Safety Information
Keep the device away from re or heat sources, including electric heaters, ovens, stoves, and
candles. Otherwise, the shell of the device may become hot or melt, causing re in extreme
cases.
Replace deteriorated cables or power socket components on the power supply line or near the
device in a timely manner to eliminate safety risks.
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Before using the device, read these precautions carefully. Follow these precautions and instructions
to ensure optimal product performance and to avoid danger and legal or regulatory violations.
Fire-proof Precautions
Potentially Explosive Area
Do not place or operate the device in an environment with that contains ammable or explosive
gas or smoke.
Do not place ammable or explosive materials below or above the meter cabinet.
General Safety Precautions
Do not lead the strength member of the optical ber or other metal parts indoors. Do not install
telephone lines, network cables, power adapters or power adapter cables outdoors. These
measures will help to prevent damage to the device and injury to people, which are especially
possible during thunderstorms.
If the power adapter is damaged from human factors, and the inside circuit is exposed, do not
touch the exposed parts. Otherwise, security risks are present.
Keep the device out of the reach of children. Components and accessories are small and could
pose a choking risk.
Looking directly at the optical port may injure your eyes.
Do not use any power adapters that are not in the standard conguration. Otherwise, the device
may be abnormal or unsafe.
If a backup power unit (BBU) is available in the packing box, do not disassemble it, ret it, or
put it in a re. Otherwise, it may create a safety risk.
Instructions for Use
Use the device in a clean and well-ventilated indoor environment, out of direct sunlight.
Store devices and accessories in temperature –10°C to +35°C and relative humidity 30%–85%
RH for at most 9 months. If the ambient temperature or relative humidity is overhigh or overlow,
the device may be faulty.
Install the device in strict compliance with the requirements of the supplier. Ensure there is at
least 10 cm space surrounding the device for heat dissipation. During installation, keep the
device away from ammable objects and electric appliances that generate strong magnetic or
electric elds, including microwave ovens, refrigerators, and mobile phones.
The described input voltage range should comply with the local power grid. For example, the
input voltage of the device is 200–240 V AC for European Union; the input voltage of the device
is 100–130 V AC for the United States of America.
The power supply voltage of the device must meet the requirements on the input voltage of the
device.
Before use the power adapter, please check no damage on the adapter.
Use dry hands to connect or disconnect cables. Stop using the device and switch off the power
before connecting or disconnecting cables.
When there is lightning, switch off the power and disconnect all cables, including the power
cable, optical ber, and network cable.
Prevent objects from entering the device through the heat dissipation hole. Prevent water or
other liquids from entering the device.
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