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...fibre optic devices and cable to filter the strength of the fibre optic signal. Depending on the type of attenuator attached to the devices at each end of the fibre optic cable, you can diminish the strength of the light signal a variable amount, me...
Fibre optic cable construction • Fibre optic cable construction • Core • This is the physical medium that transports optical data signals from an attached light source to a receiving device. The core is a single continuous strand of glass or p...
...Shielded vs. unshielded cables • Shielded vs. unshielded cables • The environment determines whether cable should be shielded or unshielded. Quiet office environments, busy retail establishments, and individual workshops all require different levels...
...Fibre • Multimode fibre cable has a large-diameter core and therefore has multiple modes of propagation—that is, several wavelengths of light are used in the fibre core. It’s primarily used for lighter- capacity or shorter-distance applications. • M...
...wire pairs within a cable. Alien Crosstalk, in 10-GbE systems, is the measurement of the signal coupling between wire pairs in different, adjacent cables. • Factors that affect Alien Crosstalk • The amount of ANEXT depends on a number of factors...
PREMIUM ETHERNET CABLES • For performance designed to last • the lifetime of your cabling system • Premium Ethernet Cables • For performance designed to last the lifetime of your cabling system, choose Black Box Premium Cables. Our premium copper ...
...required. Copper-wire cable can be video coax, miniature coax, or, most commonly, shielded twisted pair with a DB9 or HSSDC connector. Fibre choices include 62.5- or 50-µm multimode and 7- or 9-µm single-mode fibre, all with an SC connector. • Oth...
...cabling is good, solid cable for 100-Mbps LANs. The Category 5 standard has been around since 1991, so it’s well established. You’ll find existing Category 5 installations everywhere. What can Category 5 cable do, and what can’t it do? • If you sti...
...of the most important cable measurements is Near-End Crosstalk (NEXT). It’s signal interference from one pair that adversely affects another pair on the same end. Crosstalk occurs between adjacent wire pairs (“pair-to-pair NEXT”). In addition, all...
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