Installing The Switch Into A 19-Inch Cabinet - 3Com 4800G Getting Started Manual

3
Installing the Switch
into a 19-Inch Cabinet
Table 12 Installation methods for a switch with a width of 440 mm (17.3 in) or 436 mm (17.2 in.)
Method/ Use front
Depth mounting ears
≤300 mm (11.8 in)
✔
360 mm (14.2 in.) -
420 mm (16.5 in) -
Introduction to
Mounting Ears
I
NSTALLING THE
c
CAUTION: When you ask your sales agent to maintain the switch, you must
ensure that the dismantlement-preventive seal on a mounting screw of the 3Com
switch chassis is intact. If you want to open the chassis, you should contact the
agent for permission. Otherwise, you will bear any consequence resulting from
your actions without permission.
You can install the switch into a 19-inch standard cabinet in one of the following
four ways:
Use front mounting ears
■
Use front mounting ears and rear mounting ears
■
Use front mounting ears and a tray
■
Use front mounting ears and guide rails
■
The selection of installation methods depends on the width and depth of the
switch. For the installation methods, see Table 12.
Use front and
rear mounting ears
-
✔
✔
n
When the depth of a switch is greater than 300 mm (11.8 in), the front
■
mounting ears only secure the switch rather than bear its weight.
Guide rails purchased from 3Com apply only to standard cabinets 1,000 mm
■
(39.4 in) deep. Use other supports to substitute for guide rails in the case of
other cabinet depths.
Figure 17 shows the appearance of a front mounting ear.
S
WITCH
Use front mounting
ears and a tray
✔
✔
✔
Use front mounting
ears and guide rails
✔
✔
✔