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When to connect a charging station wired (LAN) and when via SIM (GPRS)?
 
Overview
A charging station can be connected to a Backoffice through the internet. There are two ways to connect a charging station to the internet:
  • Wired via a Local Area Network (LAN)
  • Wireless via a mobile GSM connection
    Note that each backoffice requires its own specific simcard provided by the Charge Point Operator.
    Some backoffices may not support 2G or 4G
 
In the following cases it is advised to connect charging stations wired to the internet:
  • No or poor GPRS network coverage (below -90dBm)
  • Underground parking garage
  • Concrete constructions
  • Remote location 

In the following cases it is advised to connect charging stations via GPRS to the internet.

  • Charging station cannot be connected to the internet via the available LAN (for instance, due to firewalls).
  • Desired independence from the local internet connection.
In cases where you are unable to work with both options, it is possible to locally connect a LAN network to the internet using a 4G modem/router. Also consider the use of an external antenna to this external modem.