Huawei B315 Series

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3. Accessing the Internet through an Ethernet port
 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.