Switch Installation Guide
Chapter 3 Installing the Switch
 Rack-Mounting the Switch
3-2
Cisco Catalyst 4900M Switch Installation Guide
78-18350-01
To check the contents of the shipping container follow these steps:
Step 1 Check the contents of the accessories kit against the packing slip. Verify that you 
received all listed equipment, which should include the following: 
  • Switch hardware and software documentation, if ordered
  • Optional equipment that you ordered, such as network interface cables, 
transceivers, or special connectors
Step 2 To begin installation, proceed to the “Rack-Mounting the Switch” section on 
page 3-2.
Rack-Mounting the Switch
A standard rack-mount kit is included for mounting the switch in a standard 
19-inch (48.3
 cm) four-post equipment rack. A standard equipment rack has two 
unobstructed front posts, a minimum depth between the front and rear mounting 
posts of 19.25
 inches (48.9 cm), and a maximum depth of 32 inches (81.3 cm). 
This kit is not suitable for racks with obstructions (such as a power strip) that 
could impair access to the switch. 
A separate mounting kit for a two-post telco rack is available, and differs mainly 
in the dimensions and in the absence of the rear mounts.
Caution Before installing the chassis in a rack, read the “Site Environmental 
Requirements” section on page 2-1 to become familiar with the proper site and 
environmental conditions. Failure to read and follow these guidelines could lead 
to an unsuccessful installation and possible damage to the system and 
components.
Caution This unit is meant to be rack-mounted, and is not intended to bear more than its 
own weight. Do not stack more than two on a table top, the added weight may 
damage the bottom chassis.










