A P P E N D I X C Technical Specifications Of The Cisco Unified Ip Phone 7960G And 7940G; Cable Specifications; Regulatory Safety Compliance; Connection Specifications - Cisco 7960G Administration Manual

Cable Specifications

Cable Specifications
The following cables are required to connect the Cisco Unified IP Phone 7960G and 7940G:
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Regulatory Safety Compliance

For international agency compliance, safety, and statutory information on Cisco IP phone models in the
7900 series, refer to Regulatory Compliance and Safety Information for the Cisco IP Phone 7900 Series
at http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/english/ipp7960/iphrcsi3.htm.

Connection Specifications

The Cisco Unified IP Phone 7960G and 7940G has two RJ-45 ports that each support 10/100 Mbps half-
or full-duplex connections to external devices—the network port and the access port. You can use either
Category 3 or Category 5 cabling for 10-Mpbs connections, but use Category 5 for 100-Mbps
connections. On both the LAN-to-phone port (left RJ-45 port facing the back of the phone) and the
PC-to-phone port (right port), use full-duplex to avoid collisions. Use the LAN-to-phone port to connect
the phone to the network. Use the PC-to-phone port to connect a network device, such as a computer, to
the phone.
For a diagram that identifies the different ports on the back of the Cisco Unified IP Phone 7960G and
7940G, see the
Cisco Unified IP Phone 7960G and 7940G Administration Guide for Release 8.0 (SIP)
C-2
RJ-11 for the handset connection.
RJ-45 jack for the LAN connection (labeled "10/100 SW").
RJ-45 jack for a second 10BASE-T compliant connection (labeled "10/100 PC").
48-volt power connector. The diameter of the center pin in the phone power jack (Switchcraft 712A)
is 0.1 in (2.5 mm). The center pin is positive (+) voltage. The miniature power plug required to mate
with the power jack on the phone is a Switchcraft 760 or equivalent.
Figure 1-3 on page
Appendix C Technical Specifications of the Cisco Unified IP Phone 7960G and 7940G
1-5.
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