, the divergence angle is smaller than the LED, so that only a small number of modes excited in the center of the fiber transmission, each mode carries a large part of the power, the refractive index of the fiber center distortion affect a small number of patterns of delay characteristics, so that decreased multimode fiber bandwidth. So it can not be measured with a laser light source for multimode fiber OFL bandwidth of conventional methods.

Today a new generation of multi-mode fiber main measurement bandwidth limit die by injection method (RML-Restricted Mode Launch). In this way the measured bandwidth is called ” laser -bandwidth ” or ” modal bandwidth limit “, previously done with the LED light source measured bandwidth is called “OFL bandwidth is .” Both represent the bandwidth of multimode fiber laser and LED light source with a time of injection. August 5, 2009, TIA Standards Committee released a new generation of bandwidth distance product standard multimode fiber , 850nm laser distance -bandwidth product of 470MHz.km, 850nm OFL bandwidth of distance product of 350MHz.km, 1300nm OFL bandwidth of distance plot to 500MHz.km. Incidentally, the bandwidth from the product of the above-described generation of the multi-mode fiber is only 3dB corresponding baseband bandwidth of multimode fiber, multimode fiber does not take more than a high-frequency band -pass region is also used when the transmission signal . Today, by orthogonal frequency division multiplexing (OFDM) technology , can make good use of multimode optical fiber through a high frequency band region , under conditions of use of the same Fiber Optic Patch Cables type, transmission using high frequency band signal through region greatly improved multi-mode fiber transmission capacity.

1.4 Source Injection Method

In actual use, the multimode fiber coupled laser and the following methods:

Bias injection: In order to avoid the deterioration of these lasers is injected directly into the bandwidth MMF appears, use the mode regulator
Connection (MCP Mode Conditioning Patch Cable), the laser output is coupled into a multimode fiber. Connection-mode regulator is a short Single Mode Fiber Cable, one end of which is coupled with the laser and the other end coupled to a multimode optical fiber. SMF output spot detouring from the multimode fiber axis at a distance, allowing the deviation from the range is 17 ~ 24μm, the aim is to avoid the center of the refractive index depression, but do not deviate too far, only one group is selectively lower-order mode excitation .

Centre injection: ideal for the refractive index profile, there is no central depression MMF can be used instead of the center of the injection molding
Regulator connection. The advantage of this is that the bandwidth of the laser can effectively improve the MMF to reduce the complexity of the network system and reduce system cost, a current-mode regulator 80 to the connection of approximately U.S. $ 100. Corning launched InfiniCor CL 1000 (62.5μm core diameter) and InfiniCor CL 2000 (50μm core diameter) is Gigabit Ethernet 1300nm wavelength laser directly into the mode without adjusting the first multi-connection mode fiber.

Fiber Optic Cabling Solutions

Fiberstore’s cabling solutions are from copper medium, fiber, with its unique plastic Fiber Optic Patch Cables (POF) solutions, and has strong reliability and ese of use, and it has the following characteristics.

Firstly, from the appearance, Fiberstore cabling products is better than other similar products. Whether modular information outlet, modular information outlet or patch panel and a large number of terminals on the board, to the user’s first impression is compact and lightweight structure, moderate size (small footprint), assembly process concise and detailed, non-professional staff can easily operate.

Secondly, Fiberstore cabling products are suitable for small and medium sized cabling system planning and installation, flexible and elastic. Currently on the market for the three kinds of mainstream MDF Specification: 100 pairs, 300 pairs and 900 pairs, for some small and medium systems (especially 50 or 150 information points system) planning. It cause that the overall layout is unreasonable, wasted building space. And just to make up for this deficiency, GCI launched the 50 pairs, 200 pairs and 400 in the series patch panels, planning to meet the needs of different systems, and make more rational design, optimization, while users can also facilitate future maintenance management.

Thirdly, the most important point one, Fiberstore cabling products are more vitality. This is mainly because GCI connection terminal board perfectly match with its corresponding patch. The reasonableness of its unique design allows users to easily achieve upgrades and changes the entire wiring system rack, network connectivity changes for a variety of system applications, and heterogeneous machines, can easily be completed by way of a flexible jumpers in an instant.

And then, Fiberstore provides fiber optic products, including Single Mode Fiber Cable, multimode fiber optic cable, fiber optic connecting devices such as a full range of products, and to design a flexible solution that is more close to the people which the local user needs. With deep technical reserves, Fiberstore is being updated constantly develop all-optical solutions, cutting-edge technology to lead the world trend.Fiberstore Complete product range and reliable performance has been a model for the industry, has been widely used for a variety of communication channels designed cabling system. In particular, the epoch-making in the field of fiber optic products─plastic optical fiber, without professional training to operate, can be easy to achieve high-speed transfer rate, high bandwidth.

Information transfer rate up new plastic optical fiber per 10Gbps, is 10 times the existing glass fiber. The advent of new high-speed plastic optical fiber, will not only basic trunk network, but will also have the office, home computers, fiber optic terminal of an enormous boost. Plastic optical fiber diameter ratio of 30 times coarse glass fiber, flexible, and easier to connect.

