3Com Switches/Hub Технический паспорт - Страница 6
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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®
S W I T C H E S A N D H U B S
As this front view of the
OfficeConnect Fast Ethernet Hub
8 illustrates, each OfficeConnect
unit offers a variety of LED
indicators, including an Alert
LED to allow quick monitoring
of hub and network activity.
The Alert LED gives users
immediate notification of
problems, such as excessive
network use, without requiring
special technical knowledge.
6
OfficeConnect Switches and Hubs Features
10/100 autosensing ports
Allows users to connect at either 10 Mbps or 100 Mbps to the switch or hub. The
switch or hub will operate at the highest speed possible, optimizing network per-
formance and user flexibility.
Alert LED
A unique LED present on all OfficeConnect switches and hubs provides additional
diagnostic information.
Auto MDI/MDIX
This feature, available on new OfficeConnect Dual Speed Switch 5 (3C16790) and
Switch 8 (3C16791), eliminates most common cabling problems (see MDI/MDIX
push button switch).
Compact and clippable design New, one-piece clipping system lets users connect up to four units in a stack.
External power supply
Provides more flexibility and reduces power requirements in the product, eliminating
the need for a noisy fan.
FCC Class B
Indicates that a product is certified for use in domestic as well as office environments
(more stringent classification than Class A).
Fully compatible with leading
OfficeConnect units support Novell NetWare, Microsoft Windows 95, 98, 2000,
operating systems
Windows NT, and other leading software systems, giving the widest range of back-
ward compatibility with existing office software.
Full duplex (switches only)
Automatically doubles the throughput (to 20 Mbps or 200 Mbps) when ports are
connected to other full-duplex devices or ports.
Lifetime limited warranty and
Provides complete piece of mind.
telephone support
MDI/MDIX push button switch Enables direct connection to a server, end station, or another switch or hub, using
regular straight-through cables.
Network utilization meter
Indicates how much of the network bandwidth is in use. These LEDs are continually
(available on most
updated to show when the network needs more bandwidth.
OfficeConnect hubs)
Priority queuing
Ensures that real-time applications (such as audio or video) take priority so they can
(OfficeConnect Dual Speed
run effectively, even during bursts of high traffic load.
Switches 5 and 8)
OfficeConnect LED Indicators
Alert LED
(Orange)
Alerts you to
excessive
network use
or an isolated
Power LED
(partitioned)
(Green) Indicates
10BASE-T and
that the power
100BASE-TX
supply to the
port.
unit is present.
Port Status LEDs
(Green/Yellow) Indicate the status
Duplex Indicator
of each port. If green, there is a
(Orange) If the LED is
link present at 100 Mbps. If
orange, the link is
yellow, there is a link present at
running at full duplex.
10 Mbps. If the LED is off,
If the LED is off but
nothing is connected. Flashing
there is a link on that
of an LED indicates activity
port, that link is
over that link.
running at half duplex.