Huawei eLTE2.2 eA660 Series Product Description page 5

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Appearance
Figure 1-1 Appearance of eA660s
Issue Draft A (2013-04-30)
Surge protection in outdoor environments
Anti-shock capabilities that meet the IEC61373 (railway) and MIL-STD-810F (USA
military) standards
Shell protection that meets the IP67 standard
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eLTE2.2 eA660 Series CPEs
Product Description
Page 5 of 18