11Protecting from power source problemswww.gateway.comProtecting from power sourceproblemsSurge protectors, line conditioners, and uninterruptible power supplies can helpprotect your server against power source problems.Surge protectorsDuring a power surge, the voltage level of electricity coming into your servercan increase to far above normal levels and cause data loss or server damage.Protect your server and peripheral devices by connecting them to a surgeprotector, which absorbs voltage surges and prevents them from reaching yourserver.When your purchase a surge protector:■ Make sure that the surge protector meets the appropriate product safetycertification for your location, such as Underwriters Laboratories (UL).■ Check the maximum amount of voltage the protector allows to passthrough the line. The lower the voltage that the protector allows to passthrough, the better the protection for your server.■ Check the energy absorption (dissipation) rating. The higher the energyabsorption rating, the better the protection for your server.■ Check for line-conditioner capabilities. A line conditioner smooths outsome of the normal line noise (small voltage fluctuations) of an electricalsupply.Warning High voltages can enter your server through the powercord and the modem and network connections. Protectyour server by using a surge protector. If you have amodem, use a surge protector that has the appropriatetype of modem jack. During an electrical storm, unplugboth the surge protector and the modem and networkcables.