1
Preparing for installation
Safety recommendations
WARNING!
Before installation and operation, read all of the safety instructions in
Compliance and Safety Guide
supplied with your router.
Follow these general safety recommendations:
•
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 wrist strap when installing the router.
•
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.
•
Make sure the resistance reading between the chassis and the ground is less than 1 ohm.
Examining the installation site
The H3C MSR900-E router can only be used indoors. To ensure that the router can operate correctly
and prolong its service lifetime, the installation site must meet the following requirements.
Temperature and humidity
Table 1
Temperature and humidity requirements
Temperature Relative
humidity
0°C to 40°C (32°F to 104°F)
5% to 90%
Cleanliness
Table 2
Dust concentration limit in the equipment room
Substance
Concentration limit (particles/m
3
)
Dust particles
≤
3 x 10
4
(No visible dust on desk in three days)
NOTE:
Dust particle diameter
≥
5
μ
m