The information transfer of new plastic optical fiber rate up per 10Gbps, it is 10 times the existing glass fiber. The advent of new high-speed plastic optical fiber, not only basic fiber trunk cable network, but also have an enormous boost to the office, home computers, pre terminated fiber. Plastic optical fiber diameter ratio of 30 times coarse glass fiber, flexible, and easier to connect.

Fiberstore plastic optical fiber solutions is made up of a fiber-rich plastic optical product, including indoor dual core plastic optical fiber, plastic fiber optic connectors, dual-core plastic optical fiber jumper, plastic optical fiber jumper logo, plastic fiber optic coupler, fiber optic patch panels, 8-port plastic optical fiber switches, network cards and POF-RJ45 port fiber optic transceivers composition.

Fiberstore fiber cords have multimode and singlemode, they meet ANSI/TIA/EIA568A standards, passed the UL certification for fiber to the desktop, connected to the transmission equipment and the production of fiber optic jumpers. They can be applied to management, equipment room and work area.

In summary, Fiberstore Fiber optic cabling system with its unique open design rationalization plan, as well as comprehensive product application technology simple connection combination, not only for users with high-quality transmission performance and comprehensive service support, giving users more high efficiency, high mobility system maintenance operability. Fiber optic cabling solutions with seamless integration of active networking products, so Fiberstore fiber optic cabling solutions are with a stronger overall performance.

FAQ In Fiber Optic Cabling

Firstly, do choose multimode or single mode fiber? What is the difference between them?

In general, the user requests the fiber transmission distance is relatively short, such as a few hundred meters, can be Multimode Fiber Optic Cable. However, if the transmission distance has several kilometers, even further, without the use of signal repeaters must be single-mode fiber.

Secondly,  Do choose 4 core, 6 core, 8 core or more core Fiber Optic Patch Cables?

Fiber complete the transfer task, it must receive at least one first serve two core. In fact, there are 4,6,8 or more optical fiber core, the core can be used as extra backup, you can do more transmission channels.

Thirdly,  Does use wall or rack-mounted fiber optic patch panel cable box?

Wall fiber boxes are generally used in small fiber-optic network, for example, a 4-core optical fiber, but if there is more number of fiber optic, it shows the advantages of rack patch panel. It can be placed inside the routers and switches with a cabinet for easy centralized management and more secure.

And then, What is the connector type of FC,SC,ST,LC,MTRJ, and Which one can be choose?

These different interfaces have used in different environments, they differ mainly in the method and shape connection, is it the same as the screws tighten or direct card? Is square or round? Large or small mouth opening (mouth relatively large place occupied by a small mouth can have greater port density)? Two heads separately or synthetic one? Users need not be too concerned about the specific interface, to note that if the extension already exists in the case of older fiber optic systems, you have to match each job.

Finally, Is the choice of the center beam tube or Stranded cable?

Central tube Fiber Optic Cable placed in the center portion of the cable core, many of the core tube synthesis bunch shape, and the outer cable surrounding two wires placed in parallel to ensure tensile strength.

The central part of Stranded cable strengthen stereotypes core fiber. Fiber core surrounded by a peripheral that strengthen the core, many cores together to form the shape layer by layer.

How to identify fiber optic, is single mode or multimode fiber?

The first is a relatively simple method for indoor fiber, it can be identified by single-mode fiber and multimode fiber external color, Single Mode Fiber Cable is yellow, Multimode Fiber Optic Cable is red. Including Fiber optic patch cords and Fiber pigtails are the same recognition.

For MPO Fiber, generally can be identified by model code, there are a bunch of characters on the cable sheath, such GYXTW-4-A1a, the last paragraph begins with A on behalf of the multi-mode fiber, beginning with B represents a multi-mode fiber, a little more detail, A1a representing 50/125 multimode fiber specifications, A1b representatives 62.5/125 multimode fiber specifications, B1.1 representatives of non-dispersion shifted single-mode fiber and so on.

If this way can not be identified single mode fiber or multimode fiber, it is only through a special device to identify, as fiber splicing machine, it will automatically recognize the single mode or multimode fiber, single mode will show SM, multi-mode will show MM.

The Basic Knowledge of Optical Fiber and Pigtail

How do fiber optic work?

Optical fiber communications composed of thin glass by the plastic protective overcoat layer. Glass essentially consists of two parts: the core diameter of 9 to 62.5μm, a low refractive index outer cladding diameter of 125μm glass material. Although according to the different materials
used, there are some other types of fiber, but is mentioned here that the most common types. Light in the core portion of the fiber to the “total internal reflection” mode transmission, but also refers to the light entering end of the fiber, the interface between the core and the cladding reflected back and forth, and then transmitted to the other end of the fiber. Core diameter of 62.5μm, outer cladding diameter of 125μm fiber called 62.5/125μm fiber.

What is the difference between multimode and single-mode fiber?

