Dell Networking S3048 Guía De Inicio página 20

• The input circuits are correctly sized for the loads and that you use
sufficient overcurrent protection devices.
• All protective covers are in place.
NOTE: A country/region-specific AC power cable is included in the
shipping container for powering up an AC power supply. You must order
all other power cables separately.
CAUTION: ESD damage can occur if the components are mishandled.
Always wear an ESD-preventive wrist or heel ground strap when
handling the S3048–ON and its components.
When the system powers up, the fans come on at high speed. The fan speed
slows as the system boots up. The power status LED blinks until the boot-up
sequence is complete. When the boot up is complete, the power status LED is
steadily lit.
AC Power
CAUTION: Ensure that the PSU is installed correctly. The AC power
connector must be on the left side of the PSU and the status LED at the
top of the PSU.
Connect the plug to each AC power connector. Make sure that the power
cord is secure.
As soon as the cable is connected between the S3048–ON and the power
source, the switch is powered-up; there is no on/off switch.
Fans
Both the fan modules and the integrated fan-power supplies are hot-
swappable if you install a second (redundant) power supply.
NOTE: To run the system, all fan slots must have operating fan units. If
you do not install a module in each slot, the system shuts down in one
minute.
NOTE: The S3048–ON supports two airflow direction options. You can
only use a single direction in a chassis; do not mix fan flow types.
• Normal is airflow from the I/O panel to the power supply.
• Reversed is airflow from the power supply to the I/O panel.
There are environmental factors that could decrease the amount of time
required between fan replacements. Check these environmental factors
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