User`s guide

XStack Storage User’s Guide 45
4.2.3 ESD Safety Precautions
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. Static
voltages as low as 30 volts can cause latent damage to circuitry. ESD can result in complete or
intermittent failures. Therefore, observe all standard antistatic procedures (for example, wear a
grounding strap) when handling electronic equipment and components.
Always follow ESD-prevention procedures when handling system components:
 Ensure that the chassis is electrically connected to earth ground.
 Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact.
 Connect the clip to an unpainted surface of the chassis frame to safely channel unwanted ESD
voltages to ground.
 To properly guard against ESD damage and shocks, the wrist strap must be used correctly. If
no wrist strap is available, ground yourself by touching the metal part of the chassis.
 For safety, periodically check the resistance value of the antistatic strap, which should be
between 1 and 10 megohms (Mohms).
 Do not operate the system unless all cards and faceplates are in place. Blank faceplates (filler
panels) serve three important functions:
– They prevent exposure to hazardous voltages and currents inside the chassis.
– They contain electromagnetic interference (EMI) that might disrupt other equipment.
– They direct the flow of cooling air through the chassis.
4.2.4 Lifting and Reaching Safety Precautions
To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using
the handles on modules (such as power supplies, fans, or cards); these types of handles are not
designed to support the weight of the unit. Lift the unit only by using handles that are an integral
part of the chassis, or by grasping the chassis underneath its lower edge.