Cisco 8851 Notas de lançamento - Página 8

USB Charging

The Cisco IP Phones 8851 and 8861 allow users to charge personal mobile devices using the phone USB

ports. The following table describes the USB charging specifications for personal mobile devices.

Smart phone charging

Tablet charging

The side USB port on the Cisco IP Phones 8851 and 8861 only supports slow charging with limited

500mA/2.5W maximum power.

The back USB port on the Cisco IP Phone 8861 supports fast charging up to 2.1A/10.5W maximum power.

Note

When the Cisco IP Phone 8861 is using PoE with an 802.3af switch, the back USB port can only work in

slow-charging mode due to the limited power supply from 802.3af switch.

The Cisco IP Phone 8861 supports campuses with 802.11a/b/g/n/ac WLAN enabled. Customers need to ensure

that 12 Mbps is enabled in the WLAN Controller or Access Point (AP) data rate configuration.

We recommend that customers use 5 GHz as there are more channels and less interferers with those frequencies.

Attention

The network administrator must ensure that the AP configuration conforms to local regulatory laws.

Refer to publications that are specific to your language, phone model and Cisco Unified Communications

Manager release. Navigate from the following documentation URL:

http://www.cisco.com/c/en/us/support/collaboration-endpoints/unified-ip-phone-8800-series/

tsd-products-support-general-information.html

Cisco IP Phone 8841, 8851, and 8861 Release Notes for Firmware Release 10.2(1)

Cisco IP Phone 8851

Yes (802.3af)

No (no back USB port)

Cisco IP Phone 8861

Yes (802.3af)

Yes (802.3at)