Rack-Mounting The Chassis - Cisco 3700 Series Hardware Installation Manual

Chapter 3 Installing the Router
Setting Up the Chassis
To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the
Warning
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
Do not place anything on top of the router that weighs more than 10 lb (4.5 kg). Excessive weight on top
Caution
could damage the chassis.
After the router has been installed, you must connect the chassis to a reliable earth ground. For the
chassis ground connection procedures, see the "Installing the Chassis Ground Connection" section on
page 3-8.

Rack-Mounting the Chassis

If you are planning to rack-mount the router, do so before making network and power connections. If
you need to install network modules or interface cards, you can do so either before or after
rack-mounting the router. Ideally, you would install modules and interface cards when you have the best
access to the rear panel of the router.
The Cisco 3725 requires additional clearance on the left side (as viewed from the front of the chassis) to
Note
accommodate cooling fans. This clearance is provided through the use of special brackets. Be sure to
install the wide bracket (marked right) on the side of the chassis with the cooling fans.
The Cisco 3725 router is shipped with rack-mounting brackets for 19-inch racks. (See Figure 3-1.)
Figure 3-1 Rack-Mounting Brackets for Cisco 3725 Router
Slots for cable tie attachment
Narrow bracket for Wide bracket for
chassis side opposite fans chassis side with fans
The Cisco 3745 router is shipped with rack-mounting brackets for 19-inch racks. (See Figure 3-2.) You
can order optional bracket for 23-inch rack-mounting. (See Figure 3-3.)
Cisco 3700 Series Routers Hardware Installation Guide
3-3
OL-2180-08