Cisco CP-7975G Administration Guide - Page 240

Cable Specifications Appendix D Technical Specifications Table D-1 Physical and Operating Specifications (continued) Specification Power options Cables Value or Range Cisco Unified IP Phone 7975G, 7965G and 7945G: • 100-240 VAC, 50-60 Hz, 0.5 A-when using the AC adapter • 44V - 57V DC, 0.25 A-when using the in-line power over the network cable Cisco Unified IP Phone 7971G-GE and 7970G: • The phone can receive power from IEEE 802.3af-compliant data switches (Class III) • The phone can be powered locally with a power adapter (Cisco part number CP-PWR-CUBE-3=) and the appropriate power cord (power requirements for the power adapter: 100-240 VAC, 50-60 Hz, 0.5 A) For Cisco Unified IP Phone 7975G, 7965G, and 7945G: • Category 3/5/5e/6 for 10-Mbps cables with 4 pairs • Category 5/5e/6 for 100-Mbps cables with 4 pairs • Category 5e/6 for 1000-Mbps cables with 4 pairs Note Cables have 4 pairs of wires for a total of 8 conductors. For Cisco Unified IP Phone 7971G-GE and 7970G: • Category 3/5/5e for 10-Mbps cables with 4 pairs • Category 5/5e for 100-Mbps cables with 4 pairs • Category 5e/6 for 1000-Mbps cables with 4 pairs Distance requirements Note Cables have 4 pairs of wires for a total of 8 conductors. As supported by the Ethernet specification, it is assumed that the maximum cable length between each Cisco Unified IP Phone and the switch is 100 meters (330 feet). Cable Specifications • RJ-9 jack (4-conductor) for handset and headset connection. • RJ-45 jack for the LAN 10/100/1000BaseT connection (labeled 10/100/1000 SW). • RJ-45 jack for a second 10/100/1000BaseT compliant connection (labeled 10/100/1000 PC). • 3.5 mm jack for microphone and speaker connection (for Cisco Unified IP Phone 7971G-GE and 7970G only). • 48-volt power connector. Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.5 D-2 OL-23092-01