Cisco 6941 Administration Guide - Page 164
Cable Specifications, Network and Access Port Pinouts
UPC - 882658277801
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Cable Specifications Appendix Cable Specifications • RJ-9 jack (4-conductor) for handset and headset connection. • RJ-45 jack for the LAN 10/100BaseT connection (labeled 10/100 SW on the Cisco Unified IP Phone 6921, 6941, and 6961). • RJ-45 jack for a second 10/100BaseT compliant connection (labeled 10/100 PC on the Cisco Unified IP Phone 6921, 6941, and 6961). • 48-volt power connector. Network and Access Port Pinouts Although both the network and access ports are used for network connectivity, they serve different purposes and have different port pinouts. • The network port is labeled network on the Cisco Unified IP Phone. • The access port is labeled Computer on the Cisco Unified IP Phone. Network Port Connector Table C-2 describes the network port connector pinouts. Table C-2 Network Port Connector Pinouts Pin Number Function 1 BI_DA+ 2 BI_DA- 3 BI_DB+ 4 BI_DC+ 5 BI_DC- 6 BI_DB- 7 BI_DD+ 8 BI_DD- Note "BI" stands for bidirectional, while DA, DB, DC and DD stand for "Data A", "Data B", "Data C" and "Data D", respectively. Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP) C-2 OL-23769-01