Freelance Voice Engineer

Record Protection Cable network documentation records are very important documents. Keep several backup copies of each document, whether on paper or on a computer, in different places for safekeeping. In case a copy is presented to the client, the installer must keep their own records for future work related to the project. A complete set of the paper must be kept with a “restoration kit” of the appropriate components and instructions for the tools in case of interruptions or damage to the cables. To be useful, the documentation must always be updated. This task should be assigned to a person at the facility who will be responsible for informing all parties that keep copies of the necessary updates records. The modification of the records must be restricted to prevent unauthorized changes in the documentation. Installation Planning Once the design of a fiber optic project is complete and documented, one would think that most of the design work is finished. However, that is only

Digging safely is vitally important. The risk is not only to interrupt communications but the risk of life when digging over high-voltage or gas pipes. You may encounter some obstacles during visits, where you can display posters like these. Several service companies maintain databases with information about the location of public utility equipment installed underground. You must communicate before carrying out any excavation, but you must include this equipment on a map during the design stage and recheck them before digging to ensure you have the latest information. If all this sounds confusing, it is. Each project is different and requires a careful analysis of the conditions, even before beginning to choose the fiber optic components and planning the true installation. Acquiring experience is the best way to learn. Choice of components How to choose the components for external plant installations The choice of the components of the fiber-optic network in the externa

Fiber optic component manufacturers perform extensive tests to rate the designs of their components, verify manufacturing procedures and test the products before sending them to customers. The fibers are tested to verify the dimensions (size, ovality, and concentricity of the core and the lining), performance (attenuation coefficient, bandwidth or dispersion), physical characteristics (strength, flexibility, etc.) and ability to withstand conditions environmental (temperature, humidity and many more, even for a long time). Even more stringent environmental tests are added to the cables. Connectors and splices are tested in larger batches to determine the expected average losses in normal installations. This method also applies to environmental testing of cables, but tests can be added for special applications such as vibration for use in vehicles, shipments or aircraft. The transceivers, wavelength division multiplexing, fiber amplifiers, and other fiber optic components will be tes

A fiber optic test source must be chosen that is compatible with the type of fiber being used (single mode or multimode with the appropriate core diameter) and the desired wavelength to perform the test.  Most sources are LEDs or lasers of the types that are commonly used as transmitters in existing fiber optic systems, which makes them representative of real applications and improves the usefulness of the test.  Some laboratory tests, such as measuring fiber attenuation over a range of fiber lengths, require a variable wavelength source, Typical wavelengths of the sources are 650 or 665 nm (plastic fiber), 820, 850 and 870 nm (short-wave multimode fiber) and 1300 (long-wave multimode fiber) or 1310 nm and 1550 nm (long wavelength single-mode fiber).  LEDs are typically used to test multimode fibers and lasers are used for single-mode fiber, although there is some crossing.  High-speed local area networks (LANs) that use multimode fibers can be tested with vertical-cavity and surfa

Fusion splices Fusion splices are made by "welding" two fibers using an electric arc. For safety reasons, fusion splices should not be performed in enclosed spaces such as sewers or any atmosphere that may be explosive. The equipment for performing fusion splicing, in general, is very bulky for overhead lines, so fusion splicing is generally performed on a truck or trailer specially equipped for it.  Fusion for single-mode fibers is highly automated, so it is difficult for a bad splice to be done if the fibers are cleaned and cut properly and the instructions for using the fuser correctly are followed. Fusion splices today are so good that some splices may not be detected in the graphic plots of an OTDR. Some fusion machines only perform one fusion at a time, but fiber tape fusers can splice 12 fibers at once.  The fusion splicing process Certified fiber optics installer Fiber preparation The fusion splicing process is almost the same for all automati

There are several special types of fiber optic connectors available, such as MTP multifiber connectors that are used in prefabricated cabling, for military connections, for underwater connections or for aircraft, plastic fiber optic (POF) connectors, etc. Most have been designed for specific applications and require rigorous certification tests. Some connectors, such as Mil-C-38999, are copper wire connectors adapted to hold fiber optic splints.  Many of these connectors require special cable types as well as special termination, cleaning, handling, and testing processes. Consult the manufacturer's instructions when handling this type of connector.  Connector manufacturing Most of the connectors available today use ceramic splints to hold and align the fibers. Ceramic is used because it adheres well to glass, is easy to polish and has low thermal expansion, such as fiberglass. The end of the ceramic splint sticks or crimps the connector body. The back of the connector has a

Fiber optic communications Internet The fiber-optic Internet connection service breaks down the greatest limitation of cyberspace: its exasperating slowness. The purpose of the following article is to describe the mechanism of action, advantages and its disadvantages. To navigate the worldwide network of networks, the Internet, not only a computer, a modem and some programs are needed, but also a large dose of patience. The cyberspace is a slow world to despair. A user can spend several minutes waiting for a page to load or several hours trying to download a program from the Network to their PC. This is because the telephone lines, the means used by the majority of the 50 million users to connect to the Internet, were not created to transport videos, graphics, texts and all other elements that travel from one place to another on the Net. But telephone lines are not the only way to cyberspace. Recently a service allows you to connect to the Internet through fiber optics. The o

