Gateway E-4400 User Manual download pdf (Page 63)

Managing Your System

When purchasing a surge suppressor:

■

Make sure the surge suppressor meets the appropriate product safety

certification for your location, such as Underwriters Laboratories (UL) or

Conformite European (CE).

■

Check the maximum amount of voltage the suppressor allows to pass

through the line. The lower the voltage that the suppressor allows to pass

through, the better the protection for your system.

■ Check the energy absorption, or dissipation, rating. The higher the energy

absorption rating, the better the protection for your system.

■

Check for line-conditioner capabilities. A line conditioner smooths out

some of the normal line noise (small voltage fluctuations) of an electrical

supply.

Line conditioners

A line conditioner protects your system from the small daily fluctuations in

voltage from an electrical supply. Most systems can handle this variation, or

line noise, without problems. However, some electrical sources include more

line noise than normal. Line noise can also be a problem if your system is

located near, or shares a circuit with, a device that causes electromagnetic

interference, such as a television or a motor.

Some surge suppressors and uninterruptible power supplies include simple

line-conditioning capabilities.

Uninterruptible power supplies

You may lose data during a total power failure. A standby Uninterruptible

Power Supply (UPS) uses a battery to keep your system running during a power

failure. The UPS lets you shut down your system normally, but cannot run

the system for an extended time.

If you purchase a standby UPS, make sure the UPS includes surge suppression

and line-conditioning features.

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Gateway E-4400 User Manual Page 63