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Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide
OL-9774-03
Chapter 1 Product Overview
Front Panel Description
PoE LED
If the PoE LED mode is not selected on a switch with PoE ports, the PoE LED still shows detected PoE
problems.
Table 1-10 lists the PoE LED colors and their meanings.
Ta b l e 1-10 PoE Mode LED
Color PoE Status
Off PoE mode is not selected. None of the 10/100/1000 ports have been denied power
or are in a fault condition.
Green PoE mode is selected, and the port LEDs show the PoE status.
Blinking amber PoE mode is not selected. At least one of the 10/100/1000 ports has been denied
power, or at least one of the 10/100/1000 ports has a PoE fault.
PoE
2
Off PoE is off.
If the device is receiving power from an AC power source, the port
LED is off even if the 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
green and
amber
PoE is denied because providing power to the powered device will
exceed the switch power capacity.
Blinking amber PoE is off due to a fault or because it has exceeded a limit set in the
switch software.
Caution PoE faults are caused when noncompliant cabling or
powered devices are connected to a PoE port. You can
use only standard-compliant cabling to connect Cisco
pre-standard IP Phones and wireless access points or
IEEE
802.3af-compliant devices to PoE ports. You must
remove from the network any cable or device that causes
a PoE fault.
Amber PoE for the port has been disabled.
Note PoE is enabled by default.
1. Only Catalyst 3750-E switches.
2. Only switches with PoE ports.
Table 1-9 Meaning of Switch LED Colors in Different Modes (continued)
Port Mode Port LED Color Meaning