Objectives:  In this chapter you will learn: How fiber optic data links and transmission systems work. What components are used in  transceivers. What types of sources and detectors are used in  transceivers  . The performance parameters of fiber optic transmission systems. Fiber optic data links Fiber optic transmission systems use data links that work similarly to the one illustrated in the diagram above.  Each fiber link consists of a transmitter at one end of the fiber and a receiver at the other.  Most systems operate by transmitting in one direction through one fiber and in the opposite direction through another fiber in order to have a two-way transmission.  It is possible to transmit in both directions through a single fiber but couplers are needed to do so, and the fiber is less expensive than them. Most systems use a "  transceiver  " that includes both a transmitter and a receiver in a single module.  The transmitter takes an electrical pulse

Optical fiber is ideal for cable telecommunications, allowing the establishment of local and long-range computer networks, with a minimum of loss of information along the way. Its applications are diverse in this field, allowing the obtaining of network material, fiber optic sensors (for temperature, pressure or light levels), lighting material (particularly effective since it does not require proximity to the light source), and being also useful for decoration (there are Christmas trees made of fiber optics) or as a component of translucent concrete. How does fiber optic work? The principle of operation of the optical fiber is that of Snell's Law, which allows calculating the angle of refraction of light when passing from one medium to another with a different index of refraction. Thus, within the fiber, the light beams are trapped and propagating in the core, given the physical properties of the coating and the appropriate reflection angle, transporting the information

Modernization of the OTS system of the West Siberian railway. The technical solution of EZNP RAS and CITES Telecom The active development of backbone digital communication networks of the Ministry of Railways of Russia on the basis of laid fiber-optic lines and modern equipment for channel formation and transmission creates the necessary prerequisites for the modernization of technological communication systems (OTC and OBTS). Modernization of communication networks Restructuring of the control system on w. e-transport based on the use of information technology inevitably requires a fundamental reconstruction of the existing communication network by introducing modern digital transmission systems via optical fibers and optical switching methods. The purpose of this reconstruction is to increase the channel capacity and obtain qualitatively new types and communication services. certified fiber optics installer Management of optical transport networks. The basics of managing

https://www.fieldengineer.com/skills/fiber-technician Device m. used in mounting couplings of optical communication cables. Knot fur. fastening wires of the armor of the optical cable (OK) contains intracone metal. a sleeve and a down conductor stand made at the same time with it. Inside the conical sleeve has a center. a hole with a conical section and a protrusion with thread on the outer surface. In addition, it connects to the armor cover. OK by means of a conical insert and a union nut with a stop device on a stepped inner surface interacting with the end face of the insert. The down conductor rack of each node is fur. the armor mounting has an additional conical hole and an overlay with a conical protrusion, during the force of which the ground wire is fixed. Tech. the result is an increase in the reliability of the removal of induced thunderstorm currents to the earth and the currents induced in the OK armor with electronic magn. Variational analysis of switching solitons

The method of preparing the micro trench for installation is similar to the method of laying the cable directly into the ground, with the exception of micro trench dimensions. For channel laying, a micro trench is made with a width of 100 mm and a depth of about 250 mm. 1-2 channels are laid in it, containing up to 7 subchannels for laying cables: one central and 7 peripheral. The inner diameter of the channels is 10 mm. After laying the channels, the micro trench is poured with light concrete, and then the asphalt surface is restored. To locate the couplings and the technological stock of fiber-optic cable, special micro-wells are arranged, which are plastic or metal boxes buried in the ground and embedded in the asphalt. The neck of the micro-well is closed with a lid or hatch with a lock preventing unauthorized access. The entry of channels with cables is carried out through the walls with subsequent sealing of the entry point. The coupling is fixed to the micro-well wall, and the

The book summarizes the experience accumulated by the authors for many years of creative work. The book contains the results of more than 50 completed R&D in the field of developing fiber-optic components with special properties, fiber-optic sensors of various physical quantities, instrumentation and special technological equipment for the production of fiber-optic components, object and trunk data transmission systems for various purposes, radio photonics products, fundamental standards in the field of fiber technology. The book consists of 4 chapters. The first chapter is devoted to the consideration of the modern fiber-optic component base. Particular attention is paid to the consideration of components of domestic and foreign production for harsh operating conditions. The second chapter summarizes the experience gained by the authors in the design of analog and digital fiber-optic transmission systems (FOTS) for various purposes. Particular attention is paid to the des

In order to improve the quality of its human resources, PT Telekomunikasi Indonesia, Tbk (Telkom) has established the Telkom PCC certification body. By developing its mission to become a professional certification body with international standards that excels in the regional scope, Telkom PCC carries out its duties as a Center of Certification for employees in the environment. Telkom Group and the public. To carry out this mission, Telkom PCC has become a nationally recognized TPCC Professional Certification Agency (LSP TPCC) through the National Professional Certification Board. On September 16, 2013, LSP TPCC obtained license No. Kep.367 / BNSP / IX / 2013 for the competency certification of Fiber Optic Installation Techniques (TIFO). As a pioneer for the certification of the TIFO field, Telkom has shown its contribution in supporting the readiness of the Indonesian people to face the 2015 Asean Economic Community. The certificate was handed over by Telkom's Director of