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Polishing fiber is the final stage in preparing an optical fiber connector, ensuring a smooth, scratch-free end face that allows for minimal signal loss and optimal light transmission. The procedure begins after the fiber has been cleaved and secured in a connector ferrule using epoxy or a mechanical fit. Once the adhesive cures, the protruding…
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WDM (Wavelength Division Multiplexing) is a method of combining multiple optical signals onto one fiber strand by assigning each signal a unique wavelength. These wavelengths act like separate channels, allowing parallel transmission of data without interference. This dramatically increases the capacity of fiber networks without laying additional fiber. Each signal is generated by a laser…
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Passive Optical LAN (POL), also known as Passive Optical Local Area Network—is a high-performance, energy-efficient alternative to conventional Ethernet LANs. It’s built on Passive Optical Network (PON) technology, which uses fiber optic cables and unpowered optical splitters to deliver data from a central source to multiple user endpoints. Unlike traditional LANs that rely on switches…
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A satellite dish system is designed to receive radio signals transmitted from communication satellites orbiting the Earth, converting them into usable data for televisions, modems, or network systems. The system is composed of several key components that work together to capture, focus, and transmit these signals efficiently. The dish, also called the parabolic reflector, is…
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Fire safety in cable installations is a critical aspect of both data center and field operations, ensuring the protection of personnel, equipment, and infrastructure. The first step toward minimizing fire risk begins with selecting the correct cable type for the environment. Plenum-rated cables, labeled CMP, are designed for air-handling spaces such as ceiling voids or…
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MoCA, or Multimedia over Coax Alliance, is a technology that allows for networking over existing coaxial cable systems in homes. It enables the use of coaxial cables to create a high-speed Ethernet connection, providing a reliable and efficient way to distribute internet access throughout a home without the need for new wiring. MoCA networks can…
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Power over Ethernet (PoE) is a networking standard that delivers DC electrical power along with data signals through standard twisted-pair Ethernet cabling (typically Cat5e, Cat6, or higher). This innovation eliminates the need for separate power cords or outlets near devices, simplifying installation and reducing infrastructure costs. PoE works by injecting power into the Ethernet cable…
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Pickaxe is an open-source software agent developed for use with Foreman.mn, a Bitcoin mining management platform. It serves as the intermediary between ASIC mining hardware and the Foreman dashboard, enabling operators to collect, transmit, and visualize real-time performance data. Running locally on a computer or server within the mining environment, Pickaxe queries miners directly to…
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An Optical Loss Test Set (OLTS) is a specialized instrument used in fiber optic networks to measure the total optical loss across a fiber link. It combines a calibrated light source and a power meter to determine how much signal is lost as light travels from one end of the fiber to the other. This…
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Plain Old Telephone Service (POTS) is the original analog telephone system that laid the foundation for modern voice communication. Operating over twisted-pair copper wires, POTS transmits voice signals as continuous electrical waveforms. It uses a circuit-switched network, meaning each call establishes a dedicated line between two endpoints, ensuring consistent voice quality. One of its defining…
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Near-End Crosstalk (NEXT) is a type of signal interference that occurs when a transmitted signal on one wire pair induces unwanted noise onto an adjacent pair at the same end of the cable where the signal originated. NEXT is most commonly encountered in twisted-pair cabling systems, such as those used in Ethernet networks. It happens…
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Transmission electron microscopy (TEM) is a powerful imaging technique that uses a beam of electrons transmitted through an ultrathin specimen to produce highly magnified images of its internal structure. TEM works by directing electrons through a sample that is typically less than 100 nanometers thick. As the electrons pass through, they interact with the atoms…
