Huawei TE20 Administrator's Manual page 130

TE20 Videoconferencing Endpoint
Administrator Guide
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Cleaning Precautions
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Battery Usage Precautions of the Remote Control
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Issue 01 (2016-09-01)
Ensure that the device does not get wet. If water gets into the device, disconnect the
power supply immediately and unplug all the cables connected to the device, including
the power cable, telephone cable, video cable, audio cable, network cable, and serial
cable, and then contact the appointed maintenance center.
Before 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.
Do not step on, pull, or overbend any cable. Otherwise, the cable may be damaged,
leading to malfunction of the device.
Do not use old or damaged cables.
In lightning weather, disconnect the device from the power supply and unplug all the
cables connected to the device.
Keep the power plug clean and dry, to prevent electric shock or other dangers.
If the device is not used for a long time, disconnect the power supply and unplug the
power plug.
If 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.
Ensure that no object (such as metal shavings) enters the device through the heat
dissipation vent.
Before 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.
Ensure that the three-phase power socket is grounded properly. The neutral line and the
live line cannot be connected inversely.
Do 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.
Before cleaning the device, stop using it, disconnect the power supply, and unplug all the
cables connected to the device, including the power cable, telephone cable, video cable,
audio cable, network cable, and serial cable.
Do not clean the device shell with any cleaning solution or cleanser spray. Use a piece of
soft cloth to clean the device shell.
Use only the recommended battery. Pay attention to the polarity of the batteries while
installing them.
If a battery does not fit in the device, do not apply force. Otherwise, the battery may leak
or explode.
To 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.
Do not use a new battery with an old battery. When you replace batteries, replace all of
them at the same time.
If you are not going to use the device for a long time, remove all the batteries.
If any battery leaks, emits smoke, or emits abnormal smell, stop using it immediately.
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D Safety Precautions
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