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Cisco 800 Series Routers Hardware Installation Guide
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Chapter 2 Installation
Safety
Safety
Before installing the router, read the following warnings:
Warning
Only trained and qualified personnel should be allowed to install or replace this equipment.
Warning
Read the installation instructions before you connect the system to its power source.
Warning
Before working on a system that has a standby/off switch, turn the power to standby and unplug the
power cord.
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals.
Warning
The ISDN connection is regarded as a source of voltage that should be inaccessible to user contact.
Do not attempt to tamper with or open any public telephone operator (PTO)-provided equipment or
connection hardware. Any hardwired connection (other than by a nonremovable,
connect-one-time-only plug) must be made only by PTO staff or suitably trained engineers.
Warning
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network
voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some
LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables.
Warning
Ultimate disposal of this product should be handled according to all national laws and regulations.
Warning
If the symbol of suitability with an overlaid cross ( ) appears above a port, you must not connect the
port to a public network that follows the European Union standards. Connecting the port to this type
of public network can cause severe injury or damage your router
European Union Statements
The following statements apply to Cisco 801 routers and Cisco 803 routers sold in the European Union
(EU).