Observe the following precautions when handling circuit packs/units
to prevent damage by electrostatic discharge:
•
Assume all circuit packs contain solid-state electronic
components that can be damaged by ESD.
•
When handling circuit packs (storing, installing, removing, etc.)
or when working on the backplane, always wear a grounded
wrist strap or wear a heel strap and stand on a grounded,
static-dissipating floor mat.
•
Wear working garment made of 100% cotton to avoid
electrostatic discharge.
•
Handle all circuit packs by the faceplate or latch and by the top
and bottom outermost edges. Never touch the components,
conductors, or connector pins.
•
Store and ship circuit packs and components in their shipping
packing. Circuit packs and components must be packed and
unpacked only at workplaces suitably protected against build-up
of charge.
•
Observe all warning labels on bags and cartons. Whenever
possible, do not remove circuit packs from antistatic packaging
until ready to insert them into slots.
•
If possible, open all circuit packs at a static-safe work position,
using properly grounded wrist straps and static-dissipating table
mats.
•
Always store and transport circuit packs in static-safe packaging.
Shielding is not required unless specified.
•
Keep all static-generating materials such as food wrappers,
plastics, and Styrofoam® containers away from all circuit packs.
When removing circuit packs from a shelf, immediately place the
circuit packs in static-safe packages.
•
Whenever possible, maintain relative humidity above 20 percent.
Important! Any connectors on the shelf interconnection panel
that are not cabled should be fitted with a plastic dust cap to
provide ESD protection.
Static control wrist straps
To reduce the possibility of ESD damage, the Metropolis
®
DMXplore
shelf is equipped with an ESD grounding jack to enable personnel to
ground themselves using wrist straps (
Figure 1-2, “Static control wrist
Electrostatic discharge
Safety
....................................................................................................................................................................................................................................
1 - 1 4
Lucent Technologies
365-372-333 R2.1
Issue 4, June 2005
