cables
Albout cables and accesories
Wednesday, 1 May 2013
Electronics Micro USB OTG Cable
The T & S Electronics (TM) Micro USB OTG cable is solidly built, has sturdy connectors, high quality COPPER wiring and is the highest quality USB OTG cable you can get.Our OTG Cable has a small but tough "L" shaped connector to better accommodate using your devices with stands and cases (see image above). Much better than the cables by major manufacturers (over-sized connectors).
Tuesday, 18 September 2012
Tuesday, 21 August 2012
Fiber Optic Cables
Each fiber optic cable guide includes a radius limiting portion that prevents fiber optic cables from being bent beyond their minimum bend radii. The fiber optic cables have clear advantages over the copper cables. There is more security, and the fiber optic cables are more reliable than any other wire available. The fiber optic cable is in the high voltage environment. Dry-band voltage of the polluted sheath's surface of the all-dielectric self-supporting fiber optic cable is analyzed in this paper.
The fiber optic cable 700, shown in FIG. The FIMT core 702 includes an inner tube 706 surrounding one or more optical fibers 708. The fiber optic cable is the main choice for high speed Internet connections and the primary material used for country to country or continent to continent Internet connections. By moving the connection type from copper to fiber optics it will allow the DisplayPort to achieve higher bandwidths which are necessary for HDTV playback and if you consider that there are a lot of games that you can play over the Internet, streaming them through the DisplayPort directly to your LCD TV might be one option the industry is going to take in the near future. The fiber optic cable can be installed easily from point to point, passing right next to major sources of EMI with no effect. Conversion from copper networks is easy with media converters, gadgets that convert most types of systems to fiber optics.
The fiber optic cable assembly includes a bundle of fiber optic fibers, a tube, a track, a plurality of fasteners and securing means. The tube has a front surface and a rear surface. The fiber optic cable transmits the photon to a second quantum dot that also happens to be sitting between two mirrors. In this case, the mirrors "catch" the photon and bounce it off the quantum dot until it finally absorbs it. The fiber optic cable has an end that is stripped. The stripped end includes a bare fiber that extends into the connector and through the ferrule.
The fiber optic cable carries multiple services throughout campus including: voice, video, cable TV, and data. In addition to having the fiber cable in place, newer fiber cable TV distribution equipment became more readily available at a reduced cost. The fiber optic cable and lens allows the instrument electronics to be kept away from the target environment where it would be subjected to higher temperatures, smoke, dust, steam or powerful electromagnetic emissions such as generated by induction heating. Both the stainless steel lens and rugged cable assembly can be replaced in the field without returning the instrument for calibration (a unique feature). The Fiber Optic Cable Blower is designed for the installation of fiber optic cables with diameters from 0.23" (5.8 mm) to 1.13" (28.7 mm) into innerduct from 0.98" (25 mm) outer diameter to 1.97" (50.0 mm) outer diameter. The correct size cable seals, feed tube and venturi must be determined for the cable being installed.
The fiber optic cable receives input from the reflection off of the internal 3/4 inch diameter sphere surface. The IS1 is ideal for portable color measurements and acts like a cosine receptor for irradiance measurements. The fiber optic cable (20) includes a light carrying center (28), a cladding (30) and a buffer (32). The cladding displacement connector (10) has surfaces (60,62) which can be used for displacing the buffer (32) and cladding (30) to expose (34) the light carrying center (28).
Fiber-optic wires carry information in the form of light . To make a fiber-optic nanowire, engineers first start with a regular fiber-optic cable. Fiber-optic cable is now being used to transport both video and audio signals for short and long distances. This is made possible by modulating a video/audio signal(s) onto a beam of coherent light, which is generated by a solid-state laser.
Fiber-optic cables are not crimped, soldered, or twisted together when they are repaired. If the cable is broken, another cable must be cut to fit between the two connectors. Fiber-optic technology is well known in telecommunications, local area networks, the CCTV security marketplace and in many Intelligent Transportation System (ITS) highway projects. Even CATV (cable) distribution to various local feed points within a residential community is now routine for fiber.
Network operators are looking to recoup the cost of the fiber-optic cable and other infrastructure pieces that make a high-speed Internet possible. They argue that the upgrades are necessary to deliver such innovations as high-definition video-on-demand and high-quality teleconferencing. Our standard fiber-optic ribbon cables provide superior tensile strength and resistance to cut-through and abrasion while maintaining flexibility. Cables are available for aerospace and other demanding applications. The fiber-optic cable did not allow that.
glass,glasses
Fiber Optic cabling is made with glass fibers. Provide very little variation in the signal they carry over long distances. Optical engineers have found that adding different additional chemicals to the basic silicon dioxide they can change the optical properties of the glass. By adding roughly 4% germanium dioxide (GeO2), for example, they can create a glass that has much less attenuation, and much 'flatter' attenuation across various frequencies of light, than silicon dioxide by itself. Although fibers can be made out of either plastic or glass, the fibers used in long-distance telecommunications applications are always glass, because of the lower optical absorption of glass. The light transmitted through the fiber is confined due to total internal reflection within the material.
