3Com Switches/Hub Технический паспорт - Страница 3

Просмотреть онлайн или скачать pdf Технический паспорт для Переключатель 3Com Switches/Hub. 3Com Switches/Hub 8 страниц. 3com switches/hub specification sheet

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O F F I C E C O N N E C T

S W I T C H E S A N D H U B S

Fast Ethernet

Fast Ethernet is based on the Ethernet

standard yet runs at 10 times the speed

(100 Mbps). It is now one of the most

popular high-speed technologies because

of its cost effectiveness, stability, and

compatibility with existing Ethernet

LAN environments. Fast Ethernet

switching allows dedicated performance

between two devices.

The total length of cable (A+B+C

below) between two workstations

and a nonrepeater piece of equipment

(such as a switch) must not exceed

205 m (672 ft). Each cable (A, B, or C)

must not exceed 100 m (328 ft).

3Com recommends using Category 5

cables and that the cable (B) between

the Fast Ethernet hub is not longer

than 5 m (16.4 ft). This allows the

maximum hub-to-workstation cable

length (A or C) of 100 m (328 ft) to be

used, as shown.

Example:

100 m

(328 ft)

5 m

(16.4 ft)

100 Mbps link

These rules do not

apply to Fast

Ethernet switches.

You can connect

as many

OfficeConnect

switches together

100 m

as your business

(328 ft)

requires.