Cisco 7912G - Page 28

Chapter 1 Introducing Your Cisco IP Phone
Connecting Your Cisco IP Phone
1-6
Cisco IP Phone 7905G/7912G User Guide for Cisco CallManager
78-15080-02
Step 2: Connect the Handset
Connect the handset to the handset port. Ensure that the end of the cord with the
longer uncoiled section is connected to the body of the phone.
Step 3: Connect the Phone to Power
If your system administrator delivered your Cisco IP Phone with a Cisco power
supply, connect the power supply plug to the DC adapter port on the back of the
phone. Then use the power cable to connect the power supply to a standard power
outlet in your workspace.
If your system administrator delivered your phone without a power supply, your
phone probably receives power through the Ethernet connection.
The following warnings apply when you use the external power supply with the
Cisco IP Phone:
Warning This product relies on the building's installation for short-circuit (over current)
protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S.
(240 VAC, 10A international) is used on the phase conductors (all
current-carrying conductors).
Warning The device is designed to work with TN power systems.
Warning The plug-socket combination must be accessible at all times because it serves
as the main disconnecting device.