Specifications

D-3
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.5
OL-23092-01
Appendix D Technical Specifications
Network and Access Port Pinouts
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 10/100 SW or 10/100/1000 SW on the Cisco Unified IP Phone.
• The access port is labeled 10/100 PC or 10/100/1000 PC on the Cisco Unified IP Phone.
Network Port Connector
Table D-2 describes the network port connector pinouts.
Access Port Connector
Table D-3 describes the access port connector pinouts.
Table D-2 Network Port Connector Pinouts
Pin Number Function
1BI_DA+
2BI_DA-
3BI_DB+
4BI_DC+
5 BI_DC-
6 BI_DB-
7 BI_DD+
8 BI_DD-
Note “BI” stands for bi-directional, while DA, DB, DC and DD stand for “Data A”, “Data B”, “Data
C” and “Data D”, respectively.
Table D-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.