3Com OfficeConnect 280 Manuale d'uso - Pagina 4

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Using the Rubber Feet and Stacking Clips

The four self-adhesive rubber feet prevent your switch

from sliding around on your desk. Stick the feet to

the marked areas at each corner of the underside of

your switch.

The four stacking clips are used for neatly and

securely stacking your OfficeConnect units together.

You can stack up to four units. Small units must

be stacked above large units. To stack your units,

secure the clips on one side and then on the other.

Use the following method to secure one side:

Place your new unit

on a flat surface.

Your clips fit in these

positions on the side

of the unit:

Position a clip over

one of these holes and

push it in until it clicks

into place. Repeat this

for the other clip

position on the same

side.

Keeping the front of

the units aligned, rest

the bottom of the

existing unit on the

clips' spikes. Push the

clips firmly into the

existing unit until they

click into place.

Repeat these steps to secure the other side.

To remove a clip, hold the units firmly with one hand

and hook the first finger of your other hand around

the back of the clip. Use reasonable force to pull it off.

Positioning Your OfficeConnect Switch

When installing your OfficeConnect switch, ensure:

It is out of direct sunlight and away from sources of

heat.

Cabling is away from power lines, fluorescent lighting

fixtures, and sources of electrical noise such as radios,

transmitters and broadband amplifiers.

Water or moisture cannot enter the case of the unit.

Air flow around the unit and through the vents in the

side of the case is not restricted. We recommend you

provide a minimum of 25mm (1in) clearance.

Wall Mounting the OfficeConnect Switch

There are two slots on the underside of the

OfficeConnect switch which are used for wall

mounting. You can mount the unit with the LEDs

facing upwards or downwards, to suit your needs.

When wall mounting the unit, ensure that it is within

reach of the power outlet.

You need two suitable screws. Ensure that the wall

you are going to use is smooth, flat, dry and sturdy.

Make two screw holes which are 142mm (5.6in)

apart. Use the guide at the top of this page to mark

the position of the holes. Fix the screws into the wall,

leaving their heads 3mm (0.12in) clear of the wall

surface.

Remove any connections to the unit and locate it

over the screw heads. When in line, gently push the

unit on to the wall and move it downwards to

secure. When making connections, be careful not to

push the unit up and off the wall.

CAUTION: Only wall mount single units. Do not wall

mount stacked units.

Connecting Workstations and Other

Equipment to Your Switch

WARNING: Ensure you have read the Important

Safety Information section carefully before you start.

ACHTUNG: Versichern Sie sich, daß Sie den Abschnitt

mit den wichtigen Sicherheitshinweisen gelesen

haben, bevor Sie das Gerät benutzen.

AVERTISSEMENT: Assurer que vous avez lu

soigneusement la section de L'information de Sécurité

Importante avant que vous commenciez.

CAUTION: Do not power the switch off and on

quickly. Wait about 5 seconds between power cycles.

All the ports on the switch have full and half duplex

auto-negotiation. This means that if the device

connected to a port supports auto-negotiation, the

highest compatible mode is negotiated. Full duplex

mode can only be achieved through auto-negotiation.