920550-5020 Rev 14 HN4000 Hardware Installation Guide
A7
Safety Notices
D
D.1 Definition of Qualified Personnel
Installation,maintenance,removalofparts,andremovaloftheHN4000andcomponentsmust
beperformedbyqualifiedservicepersonnelonly.
Qualifiedservicepersonnelarepeoplehavingappropriatetechnicaltrainingandexperience
necessarytobeawareofthehazardstowhichtheyareexposedwhenperformingataskandof
measuresto
minimizethedangertothemselvesorotherpeople.
D.2 Field-Replaceable Components
TheHN4000equipmentisdesignedtoenablequalifiedpersonneltoreplaceonlythefollowing
components:
1. CoolingUnitmodulefilter
2. High‐speednetworkmodule
3. OpticaltransceiversintheHigh‐speednetworkmodules
Therearenootherfield‐replaceablecomponentsintheequipment.Undernocircumstances
shouldpersonnelattempttoreplaceanyother
componentsintheequipment.
Read the following safety information thoroughly before installing this Hatteras Networks
equipment. Failure to follow this safety information can lead to personal injury or damage
to the equipment.
Fiber Optic ports - Optical Safety. Never look at the transmit LED/laser through a magnifying
device while it is powered on. Never look directly at the fiber port or fiber cable ends when they are
powered on.