Cisco 7912G Administration Guide - Page 173
Pin Number, Function, Access Port Connector
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Appendix B Technical Specifications Network Port Pinouts Table B-2 Network Port Connector Pinouts Pin Number Function 1 TD+ 2 TD- 3 RD+ 4 +48 Volts return1 5 +48 Volts return1 6 RD- 7 +48 Volts source1 8 +48 Volts source1 1. When used to receive power from an inline power card in the Cisco Catalyst switch. Access Port Connector Table B-3 describes the access port connector pinouts. Table B-3 Access Port Connector Pinouts Pin Number 1 2 3 4 5 6 7 8 Function RD+ RDTD+ Not Used Not Used TDNot Used Not Used Cisco IP Phone Administration Guide for Cisco CallManager 3.3, Cisco IP Phones 7902G/7905G/7912G OL-6313-01 B-3
B-3
Cisco IP Phone Administration Guide for Cisco CallManager 3.3, Cisco IP Phones 7902G/7905G/7912G
OL-6313-01
Appendix B
Technical Specifications
Network Port Pinouts
Access Port Connector
Table B-3
describes the access port connector pinouts.
Table B-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 B-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