3Com 3C16465 - SuperStack II Baseline Switch 24 Manual del usuario - Página 2
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Numbered elements in this diagram refer to numbered sections in the text. A 24-port unit is shown.
Front Panel
1
12 or 24 RJ45 10/100 Ports
WARNING: RJ45 ports. These are shielded RJ45 data
sockets. They cannot be used as telephone sockets. Only
connect RJ45 data connectors to these sockets. Either
shielded or unshielded data cables with shielded or
unshielded jacks can be connected to these data sockets.
AVERTISSEMENT: Les ports RJ45. Il s'agit de prises
femelles blindées de données RJ45. Vous ne pouvez pas les
utiliser comme prise de téléphone. Branchez uniquement
des connecteurs de données RJ45 sur ces prises femelles.
Les câbles de données blindés ou non blindés, avec les jacks
blindés ou non blindés, l'un ou l'autre, peuvent être
branchés à ces prises de courant de données.
WARNUNG: RJ45-Datenbuchsen. Dies sind abgeschirmte
RJ45-Datenbuchsen. Sie können nicht als
Telefonanschlußbuchsen verwendet werden. An diesen
Buchsen dürfen nur RJ45-Datenstecker angeschlossen
werden. Diese Datenstecker können entweder mit
abgeschirmten oder unabgeschirmten Datenkabeln mit
abgeschirmten oder unabgeschirmten Klinkensteckern
verbunden werden.
The Baseline 10/100 Switch has 12 (3C16464) or 24 (3C16465)
MDIX ports. Each can be connected to a device with an MDI port
(such as most hubs and workstations) using a normal 'straight
through' TP (twisted pair) cable. Alternatively, you can connect to a
device with MDIX ports using 'cross-over' TP cable.
When connecting devices, you can use Category 5 unshielded or
shielded (screened) 100 Ohm TP cable; the maximum length of cable
for each connection is 100m (328ft). Connect one end of a TP cable
to an RJ45 port on the Baseline 10/100 Switch and the other end to
the appropriate RJ45 port on the device.
Each port on the Baseline 10/100 Switch is auto-sensing: its speed
and duplex mode (half duplex or full duplex) are automatically
determined by the capabilities of the connected device. Each port
can be connected to either a 10BASE-T or a 100BASE-TX device.
U
B
SE THE
ASELINE
10/100 S
If you connect two Baseline 10/100 Switch units together,
i
the link between them operates at 100Mbps full duplex.
You must use Category 5 cable when connecting the units.
CAUTION: The Baseline 10/100 Switch supports full duplex
auto-negotiation. If the connected device does not support
auto-negotiation, the Switch will operate in half duplex
mode (even if the device is operating in full duplex mode).
In such a configuration, you may notice some degradation
of network performance. 3Com recommends that you use
devices that are capable of auto-negotiation (and that you
ensure that auto-negotiation is enabled, if it is a
configurable option).
2
Traffic LEDs
The first (top) and third row of LEDs, which are colored yellow, show
the network traffic on the corresponding ports. The LED flashes
when packets are received or transmitted on the port.
3
Status LEDs
The second and fourth (bottom) row of LEDs, which are colored
green, show the link status of the corresponding ports:
On
A Link Pulse signal is being received and the segment
attached to the port is functional.
Off
The Link Pulse signal is not being received. Either
nothing is connected to the port, or there is a
problem:
3
Check that the attached device is powered on.
3
Check that the cable is the correct type and is not
faulty.
2
WITCH