USB port9Access port (10/100/1000 PC)
connection.
5DC adaptor port (DC48V).1
Auxiliary port.6AC-to-DC power supply
(optional).
2
Handset connection.7AC power wall plug (optional).3
Analog headset connection
(optional).
8Network port (10/100/1000 SW)
connection. IEEE 802.3at power
enabled.
4
Each USB port supports the connection of up to five supported and nonsupported devices. Each device
connected to the phone is included in the maximum device count. For example, your phone can support
five USB devices (such as two Cisco IP Phone 8800 Key Expansion Modules, one headset, one hub, and
one other standard USB device) on the side port. Many third-party USB products count as multiple USB
devices, for example, a device containing USB hub and headset can count as two USB devices. For more
information, see the USB device documentation.
Note
Cisco IP Phone 8811, 8841, 8845, 8851, 8851NR, 8861, and 8865 User Guide for Cisco Unified Communications Manager
11.0
15
Getting Started
Phone Connections
REVIEW DRAFT - CISCO CONFIDENTIAL