Rack-Mounting, Before You Begin | Cisco Systems CATALYST 2950

5Rack-Mounting

This section covers basic 19-inch rack-mounting and switch port connections. As an example, all the illustrations show the Catalyst 2950G-48-EI switch. You can install and connect other Catalyst 2950 switches as shown in these illustrations. For alternate mounting procedures, such as installing the switch in a 24-inch rack or on a wall, and for additional cabling information, refer to the Catalyst 2950 Switch Hardware Installation Guide on Cisco.com.

Equipment That You Supply

You need to supply a number-2 Phillips screwdriver to rack-mount the switch.

Before You Begin

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 (3,049 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.

–DC source wires can reach from the circuit breaker to the terminal block plug 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 10/100/1000 ports, the cable length from a switch to an attached device cannot exceed 328 feet (100 meters).

•For 100BASE-FX ports, the cable length from a switch to an attached device cannot exceed 6562 feet (2 kilometers).

•For 1000BASE-SX ports, the cable length from a switch to an attached device cannot exceed 1804 feet (550 meters).

•For cable lengths for small form-factor pluggable (SFP) modules or Gigabit Interface Converter (GBIC) modules, refer to the documentation that shipped with the module.

•For cable lengths for LRE switch ports, refer to the Catalyst 2950 Switch Hardware Installation Guide.