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Chapter 2 Installation
Preparing for Installation
2-2
Cisco 831 Router and SOHO 91 Router Hardware Installation Guide
78-14784-02
Warnings
Before installing the router, read the following warnings:
Warning
Read the installation instructions before you connect the system to its power
source.
Warning
Only trained and qualified personnel should be allowed to install, replace, or
service this equipment.
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.