FYI, fiber optic (the core of it, not shell to cover it) is made of glass and not plastic. The fiber optic strands of glass (optic fibers) within fiber optic cables carry analog or digital signals in the form of light waves. Distance and capabilities will increase even more once the glass becomes more pure.
Remembering the headache and the brilliant white light from high SiO2 glass, Richard knew that the formula would be ultra pure SiO2. Richard also knew that Corning made high purity SiO2 powder, by oxidizing pure SiCl4 into SiO2. NEP Supershooters has adapters that work around the fiber by breaking out the glass, but this means that the camera must be powered from the closest electrical outlet or generator. It's just one more thing to go wrong if the power plug gets pulled or the generator quits. A fibre optic cable consists of a glass silica core through which light is guided. This is covered with a material with a refractive index of slightly less than the core.
The core and the cladding (which has a lower-refractive-index ) are usually made of high-quality silica glass, although they can both be made of plastic as well. Connecting two optical fibers is done by fusion splicing or mechanical splicing and requires special skills and interconnection technology due to the microscopic precision required to align the fiber cores. A type of cable that transmits data as light through strands of glass instead of electricity through copper . Fiber-optic cable is a wonderful thing; it can transmit almost insane amounts of data per second , and it is completely impervious to surge s, magnetic fields , lightning , and all the other EM nasties that can affect copper cable. Fiber optic data transmission uses light in glass fiber cable as a communication medium. It is ideal for spanning areas with severe interference, such as near heavy electrical equipment, welding or radio transmissions.
Fiber optics are thin filaments of glass through which light beams are transmitted. Advantages of fiber include high information carrying capacity (bandwidth), very low error rates and insensitivity to electromagnetic interference. Then, the bare glass (125 mm) is cleaned and set in place under a special laser below a custom photo mask that is set 50 mm above the cable. Once the laser performs its cycle, the assembly is now customized. Abraham Van Heel covered a bare fiber or glass or plastic with a transparent cladding of lower refractive index. This protected the total reflection surface from contamination and greatly reduced cross talk between fibers.
Fiber-optic cable consists of glass fibers, allowing for significantly higher transfer speeds compared to copper. Data are transmitted in the form of light pulses injected by a laser or an LED. The cable uses glass fibers instead of copper wires to transmit conversation and data. AT&T's old cables generally are shark- free because they don't emit much magnetism. Glass cables need to be custom-cut so that they have a nice crisp edge that doesn't scatter the light, but their plastic cousins can be trimmed on the jobsite. Still, no ordinary wire cutter will do.
From a technical standpoint, fiber optic cable consists of a bundle of glass or plastic rods that can transmit data signals. Fiber optic cable can send and receive in both analog and digital formats, and can carry video, voice, and internet packets. Some new cable designers will actually provide built-in bend limits to protect the glass within.
While copper wires can be spliced and mended as many times as needed, it is much harder to fix glass fiber-optic cables. And this time it's not all dependent on one market (though LCD glass is huge). We have the LCD glass, auto/diesel catalytic converter substrates, and fiber. Theoretical work showing that light loss in glass fibers could be decreased dramatically spurred experimental efforts to produce such fibers. Researchers continued exploring techniques to decrease light loss in optical fibers.
The light beam bounces off the side of the glass or plastic fibers in the cable, which are thinner than a human hair. The light does not pass through the wall of the fiber, but is reflected back in and travels along to the end of the fiber.
Fiber Optic Cabling For Beginners
Everyone knows that a structured cabling system is the foundation of every business network, providing connectivity between servers, computers, and other network devices and allowing both voice and data to be sent worldwide. When it comes to data cabling, there are different mediums available to carry that data, transferring it from point A to point B. Traditionally, twisted pair copper cable has been and is still currently used as the most common form of structured data cabling, transmitting data through copper wires. As technology continues to advance however, and the demand for faster, more advanced methods of networking grows, fiber optic cabling is quickly on its way to becoming the next generation standard in data cabling.
Benefits of fiber optic cabling include:
Longer distances - Signals carried through fiber optic cable can go up to 50 times longer than those using copper wires due to low attenuation (signal loss) rates, without requiring a signal repeater to maintain the integrity of the signal over long distances as copper wire cables do.
Intrusion prevention - With copper wire cable systems, it is possible to remotely detect a signal being broadcast over the cable, which can present unwanted security loopholes. This is not an issue with fiber optic cable as its dielectric nature makes remote detection impossible, and gaining access to the fiber itself would require a physical intervention that would be easily thwarted by a well placed surveillance system.
