Understanding The Cisco Unified Ip Phone Components - Cisco 3951 Administration Manual

Understanding the Cisco Unified IP Phone Components

Caution
Caution
Warning
Warning
Warning
Understanding the Cisco Unified IP Phone
Components
Cisco Unified SIP Phone 3951 Administration Guide for Cisco Unified CallManager 5.1
3-4
Inline power circuits provide current over the cable. Use the Cisco provided cable
or a minimum 24 AWG communication cable.
The following warnings apply when you use an external power supply.
Only use the proper Cisco approved external power supply. Reference the
installation manual provided with the phone.
This product relies on the building's installation for short-circuit (overcurrent)
protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15 A U.S.
(240 VAC, 10 A international) is used on the phase conductors (all
current-carrying conductors).
The device is designed to work with TN power systems.
The plug-socket combination must be accessible at all times because it serves
as the main disconnecting device. #331
The Cisco Unified SIP Phone 3951 includes these components on the phone or as
accessories for the phone:
Network Port, page 3-5
•
Handset, page 3-5
•
• Speakerphone, page 3-5
Installing the Cisco Unified IP Phone, page 3-7
•
Chapter 3 Setting Up the Cisco Unified IP Phone
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