Eye Safety Guidelines
l Eye Safety Guidelines
Optical Output Power of the System
Up to 128 channels feed into one fiber through passive optical filter modules, depending
on the configuration. Each traffic module feeds up to 4 mW into the passive optical
modules. The passive optical modules add a defined attenuation to the transmission line,
which reduces the optical output power that transmits to the network fiber cable. The
maximum output power of all possible system configurations depends on the current
product release. For more information, contact ADVA Optical Networking.
Optical Port Connection Conditions
l Used Ports — The optical ports in use must connect to a fiber-optic cable to fulfill the
specified purpose of the respective HD traffic module. The other end of this fiber-optic
cable must connect to the designated opposite port.
l Unused Ports — The optical ports not currently in use must be have a dust cover
(traffic modules)or a dust plug (pluggable transceivers) in place, which ships with the
HD equipment. The dust cover and dust plug should be left in the optical connectors
when not in use, and they are designed to withstand the specified optical output power.
Eye Safety Guidelines
All lasers that the HD system uses operate below the energy level that causes skin
burns, but they pose a real danger to the eyes. This danger is highest at optical output
ports, where the laser source is emitting energy. Invisible laser radiation can be harmful
to the human eye and injury can occur under prolonged exposure.
Eye safety for service personnel is guaranteed for both the network and client output
ports. Nevertheless, strict attention to these guidelines and cautions is important for your
protection when working with optical equipment
LASERRADIATIONWARNING
Unterminated optical connectors can emit invisible laser radiation.
The lens in the human eye focuses all the laser power on the
retina, so focusing the eye directly on a laser source — even a low-
power laser — could permanently damage the eye.
l Always wear the appropriate laser safety glasses when required. Be sure that they
meet national laser safety regulations and are applicable to the lasers within your
environment.
477 FSP 3000R7 High-Density Subshelf Guide - R17.2 - Issue:B
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