The first advantage which this cable offers is the security. It offers you more secure communications since it is highly resistant to radio frequency jamming and interference and tapping. With this cable, you will not experience of getting interfered while communicating. In addition, the Department of Defense has used this type of cable for over 25 years.

The second advantage is its inexpensive price. Compared to copper wire, this optical cable is available at lower price. It will be more economical option for you. In addition, it also allows you to transmit data over a large distance.

The third advantage you can take is that it is free from any electrical interference. It will make this cable particularly more valuable in locations with high voltage and lightening. Another important thing is that it does not need electricity so that it does not pose to a fire hazard.

The fourth advantage which you can take from optic cable is that it has low attenuation. It means that this cable has very little data loss even in a long distance. The light of the cable will travel through the fiber which makes it experience no attenuation or intensity loss over time.

Another great advantage of this cable is that it is space saver. With the great capacity which this cable is able to handle, you don’t need to install a lot of cable for your various needs. With less cable installation, you can save space in your building or some other small space. Source

1. Fibre optic cables provides a much greater bandwidth which means that it can transmit more data than metal cables.
2. Fibre optic cables are more immune than metal cables to electromagnetic interference such as radios, motors or other nearby cables.
3. Fibre signals travel along with less loss than metal cables.
4. Fibre Optic cables cost much less to maintain.
5. Data can be transmitted digitally (the natural form for computer data) rather than analogically.

Optical Fibre Types

There are lots of Fibre Optic training companies offering recognized qualifications and a quick search on the net should find one in your area.

If you are in the UK, Optical Technology Training Ltd offer several different courses to choose from including a City & Guilds qualification.

There are also hundreds of books on fibre optics and a search on the Barnes and Noble web site will find nearly 600 titles. Without reviewing them all it is difficult to know what to recommend, but two of the best sellers in this category seem to follow on quite nicely from this page without getting too involved with mathematics. The two books are the Introduction to Fibre-Optics by John Crisp and Understanding Fiber Optics, Third Edition by Jeff Hecht.

Right, lets get on with the lesson

First a bit history

In 1870, John Tyndall demonstrated that light follows the curve of a stream of water pouring from a container, it was this simple principle that led to the study and development of applications for this phenomenon. John Logie Baird patented a method of transmitting light in a glass rod for use in an early colour TV, but the optical losses inherent in the materials at the time made it impractical to use. In the 1950′s more research and development into the transmission of visible images through optical fibres led to some success in the medical world, as they began using them in remote illumination and viewing instruments. In 1966 Charles Kao and George Hockham proposed the transmission of information over glass fibre, and they also realised that to make it a practical proposition, much lower losses in the cables were essential. This was the driving force behind the developments to improve the optical losses in fibre manufacturing, and today optical losses are significantly lower than the original target set out by Charles Kao and George Hockham.

The advantages of using fibre optics

Because of the Low loss, high bandwidth properties of fiber cable they can be used over greater distances than copper cables, in data networks this can be as much as 2km without the use of repeaters. Their light weight and small size also make them ideal for applications where running copper cables would be impractical, and by using multiplexors one fibre could replace hundreds of copper cables. This is pretty impressive for a tiny glass filament, but the real benefits in the data industry are its immunity to Electro Magnetic Interference (EMI), and the fact that glass is not an electrical conductor. Because fibre is non-conductive, it can be used where electrical isolation is needed, for instance between buildings where copper cables would require cross bonding to eliminate differences in earth potentials. Fibres also pose no threat in dangerous environments such as chemical plants where a spark could trigger an explosion. Last but not least is the security aspect, it is very, very difficult to tap into a fibre cable to read the data signals.

