Value or rangeSpecification
14° to 140°F (–10° to 60°C)Storage temperature
9.02 in. (229.1 mm)Height
10.13 in. (257.34 mm)Width
1.57 in. (40 mm)Depth
2.62 lb (1.19 kg)Weight
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
Power
Category 3/5/5e/6 for 10-Mbps cables with 4 pairs
Category 5/5e/6 for 100-Mbps cables with 4 pairs
Category 5e/6 for 1000-Mbps cables with 4 pairs
Cables have 4 pairs of wires for a total of
8 conductors.
Note
Cables
As supported by the Ethernet Specification, the
maximum cable length between each Cisco IP Phone
and the switch is assumed to be 330 feet (100 meters).
Distance requirements
For more information, see the Cisco IP Phone 8800 Series Data Sheet: https://www.cisco.com/c/en/us/products/
collaboration-endpoints/ip-phone-8800-series-multiplatform-firmware/datasheet-listing.html
Cable Specifications
The following information lists the cable specifications:
• RJ-9 jack (4-conductor) for handset and headset connection
• RJ-45 jack for the LAN 10/100/1000BaseT connection (10/100/1000 Network port on the phone)
• RJ-45 jack for a second 10/100/1000BaseT compliant connection (10/100/1000 Computer port on the
phone)
• 3.5-mm stereo line in/out jack (for optional external headset, speakers, or headphones), for Cisco IP
Phone 8861 only
• 48-volt power connector
• USB ports/connectors:
• One USB port for the Cisco IP Phone 8851
• Two USB ports for the Cisco IP Phone 8861
Cisco IP Phone 8800 Series Multiplatform Phones Administration Guide
14
About the Cisco IP Phone
Cable Specifications
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