C-3
Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)
OL-23769-01
Appendix
Network and Access Port Pinouts
Access Port Connector
Table C-3 describes the access port connector pinouts.
Table C-3 Access Port Connector Pinouts
Pin Number Function
1BI_DB+
2BI_DB-
3BI_DA+
4BI_DD+
5BI_DD-
6BI_DA-
7BI_DC+
8BI_DC-
Note “BI” stands for bi-directional, while DA, DB, DC and
DD stand for “Data A”, “Data B”, “Data C” and “Data
D”, respectively.