Cisco 7937G Administration Guide - Page 30

Understanding Conference Station Configuration Files Chapter 2 Preparing to Install the Conference Station on Your Network Table 2-2 Power Consumption and Display Brightness for Power Configurations (continued) Power Configuration Max. Power Consumed Conference Station Screen from a Switch Brightness IEEE 802.3af Class 3 power from a Cisco switch (with or without bidirectional power negotiation enabled) or from a third-party switch 15.4 W Near full External power - Full 1. Starts at approximately 1/2 brightness, changes to full brightness when the conference station negotiates additional power. Power Outage Your accessibility to emergency service through the conference station is dependent on the conference station 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 these topics: • Cisco switches that work with the conference station • The Cisco IOS releases that support bidirectional power negotiation • Other requirements and restrictions regarding power Table 2-3 Related Documentation for Power Document Topics PoE Solutions Cisco Catalyst Switches Integrated Service Routers Cisco IOS Software URL http://www.cisco.com/en/US/netsol/ns340/ns394/ns147/ns412/ networking_solutions_package.html http://www.cisco.com/univercd/cc/td/doc/product/lan/index.htm http://www.cisco.com/en/US/products/hw/routers/index.html http://www.cisco.com/en/US/products/sw/iosswrel/ products_ios_cisco_ios_software_category_home.html Understanding Conference Station Configuration Files Configuration files for a conference station are stored on the TFTP server and define parameters for connecting to Cisco Unified Communications Manager. In general, any time you make a change in Cisco Unified Communications Manager that requires the conference station to be reset, a change is made to the conference station's configuration file automatically. Configuration files also contain information about which image load the conference station should be running. If this image load differs from the one currently loaded on a conference station, the conference station contacts the TFTP server to request the required load files. Cisco Unified IP Conference Station 7937 Administration Guide for Cisco Unified Communications Manager 6.0 2-4 OL-11560-01 Rev. B0