Cabling, network cabling, cable Installations

Fiber Optic Cabling for Your Business – Part 2

14 Oct 2017

Fiber Optic Advantages


Cabling, network cabling, cable InstallationsAs discussed in Part 1, fiber cables provide a number of advantages that make them superior to copper cables. This includes longer distance effectiveness, greater bandwidth capacity, resistance to electromagnetic interference, safer usage, and stronger security. Part 2 will discuss how fiber optic functions, its two main types, and fiber networks.



How Fiber Optic Cables Function


Fiber optic cables transmit data through the generation of pulses of light by light-emitting diodes (LEDs) or lasers. A fiber optic cable is composed of either a single strand or several strands of glass, each measuring slightly thicker than human hair.


The core is located in every filament’s center, and it is where light travels. Covered by cladding made of a glass layer, the core is able to reflect light inward, preventing signal loss and letting light travel through the cable’s bends.



Two Main Types


There are two main types of fiber optic cabling, single mode and multimode. Using extremely thin glass filaments, single mode fiber optic uses a laser to generate pulses of light, while multimode utilizes LEDs.


By utilizing the technique of Wave Division Multiplexing (WDM), single mode fiber networks raise the volume of data traffic transmitted over a filament. Combining light at various wavelengths is termed multiplexing, while separating them is called de-multiplexing. Thus, several streams of communication can be transmitted on a single pulse of light.



Fiber Networks


The installation of the majority of fiber cabling is intended to support long distance connections between national and international geographical locations. However, a number of internet service providers (ISPs) have made investments in the expansion of fiber to provide direct access to homes in suburban neighborhoods. These are termed "last mile" installations.


FTTH (Fiber to the Home) services, such as Google Fiber and Verizon FIOS, are becoming more common. They can provide homes with gigabit (1 Gbps) internet speeds. Direct fiber cabling runs directly from a main office to a single client, providing maximum bandwidth. In contrast, shared fiber cabling is ultimately distributed among several groups of users who are in close proximity.



Progressive Office Cabling


Founded in 1986, Progressive Office’s success has been a direct result of years of commitment to seeking solutions on behalf of our clients in the Washington, D.C. and New York City areas. Efficiently working together, Progressive teams get cabling installed and operating as fast as possible while minimizing disruption and downtime. Call our toll free number (800) 614-4560 today.

Technology,Network Cabling, cables

Fiber Optic Cabling for Your Business – Part 1

8 Oct 2017

Technology,Network Cabling, cablesThe widespread use of fiber optic cabling stems from 1950s research. These studies eventually made transmitting visible images via glass filament possible. This new technology was eventually used for viewing instruments and remote illumination for surgery. Subsequently, George Hockham and Charles Kao successfully achieved data transmission through glass fiber in 1966.


Fiber optic cabling is composed of glass fiber filaments housed within insulated casing, and these cables were designed for long distance, large capacity, and high performance data networking and telecommunications. In comparison to wired cables, fiber optic has high-bandwidth capability and is capable of data transmission over longer distances. Due to these properties, fiber optic cabling is used for a great portion of telephone, internet, and cable television systems around the world.



Fiber Optic Advantages


Fiber cables provide a number of advantages that make them superior to copper cabling. Due to properties of high bandwidth and low-loss, fiber optic cabling can be utilized over much greater distances than copper cables. Fiber optic cables can run up to 2 kilometers for data networks without repeaters. This is because light can travel much further on fiber cable and still retain its strength.


Fiber optic cables have greater capacity. Through the use of multiplexers, a single fiber optic cable can have the same network bandwidth as several hundred copper cables. It is now standard for fiber cables to be rated at 10 Gbps, 40 Gbps, and 100 Gbps.


Although it has special shielding as protection against electromagnetic interference, copper network cable is still susceptible when numerous cables are close to each other. This is in contrast to the physical properties of the glass used in fiber optic cables.


Fiber optic is also safer to use than copper in volatile spaces, where sparks can lead to disaster. It also has the upper hand in terms of security because tapping fiber cable to steal data transmission is very difficult.


Part 2 will discuss how fiber optic functions, its two main types, and fiber networks.



Progressive Office Cabling


Founded in 1986, Progressive Office’s success has been a direct result of years of commitment to seeking solutions on behalf of our clients in the Washington, D.C. and New York City areas. Efficiently working together, Progressive teams get cabling installed and operating as fast as possible while minimizing disruption and downtime. Call our toll free number (800) 614-4560 today.

structured cabling,Washington DC New York City

Important Considerations for Structured Cabling

13 Sep 2017

 cables,structured cabling, Network CablingAn infrastructure for enterprise communications, structured cabling is a system of hardware and cables designed for flexibility and future capability. Complying with the Electronic Industry Alliance/Telecommunications Industry Association (EIA/TIA), conventional structured cabling meets the organization’s standards internationally. The following are three important aspects of structured cabling that every organization should consider.



