Specifications

EFT Draft - CISCO CONFIDENTIAL
4-2
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)
OL-20861-01
Chapter 4 Setting Up the Cisco Unified IP Color Key Expansion Module
Installing a Key Expansion Module on the Cisco Unified IP Phone
• Removing a Key Expansion Module, page 4-7
• Troubleshooting, page 4-7
Installing a Key Expansion Module on the Cisco Unified IP
Phone
This section contains the following topics:
• Power Information, page 4-2
• Connecting a Single KEM to the Cisco Unified IP Phone, page 4-3
• Connecting Two or More KEMs to the Phone Using the KEM Spine Connector, page 4-4
• Other Methods for Connecting KEMs to the Phone, page 4-5
Power Information
The Cisco Unified IP Color Key Expansion Module for the Cisco Unified IP Phone 8961, 9951, and
9971 have the following power consumption and power scheme.
Power Consumption
48V DC, 5W per KEM
Power Scheme
• At least one KEM can be powered up if the Cisco Unified IP Phone 8961, 9951, and 9971 uses AT
PoE.
• 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.
• A KEM cannot be powered up if the Cisco Unified IP Phone 8961, 9951, and 9971 uses AF PoE.