3Com DUA1770-0AAA04 manual Rack-mounting

Models: DUA1770-0AAA04

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Rack-mounting

Rack-mounting 23

The air is as free from dust as possible.

The unit is installed in a clean, air conditioned environment.

No more than four Switch units are placed on top of one another, if the units are free-standing.

 

The Switch is situated away from sources of conductive (electrical)

 

dust, for example laser printers.

 

The AC supply used by the Switch is separate to that used by units

 

that generate high levels of AC noise, for example air conditioning

 

units and laser printers.

 

 

Rack-mounting

The Switch is 1.5U and will fit in most standard 19-inch racks. However,

 

as each Switch requires a shelf or runner to support its weight, you may

 

need to allow a 2U space within the rack for each Switch.

 

WARNING: The Switch should only be used in a rack if it is mounted on

 

runners, a shelf, or a tray to support the weight. The rack-mount kits

 

alone are not sufficient to support the weight of the switch. The rack-

 

mount kits must not be used to suspend the Switch from under a table or

 

desk, or attach it to a wall.

 

CAUTION: Disconnect all cables from the Switch before continuing.

 

Remove all self adhesive pads from the underside of the Switch if they

 

have been fitted.

 

CAUTION: You must use a shelf or support that will not obstruct the air

 

flow through the side panels of the Switch.

 

To rack-mount your Switch:

 

1 Place the Switch the right way up on a hard flat surface, with the front

 

facing towards you.

 

2 Locate a securing bracket over the mounting holes on one side of the

 

Switch, as shown in Figure 9.

 

3 Insert the three screws and tighten with a suitable screwdriver.

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3Com DUA1770-0AAA04 manual Rack-mounting