V0.5 2017-04-08
www.Ai-Thinker.com
LoRaWAN IOT Gateway RHF2S008P4G Installation Guide
Ai-Thinker
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Figure 3- 10 RHF2S008P4G fixed in field
3.3 Lightening Protection Cautions
Lighting protection include direct lighting protection and indirect lighting protection. We should
avoid fix the device to face the direct lighting protection. Below we just list some essential and useful
methods to protect from indirect lighting, induction lighting or surge.
1. The lightning rod should be fixed above the tower with device or gateway. And the gateway
should be in the protection area of the lightning rod.
2. When the gateway is fixed to the building, the gateway should be in the protection area of the
lightning rod which is on the top of the building. If there is no lightning rod on the top of the
building, please make sure that the gateway would not be in the influence area of the lightning,
or you must fix a lightning rod above the antenna and connect to the ground of the building or
lightning protection network.
3. The small lightning rod should be made of circular steel tube with diameter more than 16mm.
The lightning rod should be higher than the top of the antenna 1m or more.