Installation improvements - Longer lengths, smaller diameter, and lighter weight of fiber optic cable make installation and upgrades easy and less costly than with copper cables.
Higher bandwidth and data transfer rates - With wider bandwidth, more data is able to be transferred at a much faster speed. This allows for shorter download times and increased network efficiency.
EMI Immunity - Fiber optic cables can be installed in areas with high Electromagnetic Interference (EMI), as the absence of metallic wiring makes the cable completely immune to EMI.
Depending on your specific data cabling requirements, there are two different types of fiber optic cable available to meet your needs:
Multi-Mode fiber - Multi-mode fiber has a large core diameter, where light may be broadcast through multiple paths on its way to its destination. This gives multi-mode fiber high transmission capacity, but only retaining reliability over short distances generally less than 8 miles, limited by modal dispersion.
Single-Mode fiber - Single-mode fiber has a much smaller core diameter than multi-mode, allowing only one path for light to be broadcast through. Single-mode is used for long distance transmission, well exceeding the limits of multi-mode, and is not limited by modal dispersion.
Different environments also require different types of cabling systems to ensure the fiber stays in good condition. Depending on where you are installing the cable, there are two basic types of fiber cabling systems that can be used:
Inside plant - Inside plant fiber cabling systems are designed for use inside a building where they generally have no contact with environmental variables. In a typical fiber inside plant cable system, individually coated fibers are positioned around a dielectric strength member core, and then surrounded by a subunit jacket. Aramid yarn(Kevlar) surrounds the individual subunits within the cable, reinforcing tensile strength. Some inside plant fiber cabling systems have an outer strength member as well, meant to provide protection to the entire cable. For inside plant installation, fiber ribbon-cable systems are also frequently used. Ribbon cables have a flat ribbon-like configuration that allows installers to conserve conduit space as they install more cables in a particular conduit.
Outside plant - When installing fiber optic cable either outside or underground, an outside plant fiber optic cabling system is used. Outside plant fiber cabling systems are composed of individual gel-filled subunit buffer tubes which are placed around a central core strength member. Within each subunit buffer tube, buffer coated fibers are placed around a strength member. A binder that contains a water-blocking compound encloses all of the subunit buffer tubes, which is then enclosed by an outer strength member usually composed of aramid yarn. Corrugated steel is used to provide physical protection and acts as an external strength member, placed between an inner MDPE jacket and an outer HDPE jacket.
So now that you have a general understanding of the different types of fiber optic cable, you can decide which specific devices are appropriate for your particular installation. For example, say you are having a fiber optic system installed to be run for more than 375 feet through a warehouse. This length is too long for a copper wire cable system to carry data, but multi-mode fiber can handle it easily. An indoor plant installation would be suitable for this situation, since the cable is being run indoors with no environmental variables to worry about. In order to interface your new fiber optic system with an existing Ethernet system, you will either need to use a dedicated switch or media converter, or a switch with GBIC (gigabit interface converter) modules. This will convert electric signals to optical signals, and vice versa, allowing the seamless flow of data through both of the cable mediums. Next, it is important to decide which method of protection you are going to use for the fiber optic cable. The two available options are: running the fiber through an innerduct to house and protect the fiber, or using armored fiber which has built in protection. Both are good methods of protection.
Pre-Installation Checklist: What you need to know
- Installing fiber through innerduct, or is armored fiber a better way to go?
- How far is the fiber cable being run; multi-mode or single-mode?
- Which method of converting the two cable systems will be used so they may communicate?
- Is this an indoor installation, outdoor installation, or both?
With any investment, it is important to know that you are getting the best value for your money. Low system cost, combined with a longer life expectancy than copper cabling makes fiber optic cabling the best value hands down when it comes to structured cabling. Fiber optic cabling offers a structured cabling system that is designed to accommodate future applications and technological advancements, making fiber optic cabling the "cabling of the future". If you plan on installing a data cabling system that you want to last as long as possible and have unmatched performance, fiber optic cabling is the way to go. California has seen a rapid increase in businesses opting for fiber optic cabling over copper wire cabling. This has proven to be especially true in San Diego fiber optic cabling installations. For more information on the increase in fiber optic cabling in San Diego, there are multiple resources accessible online.
Xetra Networks Inc. is a San Diego Low Voltage and General Building contractor that designs and installs telecom solutions. We specialize in voice cabling, data cabling, fiber optic cabling, VOIP, wireless, computer rooms, server rooms, and surveillance systems in San Diego, as well as the entire southern California Region. For a free consultation and estimate, contact Xetra Networks today and let us be your friend in all of your IT solution needs.
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