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
Table A-3
describes the access port connector pinouts.
Table A-2
Network Port Connector Pinouts
Pin Number
Function
1
TD+
2
TD-
3
RD+
4
+48 Volts return
1
1.
When used to receive power from an inline
power card in the Cisco Catalyst switch.
5
+48 Volts return
1
6
RD-
7
+48 Volts source
1
8
+48 Volts source
1
Table A-3
Access Port Connector Pinouts
Pin Number
Function
1
RD+
2
RD-
3
TD+
4
Not Used
5
Not Used
6
TD-
7
Not Used
8
Not Used