Lucent Technologies DDM-2000 OC-3, User & Service Manual

Page: 33 / 2536

363-206-285
About This Document
Issue 3 June 2001 xxxiii
Safety Instructions
Product Safety Labels
Important safety instructions are in this manual. In addition to the instructions on
the following page, there are other safety instructions you must follow. These
instructions involve lasers, lightwave optical cable and connectors, and
precautions when handling circuit packs to prevent damage from electrostatic
discharge. This manual also contains admonishments in the form of
DANGERS ,
WARNINGS , and CAUTIONS which must be followed at all times.
These admonishments have the following definitions:
■
DANGER indicates the presence of a hazard that will cause death or
severe personal injury if the hazard is not avoided.
■
WARNING indicates the presence of a hazard that can cause death or
severe personal injury if the hazard is not avoided.
■
CAUTION indicates the presence of a hazard that will or can cause minor
personal injury or property damage if the hazard is not avoided. The
caution is also used for property-damage-only accidents. This includes
equipment damage, loss of software, or service interruption.
Other important safety instructions that you should read are in the "Operation and
Maintenance" section of this manual. Only trained personnel should perform the
procedures in that section.
The alert symbol • appears throughout this product and in this manual to alert the
user to the presence of important operating and maintenance (servicing)
instructions for the DDM-2000 OC-3 Multiplexer.
Lightwave Safety Guidelines
General Laser Information
Lightwave/lightguide systems, their associated test sets, and similar operating
systems use semiconductor laser transmitters that emit light at wavelengths
between approximately 800 nanometers and 1600 nanometers. The emitted light
is above the red end of the visible spectrum, which is normally not visible to the
human eye. Although radiant energy at near-infrared wavelengths is officially
designated invisible, some people can see the shorter wavelength energy even at
power levels several orders of magnitude below any that have been shown to
cause injury to the eye.