Table of Contents

Technical Specifications
Physical and Operating Environment Specifications
Cable Specifications
Regulatory Safety Compliance
Connections Specifications

Technical Specifications

The following sections describe the technical specifications for the Cisco SIP IP phone:

Physical and Operating Environment Specifications

The following table lists the physical and operating specifications of the Cisco SIP IP phone.

Table C-1   Cisco SIP IP Phone Operational and Physical Specifications

Specification  Value or Range 

Operating temperature

32 to 104 ° F (0 to 40 ° C)

Operating relative humidity

10 to 95% (noncondensing)

Storage temperature

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 adaptor

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

Distance Requirements

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

Cable Specifications

The following cables are required to connect the Cisco SIP IP phone:

Regulatory Safety Compliance

The Cisco IP Phone models 7960, 7940, and 7910 meet the following regulatory safety and compliance approvals:

Figure C-1 contains the FCC Class B Declaration for the Cisco IP Phone 7960, 7940, 7910, and 7910+SW.

Figure C-1   FCC Class B Declaration

Connections Specifications

The Cisco SIP IP phone has two RJ-45 ports that each support 10/100 Mbps half- or full-duplex connections to external devices—the network port and access port. You can use either Category 3 or 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 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 a LAN-to-phone jack. Use the PC-to-phone port to connect a network device, such as a computer, to the phone.

For a diagram identifying the different ports on the back of the Cisco SIP IP phone, see the "Connecting the Phone" section.

Posted: Sat Nov 29 15:19:40 PST 2003
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