Lightning Protection; Installation Accessories; Pre-Installation Checklist - H3C WX2540H Installation Manual

Use electromagnetic shielding, for example, shielded interface cables, when necessary.
•

Lightning protection

To protect the device from lightning, follow these guidelines:
Make sure the chassis is reliably grounded by using the grounding cable.
•
Make sure the grounding terminal of the AC power receptacle is reliably grounded.
•
• Install a lightning protector at the power input end.

Installation accessories

Power cable
(provided)

Pre-installation checklist

Table 4 Pre-installation checklist
Item
Installation
site
Power adapter
(provided)
Requirements
•
Ventilation
•
Temperature 0°C to 40°C (32°F to 104°F)
Relative humidity 5% to 95% (noncondensing)
•
Cleanness
•
•
•
ESD prevention
•
•
•
EMI prevention
•
•
Grounding
Rubber feet
terminal
(provided)
(provided)
There is a minimum of 10 cm (3.9 in) of clearance
around the device.
A ventilation system is available at the installation site.
Dust concentration ≤ 3 × 10
No dust on desk within three days
The device is reliably grounded.
The equipment room is dust-proof.
The humidity and temperature are at acceptable levels.
Take effective measures to protect the power system
from the power grid system.
Separate the protection ground of the device from the
grounding device or lightning protection grounding
device as far as possible.
Keep the device far away from radio stations and radar
and high-frequency devices working in high current.
Use electromagnetic shielding when necessary.
4
Grounding
Console cable
cable
(provided)
(user-supplied)
4 particles/m 3
Result