42 Setting Up Your Computerw w w . d e l l . c o m | s u p p o r t . d e l l . c o m Surge ProtectorsSurge protectors and power strips equipped with surge protection help toprevent damage to your computer from voltage spikes that can occur duringelectrical storms or following power interruptions. The level of protection isusually commensurate with the cost of the surge protector. Some surgeprotector manufacturers include warranty coverage for certain types ofdamage. Carefully read the device warranty when choosing a surgeprotector. A device with a higher joule rating offers more protection.Compare joule ratings to determine the relative effectiveness of differentdevices.NOTICE: Most surge protectors do not protect against power fluctuations orpower interruptions caused by nearby lightning strikes. When lightning occursin your area, disconnect the telephone line from the telephone wall jack anddisconnect your computer from the electrical outlet.Many surge protectors have a telephone jack for modem protection. See thesurge protector documentation for modem connection instructions.NOTICE: Not all surge protectors offer network adapter protection.Disconnect the network cable from the network wall jack during electricalstorms.Line ConditionersNOTICE: Line conditioners do not protect against power interruptions.Line conditioners are designed to maintain AC voltage at a fairly constantlevel.Uninterruptible Power SuppliesNOTICE: Loss of power while data is being saved to the hard drive may resultin data loss or file damage.NOTE: To ensuremaximum batteryoperating time, connectonly your computer to aUPS. Connect otherdevices, such as a printer,to a separate power stripthat provides surgeprotection.A UPS protects against power fluctuations and interruptions. UPS devicescontain a battery that provides temporary power to connected devices whenAC power is interrupted. The battery charges while AC power is available.See the UPS manufacturer documentation for information on batteryoperating time and to ensure that the device is approved by UnderwritersLaboratories (UL).
