lBefore plugging or unplugging any cable, shut down the device and disconnect the power
supply. While plugging or unplugging any cable, ensure that your hands are dry.
lDo not step on, pull, or overbend any cable. Otherwise, the cable may be damaged, leading
to malfunction of the device.
lDo not use old or damaged cables.
lIn lightning weather, disconnect the device from the power supply and unplug all the cables
connected to the device.
lKeep the power plug clean and dry, to prevent electric shock or other dangers.
lIf the device is not used for a long time, disconnect the power supply and unplug the power
plug.
lIf smoke, sound, or smell is emitted from the device, stop using the device immediately,
disconnect the power supply, unplug the power plug and other cables, and remove the
batteries. Then, contact the appointed maintenance center for repair.
lEnsure that no object (such as metal shavings) enters the device through the heat dissipation
vent.
lBefore connecting any other cable, connect the ground cable of the device. Do not
disconnect the ground cable until you have disconnected all the other cables.
lEnsure that the three-phase power socket is grounded properly. The neutral line and the
live line cannot be connected inversely.
lDo not scratch or abrade the shell of the device. The shed painting may lead to skin allergy
or malfunction of the device. If the shed painting material drops into the host, a short circuit
may occur.
Cleaning Precautions
lBefore cleaning the device, stop using it, disconnect the power supply, and unplug all the
cables connected to the device, such as the power cable, telephone cable, and RF cable.
lDo not clean the device shell with any cleaning solution or cleanser spray. Use a piece of
soft cloth to clean the device shell.
Battery Usage Precautions of the Remote Control
lUse only the recommended battery. Pay attention to the polarity of the batteries while
installing them.
lIf a battery does not fit in the device, do not apply force. Otherwise, the battery may leak
or explode.
lTo reduce the risk of explosion, do not use batteries of different types together. For example,
do not use an alkaline battery and a Mn-Zn battery together. It is recommended that you
use batteries provided or recommended by the manufacturer.
lDo not use a new battery with an old battery. When you replace batteries, replace all of
them at the same time.
lIf you are not going to use the device for a long time, remove all the batteries.
lIf any battery leaks, emits smoke, or emits abnormal smell, stop using it immediately.
lIf the battery fluid comes in contact with your skin or clothes, rinse with water immediately
and seek medical assistance.
HUAWEI TE40&TE50&TE60 Videoconferencing Endpoint
User Guide 2 Safety Precautions
Issue 02 (2014-01-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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