5
Introduction
1.3
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It may occur if
electronic printed circuit cards are improperly handled and may cause complete or intermittent failure.
Always follow ESD prevention procedures when removing and replacing modules:
• Ensure that the gateways are grounded.
• Wear an ESD-preventive wrist strap and ensure that it makes good contact with your
skin. Connect the wrist strap clip to an unpainted surface of the equipment or the
grounded equipment rack in order to channel away all ESD voltage safely to ground.
To guard against ESD damage and shocks, the wrist strap and cord must be in proper
working condition.
• If no wrist strap is available, and you must work with the equipment, ground yourself
by touching a metal part of the chassis.
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