16 Introduction to the Wallbox eM4 Single
Communication between a Controller and a backend via WLAN
x
The Controller can communicate with an Internet-connected network via its WLAN interface.
x
Communication via WLAN must be set up in the
ABL Configuration App
(see page 35 onwards).
x
Figure:
The Wallbox eM4 Single Controller
1
is connected
wirelessly to a WLAN network
2
, which establishes commu-
nication with the selected backend
4
via the Internet
3
.
1
2
3
4
Communication between a Controller and a backend via LAN
x
The Controller can communicate with an Internet-connected network via its LAN interface.
x
The connection is made via one Ethernet cable (Cat5 or better) per wallbox, which is routed into the wallbox via the supply cable
area.
x
Communication via LAN must be set up in the
ABL Configuration App
x
Figure:
The Wallbox eM4 Single Controller
1
is connected
by cable to a LAN network
2
, which establishes communi-
cation with the selected backend
4
via the Internet
3
.
2
3
4
1
Communication between a Controller and a backend via LTE
x
Each Controller wallbox comes with an LTE USB stick that can be fitted with the SIM card of a backend operator and used in the
wallbox. This process is described starting on page 32.
x
In the reev ready variants, the SIM card for communication with the reev backend is already pre-installed in the LTE USB stick in
the Controller.
x
LTE communication with the backend must be set up in the
ABL Configuration App
(see page 35 onwards).
x
Figure:
The Wallbox eM4 Single Controller
1
communicates
via the LTE USB stick with an LTE receiver
2
, which estab-
lishes the connection to the selected backend
3
.
LTE
2
3
1
