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Preparing for installation
Issue 3.3 February 2003 23
System precautions
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.
The Ultra 5 computer uses nominal input voltages of 100-240 V AC at 50-60 Hz. The
Ultra 5 should be powered by a non-switched, dedicated, 15-amp circuit. Sun products are
designed to work with single-phase power systems having a grounded neutral conductor
under safety precautions. To reduce the risk of electrical shock, do not plug Sun 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 2KVA minimum UPS is required for all installations. 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:
● Ultra 5 computer
● External peripherals
● Monitor
!
WARNING:
WARNING: DO NOT make mechanical or electrical modifications to the computer. Sun
Microsystems is not responsible for regulatory compliance of modified
computers.
Required tools
You need the following tools to do the installation:
● Phillips
®
#2 screwdriver
● Needle-nose pliers
● ESD grounding wrist strap
● Antistatic mat