Huawei B311s-220 - Optional Configurations; Connecting Multiple Devices

Optional congurations
Installing external antenna
In addition to the build-in antenna designed to satisfy your basic needs, you can also install external antenna to the router to improve signal reception. Please
contact your carrier to purchase the antenna.
l Turn off the router and unplug the power adapter before installing any external antenna.
l External antenna is only suitable for indoor use. Do not use external antenna during thunderstorms.
l Only use external antenna provided by your carrier.
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