3Com OfficeConnect 140 Manuale d'uso - Pagina 5

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Connecting workstations and other equipment to your

switch is easy. Use 10BASE-T cables to connect any

10BASE-T workstations to any of the switch's four

10BASE-T RJ45 ports. Use a 100BASE-TX cable to connect

a 100BASE-TX workstation to the switch's 100BASE-TX

RJ45 port.

If you are using the 100BASE-TX port to connect a

workstation, ensure the MDI/MDIX switch is set to MDIX

(out).

10BASE-T and 100BASE-TX cables are very easy to use. To

connect a cable, simply slot the connector into the

relevant RJ45 port. When the connector is fully in, its

latch locks it in place. To disconnect the cable, push the

connector's latch in and remove it.

The switch detects all port connections, so you can start

using your network immediately. When you need more

ports, simply add OfficeConnect hubs.

Connecting OfficeConnect Hubs to Your

Switch

You can increase the number of workstations that can

connect to your network by adding OfficeConnect hubs.

Connecting 10BASE-T Hubs

You can connect 10BASE-T O fficeConnect hubs to your

switch using the following method, for each hub:

Co nnect port 8 of the 10BASE-T hub to any of the

switch's 10BASE-T ports (as shown in the diagram ) .

Set the MDI/MDIX switch on the 10BASE-T hub to

MDI (in) .

Correct Connections for a 10BASE-T Hub

Connecting a 100BASE-TX Hub

You can connect a 100BASE-TX OfficeConnect hub to

your switch using the following method:

Connect any port of the 100BASE-TX hub to the switch's

100BASE-TX port (as shown in the diagram). Ensure that

the port you use on the 100BASE-TX hub is an MDIX

port, this may mean setting its MDI/MDIX switch to

MDIX (out) (if using port 8).

Set the MDI/MDIX switch on the switch to MDI (in).

Correct Connections for a 100BASE-TX Hub

Checking Hub Connections

When you have connected your hubs, power on the

hubs and the switch. The Port Status LEDs for the ports

you have used on both the hubs and the switch should

be green. If they are not, check your connections and

the settings of the MDI/MDIX switches.

Spot Checks

At frequent intervals, visually check that:

The Alert LED is off — this is the best way to find out if

there are problems with your network

Case vents are not obstructed

Cabling is secure and not pulled taut

If you suspect a problem, refer to

page 7.

" Problem Solving "