Fibre construction

There are many different types of fiber cable, but for the purposes of this explanation we will deal with one of the most common types, 62.5/125 micron loose tube. The numbers represent the diameters of the fibre core and cladding, these are measured in microns which are millionths of a metre. Loose tube fibre cable can be indoor or outdoor, or both, the outdoor cables usually have the tube filled with gel to act as a moisture barrier which stops the ingress of water. The number of cores in one cable can be anywhere from 4 to 144

Over the years a variety of core sizes have been produced but these days there are only three main sizes that are used in data communications, these are 50/125, 62.5/125 and 8.3/125. The 50/125 and 62.5/125 micron multi-mode cables are the most widely used in data networks, although recently the 62.5 has become the more popular choice. This is rather unfortunate, because the 50/125 has been found to be the better option for Gigabit Ethernet applications.

The 8.3/125 micron is a single mode cable which until now hasn’t been widely used in data networking, this was due to the high cost of single mode hardware. Things are beginning to change because the length limits for Gigabit Ethernet over 62.5/125 fibre has been reduced to around 220m, and now, using 8.3/125 may be the only choice for some campus size networks. Hopefully, this shift to single mode may start to bring the costs down.

What’s the difference between single-mode and multi-mode?

With copper cables larger size means less resistance and therefore more current, but with fibre the opposite is true. To explain this we first need to understand how the light propagates within the fibre core.

Light propagation

Light travels along a fiber cable by a process called ‘Total Internal Reflection’ (TIR), this is made possible by using two types of glass which have different refractive indexes. The inner core has a high refractive index and the outer cladding has a low index. This is the same principle as the reflection you see when you look into a pond. The water in the pond has a higher refractive index than the air, and if you look at it from a shallow angle you will see a reflection of the surrounding area, however, if you look straight down at the water you can see the bottom of the pond. At some specific angle between these two view points the light stops reflecting off the surface of the water and passes through the air/water interface allowing you to see the bottom of the pond. In multi-mode fibres, as the name suggests, there are multiple modes of propagation for the rays of light. These range from low order modes which take the most direct route straight down the middle, to high order modes which take the longest route as they bounce from one side to the other all the way down the fibre.

This has the effect of scattering the signal because the rays from one pulse of light, arrive at the far end at different times, this is known as Intermodal Dispersion (sometimes referred to as Differential Mode Delay, DMD). To ease the problem, graded index fibres were developed. Unlike the examples above which have a definite barrier between core and cladding, these have a high refractive index at the centre which gradually reduces to a low refractive index at the circumference. This slows down the lower order modes allowing the rays to arrive at the far end closer together, thereby reducing intermodal dispersion and improving the shape of the signal.

So what about the single-mode fibre?

Well, what’s the best way to get rid of Intermodal Dispersion?, easy, only allow one mode of propagation. So a smaller core size means higher bandwidth and greater distances. Source

For infill developments of less than 100 premises, Telstra will continue to be responsible for delivering infrastructure and services, using its copper infrastructure as interim solutions, pending rollout of the NBN. However, in these situations nothing prevents developers from requesting any provider (whether it be NBN Co, Telstra or some other provider) to service those estates.

Outstanding issues now are the potential cost of different pit and pipe standards as proposed by NBN Co which are more onerous than what the property industry is used to (ie. much more spatial requirements and expensive) and the lack of RF overlay.

The latter is a technology transition issue towards IPTV, however in the interim it prevents a capability that had the benefit to remove all of the unsightly TV antennas and dishes that ironically was a key benefit that attracted many developers to FTTH in the first place.

Source:  http://www.fixtel.com.au/blogs/2010/12/11/nbn-co-to-provide-fibre-in-greenfields/

Under the arrangement, NBN Co will provide fibre to all broadacre developments, infill developments where the company already has NBN fibre in service and newly approved infill developments of 100 or more premises.

Telstra will be responsible for delivering infrastructure and services for infill developments of less than 100 premises.

The government has given NBN Co licence to carry out the connections itself or outsource under sub-contracting or build-operate-transfer arrangements.

NBN Co will also establish a panel of appropriately qualified and experienced providers who can bid to install fibre on its behalf.

