Cisco 8811 User Manual page 12

Phone Connections
1 DC adaptor port (DC48V).
2 AC-to-DC power supply (optional).
3 AC power wall plug (optional).
4 Network port (10/100/1000 SW) connection.
IEEE 802.3at power enabled.
The Cisco IP Phone 8811 does not support the Cisco IP Phone 8800 Key Expansion Module.
Note
Cisco IP Phone 8811, 8841, 8851, 8851NR, and 8861 User Guide for Cisco Unified Communications Manager
10.5
2
5 Access port (10/100/1000 PC) connection.
6 Auxiliary port.
7 Handset connection.
8 Analog headset connection (optional).
Getting Started