Cisco 4451 ISR Hardware Installation Manual page 73

Chapter 2 Cisco 4000 Series ISRs Preinstallation
This unit may have more than one power supply connection. All connections must be removed to
Warning
de-energize the unit. Statement 1028
Warning This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security. Statement
1017
The plug-socket combination must be accessible at all times, because it serves as the main
Warning
disconnecting device. Statement 1019
Hazardous voltage or energy may be present on the DC power terminals. Always replace cover
Warning
when terminals are not in service. Be sure uninsulated conductors are not accessible when cover
is in place. Statement 1075
Use copper conductors only. Statement 1025
Warning
This equipment must be grounded. Never defeat the ground conductor or operate the equipment
Warning
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
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
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
Warning
beams or view directly with optical instruments. Statement 1051
OL-32185-02
Hardware Installation Guide for the Cisco 4000 Series Integrated Services Router
Standard Warning Statements
2-3