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Circuit City Website › www.Circuit City.com › Circuit City Electrical › Circuit City Electronics Store › Circuit City Website › Circuit City Electrical › Circuit City Television › Circuit City Electronics Website › Circuit City › Circuit City Store › Circuit City .com › Circut City › Circut City Store's › Circut City .com › Circut City Website › Circuit City Rebate › Electronics Stores › Circuit City Website › www.circuit-city.com › www.circuitcity online › Consumer Electronics › Circuit City Online Store › Circuit City Rebates › Circuit City Electrical Stores › Circuit City Electrical Retailer › Circuit City Electrical Shop › Circuit City Website › Circuit City Electronics Online Shop › Circut City Online › Circuit City Online Shop › Circuit City Discounts › Circuit City Online Store in Electronics Games Movies Popular Music Classical Music Home Audio & Video DVD Players and VCRs Televisions Home Audio Portable Electronics Car Electronics Satellite TV Systems Audio and Video Accessories Audio and Video Furniture Sharper Image Camcorders and Photo Cameras and Camcorders Home Office Computers, Printers, and PDAs Peripherals and Accessories · Blank Discs and Storage · Cables and Connectors · CD-CDRW-DVD Drives · Disk Drives and Memory · Home Networking and Modems · Input Devices · Notebook Computer Accessories · PC Components and Cases · PDA Accessories · Powered Speaker Systems · Printer Supplies · Surge Protectors and UPS · Video and Sound Internet and Home Networking Wireless Phones Phones and Office Electronics Office Furniture Software Music & Movies CDs and Cassettes DVD and VHS Movies Toys and Games Kids Electronics Video Games Gift Cards Services Weekly Ad Rebates Help & Services Join Affiliates Corporate Sales Investor Info Circuit City Info Careers Boys & Girls Clubs of America National Partnership Surge Protectors and UPS Shop For Surge Protectors and UPS Basics What do you want to learn about Surge Protectors and UPS? Basics Glossary Surge Protector and UPS Basics The average computer faces more than 120 power problems each month. The cause can be as dramatic as lightning or as subtle as electrostatic discharges on dry winter days. From power surges to brownouts, your computer hardware and data are often vulnerable to factors outside of your control. Fortunately, there are a number of precautions you can take. In fact, 90 percent of surges result in mid-range energy levels for which protection can be reasonable and effective. Depending on your equipment and the level of security you need, one of the following options will fit your system’s needs. Surge Suppressors/Protectors There’s an important difference between powerstrips and a surge suppressors/protectors. A surge suppressor contains components designed to reduce the surges and spikes that pass through electrical lines to your equipment. Surges are sudden increases in electrical current, and spikes are sudden increases in voltage. The components in suppressors that reduce these surges and spikes are called MOVs (metal oxide varistors), and their job is to pass the surge or spike to the ground instead of passing it to your connected equipment. A power strip is a passive device that simply acts as an outlet multiplier and offers no surge protection. Consequently, equipment connected through a power strip is just as vulnerable to surges and spikes as equipment connected through an outlet. One common misconception about surge protection is that simply unplugging phone, cable, and other line cords during a lightning storm can eliminate power line problems. In most cases, not only does this not work, but it also creates a safety hazard. Unplugging the line cords removes the power cord’s safety ground, which leaves computers and other equipment still connected to data lines where surges also occur. Today’s new surge product designs are more problem-specific and addresses problems in areas such as data and cable lines. For example, many surge protectors now come with built-in jacks for phone, fax, modem, and cable lines that offer protection for these connections. Uninterrupted Power Supply (UPS) Sometimes, even surge protectors aren’t sufficient to protect your hardware and data — especially when the lights go out. Not only can surges, spikes, and brownouts (voltage reductions) cause lost data, but because computer components can be quite sensitive to electrical irregularities, these events can also damage the components beyond repair. A UPS is a battery-equipped device that supplies power to your system in the event of a power outage. UPS systems can power your system for a few minutes to more than two hours during a power failure, depending on the model and brand of the UPS and your connected equipment. This gives you enough time to save your data and shut down your PC and hardware properly. Many UPS systems come with software that allows you to automatically back up data and shut down hardware in the event that there’s a power outage when you’re not close to your PC. UPS systems often feature guarantees, which insure up to a set dollar amount equipment that’s damaged while correctly connected to a UPS system. You should check individual products to learn about about these agreements. Joule ratings are used for UPS systems and surge protectors to provide an idea of how much surge protection the units provide. Joules are defined as units of work or energy. Units offering joule ratings of 400 or greater are considered sufficient to provide reliable protection. The higher the joule rating, the greater the protection. Another rating to pay attention to when choosing a UPS system is the VA rating. To find out how many amps a UPS system can effectively handle at a given voltage (known as a UPS load rating), look for the (Volt-Ampere) VA needs of your computer, monitor, and all of the peripheral devices that will be attached to the UPS’ battery back-up outlets. Add these together and this total will give you the minimum VA rating to look for when choosing a UPS system. Many UPS systems range from about 300VA to well over 500VA. Automatic Voltage Regulators (AVR) UPS systems with Automatic Voltage Regulation provide the same protection benefits as standard battery backup systems, but do so without simply relying on substituting battery power. AVR ensures that your PC gets clean, constant voltage by monitoring and adjusting dangerously low and high voltage levels. When voltage levels drop too much, the AVR increases output voltage, and when voltage reaches dangerously high conditions, it decreases the level. By providing such safe and consistent voltage levels, your system will also receive the following benefits: Prevention of system lock-ups Protection of critical system components against damage from exposure to inconsistent voltage levels Less chance for data reduction because of "dirty power." Guarding against power problems is crucial to the longevity of your computer systems and integrity of data, and you can’t always rely on your power company to provide clean, consistent power. Fortunately, we offer a wide variety of protection solutions for your computer, hardware, and data. . Online shopping at Circuit City is affordable, easy and 100% secure. › www.Circuit City.com › www.Circuit City › Circuit City Electronics @ Circuit City-Online › Circuit City Electrical Stores