According to the government, some 1.9 million new premises are expected to be built while the NBN is constructed.

According to Communications Minister, Stephen Conroy, connecting these premises to fibre as they are built will reduce NBN rollout costs by avoiding the need to retrofit.

“The new arrangements for the provision of telecommunications infrastructure in new developments are a significant change,” Conroy said in a policy paper on the changes. “They are an integral part of our plan to bring Australia’s communications into the 21st century. But a change of this scale is a huge undertaking. “The arrangements announced today will provide a smooth passage from the old to the new, but they will involve some transitional and interim measures. Not everything can be in place from the first day. Stakeholders will need to exercise some patience and flexibility.”

The Urban Development Institute of Australia (UDIA) said NBN Co’s funding of the provision of fibre and backhaul to new housing estates, with developers funding the provision of ‘pit and pipe’, was a “sensible solution” that would benefit new home buyers and provides the development industry with some certainty.

The Residential Development Council also said the announcement meant that there would be no additional costs to consumers for the installation of broadband.

Source: http://www.computerworld.com.au/article/370919/conroy_details_nbn_co_greenfield_fibre_role/

These days, demand requires a higher standard of phone system. The problem is that a wired phone system can get to be way too complicated. Have you ever tried to identify which phone is running from which line or where the signal is coming from in the first place? That takes a lot of work, and no doubt the technicians of old remember crawling through ducts trying figure out where a line was broken.

Voice over IP is a great new way of communicating, and as such many businesses and individuals have taken to using it. The biggest difference is that VoIP works through an internet connection or even a cable connection. Essentially it rids you of the need to pay for both a phone line and your phone package.

FIXTEL offers one of the widest ranges of IP based phones for businesses, and they have packages for everyone. From the small business to the worldwide enterprise, there is a package and a plan that will fit your needs. No matter which package you need though, there are a number of features that you will be able to get.

For instance, you will always have the ability to hold a business meeting whether you are on or off the premises. Mobility is in high demand, and as such it is the number one service that most suppliers, including Nortel are going to provide.

FIXTEL even offers video conferencing, which is something that was not quite as efficient when using POTS (Plain Old Telephone Service). Luckily when you are using VoIP, there are more possibilities than ever before. One of the best parts is the ability to reach your people whenever you need to.

The ability to route your office phone to your mobile phone will ensure that you are never out of touch with the home office. Once again, it\’s all about mobility. You can plainly see that there are many new possibilities with phones these days. At one time they were only used for calls in and out of the office, but these days they are relied on far more. They have become complex, and quite indispensable. The only thing that can stop you is the price.

The expense is probably worth it to most businesses, even if it could be in the fifty thousand pound range. You will find that nearly any investment you make for this system will be almost entirely returned before you know it. FIXTEL website will have more information regarding their various packages, so make sure you check it out today. Get rid of that old telephone system you\’ve been relying on and enjoy a greater level of communication.

PRODUCTS AND SERVICES OFFERED:

• PHONE SYSTEM
• VOICE & DATA CABLING
• ELECTRICAL CABLING
• SECURITY SYSTEM INSTALLATIONS
• SATELLITE INSTALLATIONS AND CONSULTANCY
• IT SERVICES
• FIBRE OPTICS INSTALLATIONS

Website: www.fixtel.com or call us 1300-85-95-20 email info@fixtel.com

Fiber optics communication systems have certainly developed the telecommunications industry and because of its advantages over electrical transmission, copper wire communications in core networks have been replaced by optical fibers. How it works is fiber optics are long, thin strands of pure thin glass that are arranged in bundles referred to as optical cables that are used to transmit light signals over long distances. Consisting of three layers, the inner core will carry the light from the sender to the receiver, while the next level of layer reflects the light back on to the core to make sure none is lost and finally an outer layer will protect the light signal from environment.

