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CHAPTER 1
BTI7800 Series Safety Information
Optical Precautions
Copyright © 2019, Juniper Networks, Inc.
Optical Precautions on page 21
Laser Safety on page 22
Critical Site Warnings and Requirements on page 26
Critical Safety Warnings on page 28
NEBS Requirements on page 28
Terminate all laser transceiver outputs properly before connecting laser inputs.
Disconnect the input end of an optical fiber jumper cable before disconnecting the
output end.
Handle glass fiber with care. Glass fiber can be broken if mishandled.
Protect skin from exposed glass fiber. It can penetrate the skin.
The BTI7800 Series equipment should be used in a controlled access area. Limit the
number of personnel who have access to the optical transmission systems. Personnel
should be properly trained on laser safety and authorized, if access to laser emissions
is required.
Limit the use of laser test equipment to authorized, trained personnel during installation
and service. This precaution includes using optical loss test (OLT) set, optical spectrum
analyzer (OSA), and optical time domain reflectometer (OTDR) equipment.
Exclude any unauthorized personnel from the immediate laser radiation area during
service and installation when there is a possibility that the system might become
energized. Consider the immediate service area to be a temporary laser-controlled
area.
The BTI7800 Series system functions in the 850-nm to 1620-nm wavelength window
that is considered invisible radiation. Laser light being emitted by a fiber, a pigtail, or a
bulkhead connector cannot be seen by the naked eye. Use appropriate eye protection
during fiber-optic system installation or maintenance whenever there is potential for
laser radiation exposure, as recommended by the company's health and safety
procedures. Observe this precaution whether or not warning labels have been posted.
During installation or service, a broken optical fiber or non-terminated connector should
only be viewed with an indirect image converter or with a filtered optical instrument
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