in Electronics Games Movies Popular Music Classical Music Home Audio & Video DVD Players and VCRs Televisions Home Audio Portable Electronics Car Electronics Satellite TV Systems Audio and Video Accessories Audio and Video Furniture Sharper Image Camcorders and Photo Cameras and Camcorders Home Office Computers, Printers, and PDAs Peripherals and Accessories · Blank Discs and Storage · Cables and Connectors · CD-CDRW-DVD Drives · Disk Drives and Memory · Home Networking and Modems · Input Devices · Notebook Computer Accessories · PC Components and Cases · PDA Accessories · Powered Speaker Systems · Printer Supplies · Surge Protectors and UPS · Video and Sound Internet and Home Networking Wireless Phones Phones and Office Electronics Office Furniture Software Music & Movies CDs and Cassettes DVD and VHS Movies Toys and Games Kids Electronics Video Games Gift Cards Services Weekly Ad Rebates Help & Services Join Affiliates Corporate Sales Investor Info Circuit City Info Careers Boys & Girls Clubs of America National Partnership Surge Protectors and UPS Shop For Surge Protectors and UPS Basics What do you want to learn about Surge Protectors and UPS? Basics Glossary Surge Protector and UPS Basics The average computer faces more than 120 power problems each month. The cause can be as dramatic as lightning or as subtle as electrostatic discharges on dry winter days. From power surges to brownouts, your computer hardware and data are often vulnerable to factors outside of your control. Fortunately, there are a number of precautions you can take. In fact, 90 percent of surges result in mid-range energy levels for which protection can be reasonable and effective. Depending on your equipment and the level of security you need, one of the following options will fit your system’s needs. Surge Suppressors/Protectors There’s an important difference between powerstrips and a surge suppressors/protectors. A surge suppressor contains components designed to reduce the surges and spikes that pass through electrical lines to your equipment. Surges are sudden increases in electrical current, and spikes are sudden increases in voltage. The components in suppressors that reduce these surges and spikes are called MOVs (metal oxide varistors), and their job is to pass the surge or spike to the ground instead of passing it to your connected equipment. A power strip is a passive device that simply acts as an outlet multiplier and offers no surge protection. Consequently, equipment connected through a power strip is just as vulnerable to surges and spikes as equipment connected through an outlet. One common misconception about surge protection is that simply unplugging phone, cable, and other line cords during a lightning storm can eliminate power line problems. In most cases, not only does this not work, but it also creates a safety hazard. Unplugging the line cords removes the power cord’s safety ground, which leaves computers and other equipment still connected to data lines where surges also occur. Today’s new surge product designs are more problem-specific and addresses problems in areas such as data and cable lines. For example, many surge protectors now come with built-in jacks for phone, fax, modem, and cable lines that offer protection for these connections. Uninterrupted Power Supply (UPS) Sometimes, even surge protectors aren’t sufficient to protect your hardware and data — especially when the lights go out. Not only can surges, spikes, and brownouts (voltage reductions) cause lost data, but because computer components can be quite sensitive to electrical irregularities, these events can also damage the components beyond repair. A UPS is a battery-equipped device that supplies power to your system in the event of a power outage. UPS systems can power your system for a few minutes to more than two hours during a power failure, depending on the model and brand of the UPS and your connected equipment. This gives you enough time to save your data and shut down your PC and hardware properly. Many UPS systems come with software that allows you to automatically back up data and shut down hardware in the event that there’s a power outage when you’re not close to your PC. UPS systems often feature guarantees, which insure up to a set dollar amount equipment that’s damaged while correctly connected to a UPS system. You should check individual products to learn about about these agreements. Joule ratings are used for UPS systems and surge protectors to provide an idea of how much surge protection the units provide. Joules are defined as units of work or energy. Units offering joule ratings of 400 or greater are considered sufficient to provide reliable protection. The higher the joule rating, the greater the protection. Another rating to pay attention to when choosing a UPS system is the VA rating. To find out how many amps a UPS system can effectively handle at a given voltage (known as a UPS load rating), look for the (Volt-Ampere) VA needs of your computer, monitor, and all of the peripheral devices that will be attached to the UPS’ battery back-up outlets. Add these together and this total will give you the minimum VA rating to look for when choosing a UPS system. Many UPS systems range from about 300VA to well over 500VA. Automatic Voltage Regulators (AVR) UPS systems with Automatic Voltage Regulation provide the same protection benefits as standard battery backup systems, but do so without simply relying on substituting battery power. AVR ensures that your PC gets clean, constant voltage by monitoring and adjusting dangerously low and high voltage levels. When voltage levels drop too much, the AVR increases output voltage, and when voltage reaches dangerously high conditions, it decreases the level. By providing such safe and consistent voltage levels, your system will also receive the following benefits: Prevention of system lock-ups Protection of critical system components against damage from exposure to inconsistent voltage levels Less chance for data reduction because of "dirty power." Guarding against power problems is crucial to the longevity of your computer systems and integrity of data, and you can’t always rely on your power company to provide clean, consistent power. Fortunately, we offer a wide variety of protection solutions for your computer, hardware, and data. Luxury Luggage - CompUSA Electronics - Sony Electronics - Argos Catalogue - Nursery Bedding - Tesco Supermarket - Circuit City - Circuit City Website Circuit City Catalogue