Rack-mounting 21
If the Switch is installed in a 19-inch rack or closed assembly its local air
temperature may be greater than room ambient temperature.
■ The air is as free from dust as possible.
■ The Switch is situated away from sources of conductive (electrical)
dust, for example laser printers.
■ The unit is installed in a clean, air conditioned environment.
■ 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.
■ No more than four Switch units are placed on top of one another, if
the units are free-standing.
Rack-mounting The Switch is 1U high and will fit in most standard 19-inch racks.
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: If you use a shelf or support ensure that it 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 6
.
3 Insert the screws and tighten with a suitable screwdriver.
dua1740-0aaa03.book Page 21 Thursday, December 23, 2004 9:23 PM