- Cisco 4451-X Integrated Services Router Manual

2-3
Hardware Installation Guide for the Cisco 4451-X Integrated Services Router
OL-27644-01
Chapter 2 Preparing for Router Installation
Standard Warning Statements
Warning The plug-socket combination must be accessible at all times, because it serves as the main
disconnecting device. Statement 1019
Warning Hazardous voltage or energy may be present on the DC power terminals. Always replace cover when
terminals are not in service. Be sure uninsulated conductors are not accessible when cover is in
place. Statement 1075
Warning Use copper conductors only. Statement 1025
Warning This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
Warning Hazardous voltage or energy is present on the backplane when the system is operating. Use caution
when servicing. Statement 1034
Warning Class 1 laser product. Statement 1008
Warning Class 1 LED product. Statement 1027
Warning Laser radiation is present when the system is open. Statement 1009
Warning Do not stare into the laser beam. Statement 1010
Warning Class I(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 There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with
the same or equivalent type recommended by the manufacturer. Dispose of used batteries according
to the manufacturer’s instructions. Statement 1015