Cisco 7821 Administration Guide

Access port (10/100 PC) connection
(optional).
5DC adaptor port (DC48V) (optional).1
Auxiliary port (optional).6AC-to-DC power supply (optional).2
Handset connection.7AC power wall plug (optional).3
Analog headset connection (optional).8Network port (10/100 SW) connection.
IEEE 802.3af power enabled.
4
Buttons and Hardware
The Cisco IP Phone 7800 Series has distinct hardware types:
• Cisco IP Phone 7811 No buttons on either side of the screen
• Cisco IP Phone 7821 Two buttons on the left side of the screen
• Cisco IP Phone 7841 Two buttons on either side of the screen
• Cisco IP Phone 7861 16 buttons at the right edge of the phone
The following figure shows the Cisco IP Phone 7841.
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
26
About the Cisco IP Phone
Buttons and Hardware

Cisco 7821 Specifications

General

Brand	Cisco
Model	7821
Category	IP Phone
Language	English