H3C Technologies H3C MSR 20-1X - Manual (Page 22)

15
Checking the Rack
When installing MSR 20-1X routers, make sure that:
• There is spacing reserved at the air inlet and exhaust in the router for the purpose of heat dissipation
of the router chassis.
• The rack has a good ventilation system for heat dissipation.
• The rack is solid enough to support the weight of the device and the installation accessories.
• The rack is well-grounded.
Safety Precautions
Routers play an important role in data communications network. Please pay attention to the following
signs:
WARNING: Means the reader be extremely careful. Improper operation may cause bodily injury.
CAUTION: Means the reader be careful. Improper operation may cause data loss or damage to
equipment.
When installing or working on the router, observe the following recommendations:
• Keep the router far away from heat sources and dampness.
• Ground the router correctly.
• Wear an ESD-preventive wrist strap, making sure that the strap has good skin contact.
• Do not insert or remove interface modules or interface cards of the router when the power supply is
connected.
• Do not insert or remove a cable when the power supply is connected.
• Connect the interface cables correctly for the router. Do not connect a telephone line (including
ISDN line) to a serial port.
• Use laser with caution. Do not directly stare into apertures or fiber-optic connectors that emit laser
radiation.
• Equip an uninterrupted power supply (UPS).
Installation Tools, Meters and Equipment
Tools
• Phillips screwdriver
• Straight screwdriver
• ESD-preventive twist strap
Cables
• PGND cable and power cord
• Console cable
• Optional cables