Cisco Catalyst 2975 Hardware Installation Manual page 13

Chapter 1 Product Overview
Table 1-5
Mode LED
STAT
DUPLX
SPEED
STACK
PoE
Table 1-6
Color
Off
Green
Blinking amber
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 1-7
Port Mode
PoE
OL-17784-01
Port Mode LEDs
Port Mode
Port status
Port duplex
Port speed
Stack member status
Stack port status
PoE port power
PoE Mode LED
PoE Status
PoE mode is not selected. No port has been denied power or is in a fault condition.
PoE mode is selected, and the port LEDs show the PoE status.
PoE mode is not selected. At least one port was denied power, or at least one port
has a PoE fault.
Meanings of LED Colors in Different Modes
Port LED Color Meaning
Off PoE is off. If the powered device is receiving power from an AC
power source, the port LED is off even if the powered device is
connected to the switch port.
Green PoE is on. The port LED is green only when the switch port is
providing power.
Alternating PoE is denied because providing power to the powered device will
green and exceed the 370-W switch power capacity.
amber
Blinking amber PoE is off due to a fault.
Caution
Amber PoE for the port is disabled. (PoE is enabled by default.)
Description
The port status. This is the default mode.
The port duplex mode: full duplex or half duplex.
Note The ports operate only in full-duplex mode.
The port operating speed: 10, 100, or 1000 Mb/s.
The stack member status.
The stack port status. See the
for more information.
The PoE status.
Noncompliant cabling or powered devices can cause a
PoE port fault. Use only standard-compliant cabling to
connect Cisco prestandard IP Phones and wireless access
points or IEEE 802.3af-compliant devices. You must
remove any cable or device that causes a PoE fault.
Catalyst 2975 Switch Hardware Installation Guide
Front Panel
"Stack LED" section on page 1-6
1-5