A-3
Cisco IP Phone Administration Guide for Cisco CallManager 3.2, Cisco IP Phones 7960/7940/7910
78-10453-04
Appendix A Technical Specifications
Network and Access Port Pinouts
Access Port Connector
Tabl e A-3 describes the acce ss port connector pinouts.
TableA-2 Network Port Connector Pinouts
Pin Number Function
1TD+
2TD-
3RD+
4 +48 Volts return1
1. When used to receive power from an inline
power card in the Cisco Catalyst switch.
5 +48 Volts return1
6RD-
7 +48 Volts source1
8 +48 Volts source1
TableA-3 Access Port Connector Pinouts
Pin Number Function
1RD+
2RD-
3TD+
4Not Used
5Not Used
6TD-
7Not Used
8Not Used