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the grounding strip is inserted in the station through the opening in the
underground anchoring structure and connected to the grounding busbar
of the station.
• Communication cable
- There are several options to connect to the station operator's WAN network,
based on the station's location:
▪ Ethernet cable: use of type SFTP-6 shielded cable (which is not affected by
the interference from nearby power cables) is recommended;
▪ Optical cable;
▪ Telephone copper pair, using an ADSL connection. Secure connections
should be used to direct data traffic to the station operator’s Control
centre.
4.6 Communication and Internet connection
There are several ways to physically execute the communication connection with the charging
infrastructure Control centre:
• Direct connection to the station operator's WAN network, which can be executed
directly with a UTP (SFTP) cable or with the use of a fiber optic converter or ADSL router.
For the direct connection with the UTP cable inside the station, no additional
communication is needed. The appropriate port of the network switch is used for the
connection. For the optical cable connection, a fiber optic converter needs to be
installed inside the station. If ADSL connection is used, ADSL router needs to be installed
in the station. Regardless of the physical execution of connection, the station operator is
responsible to ensure adequate security of all data traffic. It is presupposed that the
WAN network is regulated by station operator’s own security policy. When ADSL
connection is used, the appropriate security policy needs to be established in
cooperation with the station operator or additional network equipment installed inside
the station to ensure a safe two-way data traffic. In the case of clustering of charging
stations, only the first station in the cluster can be equipped with a fiber optic converter,
while the other stations can be connected to it with a UTP/SFTP cable.
