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SELENIO™ SEL‐1DEC1/SEL‐1DEC2
Installation and Operation Manual
Label
© 2014 Imagine Communications Corp. Proprietary and Confidential.
Version 7.0 | Page 49
Label
Selenio products use Class 1 lasers.
Figure 9:
Label for Class 1 Laser Products
Inspecting and Cleaning Fiber Optic
Connections
When connecting fibers to a back module, ensure that you do not touch the end of the fiber, or allow it
to become dirty. Small amounts of microscopic dust or other contaminants can seriously impair or
disable a fiber optic network. If you touch the end of a fiber prior to connecting it to the back module, or
otherwise allow it to become dirty, you must carefully inspect and clean the connection.
The table lists some typical contaminants of a fiber optic connection.
Typical Contaminants
Contaminant
Comments
Dust particle, 1 micron
Can block up to 1% of the light transmission, creating a loss of 0.05 dB
Dust particle, 9 microns Although microscopic, the particle can completely block the fiber core
Human hair
Typically 50 to 75 microns in diameter
Oil
Frequently caused by touching
Film residues
Can accumulate from vapors or smoke
Powdery coatings
Can be left behind after water or other solvents evaporate