Huawei B315 LTE CPE Quick Start Quide page 10

Turn off the router and unplug the power adapter before installing any

external antennas.
External antennas are only suitable for indoor use. Do not use external

antennas during thunderstorms.
Only use external antennas provided by your network service provider.

The peak gain of the external antennas is 3 dBi.

3. Accessing the Internet through an Ethernet port
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