Cisco Line Card 4500 E-Series Installation Manual page 65

Chapter 3 Installing the Switch
Note
The rack must have sufficient vertical clearance to insert the chassis. The chassis heights are as
•
follows:
–
–
–
–
–
–
Chassis height is sometimes measured in rack units (RU or just U) where 1 RU or 1 U equals 1.75 in
Note
(44.45 mm). A typical server rack is 42 RU or 42 U in height.
Caution If the equipment rack is on wheels, ensure that the brakes are engaged and that the rack is stabilized.
Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
precautions to ensure that the system remains stable. The following guidelines are provided to
ensure your safety:
• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest
component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in
the rack.
Note To maintain proper air circulation through the Catalyst switch chassis, we recommend that you maintain
a minimum 6-inch (15 cm) separation between a wall and the chassis air intake or a wall and the chassis
air exhaust. You should also allow a minimum separation of 12 inches (30.5 cm) between the hot air
exhaust on one chassis and the air intake on another chassis. Failure to maintain adequate air space can
cause the chassis to overheat and the system to fail.
OL-13972-02
All of the Catalyst 4500 E-series switch chassis are designed to install in standard 19-inch racks.
Catalyst 4503-E switch—12.25 inches (31.12 cm) (7 RU)
Catalyst 4506-E switch—17.38 inches (44.13 cm) (10 RU)
Catalyst 4507R-E switch—19.15 inches (49 cm) (10 RU)
Catalyst 4510R-E switch—24.35 inches (61.84 cm) (14 RU)
Catalyst 4507R+E switch—19.15 inches (49 cm) (10 RU)
Catalyst 4510R+E switch—24.35 inches (61.84 cm) (14 RU)
Statement 1006
Catalyst 4500 E-Series Switches Installation Guide
Rack-Mounting Guidelines
3-3