Cisco 6821 Administration Guide

Access port (10/100 PC) connection
(optional)
4DC adapter port (optional)1
Handset connection5Power adapter (optional)2
Analog headset connection (optional)6Network port (10/100 SW) connection;
IEEE 802.3af power enabled
3
Cisco IP Phone 6841 Multiplatform Phones Connections
Connect your phone to your LAN with an Ethernet cable to enable full functionality of your phone. You need
to use a power adapter to power the phone. Do not extend the LAN Ethernet cable outside the building. For
your phone to work, it must be connected to the IP telephony network.
Access port (10/100/1000 PC)
connection (optional)
4DC adapter port1
Handset connection5Power adapter2
Analog headset connection (optional)6Network port (10/100/1000 SW)
connection
3
Cisco IP Phone 6851 Multiplatform Phones Connections
Connect your phone to your LAN with an Ethernet cable to enable full functionality of your phone. If your
Ethernet port is equipped with Power over Ethernet (PoE), you can power the phone through the LAN port.
If you don't have PoE available, then you need to use a power adapter to power the phone. Do not extend the
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
25
About the Cisco IP Phone
Cisco IP Phone 6841 Multiplatform Phones Connections

Cisco 6821 Specifications

General

Brand	Cisco
Model	6821
Category	IP Phone
Language	English