Cisco 7800 Series Accessories Manual page 72

Key Expansion Module Power Information
Configuration
8851 and 2 expansion modules
8861 and 1 expansion module
8861 and 2 expansion modules
8861 and 3 expansion modules
8865 and 1 expansion module
8865 and 2 expansion modules
8865 and 3 expansion modules
Note Be familiar with the following items:
• Cisco IP Phone 8861 using 802.3at PoE: The fast-charging feature on the back USB is not supported
when more than one expansion module is used.
• Cisco IP Phone 8865: The fast-charging feature on the back USB requires Cisco Universal PoE (UPoE)
when more than one expansion module is attached.
• Cisco IP Phone 8851 with 2 expansion modules: 802.3at PoE is supported only with v08 or later hardware.
You can find the phone version information on the lower back of the phone as part of the TAN and PID
label. Version information is also located on the individual phone packaging.
Cisco IP Phone 7800 and 8800 Series Accessories Guide for Cisco Unified Communications Manager
64
802.3af Power over Ethernet
(PoE)
No
No
No
No
No
No
No
802.3at PoE
No
See the third note.
Yes
Yes
See the first note.
Yes
See the first note.
Yes
Yes
See the second note.
Yes
See the second note.
Key Expansion Modules
Cisco IP Phone Power Cube 4
Yes
Yes
Yes
Yes
Yes
Yes
Yes