Cisco 6941 - Unified IP Phone Slimline VoIP Administration Manual page 165

Appendix
Access Port Connector
Table C-3
Table C-3
Pin Number
1
2
3
4
5
6
7
8
Note
Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)
OL-23769-01
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.
Network and Access Port Pinouts
C-3