Cisco OL-11953-01 - Manual (Page 7)

2-7
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.0
OL-11953-01
Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Providing Power to the Cisco Unified IP Phone
Power Outage
Your accessibility to emergency service through the phone is dependent 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.
Obtaining Additional Information about Power
For related information about power, refer to the documents shown in Table 2-3 .
These documents provide information about the following topics:
• Cisco switches that work with the Cisco Unified IP Phone 7961G/7961G-GE
and 7941G/7941G-GE
• The Cisco IOS releases that support bidirectional power negotiation
PoE power—Provided by
a switch through the
Ethernet cable attached
to the phone. • The gigabit Ethernet Cisco Unified IP Phone 79161G-GE and
7941G-GE do not support Cisco inline PoE.
• The Cisco Unified IP Phone 7961G-GE and 7941G-GE support IEEE
802.3af power on signal pairs and spare pairs. The Cisco Unified IP
Phone 79161G-GE and 7941G-GE are not compatible with Cisco
switches that are not IEEE-compliant.
• 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.
External power—
Provided through inline
power patch panel
WS-PWR-PANEL The inline power patch panel WS-PWR-PANEL is compatible with the
Cisco Unified IP Phones 7961G-GE and 7941G-GE.
Table 2-2 Powering Guidelines—Cisco Unified IP Phone 7961G-GE and 7941G-GE (continued)
Power Type Guidelines