363-208-011
General Information
Issue 4 February 1997 1-4
A grounded person must never hand an unprotected circuit pack to a person who
is ungrounded. A static discharge from the ungrounded person through the circuit
pack to the grounded person could cause an ESD induced failure. All persons and
equipment at a work location must be at common ground potential to be static-
safe.
Do not rub or wipe circuit packs containing IC’s to clean them or their gold fingers
unless both the individual and the circuit pack are the same ground potential.
Work areas must be kept clear of common plastics, a major source of static
electricity. When rubbed or handled, these plastics produce a static charge that
will not readily dissipate when grounded. These plastics must not make direct
contact with IC’s or circuit packs. Common plastic materials in this classification
include polystyrene packing containers, clear plastic bags, plastic drinking cups,
food wrappers, notebooks, and nonconductive plastic solder suckers. (The plastic
insulation on small hand tools does not represent a static hazard.)
Put the circuit pack into an antistatic bag or carton immediately after removing it
from a frame. Keep adhesive tape (i.e., transparent or masking) away from the
circuit packs.
Never place circuit packs on ungrounded metal shelving or on ungrounded
portable carts without insulated surfaces.
Lightwave Safety
An Lucent Technologies lightwave digital transmission system and associated
optical test sets use semiconductor laser transmitters. The lasers emit lightwaves,
at or near infrared wavelengths, into lightguide cables. This light is at the red end
of the visible spectrum.
Although, at present, the transmitter power levels are below those known to cause
injury to the eye (for example, from a direct inadvertent exposure to the end of an
energized fiber), direct exposure at close distances should be avoided.
!
CAUTION:
Never view any unterminated optical connector with optical instruments
other than indirect image-converting devices such as the
FIND-R-SCOPE
*
,
since viewing optics tend to collimate the energy from an optical connector
and, hence, increase the potential risk for injury. Personnel performing these
procedures must be trained in laser safety
* Registered trademark of FJW Optical Systems, Inc.
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