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Cisco Unified IP Phone 7960G and 7940G Administration Guide for Release 8.0 (SIP)
OL-7890-01
Chapter 1 Product Overview
Cisco Unified IP Phone 7960G and 7940G Overview
Figure 1-3
Cisco IP Phone Cable Connections
RS232
DC48V
10/100 SW
10/100 PC
+
58670
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3
4
5
6
7
1
1
AC/DC adapter port (DC48V) for power connector. For redundancy, you can use the AC adapter
even if you are using inline power from Cisco Catalyst switches. The Cisco Unified IP Phone
7960G and 7940G can share the power being used from the inline power and external power
source. If either the inline power or the external power goes down, the phone can switch entirely
to the other power source.
2
Power supply with AC plug.
3
Power cable with wall socket plug for connecting to power.
4
Network port (10 and 100 SW) RJ-45 to connect the phone to the network supporting 10- or
100-Mbps half- or full-duplex Ethernet connections to external devises. You can use either
Category 3 or Category 5 cabling for 10-Mpbs connections, but use Category 5 for 100-Mbps
connections. To avoid collisions, use full-duplex mode. You must use a straight-through cable on
this port. The phone can also obtain inline power from the Cisco Catalyst switch over this
connection.