Savings


Over time, IT infrastructure has become more condensed and more sophisticated, and the importance of structured cabling has grown. Structured cabling eases a company’s expansion via a design that allows the adoption of additional hardware and software. As it has consistent network architecture, structured cabling allows the simplification of maintenance and repair, decreasing costs of upkeep. A study by the International Engineering Consortium discovered that standardizing cabling components and reducing cable delivery methods decreased startup construction outlay by almost a third. Moreover, expenses for network maintenance are lowered 40%.



Trends


Structured cabling is gradually making the transition from copper cabling to fiber optic because companies desire greater speed and better air circulation for the reduction of cooling costs. Lighter and narrower cables allow an overhead system of cabling to be installed instead of raised-floor cabling. The installation and management of cabling is made easier by less cumbersome cables, and so this trend will grow over time.



Planning


Sound planning is crucial for the success of IT projects. The future number of users, their locations, and required bandwidth must be diligently considered. How PoE (Power over Ethernet) will provide power to devices via must be studied. As Wi-Fi use grows, the number of wireless access points must be determined by every enterprise. Where will cables be located inside and outside the premises? Will the structured cabling be able to cope with moves and changes within the premises? Scalability and flexibility are both important, and so the locations of furniture and server racks must be carefully planned with respect to cabling. IT staff should also understand that different types of cable have limitations as to the length of their respective runs. Finally, there may be government regulations for structured cabling that require compliance.



Progressive Office Cabling


Founded in 1986, Progressive Office’s success has been a direct result of years of commitment to seeking solutions on behalf of their clients in the Washington, D.C. and New York City areas. Efficiently working together, their teams get cabling installed and operating as fast as possible while minimizing disruption and downtime. Call their toll free number (800) 614-4560 today.

Data Cabling,Structured Cabling,Washington DC

Setting Up a Campus Network

23 Jul 2017

Data Cabling,Structured Cabling,Washington DCAcademic institutions can garner all the benefits of the Internet age by integrating information and communications technology (ICT) with their teaching and learning environments. ICT is an extension of the term for information technology (IT), emphasizing the unification of telecommunications, computers, software, storage, and audio-visual components within a network.


The quality of education can be significantly improved through the sharing of skills, resources, content, and faculty development. IT content and resources should be available to both faculty and students throughout the campus. To this end, academic institutions must establish a network in each of their campuses, achieving the same speed of data transfer at each building.


Typically, a campus network is comprised of several local area networks (LANs) that are interconnected inside a specific geographical area. Networking components, such as switches, routers, and firewalls, and transmission media, such as copper cable and optical fiber, are utilized for interconnection and communication between connected devices.



Campus Network Topology


For academic institutions like colleges or universities, a campus area network should be interconnected to various types of buildings, including administrative, academic, library, student center, hostel, guest house, sports facility, conference, technology, training, and laboratory.


A campus network will be interconnected via high-speed Ethernet cabling over optical fiber of up to 10GB capability. For the efficient processing of data and information traffic using distribution, access and core segments, tiered hierarchal architecture is utilized.


Every building, block, center, and residential complex will be connected by high-speed optical fiber cable. Moreover, every node within a building will be connected with UTP copper cable that supports gigabit speed.


The conference rooms, teaching halls, and common areas inside each campus will be Wi-Fi enabled through the deployment of 802.11 based wireless access points with central authentication, permitting secure network access via laptops, tablets, smartphones, and other Wi-Fi enabled devices.


Internet services, along with common applications, will also be installed at key locations, such as library study halls, allowing students, faculty, and staff easy access via desktop computers and laptops around the clock.



Network Cabling


When  work requires a unionized cabling group, call on Progressive Office Inc.   for your commercial Cat5e/6/6a and fiber cabling projects. Specializing in cabling for data, voice, security and the latest WiFi and LiFi solutions. Phone: (202) 462-4290

IT Support,Data Cabling,Atlanta GA

The Organizations that Set Cabling Standards

27 May 2017

Data Cabling,Network Cabling,Atlanta GAThe TIA (Telecommunications Industry Association) and the ISO (International Organization for Standardization) are the primary organizations that oversee the development of structured cabling standards for the industry. Committees formed by the IEEE (Institute of Electrical and Electronics Engineers) provide assistance through testing and setting performance specifications for various standards.


Compliance with standards ensures the functioning of systems at specified levels, backward compatibility, and a greater selection of equipment will exist. General global recognition of standards permit utilizing equipment sourced from various countries inside computer systems. Requirements for the components of optical and copper cabling including cables, assemblies, connectors, cabling spacing and pathways, administration, field testing, and installation are standardized to make worldwide acceptance possible.


