> The lower power UPS (Uninterruptable Power Supply) units are made mostly for Standby mode, as is the BE725BB. They are called Back-UPS. APC also makes on-line units which they call Smart-UPS. Your e-mail address seems to be out of the USA so I called APC ( American Power Conversion) at 1-800-800-4272 to confirm the above information.
> If the battery is charged and there is no AC power available, you can plug in your computer and turn on the UPS. Then turn on your computer and run it as long as the battery lasts. I modified an older unit to work with a car battery and during a power outage, ran my TV for more than 30 minutes to get the latest news about the outage. > For those who are interested: In stand-by mode, the line power is monitored as it passes through the unit to your computer. When a failure of power is detected, it switches to the battery which is converted to AC power for your computer. The switching is so fast your computer does not shut down (reboot) during the momentary loss of power. > In on-line mode, the UPS accepts the AC power from the line and converts it to the DC battery voltage. That voltage from the battery is then converted to the AC power supplied to your computer. The AC line power is not supplied directly to your computer. The battery units can be replaced or added without turning off the UPS or your computer by just plugging them in. (Not all units are designed to do this). If there is a line failure the UPS will continue to supply AC power to the computer until the batteries can no longer supply the power for a good AC output. --- Wally Some of you guys are so smart that I don't know what I'm doing in the same world with you. Of course, I don't know what Wally is talking about but that's all right. At first I thought he was writing about the United Parcel Service and later I realized it had something to do with a surge protector. After that "eureka" it's out of my league..--- Harold ============= PCWorks Mailing List ================= Don't see your post? Check our posting guidelines & make sure you've followed proper posting procedures, http://pcworkers.com/rules.htm Contact list owner <[EMAIL PROTECTED]> Unsubscribing and other changes: http://pcworkers.com =====================================================
