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نوشته شده توسط : sunprince
Fiber optic cables are the industry standard for data transmission for telecommunications, computer networking, and home audio components. Due to their many benefits, fiber optic cables remain the prominent choice for video, voice, and audio transmissions.
A fiber optic cable can be installed for acquiring internet access from DSL, Satellite, Dialup and cable connections. A plentiful of amenities offered by fiber optics cable includes faster and reliable data transfer. Installation of fiber optic cable can be a troublesome task. But once properly installed, fiber optic cable has the capability of carrying light wave signals over a long distance in very less time. However if not installed properly, it cannot transfer any signals even from one portion of the building to another.
An appropriate installation requires a systematic knowledge and understanding of the potential and limitations of the cables. It also includes comprehending with the procedures involved while installing and maintaining the cables for their lifetime. The procedure of fiber optics installation involves certain concerns such as the cable must withstand the pulling force required to position the cable on to the right place, and also to the extreme natural conditions for instance hot and humid climate, cold temperature, underground moisture and much more.
It is always beneficial to do initial preparation and forecasting before actual installing the cables. The planning steps should insure the following things.
- All the concerned parties for instance utilities or street department should be aware and endorse the positioning route for the cables.
- While planning for saving cost the route should make use of the existing poles. The cable should ideally occupy the topmost space accessible for communications.
- Proper distance must be preserved among the fiber optic cables and other electrical power cables where common poles are being used.
- Determination of existing dead-end poles should be done beforehand to make sure the sturdiness of the poles.
- Evaluation of splice location is done during the route survey of the cables. It is done to ensure the best possible use of continuous cable without much splices or joints.
- In certain cases where aerial installation needs to be done the weather conditions should be good. It should not be done in drenched conditions. Each and every individual in the working unit should be aware of this.
- The fiber cables should be properly positioned when there are other high voltage cables.
After assuring efficient planning and analyzing, the installation can be achieved in two different ways.
- The first, a steel messenger is first of all positioned among the poles. In order to pull the messenger, a truck and a cable reel trailer are employed. To secure the cable near the messenger, a cable guide and cable lasher are used to enclose the cable in the messenger. The cable is made to form an expansion loop so that it allows for the expansion of the messenger at both the poles. The expansion loop length should be more than twice of the depth. The cable should be positioned in such a way that it maintains its least bending radius all the times.
- The second is direct installation of self-supporting figure 8 fiber optic cable. This greatly makes things easier like positioning cables onto an aerial plant. This cable integrates both the messenger and the cable into sheathing like figure 8 cross section.
FiberStore is a fiber optic cable supplier which offers cables and cable management products. To install fiber optic cables properly, you can come to our website for more information.
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تاریخ انتشار : چهار شنبه 27 شهريور 1392 |
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نوشته شده توسط : sunprince
Fiber optic cable consists of glass fibers, allowing for significantly higher transfer speeds compared to copper. The cable uses glass fibers instead of copper wires to transmit conversation and data. Glass cables need to be custom-cut so that they have a nice crisp edge that doesn't scatter the light, but plastic optical fiber can be trimmed on the jobsite.
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. 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.
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. However, they have some disadvantages too. 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. 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. 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.
Whatever, fiber optic cable is a wonderful thing. It can transmit almost insane amounts of data per second , and it is completely impervious to surges, 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 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. 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. Fiber optic cable is now being used to transport both video and audio signals for short and long distances. It 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.
Because of the wide range applications of fiber optic cables, 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. FiberStore fiber optic cables provide superior tensile strength and resistance to cut-through and abrasion while maintaining flexibility. Whether common fiber cables or POF cable, figure of 8 cable and other special cables are right for sale with best price.
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تاریخ انتشار : سه شنبه 26 شهريور 1392 |
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نوشته شده توسط : sunprince
Fiber optic cable became the admirable source of long distance telecommunications in the 1980s. Today, the cable finds an unparalleled role in installing a variety of networks. Further more, the use of fiber optics for installations at homes and offices is increasing with time. However, it is extremely important to learn the right instructions for such installations.
Before the introduction of installation, let me show you some benefits of fiber optic cables.
The most attractive benefits of fiber optic cable is that it supports high bandwidth data transmission. The bandwidth value is extremely higher than that supported by other types of cables. The second is that the bandwidth capacity of these cables can be increased further using different multiplexing techniques. Another is the reduction in electromagnetic interference.
