Planning the Site and Installation
Preparing for Installation 3-9
Figure 3-3 illustrates the installation of three SmartEdge 1200s chassis in a 42-RU rack. In this installation,
6 RUs of empty space exist at the top of the rack in which you can install other equipment, such as a
terminal server.
Figure 3-3 Standard 1200s Chassis in a 42-RU Rack
Figure 3-4 illustrates the installation of three SmartEdge 1200n chassis in a 45-RU rack. In this installation,
3 RUs of empty space exist at the rack.
In either rack, the lowermost air ramp is required; the upper air ramp, which is an integral part of the
chassis, also serves as the lower air ramp for the chassis installed above it.
Caution Risk of equipment damage. In a rack that has not been stabilized, the chassis can cause a rack
to overbalance. To reduce the risk, never install the chassis in a rack that has not been
stabilized by being bolted to the floor and to the ceiling and always select a mounting position
that is suitable to the type of rack in which the chassis is being installed.