Huawei NE40E-M2 Series Hardware Description page 289

2.
3.
4.
Issue ()
Connect one end of the coaxial cable to the Protect interface of the surge protector and
fasten the joint with a wrench.
Implement 1+3+3 waterproof protection where the coaxial cable and the Protect
interface of the surge protector are connected and fasten cable ties at both ends.
Fasten the surge protector to the GPS antenna support and use screws to secure it.
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