Cisco Unified Ip Phone 8961, 9951, And 9971 Administration Guide For Cisco Unified Communications Manager - Cisco 9971 Administration Manual
Unified ip phone 8961, 9951, and 9971 administration guide for cisco unified communications manager 10.0
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Also See for 9971:
- Deployment manual (104 pages) ,
- User manual (42 pages) ,
- Quick start manual (4 pages)
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KEM Power Information
Table 16: Cisco Unified IP Phones and Supported KEMs
Cisco Unified IP Phone model
9971
9951
8961
Related Topics
Wall Mounts, on page 125
KEM Power Information
The Cisco Unified IP Color Key Expansion Module for the Cisco Unified IP Phone 8961, 9951, and 9971
possesses the following power consumption and power scheme:
Power consumption
Power scheme
Connect Single KEM to Cisco Unified IP Phone
To connect a single KEM to the Cisco Unified IP Phone, follow these steps:
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager
10.0
114
48V DC, 5W per KEM
• If the Cisco Unified IP Phone 8961, 9951, and 9971 uses AT PoE, at least one KEM can be
powered up.
• If the phone uses a power adapter, three KEMs can be powered up for the Cisco Unified IP Phone
9971, two KEMs can be powered up for the Cisco Unified IP Phone 9951, and one KEM can be
powered up for the Cisco Unified IP Phone 8961.
• If the Cisco Unified IP Phone 8961, 9951, and 9971 uses AF PoE, a KEM cannot be powered up.
• With AT power, the Cisco Unified IP Phones 9951 and 9971 can support two KEMs plus a USB
headset or another USB device that is independently powered and only uses USB for signalling.
• The Cisco Unified IP Phone 9971 needs a power cube to support three KEMS.
• With AF power, the Cisco Unified IP Phones 9951 and 9971 need power cubes for any KEMS.
The Cisco Unified IP Phone 8961 can support one KEM with CDP, AF power, and no power
cube.
Supported KEMs
3 KEMs with 108 lines or buttons
2 KEMs with 72 lines or buttons
1 KEM with 36 lines or buttons
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Troubleshooting
