NEC Express 5800, User Manual

Page: 123 / 719

Hardware
123
Do not install the rack in the places listed below. Not doing so may cause some
malfunctions to occur.
Do not:
● Locate the rack in a narrow space that would prevent devices from being pulled out from the rack
completely.
● Locate the rack on a floor that cannot bear the total weight of the rack and devices mounted in the
rack.
● Locate the rack in a place where stabilizers cannot be installed or where the rack can be installed
only after proper earthquake-resistant is constructed.
● Locate the rack on an uneven or slanting floor
● Locate the rack in an area with drastic temperature change (near a heater, air conditioner, or
refrigerator).
● Locate the rack where intense vibrations may be generated.
● Locate the rack where corrosive gas may be generated (sulfur dioxide, hydrogen sulfide, nitrogen
dioxide, chlorine, ammonia, ozone, etc), moreover where t he ingredient which promotes corrosion,
conductive metal (sodium chloride, sulfur, etc.), etc. are contained in dust or air.
● Locate the rack in a place where some objects may fall on the rack.
● Locate the rack near a device that is generating intense magnetic fields (such as a TV, radio,
broadcast/communication antenna, power transmission wire, and electromagnetic crane.) If
unavoidable, contact your service representative to request proper shielding.)
● Locate the rack where the power cord of the server must be connected to an AC outlet that
shares other devices with large power consumption.
● Locate the rack next to an equipment that generates power noise (e.g., contact spark at
power-on/power-off of commercial power supply through a relay). If you must install the server
close to such equipment, request your service representative for separate power cabling or noise
filter installation.