Rare chances of data loss during transmission are ensured by these cables. It means that they arrange for secure data transmission arrangement. Any fault in the cable can be easily detected. They are also resistant to damage caused by sparks and lightning. In addition, the cables are extremely durable and offer long term usage that adds to their cost effectiveness. Fiber optic cable is fast becoming a compliant medium of transmission and network set-up in different environments. They have definitely added a new chapter to the history of effective communication.
As compared to copper cables, those based on fiber optics technology are capable of offering many advantages. Though they have higher installation costs, but the long term benefits make their use in different applications acceptable. Here are some installation tips for fiber optic cable installation.
Firstly, it is important to know the types in which the fiber optic cable is available. While single-mode cables are useful for long distance installations, the multi-mode versions are apt for short distance applications. Simplex fiber optic cables will be used when a signal only needs to go in one direction while duplex versions are used in applications where data needs to be transferred bi-directionally. There are so many types of different fiber optic cables that it is suggested to obtain the variety which will be compliant with the equipments it will be connecting.
Once the cables are purchased, the next step should be to check them against possible damages. It is an important step considering the high cost of installing fiber optic cables. Visual fault locator based on red laser light is a tool that can be used for this purpose. There are two essential installation guidelines that must be followed. First, the pulling tension for these cables should not exceed the recommended value during installation as well as afterwards. Second, the bend radius of the fiber optic cables should not exceed the recommended value.
High pulling tension or exceedingly bent radius can permanently damage these cables. A number of tools can be used to ensure correct installation and strength member is one of them. The tool helps in attaining the right grip on the fiber optic cable so that its effective strength is utilized to the fullest. In order to protect the pre-terminated ends of the cable, another important tool called pulling eye must be used. A great deal of care must be taken to avoid scratching and twisting of the cables. The use of the best fiber optic connectors will enhance the worth of the installation.
FiberStore is the best fiber optic cable supplier who offers plastic fiber optic cable as well as common glass fiber cable, and some special cable such as figure 8 fiber optic cable is also available.
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نوشته شده توسط : sunprince
Glass fiber has a dominant position in optical communication. But it has some fatal weakness including the low intensity, poor anti-bending performance, and bad resistance to radiation. For nearly 20 years, scientists have been looking for a new transmission medium and finaly they found plastic optical fiber as a medium is feasible in the light transmission and carried it out in real life for some applications.
Commercial products those are made of plastic optical fiber have been widely applied in some areas, such as lighting, information transmission. Even, plastic optical fiber has been able to replace the glass fiber in some areas. This article is about the transmission principles of plastic optical fiber.
POF (short for plastic optical fiber) has a step-type structure of the fiber core skin. Refers to the radial plane containing optical axes of the plane, called Meridian, is the propagation path of light which is always in the same plane. The radial light and optical axis is always the intersection of light propagation in a homogeneous medium that is a linear spread.
When light transmits from one medium to another medium surface, the general simultaneous reflection and refraction if the light from the refractive index of light thinning small medium large refractive index of light launches into dense medium. And when the light from the light launches into optical media thinning dense medium angle of refraction will be greater than the incident angle, so that when light from the light launches into optical thinning dense medium, it is likely to occur only when the medium without refraction reflection phenomenon, which is total reflection. Total reflection is a boundary effect of light refraction, for example, from one transparent medium into another medium in which curved phenomenon. POF is through the principle of total internal reflection of light transmission.
Only when the external light incident angle is less than 0, the light to the fiber by total reflection in the form of forward spread, spreads from one end of optical fiber the other end. So the critical acceptance angle of fiber 0. Therefore, total internal reflection-type is zigzag manner in SIPOF. As radial fiber is not the same incident light angle, Guer geometry in the fiber is not the same itinerary. Meridian in the light of both the trip times of reflection formula or formula, it is assumed that fiber is in very good condition. Fiber is straight, uniform diameter fiber, optical fiber and optical fiber within the defect-free straight face such incident. If the fiber did not have the ideal conditions, the incidence of radial total reflection would change the situation, if any, would be reflected out from the fiber, and some reflection angle would change and so on, so the fiber transmission loss will increase.
For graded refractive index GIPOF, also has radial and oblique light, this is not a constant optical constants of refractive index, but with increasing distance off-axis refractive index decreased; parabolic refractive index distribution mode optical fiber has low dispersion characteristics, reflects the distribution of various forms of gradient, when the refractive index distribution by quadratic parabolic distribution, the radial spread of the path in the fiber type for the sine curve, the spread of the light path inclined spiral curve , graded refractive index POF are used for short-distance data transmission, fiber optic lighting for small. This optical transmission of laser energy distribution close to Gauss distribution, that is, near the fiber axis there is a higher density of light energy which is more focused laser energy, the transmission of laser power density.
