Freelance Voice Engineer

Thanks to the development of broadband, we have long forgotten the noise of a modem that connects and the slow connection that accompanied it. With the deployment of fiber optics, the quality of Internet connection is taking a leap forward. What is it and how does it work? Broadband and very high speed connections have made communications smoother and faster. By transporting data at the speed of light, on a light signal conducted in a glass or plastic fiber thinner than a hair, optical fiber allows a throughput approximately 100 times higher than the ADSL network! This light signal can transport data over very long distances, almost without loss. What is FTTH (Fiber To The Home)? The term is used when the fiber is deployed from the optical connection node (where the operator's transmission equipment is located) to the subscriber. FTTH differs from ADSL, which uses copper networks combined with optical fiber. fiber optic installation jobs  Much faster access to the Internet, ...

To learn more about the differences between these different technologies, discover our guide dedicated to the differences between the fiber FttH, FTTLA and Fttdp . Deployment of fiber optics as part of the France Very High Speed ​​(THD) plan The Very High Speed ​​France Plan was decided in February 2013 by the government, Arcep and the help of the four operators: Orange, SFR , Bouygues Telecom and Free . It aims to cover the entire territory in Very High Speed (min speed of 30 Mbit / s) by 2022. This THD development project is based on available technologies that can reach this speed: fiber with FTTLA coaxial termination , end-to-end fiber (FttH) , THD Radio. The total investment for this major project is estimated at 20 billion euros in ten years and turns mainly to the development of optical fiber as we saw above. This sum is shared between the State, local authorities and private operators. Read more @  fiber optics certification

What is the difference between copper and fiber? Copper and fiber are two distinct technologies and should not be confused. ADSL goes through the classic copper network deployed by Orange - formerly France Telecom - in order to introduce the telephone to homes. ADSL is still the dominant technology for high-speed Internet access in France today, just as copper cable is still predominantly represented there. fiber optic technician salary Can fiber "kill" copper? The objective of generalizing fiber optics in France raises the question of the relevance of maintaining a copper network in parallel. In this regard, the public authorities have entrusted Paul Champsaur, former president of ARCEP , with a study mission on this subject. An experiment began in 2014 in the Ile-de-France municipality of Palaiseau, laboratory of a general migration towards all-optics . A highly complex subject than that of the extinction of the copper network, since compensation for the incumbent op...

Fiber optic installation technique Fiber optic cable Fiber optic installation technique Increasing amounts of data and transmission rates, increasing electromagnetic interference, and the ever-expanding size of facilities are rapidly pushing conventional copper-based technique to its limit. That is why data transmission through fiber optic cables (FO) has already become a standard in installations with high availability requirements. The fiber optic installation technique of Phoenix Contact is synonymous with solutions suitable for industrial use, easy installation, and quick maintenance. Copper installation technique Pluggable connectors Copper installation technique Compared to branch lines, plug connectors are much more flexible in PROFIBUS cabling. The bus connector can be connected and disconnected from the bus at any time without interrupting data traffic. The transmission technique according to RS-485 allows the use of both 9-pole D-SUB plug connectors and M12 circu...

Depending on the type of application they are intended for, fiber optic cables are classified into the following groups of families: a) optical cables for buried installations; b) optical cables for installations in ducts or for aerial installations by spinning; c) self-supporting optical cables for aerial installations; d) self-supporting optical cables for aerial installations in long spans; e) optical cables for network terminations; f) optical cables for indoor installations; g) optical cords; Below is a brief description of each type of cable: DIELECTRIC OPTICAL BURIED CABLE (DE): Set consisting of single-mode or multimode type optical fibers graded-index coated in acrylate, with protection elements of the basic unit, dielectric traction element, eventual fillers, and core filled with a material resistant to the penetration or propagation of moisture, protected by an internal coating of thermoplastic material, an additional polyamide coating and an outer coating of ...

The radius of curvature of the cables must not be exceeded. The fiber optic cable may break when it twists or bends too much, especially during pulling. If there are no specific recommendations of the cable manufacturer, it should not be pulled at a radius of curvature less than 20 (twenty) times the diameter of the cable. When finished pulling, the cable should not have any radius of curvature less than 10 (ten) times the diameter of the cable. Vertical cable installations Whenever possible, it is better to lay the cables vertically down than to pull them up. Cables should be fastened at frequent intervals to avoid excessive tension in the jacket. They can be fastened with cable ties (well adjusted, but not enough to deform the cable jacket) or with Kellem type fasteners. Use the storage loops to help fix the cable and to provide cable for future repairs or re-installation. Internal plant wiring with trays Many times, the fiber optic cable in the wiring in the internal plan...

The fiber optic installation is also not risk-free. The most common problem is that fiber remains to enter the eye when working with it. Although few fiber optic systems have dangerous power levels, each termination and each splice produce fragments (remains) of optical fiber that can be potentially very harmful to the eyes and skin, or that can adhere to clothing and be taken to other places, where they can cause harm to others.    These fiber fragments are small, thin and generally very sharp in the part where they split from the fiber.   These can easily pierce your skin, burying enough to make it difficult to remove them, only if they could be seen. Being transparent they practically disappear once they enter the skin. In most of the body, they can be just a nuisance, maybe they cause an infection or cause an irritating bump until they manage to get out.  Instead, around the eye can be much harder to find and remove. The tears that wet the eyes make the ...

Each loss test equipment needs test reference cables. These are 1 or 2 meter long fiber optic connection cables ( patchcord ) of the same fiber size and with the same type of cable connectors being tested. The reference cables do not need to be special cables, they should only be cables that have been tested and have little loss. Connecting wires ( patchcord ) defective give bad results, causing good fibers do not pass the tests.  Los cables de referencia deben probarse frecuentemente para asegurarse de que continúan en buenas condiciones y que tienen poca pérdida.  Tiene mucho sentido que cada equipo de prueba tenga varios juegos de cables de referencia, ya que estos se gastan o se dañan y necesitan reposición.  Long cables with intermediate splices of external plant require testing with OTDR. OTDRs are good tools for solving problems in the case of long cables in the external plant, but they are not designed to be used in short sections of cable such as those of inte...

All fiber optic equipment will need electricity where they are located. The electricity must be of high quality, must have protections against surges and spikes and, generally, must have a reserve capacity to prevent the loss of communications during a power outage. Data equipment requires a separate ground connection and adequate power supply for air conditioning throughout the year. Attention should be paid to refrigeration to reduce energy consumption. Consult with the owner of the place, the client and the relevant personnel to plan the electrical installation.  Grounding and equipotential connection All cables and conductive components must be properly connected to the ground. Earth connections must be designed in accordance with the National Electricity Code (NEC) or other applicable codes or standards. Although most fiber optic cables are not conductive, any metal hardware used in fiber optic cabling systems (such as wall terminal boxes, racks, and connection panels) mu...

Managing a fiber optic project can be the easiest part of the installation if the design and planning were done thoroughly and thoroughly. Otherwise, it can be the hardest part. However, even assuming that everything was done correctly, some things may fail, so unforeseen planning is of the utmost importance. Below are some general guidelines for managing a project that can minimize inconvenience and contribute to its rapid solution On-site supervision and management First, someone must be in charge and everyone involved must know who the boss is, including himself. During the project, the boss must be immediately available for any last-minute questions or information. Although this may seem obvious, sometimes the network user representative has other responsibilities (such as the management of the IT department) and may not want or be able to devote full attention to the project. The person in charge of the task of managing the project should be involved in it and available at al...