Chapter3 Setting Up the Cisco Unified IP Phone
Before You Begin
3-4
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager
OL-10008-01
Warning
Ultimate disposal of this product should be handled according to all national
laws and regulations.
Statement 1040
Warning
Do not work on the system or connect or disconnect cables during periods of
lightning activity.
Statement 1001
Warning
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits
to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits,
and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45
connectors. Use caution when connectingcables.
Statement 1021
Caution Only use the proper Cisco approved external power supply. Reference the
installation manual provided with the phone.The following warnings apply when you use an external power supply.
Warning
This product relies on the building’s installation for short-circuit (overcurrent)
protection. Ensure that a fuse or circuit breaker no larger than 120VAC, 15A U.S.
(240VAC, 10A international) is used on the phase conductors (all
current-carrying conductors).
Statement 13
Warning
The device is designed to work with TN power systems.
Statement 19
Warning
The plug-socket combination must be accessible at all times because it serves
as the main disconnecting device.
Statement 66