Black Box DESKTOP TELCO Especificaciones descargar pdf (Pagina 6)

Ethernet Standards

Network Standard IEEE Cable Speed Distance

Ethernet 10BASE5, 2 802.3 Coaxial 10 Mbps 500 m/185 m

10BASE-T 802.3i CAT3 10 Mbps 100 m

10BASE-F, -FB, FL, FP 802.3 Fiber 10 Mbps 2000 m/500 m

Fast Ethernet 100BASE-TX, T4 802.3u CAT5 100 Mbps 100 m

100BASE-FX 802.3u MM Fiber 100 Mbps 400 m half-duplex,

2 km full-duplex

Gigabit Ethernet 1000BASE-T 802.3ab CAT5e/CAT6 1000 Mbps 100 m

1000BASE-LX 802.3z MM, SM Fiber 1000 Mbps 550 m/5000 m

1000BASE-SX 802.3z MM Fiber 1000 Mbps 550 m

10-Gigabit Ethernet 10GBASE-SR, -LR, LX

-ER, -SW, -LW, -EW 802.3ae MM, SM Fiber 10 Gbps 65 m to 40 km

10GBASE-CX4 802.3ak 100-Ω Twinax 4 x 2.5 Gbps 15 m

10GBASE-T 802.3an UTP 10 Gbps 100 m

Most likely, the network you use now and in the future will be

some form of Ethernet. It’s the most common network type, and it’s

the de facto standard in networking.

The original Ethernet networks (10BASE5 and 10BASE2) ran over

coaxial cable. An upgrade, 10BASE-T, the first vendor-independent

implementation of Ethernet, operated over unshielded twisted-pair

cable at a then speedy 10 Mbps. As technology progressed, so did

Ethernet—it went to 100BASE-TX, which runs at 100 Mbps and

specifies a minimum of CAT5 cable, although CAT5e is more common.

Black Box Guide to Structured Cabling

Section NameSection Name

Networking

Gigabit Ethernet (1 Gbps) was developed to handle backbone

and server traffic, and is now also deployed to the desktop. When

Gigabit Ethernet first appeared, fiber was crucial to running it

effectively. Later the IEEE 802.3ab standard approved Gigabit

Ethernet over Category 5 cable, although CAT5e or higher is the

norm. Today, it is one of the most commonly installed networks.

10-Gigabit Ethernet (10-GbE) brings the familiarity and cost-

effectiveness of Ethernet to high-performance networks with

a speed ten times that of Gigabit Ethernet and a frequency of

500 MHz. It supports high-bandwidth applications, such as imaging

and storage. 10-Gigabit Ethernet enables the construction of MANs

and WANs that connect geographically dispersed LANs. Today, the

most common application for 10-Gigabit Ethernet is as a backbone

connecting high-speed LANs, server farms, and campuses.

10-GbE over fiber was ratified in 2002. An IEEE amendment in

2006, 802.3an, approved 10-GbE over twisted pair. The TIA/EIA-568-

B.2.10 draft specifies transmission performance for Augmented

Category 6 cable. The TSB-155 addresses existing Category 6 cabling

for 10-GbE. It’s emerging as the standard to wire for now. For more

information on 10-GbE, see page 11.

Think fast.

When planning a network, think fast. Network technologies

considered cutting edge only a few years ago are now becoming

viable options for network upgrades. The shift is to Gigabit

Ethernet, 10-GbE, SANs (storage area networks), and even 40+Gbps

connections for enterprise and data center backbones.

Other networks.

Other networks exist, but

they’re uncommon. Before

the establishment of open-

architecture, standards-based

networks like Ethernet,

proprietary networks, such

as IBM

Token Ring, were

the norm.

Network applications (or the evolution of Ethernet)

TECH TIP

A short history of Ethernet —

Since 1985, when 10-Mbps

Ethernet was first standardized, demand for bandwidth and speed

has grown steadily alongside increasingly high-performance

applications—thus the standardization of 100-Mbps Fast Ethernet

in 1995; Gigabit Ethernet in 1998, and in the ratification of

10-Gigabit Ethernet in June 2002. Each step forward represents

a tenfold increase in performance.

10-Gigabit Ethernet is a logical extension

of previous Ethernet networks, which are the

predominant technology for high-performance

LANs.

1 2 3 4 5 6 7 8 9 10 11 ... 47 48

Comentarios a estos manuales

Sin comentarios

Black Box DESKTOP TELCO Especificaciones Pagina 6

Comentarios a estos manuales

Relacionado con productos y manuales para Redes Black Box DESKTOP TELCO