EchoLife ET655 IP Phone User Manual
1 Safety Precautions
3
Operating Requirements:
Do not let a child operate the device without guidance.
Do not let a child play with the device or any accessory. Swallowing the accessories
may lead to peril.
Use the accessories provided or authorized by the manufacturer only.
The power supply of the device shall meet the requirements of the input voltage of
the device. Use the provided lightning protection power socket only.
Before plugging or unplugging any cable, shut down the device and disconnect it
from the power supply.
While plugging or unplugging any cable, make sure that your hands are completely
dry.
Do not tread on, pull, or over-bend any cable. Otherwise, the cable may be damaged,
leading to malfunction of the device.
Do not use an old or a damaged power cable.
During lightning weather, stop using the device and disconnect it from the power
supply. Unplug the power plug and the ADSL
（
Asymmetric Digital Subscriber
Line
）
twisted pair (the radio frequency cable) to avoid lightning strike.
If the device is not used for a long time, disconnect it from the power supply and
unplug the power plug.
Do not look directly into the optical interface and the laser-transmitting interface on
the device, or the infrared transmitting interface on the remote control with your
eyes. Otherwise, your eyes may be injured.
In any of the following cases, stop using the device, disconnect it from the power
supply, and unplug the power plug immediately: there is smoke emitted from the
device, or there is some abnormal noise or smell. Contact the specified maintenance
center for repair.
Avoid any object (such as metal shavings) from entering the device from the heat
dissipation intakes.
Before connecting any other cable, connect the grounding cable of the device first.
Do not disconnect the grounding cable until you disconnect all other cables.
Make sure that the three-phase power socket is grounded reliably. The neutral line
and the live line shall not be connected inversely.
Do not scratch or abrade the shell of the device. This may lead to malfunctions of
the device. The shed painting material may also lead to skin allergy.
