Ethernet Cabling Standards

Each IEEE Ethernet standard defines the details for supporting a particular speed over a particular type of cabling. Also, each of these definitions specifies the maximum cable length and the required features of the cabling. Tables 11-5, 11-6, and 11-7 list the pertinent details of the standards, and the cabling.

Table 11-5 Ethernet 802.3 Cabling Standards

Standard

Cabling

Maximum Length

10BASE5

Thick coaxial

500 m

10BASE2

Thin coaxial

185 m

10BASE-T

UTP CAT3, 4, 5, 5e, 6

100 m

Table 11-6 Fast Ethernet 802.3u Cabling Standards

Standard

Cabling

Maximum Length

100BASE-FX

Two strands, multimode

400 m

100BASE-T

UTP CAT3, 4, 5, 5e, 6, two-pair

100 m

100BASE-T4

UTP CAT3, 4, 5, 5e, 6, 4-pair

100 m

100BASE-TX

UTP CAT3, 4, 5, 5e, 6, or STP, two-pair

100 m

Table 11-7 Gigabit 802.3z (Optical) and 802.3ab (Electrical) Cabling Standards

Standard

Cabling

Maximum Length

1000BASE-LX

Long-wavelength laser, MM or SM fiber

10 km (SM) 3 km (MM)

1000BASE-SX

Short-wavelength laser, MM fiber

220 m with 62.5-micron fiber; 550 m with 50-micron fiber

1000BASE-ZX

Extended wavelength, SM fiber

100 km

1000BASE-CS

STP, two-pair

25 m

1000BASE-T

UTP CAT5, 5e, 6, four-pair

100 m

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