...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...

...in different, adjacent cables. • Factors that affect Alien Crosstalk • The amount of ANEXT depends on a number of factors, including the proximity of adjacent cables and connectors, the cable length, cable twist density, and EMI. Patch panels and c...

...Optic Mode-Conditioning Cables. • Launching a single-mode laser into the centre of a multimode fibre can confuse the receiver at the other end if multiple signals are generated. Differential Mode Delay (DMD) effects create these multiple signals, wh...

...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...

...of Category 5 cables are already specifying PS-NEXT tests. Cables that meet PS-NEXT requirements should deliver superior performance and will be able to support future higher-speed transmission schemes. • Pair-to-pair NEXT measures signal ...

Attenuators • Attenuators • Attenuators filter strength of fibre optic signal • Attenuators are used with single-mode fibre optic devices and cable to filter the strength of the fibre optic signal. Depending on the type of attenuator attached ...

...to gel-filled sleeves. • Cable jacket • This is the outer layer of any cable. Most fibre optic cables have an orange jacket, although some types can have black or yellow jackets. • Learn more: • Loose-tube vs. tight-buffered fibre optic cable. •  

Shielded Ethernet Cables • Shielded Ethernet Cables • STP and S/STP • Two basic types of shielded cables are offered by Black Box and the Industry.The first group are cables with an overall shield know generically as STP. The second are constr...