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Pre-installation checklist
Table1-4 Checklist before installation
Item
Installation
site
Requirements
•
•
Ventilation
•
•
Temperature
•
•
Relative humidity
•
•
Cleanness
•
•
•
•
•
ESD prevention
•
•
•
•
EMI prevention
•
•
•
Lightning
•
protection
•
•
•
Electricity safety
Workbench mounting—Ensure a minimum
clearance of 100 mm (3.94 in) around the air inlet and
outlet vents of the chassis.
19-inch rack mounting—Ensure a distance of 1U
(44.45 mm, or 1.75 in) between the chassis and other
devices.
A good ventilation system is available at the
installation site.
Operating:
Without drives: 0°C to 45°C (32°F to 113°F)
With drives: 5°C to 40°C (41°F to 104°F)
Storage: –40°C to +70°C (–40°F to +158°F)
Operating:
Without drives: 5% RH to 95% RH,
noncondensing
With drives: 10% RH to 90% RH, noncondensing
Storage: 5% RH to 95% RH, noncondensing
Dust concentration ≤ 3 × 10
No dust on desk within three days
The equipment, workbench, and rack are reliably
grounded.
The equipment room is dust-proof.
The humidity and temperature are at an acceptable
level.
Wear an ESD wrist strap and make sure it makes
good skin contact and is reliably grounded when
installing removable components.
Put the removed interface modules away on an ESD
workbench, with the PCB upward, or put them in ESD
bags for future use.
Touch only the edges, instead of electronic
components when observing or moving a removed
interface module.
Take effective measures to protect the power system
from the power grid system.
Separate the protection ground of the firewall from
the grounding device or lightning protection
grounding device as far as possible.
Keep the firewall far away from radio stations, radar
and high-frequency devices working in high current.
Use electromagnetic shielding when necessary.
The grounding cable of the chassis is reliably
grounded.
The grounding terminal of the AC power receptacle is
reliably grounded.
(Optional.) A power lightning arrester is installed.
Equip a UPS.
Locate the power switch in the equipment room. In
case of emergency during operation, switch off the
7
4
3
particles/m
Result
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