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Catalyst 3650 Switch Hardware Installation Guide
OL-29734-01
Chapter 2 Switch Installation
Connecting Devices to the Ethernet Ports
PoE inline power supports devices compliant with the IEEE 802.3af standard, as well as prestandard
Cisco IP Phones and Cisco Aironet Access Points. Each port can deliver up to 15.4 W of PoE.
PoE+ inline power supports devices compliant with the IEEE 802.3at standard, by delivering up to 30 W
of PoE+ power per port to all switch ports.
Cisco UPOEâ„¢ ports provide up to 60 W power per port for connected devices.
Note Many legacy powered devices, including older Cisco IP phones and access points that do not fully
support IEEE 802.3af, might not support PoE when connected to the switches by a crossover cable.
Caution PoE faults are caused when noncompliant cabling or powered devices are connected to a PoE port. Use
only standard-compliant cabling to connect Cisco prestandard IP Phones, 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.
Warning
Voice over IP (VoIP) service and the emergency calling service do not function if power fails or is
disrupted. After power is restored, you might have to reset or reconfigure equipment to regain access
to VoIP and the emergency calling service. In the USA, this emergency number is 911. You need to be
aware of the emergency number in your country.
Statement 361
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