Avaya S8700 Series, Руководство по обслуживанию

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Alarms, Errors, and Troubleshooting
555-233-143 4-4 Issue 1 May 2002
Electrostatic Discharge
To avoid system damage or service disruption from ESD while a circuit pack is
inserted or removed, attach a grounding wrist strap to the cabinet, and wear it.
Also, use a wrist strap while touching any component inside a system’s cabinet,
(including EMERGENCY TRANSFER switches). Although poor ESD grounding
may not cause problems in highly controlled environments, damage or disruption
can result in less ideal conditions (for example, when the air is very dry).
If you must proceed when a wrist strap is unavailable, grab the outside panel of
the cabinet with one hand before touching any components, and keep your extra
hand grounded throughout the procedure.
Handle a circuit pack only by its faceplate, latch, or top and bottom edges. Do not
touch a board’s components, leads, or connector pins. Keep circuit packs away
from plastic and other synthetic materials such as polyester clothing. Do not
place a circuit pack on a poorly conductive surface, such as paper. If available,
use an anti-static bag.
!
WARNING:
Never hand a circuit pack to someone who is not also using a grounding
wrist strap.
!
WARNING:
People collect potentially damaging amounts of static electricity from many
ordinary activities. The smallest amount of ESD we can feel is far above the
threshold of damage to a sensitive component or service disruption!