...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...

...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...

...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...

...6a • Category 6 and 6a Cables • Category 6 • The next level in the cabling hierarchy is Category 6 (CAT6) (ANSI/TIA/EIA-568-B.2-1), which was ratified by the TIA/EIA in June 2002. CAT6 provides higher performance than CAT5e and features more string...

...pair within a four-pair cable. TSB-67 requires that pair-to-pair NEXT be measured on all pair combinations in a cable. The worst pair-to-pair NEXT measure should not exceed the cable's specified limits. • PS-NEXT is a much more rigorous crosstalk me...

...Optic Mode-Conditioning Cable • Fibre Optic Mode-Conditioning Cable • Use Fibre Optic Mode-Conditioning Cable for Gigabit Ethernet longer than 550 meters • You can run Gigabit Ethernet over up to 2-km-long multimode fibre optic cable. However, the t...

...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...