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Preparing for Installation
• Do not wear loose clothing that may get caught in the chassis.
• When working under conditions that may be hazardous to your eyes, wear safety glasses.
Safety Precautions for Module Installation and Removal
Be sure to observe the following safety precautions when you work on the chassis.
To see the translations of the warnings that appear in this publication, see the Regulatory Compliance and
Safety Information for the Cisco NCS 4200 Series document.
Warning
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or
view directly with optical instruments. Statement 1051
Warning
Class 1M laser radiation when open. Do not view directly with optical instruments. Statement 1053
Warning
Class 1 CDRH) and Class 1M (IEC) laser products. Statement 1055
Warning
Invisible laser radiation may be emitted from the end of the unterminated fiber cable or connector. Do not
view directly with optical instruments. Viewing the laser output with certain optical instruments (for example,
eye loupes, magnifiers, and microscopes) within a distance of 100 mm may pose an eye hazard. Statement
1056
Warning
Do not stare into the beam or view it directly with optical instruments. Statement 1011
Warning
Invisible laser radiation present. Statement 1016
Warning
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or
view directly with optical instruments. Statement 1051
Safety with Electricity
Warning
Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect
the power at the circuit breaker on DC units. Statement 12
Safety Precautions for Module Installation and Removal
Cisco NCS 4201 Hardware Installation Guide
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