User's Manual

Table Of Contents
Cisco IP Phone 8851
The following sections describe attributes of the Cisco IP Phone 8851.
Phone Connections
Connect your phone to the corporate IP telephony network, using the following diagram.
Access 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
Cisco IP Phone 8841, 8851, and 8861 User Guide for Cisco Unified Communications Manager 10.5
6
Getting Started
Cisco IP Phone 8851
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