Protecting Against Esd Damage - Avaya S8730 Maintaining Manual

Safety Information
• Use caution. Do not become a victim yourself.
• Turn off power.
• Send another person to get medical aid.

Protecting against ESD damage

Any system component that contains transistors or integrated circuits is sensitive to
electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge
between objects. Protect against ESD damage by equalizing the charge. The server, the part,
the work mat, and the person handling the part must all be at the same charge.
Packaging materials that contain ESD-sensitive components are usually marked with a yellow
and black warning symbol.
Caution:
You must observe proper grounding techniques to prevent the discharge of static electricity
from your body into ESD-sensitive components.
To avoid damaging ESD-sensitive components:
• Keep the parts in protective packages until they are ready to be inserted into the
product or arrive at a static-free workstation.
• Place parts on a grounded surface before removing them from their containers.
• Handle the components only after attaching a wrist strap to your bare wrist. Attach the
other end of the wrist strap to a ground that terminates at the system ground, such as
any unpainted metallic chassis surface.
• Handle a circuit board by the faceplate or side edges only. Avoid touching pins, leads,
or circuitry. Hold devices such as a hard disk drive in the same manner. The ESD-
sensitive area of these components is located on the bottom surface.
• Keep components away from plastics and other synthetic materials such as polyester
clothing. Most clothing is insulative and retains a charge even when you are wearing a
wrist strap.
• Do not hand components to another person unless that person is grounded at the
same potential level. In general, avoid contact with other people.
• Use the black side of a grounded work mat to provide a static-free work surface. The
mat is especially useful when handling ESD-sensitive devices.
• Verify that the ESD protective devices you use are ISO 9000 certified as fully effective.
8 Maintaining the Avaya S8730 Server for Modular Messaging
Caution:
Make sure that unprotected part of your hand is not in contact with the non-
component side of the board.
June 2009