Month: September 2013

Buy High Quality Optical Cables From FiberStore

Fiber optic lines, which can be as thin as a piece of human hair, are used to transmit light signals and carry these signals over long distances, are widely used in networks.

There are many different types of fiber optic cables. All of the cables are defined by the number of fibers in the cable, the type of fibers (MM or SM), the size of the fiber (50, 62.5 or 125um) and the type of material used to enclose the fibers. The material used to enclose the fibers have many names. Some of the names are generic and others are names used by the cable manufacturer.

Regardless of which type of cable is used, information is transmitted in the same manner. Because the inside of fiber optic cable is coated with a reflective service, total internal reflection is present within the fiber optic cable. In order to transmit information through the interior of the fiber optic cables, analog information must first be converted into digital signals. Once this information is converted, lasers are able to transmit the digital signals in the form of pulses of light.

Because there is total internal reflection within the fiber optic cables, the information that is being transmitted in the form of light is able to continuously bounce off the reflective surfaces of the fiber optic cable. This is important, because even when the fiber optic cable is laid through an area that requires it to bend or twist, the total internal reflection allows the light to continue traveling through the cable to its final destination.

After you figure out these things, you may start to consider where to buy fiber optic cable with high quality and reasonable price?

Buying optical fiber cables for any engineering project is something that requires cautious approach. One cannot settle on poor quality cables in order to avoid expenses which eventually can lead to fire accidents resulting in even more expenditure.

Well, over the Internet, there are more chances of fiber optic cable manufacturers and suppliers. Accordingly, buyers increase their chances of buying high quality cables when they make purchase online. Also, since the competition is quite tough, the entrepreneurs sell the cables at amazingly competitive prices and what best platform can be there to find such prices if not the online medium?

Apart from quality and less prices, buying cables from FiberStore provides you with a range of options to choose from. Over the Internet, you can find fiber optics in a number of variants such as bare optical fiber, tight buffer fiber, large core fiber, simplex fiber cable, duplex fiber, OM3 OM4 fiber optic cable, waterproof cables, indoor outdoor fiber optic cable, ribbon fiber, loose tube cable, lszh cable, armored cables, FTTH fiber, figure 8 fiber optic cable, plastic fiber, pof cable, adss cable, hybrid fiber cable, etc.

Indeed, buying cables online is sensible. However, buyers can ensure that the FiberStore cables must be purchased from famous brands such as Corning – one of the leading industrial cable manufacturers in American.

What is Ribbon Fiber Optic Cable

Ribbon fiber optic cable is a typical fiber optic cable. Unlike beam optical cable, ribbon fiber optic cable is arranged into a strip. Ribbon fiber optic cable is a convenient solution for space and weight problems. The cable ribbons are actually coated optical fibers placed side by side, encapsulated in Mylar tape, similar to a miniature version of wire ribbons used in computer wiring. A single ribbon many contain 4, 8 or 12 optical fibers. There ribbons can be stacked up to 22 high.

Because the ribbon contains only coated optical fibers, this type of cable takes up much less space than individually buffered optical fibers. As a result, ribbon cables are denser than any other cable design. They are ideal for applications where limited space is available, such as in an existing conduit that have very little room left for an additional cable.

Fiber optic ribbon cable comes in two basic arrangements: Loose tube ribbon cable, fiber ribbons are stacked on top of one another inside a loose-buffered tube. This type of arrangement can hold several hundred fibers in close quaters. The buffer, strength members, and cable jacket carry any strain while the fiber ribbons move freely inside the buffer tube. Jacket ribbon cable looks like a regular tight-buffered cable, but it is enlongated to contain a fiber ribbon. This type of cable typically features a small amount of strength member and a ripcord to tear through the jacket.

Ribbon cables is commonly used in urban construction of circle trank cable network, the large capacity and multi-core features facilitate the jumper box crossing task in the local optical area network. Ribbon cables is rarely used in inter-provincial long distance fiber optic trunk cable.

Ribbon fiber provides definite size and weight saving, which required the connector, strippers, cleavers, and fusion splicers to be tailored to the ribbon fiber. Below is the simple steps of ribbon fusion splicing:
Ribbon fusion splicer is also called mass fusion splicers, it can splice the entire cable ribbons at on time. Ribbon splicers looks similar to single fiber splicers and work in much the same way, except the ribbons are treated as one assembly, stripped, cleaved and spliced by special tools while held in a special holder. The holder is inserted in a special stripper that uses heat to make stripping easier. After stripping, the holder is placed in a special cleaver that will cleave all 12 fibers at once. Then the fixure with all the cleaved fibers is placed in the splicing machine. When the second ribbon is prepared, the unit is set for automated splicing.

