Hitachi airCloud HC-IOTGW Installation & Maintenance Manual page 18

(6) Fix the power board cover with screws.
3.2.2 4G Module Installation
4G Module is optional for airCloud Gateway.
If use 4G module, insert the 4G module on USB port as below:
NOTE:
● If having 4G and LAN simultaneously, 4G is perference when connecting to cloud.
Tighten screws
(torque: 0.6N•m)
Figure 3.10 Fix the Cover of Power Board
4G Module
Figure 3.11 Insert 4G Module
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