Cisco 7941G Administration Guide - Page 61

Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Providing Power to the Cisco Unified IP Phone Table 2-2 Powering Guidelines-Cisco Unified IP Phone 7961G-GE and 7941G-GE (continued) Power Type Guidelines 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. 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 Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1 OL-14620-01 2-7