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Chapter 2
Installing the Appliance and Back-End Storage
13
Proper Grounding Technique
You must maintain reliable grounding of this equipment. Review specifications in
Appendix A to determine the appropriate AC branch circuit size for the quantity of
units in your configuration and your operating voltage. Always follow your local
electrical codes for loading circuits.
Caution –
The controller unit and expansion units contain several components
sensitive to static-electrical discharge. Surges of static electricity (caused by shuffling
your feet across a floor and touching a metallic surface, for example) can cause
damage to electrical components. It is important that proper grounding techniques
be observed.
■
Transport products in static-safe containers.
■
Cover workstations with approved static-dissipating material.
■
Wear a wrist strap, and always be grounded when touching static-sensitive
equipment or parts.
■
Use only grounded tools and equipment.
■
Avoid touching pins, leads, or circuitry.
Avoiding Damage to Internal Components
■
For the controller unit and expansion units, make sure that the power switch is
turned off and that both power cables are plugged in.
■
Wear a wrist strap, and always be grounded when touching static-sensitive
equipment or parts. If a wrist strap is not available, touch any unpainted metal
surface on the back panel of any unit to dissipate static electricity. Repeat this
procedure several times during installation.
■
Avoid touching exposed circuitry, and handle components by their edges only.
Caution –
Do not power on any units until after you have connected the Sun
StorageTek 5220 NAS Appliance to the network.
Grounding the Rack During Installation
The safe ground conductor provides proper grounding only for the Sun StorageTek
5220 NAS Appliance. You must provide additional proper grounding for the rack
and other devices installed in it.
■
Include a third-wire safety ground conductor with the rack installation to avoid
the potential for an electrical shock hazard.
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