FiberStore, as one of the main fibre optic cable manufacturers provides a compact, efficient, and versatile solution to applications requiring maximum connectivity in a minimum amount of space. Our ribbon cable assemblies provide up to 72 fiber connections in a single point, reducing the physical space and labor requirement, while providing the same bandwidth capacity of a multi-fiber cable with individual fiber/connector terminations per fiber. The advantage of ultilizing ribbon fiber cables resides in the ability to achieve a much higher density in patch panel, cable routing/ducting, and device connection environments, without compromising the quality or quantity of the connection.

What It Meaning by Cabling Management and Data Security Protection

When doing data cabling, it is necessary to make sure that all of the cables to be installed in its intended destination without damaging it or its data-carring capabilities. Most networking suppliers including fibre optic cable manufacturers provides many different cabling products protect cable. Cable management tools helps you cable plant looks good, and help you find the cables faster. There are three categories: physical protection, electrical protection and fire protection.

Physical protection

Cable can be fragile, easily cut, stretched and broken. Cable should be protected in ways of conduit, cable strays, standoffs and D-rings.

Conduit is the simplest form of cable protection which can a metal or plastic conduit to protect the cable as it travels through walls and ceilings. Conduit is a thin-walled plastic or metal pipe which is used in many commercial installations to contain electrical wires. When conduit is put in place, the individual cables are run inside it.

Cable trays is needed when the cable must be supported every 48” or 60” handing horizontally. It is installed in ceilings to prevents the cable from sagging and putting stress on the conductors inside. The horizontal cable from the telecommunications rooms that run to the individual telecommunications outlets are usually placed into this tray to support them as they run horizontally.

When terminating UTP wires for telephone applications in a telecommunications room, you will often see telephone wires run from a multipair cable to the 66-punch-down block. To be neat, the
individual conductors are run around the outside of the board that the punch-down blocks are mounted to (as show in Figure 13.11). To prevent damage to the individual conductors, they are bent around devices know as standoffs.

After the cables come out of the cable tray and enter the telecommunications room to be terminated, special metal rings called D-rings are needed to keep the individual cables in bundles and keep them close to the track. D-rings are also used on punch-down boards on the wall to manage cables, much in the same way stanoffs are. It is put in pace to support the individual cables, and the cable are run to the individual punch-down block on the wall.

Electrical protection

In addition to physical protection, electrical protection is also important during the designing and installing you cabling system. Electricity powers the network, switches, hubs, PCs and computer servers. Variations in power can cause problems ranging from having to reboot after a short loss of service to damaged equipment and data. A number of products-including surge protectors, standby power suppliers, uninterruptible power suppliers. And line conditioners are used to protect sensitive systems from the dangers of lighting strikes, uneven power, and accidental power disconnection.

Fire Protection

A few cabling-design concerns to prevent fire, smoke, or heat from damaging your cabling system, the premises on which they are installed and any occupants. Make sure you specify the proper flame rating for the cable according to the location in which it will be installed. The European market is demanding that cables used in LANs, WANs, etc. Meet LSZH specification. The IEC 60332-1 governs the Flame Retardant Grade specifications in reference to LSZH cables.
Another concern is the puncturing of fire barriers. In most residential and commercial buildings, firewalls are built specifically to stop the spread of a fiber within a building. Whenever there is an opening in a floor or ceiling that could possibly conduct fire, the opening is walled over with fire-related drywall to make a firewall that will prevent the spread of fire. In commercial buildings, cinder-block walls are often erected as firewalls between rooms.

After the proper cable management job done, data and cabling security protection is needed if your cable carry is sensitive and should not be view by just anyone. You may need to take extra steps when designing and installing your cabling system to ensure that the data stays when it belongs: Two ways to prevent data from being intercepted are EM (electromagnetic) transmission regulation and tapping prevention.

EM signal interception is the process of prevent the magnetic signals and turn them back into electrical signals that can be sent to another unwanted location. Susceptibility to EM signal
interception can be minimized by using shielded cables or by encasing all cabling runs from source to destination in a grounded metal conduit. These shielding methods reduce the amount of stray EM signals.

Tapping is the interception of LAN EM signals through listening devices placed around the cable. Some stapping devices are invasive and will actually puncture the outer jacket of a cable, or the insulation of individual wires, and touch the metal inner conductor to intercept all signals sent along that conductor. To prevent taps, the best course of action is to install the cables in metal conduit or to use interlocked armored cables. If it is practical. Grounding of the metal conduit will provide protection from both EM and invasive taps but not from taps at the cross connection.

Get The Most Common Bare Fiber Optic Cables

In modern life, bulk fiber optic cable can carry a signal quite a distance — perhaps 60 miles (100km). On a long distance line, there is an equipment hut every 40 to 60 miles. And bulk fiber optic cables are widely used in today’s networking system.

