Dell Z9000 Руководство - Страница 23

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Power Supplies

The Z9000 supports two hot-swappable power supply units (PSUs) with integrated fans that provide

cooling for the system.

The Z9000 supports AC and DC power supplies with two air-flow directions (normal and reversed). Two

PSUs are required for full redundancy, but the system can operate with a single PSU.

NOTE: If you use a single PSU, install a blank plate in the other PSU slot. Dell Networking

recommends using power supply 1 (PSU1) as the blank plate slot.

The PSUs are field replaceable. When operating with full redundancy (two power supplies installed and

running), you can remove and replace one PSU while the other PSU is running without disrupting traffic.

WARNING: Electrostatic discharge (ESD) damage can occur if components are mishandled.

Always wear an ESD-preventive wrist or heel ground strap when handling the Z9000 and its

components.

WARNING: To prevent electrical shock, ensure that the Z9000 is grounded properly. If you do not

ground your equipment correctly, excessive emissions may result. To ensure that the power

cables meet your local electrical requirements, use a qualified electrician.

Components

The following power supply options are available for the Z9000.

•

AC power supply with integrated fan

•

AC power supply with integrated reverse flow fan

•

DC power supply with integrated fan

•

DC power supply with integrated reverse flow fan

The PSUs in the Z9000 are field replaceable. When both power supplies are installed and running, you

can remove one power supply without interrupting traffic.

Power Supply 0 (PSU0) is on the top of the Z9000; power supply 1(PSU1) is on the bottom of the Z9000

system.

WARNING: Prevent exposure and contact with hazardous voltages. Do not attempt to operate

this system with the safety cover removed.

CAUTION: Remove the power cable from the PSU prior to removing the PSU. Also, do not

connect the power cable before you insert the PSU in the chassis.

CAUTION: Be sure that the DC power source is turned off before attaching the cables to the DC

connectors on the Z9000.

Power Supplies