Rosewill Computer Case 422 Información técnica descargar pdf (Pagina 76)

Uninterruptible Power Supply (UPS)

159

Disassembly

and Power

To install a UPS, perform the following steps:

1. Connect the UPS to a wall outlet and power it on. When a UPS is first plugged in, the

battery is not charged. See the UPS manufacturer’s installation manual for the specific

time it will take to charge.

2. Power off the UPS.

3. Attach device power cords, such as the PC, to the UPS. Ensure that the UPS is rated to

supply power to the number and type of connected devices.

4. Power on the UPS.

A UPS has a battery inside that is similar to a car battery (except that the UPS battery is

sealed). Because this battery contains acid, you should never drop a UPS or throw it in the

trash. Research your state’s requirements for recycling batteries. All batteries fail after some

time, and most UPSs have replaceable batteries.

UPS troubleshooting is not difficult. In addition to following the manufacturer’s recom-

mendations for troubleshooting, try the following guidelines:

• If a UPS will not power on, check the on/off switch. Verify that the UPS is attached to an

electrical outlet. Ensure that the outlet has power and that the circuit breaker for the

outlet has not been tripped. Ensure that the battery is installed properly.

• Check whether the UPS unit has a self-test procedure and include a self-test button.

• With some UPS units, a beep indicates that a power interruption has occurred. This is a

normal function.

• Some UPS units beep at a different rate when the battery is low. Others have a light

indicator to indicate that it’s time to recharge or replace the battery.

• If a UPS is overloaded—that is, has too many devices attached—the UPS may shut off,

trip a circuit breaker, beep, or turn on a light indication for this problem.

Figure 4.34 shows the front of an American Power Conversion UPS. Notice the diagnostic

lights on it.

Diagnostic

lights

Figure 4.34 Front of an American Power Conversion UPS

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Rosewill Computer Case 422 Información técnica Pagina 76