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Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
OL-19593-01
Chapter 1 Product Overview
Front Panel Description
System LED
For information on the System LED colors during power-on self-test (POST), see the “Diagnosing
Problems” section on page 4-1.
XPS LED
Port LEDs and Modes
Each Ethernet port and 10-Gigabit Ethernet module slot has a port LED. These port LEDs, as a group or
individually, display information about the switch and about the individual ports. The port mode
determines the type of information shown by the port LEDs.
Table 1-8 lists the mode LEDs and their
associated port modes and meanings.
To select or change a mode, press the Mode button until the desired mode is highlighted. When you
change port modes, the meanings of the port LED colors also change.
Table 1-9 explains how to interpret
the port LED colors in different port modes.
2. Only Catalyst 3750-X switches.
3. Only switches with PoE+ ports.
Ta b l e 1-6 System LED
Color System Status
Off System is not powered on.
Green System is operating normally.
Blinking Green Switch is running power on self-test (POST).
Blinking Amber There is a fault with one of the following:
• Network module (non-traffic-related)
• Power supply
• Fan module
Amber System is receiving power but is not functioning properly.
Ta b l e 1-7 XPS LED
Color XPS Status
Off XPS cable is not installed.
Switch is in StackPower mode (Catalyst 3750-X).
Green XPS is connected and ready to provide back-up power.
Blinking green XPS is connected but is unavailable because it is providing power to another device
(redundancy has been allocated to a neighboring device).
Amber The XPS is in standby mode or in a fault condition. See the XPS-2200
documentation for information about the standby mode and fault conditions.
Blinking amber The power supply in a switch has failed, and the XPS is providing power to that
switch (redundancy has been allocated to this device).
