I will mention however that inkjet printers dont use

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do not plug the laser printer into a protected outlet on the UPS. I will mention, however, that inkjet printers don't use nearly as much power and it's relatively safe to plug one of them into your UPS. Summary 11:46-12:05 That's it for this demonstration. This demo, we talked about implementing a UPS. We first talked about the role and function of a UPS. We talked about the process for connecting the UPS to the system, and then we went through the configuration process for the UPS, specifying what alarms are going to be generated, how much time we're going to allow the system to run on battery, as well as the voltage levels that will cause the UPS to switch over to battery. The following table lists power conditions you should be familiar with: Problem Description Surge Overvoltage that lasts seconds Spike Overvoltage that lasts milliseconds Sag Undervoltage that lasts milliseconds Brownout Undervoltage that lasts seconds (lights dim) Blackout Complete power failure The following is a description of devices used to prevent power problems: Device Description Surge protector A surge protector protects against over-voltages. A power strip provides multiple power outlets from a single plug-in, but is not necessarily a surge protector. Surge protectors can be destroyed by surges and lose their ability to protect. Consider using a surge protector with an indicator light to show whether it is working correctly. Line conditioner A line conditioner modifies the power signal to remove noise and create a smooth alternating current (AC) signal. Standby Power Supply (SPS) A standby power supply is an offline device that switches over to provide power when an undervoltage occurs. If the switchover is not fast enough, the computer loses power. Uninterruptible Power Supply (UPS) An uninterruptible power supply is an online device that is constantly providing battery power to the computer and being recharged by the wall outlet. There are two types of UPS systems: o An online UPS constantly powers the computer from the battery. o An offline UPS powers the computer from the wall power. When the power fails, a switch inside the UPS switches to power the computer from the battery. This is the most common form of UPS. UPS size is measured by the volt-amp (VA) rating. The capacity of the UPS determines the number of devices and how long the devices can run when power is interrupted. When purchasing a UPS, purchase one with enough battery power to power only critical devices such as the computer and a single monitor. o To reduce the amount of power required by the UPS, do not plug non-critical devices in to the UPS. o Laser printers require more power than most UPS systems are capable of providing. For this reason, you should not connect a laser printer to a UPS. If you must provide power to a laser printer, get a dedicated UPS for that device.
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