1-9
Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide
OL-9774-03
Chapter 1 Product Overview
Front Panel Description
Fan LED
The Fan LED shows the fan status. Table 1-7 lists the LED colors and their meanings. (Only
Catalyst 3560E-12D and 3560E-12SD switches.)
Tab l e 1-7 Fan LED
Color Description
Off No input power.
Green Fan is operating normally.
Amber Fan fault detected in a chassis cooling fan or a power-supply
module fan, or a fan is removed.
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 displayed through 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. Tabl e 1-9 explains how to interpret
the port LED colors in different port modes.
On a Catalyst 3750-E switch stack, when you press the Mode button on any switch in the stack, all the
switches in the stack change to display the same selected mode. For example, if you press the mode
button on the stack master to display SPEED, all the other switches in the stack also display SPEED.
Tab l e 1-8 Port Mode LEDs
Mode LED Port Mode Description
STAT Port status The port status. This is the default mode.
DUPLX Port duplex mode The port duplex mode: full duplex or half duplex.
Note The 10/100/1000 ports operate only in full-duplex
mode.
SPEED Port speed The port operating speed: 10, 100, or 1000 Mb/s.
STACK
1. Only Catalyst 3750-E switches.
1Stack member status
StackWise port status
The stack member status.
The StackWise port status. See the “Stack LED” section on
page 1-12 for more information.
PoE
2. Only switches with PoE ports.
2PoE port power The PoE port status.