6
Preparing for installation
Safety recommendations
ARNING!
Before installation and operation, read all of the safety instructions in the
Compliance and Safety
Guide
supplied with your router.
General safety recommendations follow:
• Turn off all power and remove all power cables before opening the chassis.
• Unplug all power and external cables before moving the chassis.
• Before installation, locate the emergency power switch so that you can shut off power immediately if
necessary.
• Always wear an ESD-preventive wrist strap when installing the device.
• Do not stare into an open optical interface. The light can cause permanent eye damage.
• Use a good grounding system. This is essential for reliable operation.
• Confirm that the resistance between the chassis and the ground is less than 1 ohm.
Site requirements
The router can only be used indoors.
This section provides information about temperature, humidity, cleanness, and air quality requirements, as
well as rack-mounting requirements and protection against damage from lightning and EMI.
Table 2 Temperature and humidity requirements
Tem
erature Relative humidit
0°C to 45°C (32°F to 113°F) 5% to 90%
Table 3 Dust concentration limit in the equipment room
Substance Concentration limit (
articles/m3)
Dust particles
≤ 3 x 10
4
(No visible dust on desk in three days)
NOTE:
Dust particle diameter ≥ 5 μm
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