Network Router User Manual

Chapter 2 Installation
Preparing for Installation
2-2
Cisco 806 Router Hardware Installation Guide
78-10432-01
Warnings
Before installing the router, read the following warnings:
Warning Read the installation instructions before you connect the system to its power
source.
Warning No operator serviceable parts inside. Refer servicing to qualified personnel.
Warning Before working on a chassis or working near power supplies, unplug the
power cord on AC units; disconnect the power at the circuit breaker on DC
units.
Warning This equipment is intended to be grounded. Ensure that the host is
connected to earth ground during normal use.
Warning This product relies on the building’s installation for short-circuit
(overcurrent) protection. Ensure that a fuse or circuit breaker no larger than
120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase
conductors (all current-carrying conductors).
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 ports labeled "10BaseT", 100BaseTX", and "10/100" are safety extra-low
voltage (SELV) circuits. SELV circuits should only be connected to other
SELV circuits. Avoid connecting these circuits to telephone network voltage
(TNV) circuits.