NEC Express5800/R110h-1, User Manual

Page: 90 / 128

2. Installation and Connection
Express5800/R110h-1 User’s Guide
90
Chapter 2 Preparations
Do not install the rack or server under the following environment.

Narrow space

Place that cannot bear the total weights of the rack

Place where stabilizers cannot be installed

Place of uneven or slanting floor

Place of drastic temperature change (near a heater, air conditioner, or refrigerator)

Place where intense vibration may be generated

Place where corrosive gases (sulfur dioxide, hydrogen sulfide, nitrogen dioxide, chlorine, ammonia,
ozone, and so on) exist

Place where the air (or dust) includes components accelerating corrosion (sulfur, sodium chloride, and
so on) or conductive metals

Place where chemicals may be accidentally sprayed over

Place where a carpet not subject to anti-static process is laid

Place where some objects may be fallen on the rack

Place near a device generating intense magnetic field (such as TVs, radios, broadcast/communication
antennas, power transmission wires, and electromagnetic cranes) is placed

Place where the power cord of the server must be connected to an AC outlet that shares the outlet of
another device with large power consumption

Place near equipment that generates power noise, such as contact spark at power-on/power-off of
commercial power supply through a relay
The environment that satisfies the
following conditions:
<Operating>
Ambient temperature:5°C to 40°C*
Humidity: 20% to 80%
Temperature gradient: ±10°C/hour
Air pressure: 749 to 1040 hpa
<Non-operation>
Ambient temperature: 5°C to 40°C*
Humidity: 10% to 80%
Temperature gradient: ±15°C/hour
Air pressure: 749 to 1040
hpa±15°C/hour
Air pressure: 749 to 1040 hpa
*: 5°C to 45°C (when an optional kit is installed;
subject to composition restrictions)
Outlet or UPS is within reach
of the attached power cord
Attach
stabilizers
When using
multiple racks, be
sure to join them
Leave the minimum clearance
around the rack: 1 m to the
front/rear, 60 cm to the sides, and
40 cm above the top
Do not use the server in an environment where
corrosive gas is present.
100VAC bipolar grounded
outlet or bipolar outlet with
ground terminal or UPS
On a flat and solid floor