Cisco SNS-3500 Series Посібник з технічного обслуговування - Сторінка 5
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Maintaining the CSACS-1121, Cisco SNS-3400 Series, and Cisco SNS-3500 series Appliances
Maintaining Cisco the SNS-3415/3495 Appliance
Power Source Interruptions
Appliances are especially sensitive to variations in voltage supplied by the AC power source. Overvoltage, undervoltage,
and transients (or spikes) can erase data from the memory or even cause components to fail. To protect against these
types of problems, power cables should always be properly grounded and one, or both, of the following methods should
be used:
Place the appliance on a dedicated power circuit (rather than sharing a circuit with other electrical equipment). In
general, do not allow the appliance to share a circuit with any of the following:
—
Copier machines
—
Teletype machines
—
Laser printers
—
Fax machines
—
Any other motorized equipment
Besides the above equipment, the greatest threats to an appliance's power supply are surges or blackouts caused by
electrical storms.
If a blackout occurs—even a temporary one—while the appliance is turned on, turn off the appliance immediately and
disconnect it from the electrical outlet. Leaving the appliance on may cause problems when the power is restored.
Maintaining Cisco the SNS-3415/3495 Appliance
Caution:
To help prevent problems, before performing any procedures in this chapter, review
page 7
and the
Safety Guidelines, page 1
To maintain the Cisco SNS-3415 or Cisco SNS-3495 appliance, see Maintaining the Server Chapter in the
C220 M3 Server Installation and Service
Maintaining Cisco the SNS-3515/3595 Appliance
Caution:
To help prevent problems, before performing any procedures in this chapter, review
page 7
and the
Safety Guidelines, page 1
To maintain the Cisco SNS-3515 or Cisco SNS-3595 appliance, see Maintaining the Server Chapter in the
C220 M4 Server Installation and Service
sections.
Guide.
sections.
Guide.
5
Safety Warnings,
Cisco UCS
Safety Warnings,
Cisco UCS