Cabletron Systems MT8-MIM Especificaciones descargar pdf (Pagina 27)

Cabling Types 4-3

Ethernet Media

Ofﬁce

Ofﬁce AUI cable is a thinner cable that is more convenient to use on many

environments than standard AUI. This lighter-gauge AUI cable is made up of four

pairs of AWG 28 wire, which is thinner (at 0.26 inch) and much more easily ﬂexed,

but can only be run to a maximum distance of 16.5 meters.

Ofﬁce AUI cable is intended to be used in places where standard AUI cable would

be cumbersome and inﬂexible. Typically, ofﬁce AUI is used in locations where a

large number of workstations are concentrated in a single area.

Coaxial Cable

Coaxial cable is a cabling type where two or more separate materials share a

common central axis. While several types of networking cables could be

identiﬁed as having coaxial components or constructions, there are only two cable

types that can support network operation using only one strand of cabling with a

shared axis. These are commonly accepted as the coaxial cables, and are divided

into two main categories: thick and thin coaxial cable.

Thick Coaxial Cable

Thick coaxial cable (also known as thick Ethernet cable, “thicknet,” or 10BASE5

cable), is a cable constructed with a single solid core, which carries the network

signals, and a series of layers of shielding and insulator material. The shielding of

thick coaxial cable consists of four stages. The outermost shield is a braided metal

screen. The second stage shield, working inward, is usually a metal foil, but in

some brands of coaxial cable may be made up of a second screen. The third stage

consists of a second braided shield followed by the fourth stage, a second foil

shield. The various shields are separated by non-conductive insulator materials.

Figure 4-2. Thick Coaxial Cable Diagram

Foil Shield

Braided Shield

Insulator

Outer Jacket

Solid Core

1845n02

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Cabletron Systems MT8-MIM Especificaciones Pagina 27