Huawei MU609 Mini Hardware Manual page 40

HUAWEI MU609 Mini PCIe Module
Hardware Guide

Ground plane: recommends a common ground plane for analog/digital/RF
grounds.

A metallic or plastic case with conductive paint is recommended, except for the
area around the antenna.
The HUAWEI MU609 module does not include any protection against over voltage.
Issue V0.1 (2013-05-16)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Electrical and Reliability Features
40