Multimode Fiber Optic Patch Cables

Almost all of the Multimode Fiber Optic Patch Cables dimensions are 50/125μm or 62.5/125μm, and the bandwidth (the amount of information transmission fiber) is usually 200MHz to 2GHz. Multimode optical transceiver via multimode fiber can be up to 5 km of transmission. In the light emitting diode or a laser light source.

Single Mode Fiber Cable

The size of Single Mode Fiber Cable 9-10/125μm, and compared with a multimode optical fiber, it has unlimited bandwidth and low loss characteristics. The single mode optical transceiver used for long-distance transmission, and sometimes up to 150-200 km. Using a narrow spectral line LD or LED as a light source.

Single mode fiber is cheap, but compared to multi mode fiber device, it is more expensive. Single-mode devices typically can run on single mode fiber, but also be run on a multi mode fiber, and multimode device only runs on multimode fiber.

How is the loss with using of the Fiber Optic Patch Cables?

It depends on the the wavelength of the transmitted light and the kind of optical fiber

When 850nm wavelengths for multimode fiber: 3.0 dB / km
When 1310nm wavelength for multimode fiber: 1.0 dB / km
When 1310nm wavelength for single mode fiber: 0.4 dB / km
When 1550nm wavelength for single mode fiber: 0.1 dB / km

Fiber Optic Pigtails

Fiber Optic Pigtails ony has one end connector, and the other end is an optical fiber core breakage, by fusion connected with other core cable, often appear in the fiber optic terminal box for connecting cable and fiber optic transceivers.

Fiber optic pigtails devide into multimode and singlemode fiber pigtails. Multimode fiber pigtail is orange and wavelength of 850nm, the transmission distance of 500m, for short-range connectivity. Single mode fiber pigtail is yellow, there are two wavelengths, 1310nm and 1550nm, transmission distance of 10km and 40km.

Fiber optic pigtail connector was devided into single mode and multimode by the mode of fiber optic cable; By overall structure can be divided into FC, SC, ST, MU, LC, F25, etc. By the end structures can be devided into PC、UPC、APC.

Here are some fiber optic pigtails products in fs.com, as shown in figure:

Multimode LC/SC/ST/FC Pigtail

Multimode LC/SC/ST/FC Pigtail

ingle-mode LC/SC/ST/FC Bunch Pigtail

Our fs.com provide wide degree flexibility on fiber pigtails, including 9/125 single-mode, 62.5/125 multimode 50/125 multimode and 10G 50/125um OM3 types, simplex fiber, 4 fibers, 6 fibers, 8 fibers, 12 fibers, 24 fibers, 48 fibers and so on.These fiber pigtails can be with fan-out kits and full compliant to Telcordia, EIA/TIA and IEC standards. Welcome to our store to know more information.

FiberStore Offers Custom Services Of Cabling System

As the rapid development of IT technology, along with the popularity of Gigabit and 10 Gigabit network applications, cabling system requires more bandwidth and higher speed. Facing the increasing demand situation, fiber optic cabling products, due to its high bandwidth, light weight, long transmission distance and other advantages, not only have been widely used in the backbone cabling system, but also involve FTTX.

In intelligent buildings, most applications use multimode fiber cable. Compared with single mode fiber optic cable, multimode cable is with a larger core diameter and good light signal transmission channel. Due to relatively stable quality of common Fiber Adapters and cables in fiber optical systems, more system failures are in connection. Currently there are two common methods in fiber optic connection, namely fiber splicing and fiber polishing. The use of professional fusion splicer can guarantee the quality of the connection and the success rate. Splicing lead to a less connection loss, generally less than 0.2dB, it is recommended to use splicing.

Fiber products supplied by FiberStore such as fiber pigtails and fiber patch cords are composed of high quality fiber, ceramic ferrule, high quality connector, by using special fiber polishing machine from large to fine of five grinding process, finally using professional fiber jumper tester, ensure the stability of the fiber optical system. At the same time, according to the different environmental requirements, fiber patch cables can be matched with different sheath (PVC, flame retardant PVC, LSZH,etc.). According to different network requirements, fiber patch cords can be mixed with different types of fiber termination ends (PC, APC, UPC). Therefore, in the description of a fiber jumper, the transfer type (single mode, multimode), both termination ends connector type (ST, SC, LC, FC, MTRJ etc.), surface structure type (PC, APC, UPC), number of cores (single core, multi cores), length (1 meter, 2 meters, etc.), sheathed flame-retardant degree (normal, low smoke zero halogen, etc.) all needed to describe clearly. Otherwise, you may get a fiber does not work well, leading to a great interference to the whole wiring system, which may cause inestimable losses to the entire IT network.

FiberStore Technology as a global supplier of cabling system, has rich experience in cabling products production. Each cable is guaranteed to with high quality and perform excellently, in order to bring a higher quality of the connection. Moreover, FiberStore provides custom services, you can based on your own special requirements. FiberStore entures all custom products will fully meet your expectation.