Hazard levels for optical transmission equipment are assigned in either of the following
two ways:
•
the actual output power from the connector or fiber cut.
•
if automatic power reduction is used, the output power at the connector or fiber cut
one second after automatic power reduction takes place, provided that maximum
output and restart conditions are met.
Classification of optical telecommunication equipment
Optical telecommunication equipment is generally classified as IEC Class 1 or
FDA/CDRH Class I, because under normal operating conditions the transmitter ports
terminate on optical fiber connectors. These are covered by a front panel to ensure
protection against emissions from any energized, unterminated transmitter.
The circuit packs themselves, however, may be IEC Class 1 or 1M or FDA/CDRH
Class I or Class IIIb.
Safety
Laser product classification
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365-374-187
Issue 1, December 2005
Lucent Technologies - Proprietary
See notice on first page
1-19