In general fiber optics is recommended for systems that require higher bandwidth across longer distances because it accommodates smoother than electrical cabling. With minimum number of amplifiers these fiber optics calbles can carry the amount of data carried in many electrical wires. When fiber cables run alongside each other for long distances, they don’t experience crosstalk unlike some types of electrical transmission lines. Several miles of optical cable could be cheaper than copper wire saving your provider and you money. Fiber optics is thinner which is why unlike electrical signals in copper wires; light signals from one fiber do not interfere with those of other fibers in the same cable which results in clearer reception. The loss of signal is also less in fiber optics than in electrical copper wires which is why lower-power transmitters can be used instead of the high-voltage electrical transmitters.

Since its suitability to be used in digital signals, optic fiber are mostly used in the telecommunication aspects. Due to the flexibility of fiber optics usages today it is often seen in almost any industry.

FOR FIBRE OPTIC AND UNDERGROUND CABLING INSTALLATION:

CONTACT OUR EXPERT! : FIXTEL

website: www.fixtel.com.au

email: info@fixtel.com.au

Structured Cabling Installation
Technicians certified in terminating CAT 5, CAT5E and CAT6 cable
Complete Computer Network Design and Installations

Whether moving premises or starting the construction process EveryTel can assist you with designing and installing your structured voice and data cabling network, or can audit and document the network you have inherited from previous building occupants. Switching equipment is only as good as the network it runs across and in plenty of cases state of the art equipment can be deemed useless as the customer’s network is of sub-standard quality usually due to poor installation practices. In most instances a network audit can help identify and diagnose the cause of these faults. Through the auditing process a list of faults can be documented and repaired making your network more efficient and reliable.

EveryTel is at the forefront of structured cabling network design and construction. All our technicians are ACA licensed and are endorsed master installers of ADC Krone cabling products. Everyone has specific network requirements to suit their business and a secure network is often a mandatory requirement. We can help advise you of the best cabling solution tailored to your needs at the most cost effective price.

Underground Cabling and Aerial Cable Installation
If you have multiple buildings on the one site and require communication links between these buildings. EveryTel can install underground or aerial cable. Our technicians are all experienced in underground cable jointing and are accredited installers.

Optic Fibre Cabling and Optic Fibre Installation
Other Optic Fibre Services: Optic Fibre Testing / Optic Fibre Repairs / Optic Fibre Splicing

Optic fibre, over time, has become a large part of local area network and carrier network in Australia. With today’s technology requiring more bandwidth than ever, optic fibre is one of the solutions that can give a network a much greater capacity to carry high amounts of data with minimum cost. As opposed to traditional copper networks, optic fibre has the ability to push the same amount of bandwidth through a single cable in comparison to that of multiple copper cables. EveryTel can assist you with all your optic fibre requirements. From switching equipment right down to the type of optic fibre cable you require for a specific project. All our technicians have their ACA optic fibre endorsements and are all experienced in terminating and splicing methods. All of our equipment is carrier graded and is calibrated on a regular basis to ensure your optic fibre network is fault free and of the highest quality.

PSTN Lines / TV Points and Cabling Phone Systems
• Residential & Commercial Cabling
• Phone Points / Telstra Lines
• Data Points / Office and Home Data Networks
• TV Points / Coaxial Cabling
• Internet Broadband Cabling

From big jobs to small, EveryTel certified technicians have handled work in homes, apartments, offices, government institutes, professional offices and industrial sites.

Our professional approach means that you will know what to expect from your technician, when you can expect to see him what will be required from you.

We pride ourselves on leaving the site as we found it and take extra care when working in peoples homes and offices to ensure that we are clean and tidy and leave no unwanted evidence of our visit.

PABX Phone Systems Installations
A correctly installed and supported phone system is an essential tool for any business.

EveryTel Business Communications experts can correctly install your phone system to allow you to provide the best possible service to your customers. We can also discuss your requirements with you to make sure you have the most appropriate system for your needs.