5-8
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 5 Multiplexer and Demultiplexer Cards
5.2 Safety Labels
5.2 Safety Labels
This section explains the significance of the safety labels attached to some of the cards. The faceplates
of the cards are clearly labeled with warnings about the laser radiation levels. You must understand all
warning labels before working on these cards.
5.2.1 Class 1 Laser Product Labels
The 32MUX-O card has a Class 1 laser. The labels that appear on the card are described in the following
sections.
5.2.1.1 Class 1 Laser Product Label
The Class 1 Laser Product label is shown in Figure 5-1.
Figure 5-1 Class 1 Laser Product Label
Class 1 lasers are products whose irradiance does not exceed the Maximum Permissible Exposure (MPE)
value. Therefore, for Class 1 laser products the output power is below the level at which it is believed
eye damage will occur. Exposure to the beam of a Class 1 laser will not result in eye injury and may
therefore be considered safe. However, some Class 1 laser products may contain laser systems of a higher
class but there are adequate engineering control measures to ensure that access to the beam is not
reasonably likely. Anyone who dismantles a Class 1 laser product that contains a higher Class laser
system is potentially at risk of exposure to a hazardous laser beam
5.2.1.2 Hazard Level 1 Label
The Hazard Level 1 label is shown in Figure 5-2.
38 189 1586.20 78 187 1603.17
39 188.95 1586.62 79 186.95 1603.60
40 188.9 1587.04 80 186.9 1604.03
Table 5-7 DWDM Channel Allocation Plan (L Band) (continued)
Channel
Number
Frequency
(THz)
Wavelength
(nm)
Channel
Number
Frequency
(THz)
Wavelength
(nm)
CLASS 1 LASER PRODUCT
145952
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