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D-3
Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 7.0
OL-15299-01
Appendix D Technical Specifications
Network and Access Port Pinouts
Access Port Connector
Table D-3 describes the access port connector pinouts.
Table D-3 Access Port Connector Pinouts
Pin Number Function
1BI_DB+
2BI_DB-
3BI_DA+
4BI_DD+
5 5BI_DD-
66BI_DA-
77BI_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.