Alcatel-Lucent Data Multiplexer Explore 1665, Руководство по установке

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Laser product classification Laser safety and classifications and Electrostatic
Discharge (ESD) considerations
A - 1 0
365-372-304R7.1
Issue 1, November 2007
Laser classes
The maximum output power of laser radiation depends on the type of laser diode used.
The international standards IEC-60825 or DIN/EN 60825 define the maximum output
power of laser radiation for each laser class in accordance with the wavelength.
Table A-1 Laser Classes
Hazard level assignment
Hazard level refers to the potential hazard from laser emission at any location in an end-
to-end optical fiber communication system that may be accessible during service or in the
event of a failure. The assignment of hazard level uses the AELs for the classes.
Hazard levels for optical transmission equipment are assigned in either of the following
two ways:
•
actual output power from the connector or fiber cut.
•
if automatic power reduction is used, output power at the connector or fiber cut at 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, 1M or 3R or FDA/CDRH Class I or IIIb.
Laser class Wavelength
Maximum Output Power of
Laser Radiation
1 1310 nm 8.85 mW
1550 nm 10 mW
3R 1310 nm 24 mW
1550 nm 50 mW
3B 1310 nm 0.5 W
1550 nm 0.5 W