Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
Statement 1036
Warning
Before opening the unit, disconnect the telephone-network cables to avoid contact with telephone-network
voltages. Statement 1041
Warning
This product requires short-circuit (overturned) protection, to be provided as part of the building installation.
Install only in accordance with national and local wiring regulations. Statement 1045
Warning
When installing or replacing the unit, the ground connection must always be made first and When you
connect or disconnect the power and/or alarm connector with power applied, an electrical arc can occur.
This could cause an explosion in hazardous area installations. Be sure that all power is removed from the
switch and any other circuits. Be sure that power cannot be accidentally turned on or verify that the area
is nonhazardous before proceeding. Statement 1058
Warning
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Warning
If you connect or disconnect the console cable with power applied to the switch or any device on the
network, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be
sure that power is removed or the area is nonhazardous before proceeding. Statement 1080
Warning
Hazardous voltage or energy may be present on power terminals. Always replace cover when terminals
are not in service. Be sure uninsulated conductors are not accessible when cover is in place. Statement
1086
Warning
When working on equipment powered by electricity, follow these guidelines:
•
Locate the room
’
s emergency power-off switch. If an electrical accident occurs, you will be able to
quickly turn off the power.
•
Before starting work on the system, turn off the DC main circuit breaker and disconnect the power
terminal block cable.
•
Before doing the following, disconnect all power:
◦
Working on or near power supplies
◦
Installing or removing a router chassis or network processor module
◦
Performing most hardware upgrades
•
Never install equipment that appears damaged.
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
46
Preparing for Installation
Safety with Electricity