Table C-1 shows the physical and operating environment specifications for the Cisco Unified IP Phone 7940G and 7960G.
Table C-1 Physical and Operating Specifications
Value or Range
32° to 104°F (0° to 40°C)
Operating relative humidity
10% to 95% (non-condensing)
14° to 140°F (-10° to 60°C)
8 in. (20.32 cm)
10.5 in. (26.67 cm)
6 in. (15.24 cm)
3.5 lb (1.6 kg)
•100-240 VAC, 50-60 Hz, 0.5 A—when using the AC adapter
•48 VDC, 0.2 A—when using the in-line power over the network cable
Two (2) pair of Category 3 for 10-Mbps cables Two (2) pair of Category 5 for 100-Mbps cables
As supported by the Ethernet Specification, it is assumed that most Cisco Unified IP Phones should be within 330 feet (100m) of a phone closet.
The Cisco Unified IP Phone 7940G and 7960G has these cable requirements:
•RJ-9 jack (4-conductor) for handset and headset connection.
•RJ-11 jack for console access (labeled AUX or RS232).
•RJ-45 jack for the LAN 10/100BaseT connection (labeled LAN).
•RJ-45 jack for a second 10/100BaseT compliant connection (labeled 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.
Network and Access Port Pinouts
Although both the network and access ports on the Cisco Unified IP Phone 7940G and 7960Gare used for network connectivity, they serve different purposes and have different port pinouts.
Network Port Connector
Table C-2 describes the network port connector pinouts.