Value or RangeSpecification
• Cisco IP Phone 7811— 7.67 in. (195 mm)
• Cisco IP Phone 7821 — 8.11 in. (206 mm)
• Cisco IP Phone 7841 — 8.11 in. (206 mm)
• Cisco IP Phone 7861— 10.42 in. (264.91 mm)
Width
1.1 in. (28 mm)Depth
• Cisco IP Phone 7811— 0.84 kg
• Cisco IP Phone 7821 — 0.867 kg
• Cisco IP Phone 7841 — 0.868 kg
• Cisco IP Phone 7861— 1.053 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
Cisco IP Phone 7811, 7821, 7841, and 7861:
•
Category 3/5/5e/6 for 10-Mbps cables with 4 pairs
•
Category 5/5e/6 for 100-Mbps cables with 4 pairs
Cisco IP Phone 7841: Category 5/5e/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, it is assumed that the maximum
cable length between each Cisco IP Phone and the switch is 100 meters (330 feet).
Distance Requirements
Cable Specifications
•
RJ-9 jack (4-conductor) for handset and headset connection.
The Cisco IP Phone 7811 does not contain a headset jack.Note
•
RJ-45 jack for the LAN 10/100BaseT connection (on Cisco IP Phones 7811, 7821, and 7861) and the
LAN 1000BaseT connection (on the Cisco IP Phone 7841).
Cisco IP Phone 7800 Series Administration Guide for Cisco Unified Communications Manager
6
Cable Specifications
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