FiberStore is a high quality fiber optic cable supplier who supplies cables including plastic fiber, figure of 8 cable and other special fiber cables. To know more, please come to our website.
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تاریخ انتشار : جمعه 22 شهريور 1392 |
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نوشته شده توسط : sunprince
Nowadays, fiber optic cable has been more and more popular instead of the copper cable. However, these two different types actually have several different varieties of uses either in office or residential areas. Fiber optic is the latest technology in cabling or wiring system that allows you to get more advantages.
Copper cable is the older type of cable that has been used for over a hundred years in some different systems. You will find that this cable was traditionally used as telephone wire, speaker system wire, as well as computer wire. Copper cables contain a single thread of copper. The size will be quite different based on the purpose of the cable. It could be in thin or small size, but you can also find some types that come in large size as thick as your arm. Those are sometimes protected with a covering of another type of metal. The covering is usually called braiding.
What about fiber optic cable? It consists of plastic or glass strands to transmit information. Besides, it also transmits the data in form of light instead of electricity. A little bit different from copper one, fiber optic could not transmit electricity. However, this kind of cable offers higher theoretical performance. Besides, those two types of cable also have different resistance against interface. Copper cable usually is quite weak to some kinds of signal interface, such as those from cell phones or microwaves. Therefore, you should not operate or use any device that might trigger interface. However, you will not find this certain problem when you are using fiber optic cable.
There are several benefits offered by fiber optic cables. You might find some risks of interface from copper cable, but not fiber optic cable. Meanwhile, you will get great convenience from optical fiber since it could transmit multi-channel audio through a single line. This ability also makes this certain cable very popular for home theater system wiring. However, you need to pay more money to afford it.
Although compared to copper cables, fiber optic cables have so many advantages, they have good use in different areas. Copper cable is mostly used in Ethernet Network for short distance transmission, while fiber optic cable in the Optical Network for long distance transmission. You can choose the most appropriate one to support your own needs.
FiberStore is the best fiber optic cable supplier I know, who supplies copper cable at the same time. You could find all types cables here (such as figure of 8 cable and plastic fiber optic cable) with high quality but at greater price compared to other online stores.
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تاریخ انتشار : پنج شنبه 21 شهريور 1392 |
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نوشته شده توسط : sunprince
As the backbone of fiber optic network, fiber optic cables are used everywhere nowadays. However, fiber cable price is different everywhere. There are some small tips for you.
Firstly, anyone who is currently going through the process of trying to find fiber optic cables will need to know where to look. The internet is without a doubt one of the best resources for gathering information on where to get high quality inexpensive fiber optic cables, so you will need to take advantage of it as much as possible. In the end you will be glad that you took enough time to do this research because of all the different deals you can get on what you need, which is especially important for those who are on a tight budget. There is no doubt whatsoever that the internet will be able to offer you some of the best all time deals on fiber optic cables, so you will definitely want to look into what you can find on there as soon as possible. After you have taken the time to look around online for fiber optic cables, you will be able to get just what you are looking for without having to spend too much money at all. The more time and effort you put into doing this research, the more money you will save on the cables you need.
Secondly, fiber optic cables are necessary for many different companies and if you need these cables as soon as possible, you will need to start by going online and carefully reviewing what you have to choose from before making any final decisions at all. By taking the time to do this research, you should be able to find exactly what you are looking for while managing to stay within your budget completely. You should also keep in mind that it will be imperative to make a point of looking at the reputation of the company you are thinking about buying from, because this will be extremely important overall. With all of the different companies that sell fiber optic cables, you will definitely need a way of narrowing down the list until you can select one company in particular to go with. Make sure to look at reviews for certain companies that sell fiber optic cables so you can find the one with the most positive reviews. By taking the time to do this research before making any final decisions, you will be able to get exactly what you need with minimal problems.
Lastly, those who are on a tight budget and need to save a maximum amount of money on fiber optic cables should make a real point of spending as much time as they need browsing the web and looking at some of the different places that sell them. You might just be surprised at how great of a deal you will be able to get when you spend enough time browsing the web and doing this sort of research. Since fiber optic cables can be quite pricey, it will be especially important to make sure that you take enough time to see which companies there are to choose from before buying from one in particular.
If you want to search for high qualit fiber optic cables with low price, I recommen the fiber optic cable supplier FiberStore where very best fiber optic cable for sale are available.
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تاریخ انتشار : دو شنبه 18 شهريور 1392 |
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