NEC N8800-164F User Manual page 23

Before Using 1-9
Rack-mount Model (R320a-E4/R320b-M4)
WARNING
Do not install the equipment on a nonconforming rack.
Install the equipment on a 19-inch rack conforming to the EIA standard. Do not
use the equipment without a rack or install it on a nonconforming rack. The
equipment may not function properly, and there is a risk of damage to physical
assets or injuries. For suitable racks, contact your sales agent.
Do not use in the spot other than the designated one.
Install this equipment in the spot where it satisfies the conditions of installation.
Installing this equipment in an undesirable spot causes negative effects on the
equipment itself and other systems. There is also a risk of a fire as well as an
injury caused by the rack that falls. Refer to the description that is attached the
rack, or contact your maintenance service agent for the detailed accounts of the
installation spot or a seismic construction.