Cisco Systems 8961 Cable Specifications, Network and Computer Port Pinouts, Pin Number Function

Appendix C Technical Specifications

Cable Specifications

Note For power information regarding the Cisco Unified IP Key Color Expansion Module, see the “Power Information” section on page 4-2.

Cable Specifications

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

•RJ-45 jack for the LAN 10/100/1000BaseT connection (10/100/1000 Network port on the Cisco Unified IP Phone 8961, 9951, and 9971).

•RJ-45 jack for a second 10/100/1000BaseT compliant connection (10/100/1000 Computer port on the Cisco Unified IP Phone 8961, 9951, and 9971).

•3.5 mm jack for microphone and speaker connection (for Cisco Unified IP Phones 9951 and 9971 only).

•48-volt power connector.

Network and Computer Port Pinouts

Although both the network and computer (access) ports are used for network connectivity, they serve different purposes and have different port pinouts.

•The Network port is the 10/100/1000 SW port on the Cisco Unified IP Phone.

•The Computer (access) port is the 10/100/1000 PC port 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.

Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)

C-2 OL-20861-01