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Catalyst2940 Switch Hardware Installation Guide
OL-6157-01
Chapter1 Overview Front-Panel Description
All of the LEDs described in this section are visible through the GUI management applications—the
Network Assistant application for multiple switches and the device manager for a single switch. The
switch software configuration guide describes how to use the CLI to configure and to monitor individual
switches and switch clusters.
SYST LED
The SYST LED shows whether the system is receiving power and functioning properly. Table 1- 4 lists
the LED colors and meanings.
For information about the system LED colors during the power-on self-test (POST), see the
“Understanding POST Results” section on page3-1.
STAT, DPLX, SPD, and Port LEDs
Press the Mode button to cycle through the STAT, DPLX, and SPD LED displays. When the LED is
highlighted for the mode that you want, release the button to enable that highlighted mode.
Table 1 -5 lists the mode meanings.
Each port has a port status LED, also called a port LED. These LEDs display information about the
individual ports. When you change the port mode, the meanings of the port LED colors change.
Table 1 -6 explains how to interpret these colors.
Table1-4 System LED
Color System Status
Off System is not powered on.
Green System is operating normally.
Amber System is receiving power but is not functioning properly.
Table1-5 Port Mode LEDs
Mode LED Port Mode Description
STAT Port status Port status. This is the default mode.
DPLX Port duplex mode Port duplex mode: half duplex or full duplex.
SPD Port speed Port operati ng speed : 10 or 100 Mbp s for 10/100 ports an d
10, 100, or 1000 Mbps for 10/100/1000 ports.