Cisco IP Phone Administration Manual page 229

Appendix D Technical Specifications
Table D-2
Pin Number
8
"BI" stands for bi-directional, while DA,
DB, DC and DD stand for "Data A", "Data
B", "Data C" and "Data D," respectively.
Access Port Connector
Table D-3
Table D-3
Pin Number
1
2
3
4
5
6
7
8
Note
OL-23091-01
Network Port Connector Pinouts (continued)
Function
BI_DD-
describes the access port connector pinouts.
Access Port Connector Pinouts
Function
BI_DB+
BI_DB-
BI_DA+
BI_DD+
BI_DD-
BI_DA-
BI_DC+
BI_DC-
"BI" stands for bi-directional, while DA, DB, DC and DD stand for "Data A", "Data
B", "Data C" and "Data D", respectively.
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
Network and Access Port Pinouts
D-3