Zte ZXHN H2640, Maintenance Management Manual

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SJ-20200714160642-002 | 2020-07-27(R1.0) 1-1
Chapter 1
Safety Precautions
Note
Before using the device, read the following safety precautions. ZTE bears no liability to
the consequences incurred by violation of the safety instructions.
 Read all the safety cautions carefully before using the device.
 Only use the accessories included in the package, such as power supply adapter
and battery.

Do not extend the power cord, otherwise the device will not work.

The power supply voltage must meet the requirements of the device input voltage (
The voltage fluctuation range is less than 10%).
 Keep the power plug clean and dry to prevent any risk of electric shock or other
dangers.
 Disconnect all the cables during a lightning storm to prevent the device from
damage.
 Power off and unplug the power plug when the device is not in use for a long time.
 Do not attempt to open the covers of the device. It is dangerous to do so when the
device is powered on.

Power off and stop using the device under the conditions such as, abnormal sound,
smoke, and strange smell. Contact the service provider for maintenance if the device
is faulty.
 Ensure proper ventilation to the device. Place the device away from direct sunlight.
 Keep the device ventilated and dry. Never spill any liquid on the device.
 Do not place any object on the device to prevent any deformation or damage to the
device.
Environment Requirements
Usage Cautions