| Configuring the Wallbox eMH2 – Setting up data communication
36
NOTE
Communication with the backend
The router's firewall must be set up in such a way that communication is possible between the charging
station and the OCPP backend.
You can obtain all the access data from your backend operator. A description of the set-up can be found on
page38.
Connection via the LTE interface
An LTE USB stick is factory pre-installed at the SBC in the connections area behind the electronic components cover
in every Wallbox eMH2/reev backend bundle. You can retrofit all other Controller Wallboxes eMH2 for LTE function-
ality using the LTE accessory package E3BLTE1 (see "Accessories" on page10 and "Installing and connecting the
E3BLTE1" on page24). A mobile network connection can be established between the SBC and an OCPP backend via
the LTE USB stick of the Controller charging station.
1
Controller with Extender
charging station(s)
2
Backend (e.g. reev)
In order to establish a mobile network connection with an OCPP backend, a suitable SIM card must be installed in
the LTE USB stick when commissioning. You can find information about installation in the manual accompanying
the LTE USB stick.
The SIM card is usually included with your backend subscription: in this case, you will also receive the activation
data from your backend operator.
Proceed as follows to set up communication via LTE:
1 Click the Connectivity > Cellular tab and enter
the information provided by your backend operator
for the Access point name (APN), Username
and Password.
y Confirm by clicking the Save button.
2 Switch to the Maintenance > System tab and
click the Hard reset button in the System Restart
section.
y Your Controller/Extender system will now
restart with the selected settings.
A connection can now be established between the Controller charging station and the backend via mobile network
communications.
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