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User Guide (Tech Document)
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-2019 Seeed Technology Co., Ltd. All rights reserved. www.seeed.cc
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2)
As shown in the image below, please fasten the fiberglass antenna onto the base part, and then fasten
the whole part onto the vertical cylinder (maximum cylinder diameter: 50mm).
3)
Use a 1-meter antenna feed line to connect the lightening arrester with the fiberglass antenna.
6.2.4
Installing Ground Cable
Here we will connect the lightening arrester to the GND screw port on the gateway with a ground cable,
and then connect the whole device to the ground. The image below shows the location of the GND port at
the backside of the gateway.
1)
Prepare two copper cables, a shorter one (approx. 30cm) for connecting the lightening arrester with
the GND screw port (on the gateway), and a longer one for connecting the device to the ground.
2)
Fasten the lightening arrester to the short copper cable with screws, and then connect the two copper
cables to the GND screw port. Use the screw to connect and fasten them.
3)
Once the two cables are connected, connect the other end of the long cable to the ground. Depending
on your actual installation environment, you can connect it to the ground directly or connect it to the
copper ground bars.
1
2
Gateway's ground
screw port