Cisco Catalyst 3750 Hardware Installation Manual page 67

Chapter 2 Product Overview
Table 2-6 Meaning of LED Colors in Different Modes on the Switch
Port Mode Port LED Color
1
PoE Off
Green
Alternating
green and
amber
Blinking amber PoE is off due to a fault.
Amber
78-15136-03
Meaning
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.
PoE is on. The port LED is green only when the switch port is
providing power.
PoE is denied because providing power to the powered device will
exceed the 370 W switch power capacity.
PoE faults are caused when noncompliant cabling or
Caution
powered devices are connected to a PoE port. Only
standard-compliant cabling can be used to connect Cisco
pre-standard IP Phones and wireless access points or
IEEE 802.3af-compliant devices to PoE ports. A cable or
device that causes a PoE fault must be removed from the
network.
PoE for the port has been disabled.
PoE is enabled by default.
Note
Catalyst 3750 Switch Hardware Installation Guide
Front Panel Description
2-19