Power Guidelines; Power Outage - Cisco 6901 Administration Manual

Providing Power to the Cisco Unified IP Phone

Power Guidelines

Table 2-1
Table 2-1 Guidelines for Powering the Cisco Unified IP Phone 6901 and 6911
Power Type
External power—Provided
through the CP-PWR-CUBE-3
external power supply.
External power—Provided
through the Cisco Unified IP
Phone Power Injector.
PoE power—Provided by a
switch through the Ethernet
cable attached to the phone.
External power—Provided
through inline power patch
panel WS-PWR-PANEL

Power Outage

Your access to emergency service through the phone depends on the phone being powered. If there is an
interruption in the power supply, Service and Emergency Calling Service dialing will not function until
power is restored. In the case of a power failure or disruption, you may need to reset or reconfigure
equipment before using the Service or Emergency Calling Service dialing.
Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
2-4
provides guidelines for powering the Cisco Unified IP Phone 6901 and 6911.
Guidelines
The Cisco Unified IP Phone 6901 and 6911 use the CP-PWR-CUBE-3 power supply.
The Cisco Unified IP Phone Power Injector may be used with any Cisco Unified IP Phone.
Functioning as a midspan device, the injector delivers inline power to the attached phone.
The Cisco Unified IP Phone Power Injector is connected between a switch port and the IP
Phone, and supports a maximum cable length of 100 meter (m) between the unpowered
switch and the IP Phone.
The Cisco Unified IP Phone 6901 and 6911 support Cisco inline PoE.
•
The Cisco Unified IP Phone 6901 and 6911 support IEEE 802.3af Class 1 power on
•
signal pairs and spare pairs.
To ensure uninterruptible operation of the phone, make sure that the switch has a
•
backup power supply.
Make sure that the CatOS or IOS version running on your switch supports your
•
intended phone deployment. Refer to the documentation for your switch for operating
system version information.
The inline power patch panel WS-PWR-PANEL is compatible with the Cisco Unified
IP Phone 6901 and 6911.
Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
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