Cisco Systems 3750E-48PD-F manual Rack-Mounting, Equipment That You Supply, Before You Begin

6Rack-Mounting

This section covers basic 19-inch rack-mounting and switch port connections. As an example, all the illustrations show the Catalyst 3750E-48 PoE switch. You can install and connect other

Catalyst 3750-E switches as shown in these illustrations. For additional installation and cabling information, see the hardware installation guide on Cisco.com.

Equipment That You Supply

You need a Phillips screwdriver to rack-mount the switch. For connecting the StackWise cables, you need a ratcheting torque screwdriver capable of 5 lbf-in. (80 ozf-in.).

Before You Begin

Before installing the switch, verify that these guidelines are met:

•Clearance to front and rear panels is such that

–Front-panel indicators can be easily read.

–Access to ports is sufficient for unrestricted cabling.

•Make sure that there is access to the rear of the rack if you are planning to stack the switches or connect the RPS 2300. If you do not have access to the rear panel, make that sure you cable the switches before you rack-mount them.

•If you have the optional 1150-W power supply module, first rack-mount the switch before installing the power supply module.

•AC power cord can reach from the AC power outlet to the connector on the switch rear panel.

•Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent lighting fixtures. Make sure the cabling is safely away from other devices that might damage the cables.

•Airflow around the switch and through the vents is unrestricted.

•Temperature around the unit does not exceed 113°F (45°C). If the switch is installed in a closed or multirack assembly, the temperature around it might be greater than normal room temperature.

•For copper connections on Ethernet ports, cable lengths from the switch to connected devices can be up to 328 feet (100 meters).

•For cable lengths for X2 transceiver modules and SFP-module connections, see the hardware installation guide on Cisco.com and the documentation that shipped with the module.

14