Appendix

Network and Access Port Pinouts

Access Port Connector

Table C-3describes the access port connector pinouts.

Table C-3

Access Port Connector Pinouts

 

 

 

Pin Number

 

Function

 

 

 

1

 

BI_DB+

 

 

 

2

 

BI_DB-

 

 

 

3

 

BI_DA+

 

 

 

4

 

BI_DD+

 

 

 

5

 

BI_DD-

 

 

 

6

 

BI_DA-

 

 

 

7

 

BI_DC+

 

 

 

8

 

BI_DC-

 

 

 

Note “BI” stands for bi-directional, while DA, DB, DC and

DDstand for “Data A”, “Data B”, “Data C” and “Data D”, respectively.

Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)

 

OL-23769-01

C-3

 

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Cisco Systems 6921 manual Access Port Connector, Table C-3describes the access port connector pinouts