Technicians in North America typically use TIA standards, while the rest of the world uses ISO standards. Examples of organizations that set regional and national standards organizations are CENELEC (European Committee for Electrotechnical Standardization), CSA (Canadian Standards Association) and JSA (Japanese Standards Association). Their standards are generally compatible with TIA and ISO.


Different terminology used by TIA and ISO Associations sometimes cause confusion because they refer to the same item. For example, what the TIA terms as Cat5e is what ISO terms to be Class D. However, adherence to standards set by TIA and ISO ensure system cabling requirements are properly implemented in the categories below.




  • Insertion Loss – Decrease of signal strength down the transmission line.

  • Return Loss – Measurement of signal reflections on the cable.

  • NEXT – Near End Crosstalk Loss due to signal coupling.

  • Propagation Delay / Delay Skew – Elapsed time for signal to reach other end of cable or the delay between signal arrival at far end on slowest and fastest cable pairs.

  • ACR – Difference between insertion loss and NEXT.

  • ELFEXT – Identical to NEXT, but for cabling system’s far end.

  • PSANEXT / PSAACRF – Power sum alien crosstalk at near end / Power sum alien crosstalk at far end.


Due to ever-increasing data rates, the efforts of the standards organizations are assuming greater importance in terms of ensuring proper system design.



Union Network Cabling


When your work requires a unionized cabling group, call on  Progressive Office Inc. for your commercial Cat5e/6/6a and fiber cabling projects. Specializing in cabling for data, voice, security and even the latest WiFi and LiFi solutions. Phone: (202) 462-4290

Structured-Cabling,Data Cabling

Common Blunders to Avoid

7 Jan 2015

CableStructured-Cabling,Data Cabling,fiber-optics networking has evolved a great deal. It is now mandatory for companies to invest in structured cabling systems that can support a complex operation. That is why many corporations have shifted to fiber optic communications from the traditional copper cabling systems. However, it is important to plan the infrastructure carefully and anticipate some problems that may come along the way.



Replacement in Stages


Doing everything hastily and simultaneously is a problem.
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Network Cabling ,Data Cabling, Fiber-optic cable,New York City

Unique Properties of Fiber Optic Cabling

30 Dec 2014

Network Cabling ,Data Cabling, Fiber-optic cableFiber optics is capable of resolving many issues in data communications. However, computer data is normally transmitted over ordinary copper cables because it's adequate at lower speeds and shorter distances. It is not advisable to utilize fiber cable in these ordinary instances because of the high costs.


Fiber is impervious to electromagnetic interference because the signals are transmitted as light impulses. That means that Electromagnetic Interference (EMI) is not possible. Light waves are not effected by magnetism. This type of impediment can happen in coaxial and Cat5/6 cables because electricity can interfere with data signals over copper wires. Magnetic fields produce electrical current and this electromagnetic Interference is noise that can scramble data.


Fiber optic cabling also is much better at providing security of data since electromagnetic fields are not emitted around optical fibers. The data is restricted within the structure of the cable making it impossible to tap signals being communicated without cutting across the fiber. Emissions can not be easily intercepted. Hence, the fiber is by far most secure channel for carrying sensitive data.


Fiber is also a “non-conductive cable” because there is no metal in its design. It's a highly purified glass fiber.  While copper is a conductive cable that can attract power surges and unwanted current. With fiber, outdoor varieties are costly because these call for special strength. Therefore, fiber optic cable is usually more cost-effective for indoor use. With copper, it is also important to get rid of the current commonly known as ground loop. The metal cable can run into signal transmission distortions due to slight transmissions in electricity.


Fiber optics also does away with threats coming from sparks. The transmission of signals can be hazardous because of this phenomenon. Although the spark itself is not dangerous, it can lead to greater problems especially in industrial and chemical plants where the air is polluted by possibly dangerous vapors. Fiber cable does not generate sparks because it carries no electrical current.


Installation of fiber is less difficult because of its small size and flexibility. And fiber optic cables can pass along the same route as electric cable without producing any noise. The size, lightness and elasticity of fiber optic cables also makes them suitable for short-term or portable installations. And they transmit signals over longer distances too. Amplifying the transmission capability of copper wire cables makes them more unyielding. Thicker copper cables are also hard to mount in spaces where the cables have to pass through cable conduits and concrete walls.


Fiber optic means higher bandwidth too. It has the capability to transmit high-speed signals over lengthy distances without repeaters, unlike copper cables. The fiber optic’s range is not infinite but it is way more than copper cable.


If you need help in figuring out the ideal cabling topology, contact us or call 202-462-4290 for a free on-site survey and proposal.



