Cisco 7945G Administration Guide

D-2
Cisco Unified IP Phone 7965G and 7945G Administration Guide for Cisco Unified Communications Manager 6.1(3)
OL-17755-01
Appendix D Technical Specifications
Cable Specifications
Cable Specifications
• RJ-9 jack (4-conductor) for handset and headset connection.
• RJ-45 jack for the LAN 10/100/1000BaseT connection (labeled 10/100/1000 SW).
• RJ-45 jack for a second 10/100/1000BaseT compliant connection (labeled 10/100/1000 PC).
• 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 10/100/1000 SW on the Cisco Unified IP Phone.
• The access port is labeled 10/100/1000 PC on the Cisco Unified IP Phone.
Network Port Connector
Table D-2 describes the network port connector pinouts.
Cables Category 3/5/5e/6 for 10-Mbps cables with 4 pairs
Category 5/5e/6 for 100-Mbps cables with 4 pairs
Category 5e/6 for 1000-Mbps cables with 4 pairs
Note Cables have 4 pairs of wires for a total of 8 conductors.
Distance Requirements As supported by the Ethernet Specification, it is assumed that the
maximum cable length between each Cisco
Unified IP Phone and the
switch is 100 meters (330
feet).
Table D-1 Physical and Operating Specifications (continued)
Specification Value or Range
Ta b l e D-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 7945G Specifications

General

Brand	Cisco
Model	7945G
Category	IP Phone
Language	English