A real fiber optic cable is made out of glass. The glass is incredibly pure so that, even though it is several miles long, light can still make it through. The glass is drawn into a very thin strand, with a thickness comparable to that of a human hair. The glass strand is then coated in two layers of plastic.

Fiber optic cable types can be single mode or multimode. Modes describe the distribution of light energy across the fiber. Light rays can travel through the wire as long as they hit the core-cladding interface at an angle less than that of the critical angle. Multifiber cable is a fiber optic cable with several optical fibers. While single-mode cable is only one fiber with a small core that only allows one mode of light to propagate. Common bulk fiber optic cable types include simplex, duplex, bare fiber, etc.

Simplex Cable – Simplex cables are fiber optic cables with a single optical fiber. Simplex cable varieties include 1.6mm & 3mm jacket sizes.They are used in applications that only require one-way data transfer. Simplex is available in single mode and multimode.

Duplex Cable – Duplex cables are fiber optic cables with two optical fibers in a single cable structure. Light is not coupled between the two fibers, typically one fiber is used to transmit signals in one direction and the other receives. They are usually set up side-by-side and can be used for applications that require simultaneous, bi-directional data transfer. Duplex fiber is available in single mode and multimode.

Bare fiber – Bare fiber refers to a fiber optic core and cladding only. The bare fiber is primarily used for connecting equipment on one end to a light source on the other. Bare fiber can be terminated, polished, or prepared for pig-tailing.

The structure of a 250um coated bare fiber cable:

Core (9um for standard single mode fibers, 50um or 62.5um for multimode fibers),
Cladding (125um),
Coating (soft plastic, 250um is the most popular, sometimes 400um is also used).

Bare unjacketed fibre cable is perfect for effect lighting and can be integrated into any ceiling, wall, bar front and other design applications. Bare fiber cable should only be used in applications where the fiber can be installed without the danger of scratching or damaging the fiber cable and where future protaction is not required.

Jacketed solid core fiber cable is integrally sheathed with PVC to provide mechanical protection. They are suitable for direct embedment in mortar, soil or sand beds as long as care is taken to avoid crushing, scratching, cutting or kinking of the cable.

FiberStore, as a leading provider of optical fiber cables for over 8 years, supplies bare fiber cables from Corning company. The corning optical cable is OFNR-rated, UV-resistant, fully waterblocked indoor/outdoor cables. These cables with water blocking technology eliminates the need for traditional flooding compound, providing more efficient and craft-friendly cable preparation. Available in 62.5µm, 50µm, Single mode, Multimode and hybrid versions.

What Should You Know about Low-Smoke Zero Halogen Cables

Halogen is a nonmetallic elements such as fluorine, chlorine, iodine or bromine. It is generally used as flame inhibitors in many plastics, including PVC that goes into cable insulation and electronic products. Halogens are a group of chemical elements including iodine, bromine, fluorine, astatine, and chlorine. When these elements are exposed to fire, they form hazardous gases which are harmful to harm the eyes, nose, lungs, and throat.

LSZH is a material category used to classify cable insulation. LSZH (Low Smoke Zero Halogen) cable insulation is made of materials designed to give of reduced smoke and no halogen when exposed to fire. When combined with other fire deterrents and control practices, Zero Halogen Cables can help reduce fire related casualties and property destruction. These cables will also don’t give off hazardous gas/acids or toxic smoke when exposed to fire.

LSZH cables decrease the extent of smoke produced through fire and is normally used in inadequately ventilated areas, for instance, airplane and some areas that people may be affected by smoke and toxic fumes.

Beside the halogen free features, LSZH cable also has lighter weight, this is convenient especially if the cables are run overhead in a dropped ceiling. At the same time, the impact of halogen free cables will also be lower if there is a fire because there are fewer toxic chemicals involved.

Many different Fiber Optic Cable suppliers are now making low-smoke, zero-halogen cables. And it is currently widely used in Europe and elsewhere in the world contains halogens. The European market is demanding that cables used in LANs. WANs, etc. Meet LSZH specification. The IEC 60332-1 governs the Flame Retardant Grade specifications in reference to LSZH cable.

Essentially the compound used in manufacturing cables meeting the above specifications reduces the amount of dangerous/poisonous gases in case of fire. The main difference in specifications between IEC 60332-1 versus UL 5181, UL 1666 and UL 910 is that the cable under the IEC specifications continue to burn while still emitting very low gases. UL specs demand that the flame be extinguished, but it can still be emit poisonous/dangerous gases.

Most safety advocates are calling for the used of LSZH cables, especially for the plenum space. Review your local building codes to determine if you must use LSZH cable. Non-LSZH cables will produce corrosive acids if they are exposed to water when burned; such acids may theoretically further endanger equipment.