 
Network Cabling ,Data Cabling,CAT2 6A UTP

Issues to Avoid with Cat6a Cables

22 Dec 2014
Network Cabling ,Data Cabling,CAT2 6A UTPA newly popularized cable is Cat6a. It is the new “cable on the block” which has prolonged the life of copper cabling. Cat6a has the shielded twisted and untwisted pairs with different advantages and features. It supports Gigabit Ethernet up to a hundred meters. However, you need to understand and cope with several issues.

Contentions


The size of Cat6a cable is larger than Cat5e. Copper is inherently unreliable due to Bit Error Rates or BER. This is why manufacturers have designed Cat6a cables with a smaller cross-section. It takes up less space in the tray. Yet, this space is needed to minimize crosstalk between cabling pairs. The protective shield in Cat6a cable adds to the expense.

Electricity and Mechanical Facets


Aside from the electrical issues, Cat6a Untwisted Pair (UTP) is fabricated with bigger conductors. It has more rigid twists compared to Cat5e and Cat6 and these heavier conductors plus large and stiffer jacket combines to make for more difficult cable installation. Besides, the external diameter of the UTP means that the Cat6a cable takes up more room in the trays and conduits.

Electrical and mechanical issues should not be overlooked since this can affect performance. The physical stability of Cat6a is essential to its transmission performance. Cat6a can be more sensitive to degradation of signal compared to Cat5.

These may be produced by the following:



  • Cable twisting generates signal reflection.

  • Excess insertion pressure on cables can cause poor connector performance.

  • Weakness of RJ45 (communications) connectors.


For example, if the cable is wedged in a door or compressed or squeezed by a heavy object, can result in sporadic network problems which may not be easy to detect. Nevertheless, Cat6a functions at enhanced specifications compared to Cat6 UTP. Considering all of these issues it may seem that fiber cable will become the ultimate future for 10 Gigabit Ethernet. It is up to users and the market forces to make the choice.
Structured cabling,Network Cabling, Washinton DC

Continued Dominance of Structured Copper Cabling Systems

28 May 2014

Copper cablingNetwork Cabling ,Data Cabling,copper cabling system will remain dominant in the structured cabling systems industry. This conclusion is based on analysis and forecasts made by several cabling installation companies worldwide. Both copper and optic fiber cabling are used for key structured cabling systems applications like LAN, data centers, and Voice over Internet Protocol (VoIP). Optic fiber is gradually gaining in popularity, but copper cable still seems to be the major preference of most companies.

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IT Support,Data Cabling,Atlanta GA

Advantages Of Using Cat6 Cables

22 May 2014

Cat 6Category 6 or Cat 6 network copper cabling is the preferred infrastructure for Ethernet, Fast Ethernet, and Gigabit Ethernet. It has a maximum performance of 250 MHz, or 500 MHz for the more contemporary Cat6a standard. This type of cabling may be utilized for a maximum distance (end to end) of 100 meters, or 55 meters for the 10 GBASE-T networks. Aside from support for higher performance, Cat6 includes more rigid specifications for crosstalk and system noise. Although Cat6 is anticipated to surpass Cat 5 and Cat 5e cabling soon, all three cable varieties are still widely used for network installations.



Fast and Credible Performance


Most IT experts recognize this type of copper cabling for its speedy network performance due to its ability to deliver gigabit data transmission speeds. It has a parallel structure similar to Cat5 and Cat5e. These copper cables have eight wires coiled as one to form four pairs. The major difference is that one pair of the Cat 6 cable wires does not touch the others, so it can produce twice the transmission capacity of the two other models.


It is also backward compatible. The plug and port of Cat6 cable is the same as the 5 and 5e models. Thus, it can be plugged into any outlet that supports these cables. For instance, you can use the Cat 5 connection for a Cat 6 cable although it will not produce the full speed of the Cat 6 cable.



Resistance to Heat and Flexibility


Copper cables are second to silver in terms of effective conductivity, but among non-precious metals, these wires can cope with a broader load of electricity with less need for insulation. Furthermore, copper cabling has more resistance to heat, which eliminates overloading problems. They are impervious to corrosion despite their shiny surface. Copper is also more pliable, so it can be twisted without the risk of splitting. In fact, copper is used in fabricating thick wires for applications where very thin wires are required. It can also be part of an upgrade if you are looking forward to a more optimal network. Copper Cat5, Cat5e and Cat6 are the industry standards for most small to medium sized offices.


There are certain problems that deserve consideration. Such as copper cabling failure in high-performance wiring systems. Users may also need to contend with poor component performance, such as bad cable segments or connectors that do not comply with specifications. However, these problems are frequently the result of human error. So the choice of copper cabling is  still a good one.