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Cisco 2900 and 3900 Series Hardware Installation
OL-18712-01
Chapter 3 Installing and Connecting the Router
Installing the Router
Grounding the Chassis
After the router is installed, you must connect the chassis to a reliable earth ground. For the chassis
ground connection procedures, see the
“Chassis Grounding” section on page 3-15
.
Setting the Chassis on a Desktop
You can place Cisco 2901, Cisco 2911, and Cisco 3900 series routers on a desktop or shelf.
Note
Models 2921 and above are not recommended for desktop mounting.
To install a Cisco 2901 or 2911 router on a desktop, first install the four rubber feet that are supplied in
the accessory kit. They provide anti-skid protection and space for air circulation. Peel the rubber feet
from the adhesive strip, and stick them onto the “+” marked on the bottom of the chassis.
Warning
To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the
handles on modules (such as power supplies, fans, or cards); these types of handles are not designed
to support the weight of the unit.
Statement 1032
Caution
Do not place anything on top of the router that weighs more than 10 pounds (4.5 kg), and do not stack
routers on a desktop. Excessive distributed weight of more than 10 pounds, or pound point load of
10 pounds on top could damage the chassis.
Caution
Your chassis installation must allow unrestricted airflow for chassis cooling. For placing the router on a
desktop, keep at least 1 inch (2.54 cm) of clear space beside the cooling inlet and exhaust vents.
After the router is installed, you must connect the chassis to a reliable earth ground. For the chassis
ground connection procedures, see the
“Chassis Grounding” section on page 3-15
.