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About This Document
xlvi Issue 1 December 1997
Safety Precautions for Enclosed Systems
Under normal operating conditions, lightwave transmission systems are
completely enclosed; nonetheless, the following precautions should be observed:
1. Because of the potential for eye damage, technicians should neither
disconnect any lightwave cable nor splice and stare into the optical
connectors terminating the cables.
2. Under no circumstances shall lightwave/lightguide operations be
performed by a technician before satisfactorily completing an approved
training course.
3. Since viewing lightwave emission directly with an optical instrument, such
as an eye loupe, greatly increases the risk of eye damage, an appropriate
label must appear in plain view on the front of the main frame or lightguide
termination/interconnection equipment. The label shall read as follows:
NOTICE: UNTERMINATED OPTICAL CONNECTORS MAY EMIT
LASER RADIATION. AVOID DIRECT EXPOSURE TO THE BEAM. DO
NOT VIEW THIS BEAM WITH OPICAL INSTRUMENTS.
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