C-2
Cisco Unified IP Phone 8941 and 8945 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)
OL-20851-01
Appendix
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 8941 and 8945).
• RJ-45 jack for a second 10/100BaseT compliant connection (labeled 10/100 PC on the
Cisco
Unified IP Phone 8941 and 8945).
• 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-2 describes the network port connector pinouts.
Table C-2 Network Port Connector Pinouts
Pin Number Function
1BI_DA+
2BI_DA-
3BI_DB+
4BI_DC+
5BI_DC-
6BI_DB-
7BI_DD+
8BI_DD-
Note “BI” stands for bidirectional, while DA, DB, DC and
DD stand for “Data A”, “Data B”, “Data C” and “Data
D”, respectively.
