Cisco Systems CP6921CK9 manual Cable Specifications, Network and Access Port Pinouts

Appendix C Technical Specifications

Cable Specifications

Cable Specifications

•RJ-9 jack (4-conductor) for handset and headset connection.

•RJ-45 jack for the LAN 10/100BaseT connection (labeled 10/100 SW on the Cisco Unified IP Phone 6900 Series).

•RJ-45 jack for a second 10/100BaseT compliant connection (labeled 10/100 PC on the Cisco Unified IP Phone 6900 Series).

•48-volt power connector.

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 network on the Cisco Unified IP Phone.

•The access port is labeled Computer on the Cisco Unified IP Phone.

Network Port Connector

Table C-2describes the network port connector pinouts.

Table C-2	Network Port Connector Pinouts
Pin Number		Function
1		BI_DA+
2		BI_DA-
3		BI_DB+
4		BI_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.

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+

Cisco Unified IP Phone 6921, 6941, and 6961 Administration Guide for Cisco Unified Communications Manager 7.1 (SCCP)

C-2 OL-19025-01