Cisco Phone IP VoIP

Cisco Phone IP 7960G

Technical Specifications of the Cisco Phone IP 7960G/7940G

Height 8 in. (20.32 cm)

Width 10.5 in. (26.67 cm)

Depth 6 in. (15.24 cm)

Weight 3.5 lb (1.6 kg)

Power

100 to 240 VAC, 50 to 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.

Distance Requirements

As supported by the Ethernet specification, it is assumed that most phones that are deployed in the field will be within 330 ft (100 m) of a phone closet

The following cables are required to connect the Cisco IP Phone 7960G/7940G:

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.

Connection Specifications

The Cisco IP Phone 7960G/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.

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/7960g_7940g/sip/7_5/english/administration/guide/ver7_5/sipaxc75.pdf