Cisco Systems CATALYST 2940 5

5 Installing the Switch

This section covers switch installation and port connections. For additional installation and cabling

information, refer to the Catalyst 2940 Switch Hardware Installation Guide on Cisco.com.

You can order an optional cable guard to secure cables to the front of the switch and prevent them

from being accidentally removed. To order a cable guard, contact your Cisco representative.

The switch has security slots in the left and right side panels. You can install an optional cable lock,

such as the type that is used to secure a laptop computer, to secure either or both sides of the switch.

Cable locks are available from most computer accessory suppliers.

You need this equipment to install the switch:

•Number-2 Phillips screwdriver

•Drill with a #27 drill bit (0.144-inch [3.7 mm])

When determining where to install the switch, verify that these guidelines are met:

•Airflow around the switch and through the

vents is unrestricted.

•Temperature around the switch does not

exceed 113°F (45°C).

•Humidity around the switch does not exceed

85 percent.

•Altitude at the installation site is not greater

than 10,000 feet (3049 m).

•Clearance to the switch front and rear panels

meets these conditions:

–

Front-panel LEDs can be easily read.

–

Access to ports is sufficient for

unrestricted cabling.

–

AC power cord can reach from the AC

power outlet to the connector on the

switch front or rear panel.

•Cabling is away from sources of electrical

noise, such as radios, power lines, and

fluorescent lighting fixtures.

•For 10/100 ports and the 10/100/1000 port,

the cable length from a switch to an attached

device cannot exceed 328 feet (100 meters).

•For the 100BASE-FX port, the cable length

from a switch to an attached device cannot

exceed 6562 feet (2 kilometers).

•For cable lengths for small form-factor

pluggable (SFP) modules, refer to the

documentation that shipped with the module.