Cisco Unified IP Phone 8941 Administration Manual page 21

Table 5: Guidelines for Powering the Cisco Unified IP Phone 8941 and 8945
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
The documents in the following table provide more information on the following topics:
• Cisco switches that work with Cisco Unified IP Phones
• Cisco IOS releases that support bidirectional power negotiation
• Other requirements and restrictions about power
Document topics
Cisco Unified IP Phone Power Injector
PoE Solutions
Cisco Catalyst Switches
Integrated Service Routers
Cisco Unified IP Phone 8941 and 8945 Administration Guide for Cisco Unified Communications Manager 10.0 (SCCP
Guidelines
The Cisco Unified IP Phone 8941 and 8945 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 m between the unpowered
switch and the IP Phone.
The Cisco Unified IP Phone 8941 supports IEEE 802.3af Class 1 power
on signal pairs and spare pairs.
The Cisco Unified IP Phone 8945 supports IEEE 802.3af Class 2 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 switch documentation for
operating system version information.
The inline power patch panel WS-PWR-PANEL is compatible with the
Cisco Unified IP Phone 8941 and 8945.
URL
http://www.cisco.com/en/US/products/ps6951/index.html
http://www.cisco.com/en/US/netsol/ns340/ns394/ns147/ns412/
index.html
http://www.cisco.com/en/US/products/hw/switches/index.html
http://www.cisco.com/en/US/products/hw/routers/index.html
Phone Power Requirements
and SIP)
7