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ActiveScale™ X100 Installation Guide
C.3.3 Electrostatic discharge
CAUTION
Electrostatic discharge can harm delicate components inside Western Digital products.
Electrostatic discharge (ESD) is a discharge of stored static electricity that can damage
equipment and impair electrical circuitry. It occurs when electronic components are
improperly handled and can result in complete or intermittent failures.
Wear an ESD wrist strap for installation, service and maintenance to prevent damage to
components in the product. Ensure the antistatic wrist strap is attached to a chassis ground
(any unpainted metal surface). If possible, keep one hand on the frame when you install or
remove an ESD-sensitive part.
Before moving ESD-sensitive parts place them in ESD static-protective bags until you are
ready to install the part.
C.3.4 Power connections
Be aware of the ampere limit on any power supply or extension cables being used. The total ampere rating
being pulled on a circuit by all devices combined should not exceed 80% of the maximum limit for the
circuit.
CAUTION
The power outlet must be easily accessible and close to the unit.
Always use properly grounded, unmodified electrical outlets and cables. Ensure all outlets
and cables are rated to supply the proper voltage and current.
This unit has more than one power supply connection; both power cords must be removed
from the power supplies to completely remove power from the unit. There is no switch or
other disconnect device.
C.3.5 Power cords
Use only tested and approved power cords to connect to properly grounded power outlets or
insulated sockets of the rack's internal power supply.
If an AC power cord was not provided with your system components, purchase one that is
approved for use in your country or region.
To avoid electrical shock or fire, check the power cord(s) that will be used with the system
components as follows:
• The power cord must have an electrical rating that is greater than that of the electrical
• Do not attempt to modify or use the AC power cord(s) if they are not the exact type
CAUTION
• The power supply cord(s) must be plugged into socket-outlet(s) that is /are provided with
• The power supply cord(s) is / are the main disconnect device to AC power. The socket
current rating marked on the system components.
required to fit into the grounded electrical outlets.
a suitable earth ground.
outlet(s) must be near the equipment and readily accessible for disconnection.
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