H3C CR19000-16, Руководство по установке

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Power supply
Power supply system
A good power supply system is essential for correct operation of the router. The router supports AC
and DC power inputs. Make sure the equipment room meets the following requirements for the
power supply systems.
•
The AC power supply system is stable and reliable and capable of providing power required by
the router. A diesel generator is available in the equipment room as a backup power source.
•
The DC power supply system is stable and reliable and its output voltage is stable and within
the acceptable range allowed by the device.
•
Enough batteries are available to ensure uninterrupted device operation in the event of a power
failure.
Power
For the power supply system to provide power as required by the router:
•
Determine the number of power supplies based on the total power consumption of the router.
Make sure the total maximum output power of the power supplies is greater than the total power
consumption of the router.
•
Verify that the power supply system at the installation site is stable and provides power that
meets the power supply specifications, including the rated input voltage and input current.
For the power supply specifications, see "Power supplies."
Cooling
The router uses super-short cut-through ventilation aisles to provide front-to-rear airflow for heat
dissipation, as shown in
Figure1-2 .
For adequate cooling of the device, make sure the following requirements are met:
•
Plan the installation location for the router based on its airflow direction.
•
The air inlet and outlet vents of the router are not blocked and adequate clearance is reserved
around the air vents.
•
The rack for the router has a good cooling system, with the perforation rate of rack doors
greater than 50%.
•
The installation site has a good cooling system.
•
The air conditioners do not blow air directly onto the router.