Dell PowerEdge R620 Installation, Maintenance And Troubleshooting Manual - Page 13

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Dell PowerEdge R620 Installation, Maintenance And Troubleshooting Manual

System precautions

!
!
WARNING:
DO NOT make mechanical or electrical modifications to the computer. Dell
WARNING:
Computer Corp. is not responsible for regulatory compliance of modified
computers.
Ensure that the voltage and frequency of the power outlet used matches the electrical rating
labels on the equipment.
Wear antistatic wrist straps when handling any magnetic storage devices and printed circuit
boards.
Each power supply uses nominal input voltages of 100-240 V AC at 50-60 Hz. The computer
should be powered by an Uninterruptible Power Supply (UPS) or a non-switched,
dedicated, 20-amp circuit. Dell products are designed to work with single-phase power systems
having a grounded neutral conductor. To reduce the risk of electrical shock, do not plug Dell
products into another type of power source. Contact your facilities manager or qualified
electrician if you are unsure what type of power is supplied to your building.
A UPS provides a temporary electrical supply to a computer for several minutes, depending on
the number of components connected to the UPS. For a CMS computer, a 1.5KVA minimum is
required for each power supply. See your UPS documentation to determine the projected
amount of backup battery time for your model. If the system is without power for longer than the
backup time, the system may shut down improperly, and the customer could lose data.
Each of the following items requires a separate power cord:
Computer
●
External peripherals
●
Monitor
●
Keep in mind the following:
The room must have sufficient air conditioning capacity to support the cooling needs of the
●
entire system.
The air conditioning system must have controls that prevent excessive temperature.
●
Avaya CMS Dell R720 and R620 Computer Hardware Installation
Preparing for installation
October 2015
13