Providing Power To The Cisco Unified Ip Phone; Power Guidelines - Cisco CP-3911 - Unified SIP Phone 3911 VoIP Administration Manual

Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Note

Providing Power to the Cisco Unified IP Phone

Note

Power Guidelines

Cisco Unified SIP Phone 3911 Administration Guide for Cisco Unified Communications Manager
OL-14029-01
If the Cisco Unified IP Phone model that you want to configure does not appear
in the Phone Type drop-down list in Cisco Unified Communications Manager
Administration, go to the following URL and install the latest support patch for
your version of Cisco Unified Communications Manager:
http://www.cisco.com/kobayashi/sw-center/sw-voice.shtml
Related Topic
• Telephony Features Available for the Cisco Unified IP Phone, page 5-1
The Cisco Unified SIP Phone 3911 can be powered with external power or with
Power over Ethernet (PoE). External power is provided through a separate power
supply. PoE is provided by a switch through the Ethernet cable attached to a
phone.
When you install a phone that is powered with external power, connect the power
supply to the phone and to a power outlet before you connect the Ethernet cable
to the phone. When you remove a phone that is powered with external power,
disconnect the Ethernet cable from the phone before you disconnect the power
supply.
The following sections provide more information about powering a phone:
Power Guidelines, page 2-3
•
Cisco Unified IP Phone Power Injector, page 2-4
•
Obtaining Additional Information about Power, page 2-5
•
Table 2-1 provides guidelines for powering the Cisco Unified SIP Phone 3911.
Providing Power to the Cisco Unified IP Phone
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