Cisco Systems C3850NM210G Manual De Usuario

The 10/100/1000 PoE+ and Cisco UPOE ports have the same autonegotiation settings and cabling 
requirements that are described in the 

. 

These ports can provide PoE, PoE+, or Cisco UPOE inline power.

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. 

See 

 for the power supply modules required to support PoE, PoE+, and Cisco 

UPOE on 24- and 48-port switches.

For more information about the required power-supply module and the PoE specifications, see the 

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.

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.

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

1.

100BASE-TX and 1000BASE-T traffic requires twisted four-pair, Category 5, Category 5e, or 
Category 6 cable. 10BASE-T traffic can use Category 3 or Category 4 cable.

Switch to switch

Yes

No

Switch to hub

Yes

No

Switch to computer or server

No

Yes

Switch to router

No

Yes

Switch to IP phone

No

Yes