IBM System Storage N3700, Hardware And Service Manual

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Laser safety
This equipment contains Class 1 laser products, and complies with FDA radiation
Performance Standards, 21 CFR Subchapter J and the international laser safety
standard IEC 825-2.
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical
instruments. (C0280)
CAUTION:
Data processing environments can contain equipment transmitting on
system links with laser modules that operate at greater than Class 1
power levels. For this reason, never look into the end of an optical fiber
cable or open receptacle.
Attention: In the United States, use only SFP or GBIC optical transceivers that
comply with the FDA radiation performance standards, 21 CFR Subchapter J.
Internationally, use only SFP or GBIC optical transceivers that comply with IEC
standard 825–1. Optical products that do not comply with these standards may
product light that is hazardous to the eyes.
Usage restrictions
The optical ports of the modules must be terminated with an optical connector or
with a dust plug.
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IBM System Storage N series: N3700 Hardware and Service Guide