ZAPTEC Pro Mode D'emploi page 6

English
If you use a three-phase IT network for installation, we recommend that you use
a four-conductor cable in case you want to install a transformer at a later date for
better charging performance. This will allow you to make the neutral connection
in the fuse box rather than at each individual charging station, which will make
upgrading easier in the future.
Make sure that the installation is designed for maximum and minimum short-circuit
current. The fitter is responsible for calculating and designing the installation
infrastructure so that it is compliant with the requirements.
Zaptec always recommends installation of the charging stations with all three
phases where available. This ensures that the balance between load and phase is
dynamic and makes it possible to use all available energy in the installation and
between the charging stations.
Internet and network requirements
Protocols
4G, WiFi 2.4 GHz, IEEE 802.11 b/g/n (static channels 1–11)
Minimum signal strength per charging station: –75 dBm
DHCP server with a sufficient number of IP addresses – one for every device connected
The anticipated data traffic for every Zaptec Pro is around 3 MB a day.
Network security
All traffic and communication between the charging stations and the cloud solution is
encrypted. All of the following network services are required to allow Zaptec Pro to work
together with Zaptec Portal. All the ports stated are outgoing ports, and you have to open
them in active firewalls. Zaptec Pro links to the necessary services without opening incoming
ports, even if they are located behind a NAT.
MQTT
TCP port 8883: zapcloud.azure-devices.net
A connection to Azure IoT Hub, which uses MQTT over TLS, acts as a primary
communication channel between Zaptec Pro and Zaptec Portal. The condition of the
charger is transmitted to Zaptec Portal, and it receives control commands such as start/stop
charging. Communication is encrypted using TLS v1.2, and the server certificate is verified
by Zaptec Pro. When it is connected, the server verifies the charger by means of a unique
password that is generated during production. More information on Azure IoT Hub can be
found here: https://docs.microsoft.com/en-us/azure/iot-hub/about-iot-hub
HTTPS
TCP port 443 (multiple domains)
Zaptec Pro connects to Zaptec Portal by means of HTTPS in order to download firmware
updates. This communication is encrypted. Zaptec Pro verifies the server certificate before
the update is download, and the firmware update itself is verified cryptographically before
being installed.
The following domains are used during firmware updates:
- zapcloud-api.azurewebsites.net
- devices.Zaptec.com
- api.Zaptec.com
Outgoing ports
Port Type of port
123 UDP
443 TCP
8883 TCP
53 DNS
6
Domain(s)
no.pool.ntp.org
zapcloud-api.azurewebsites.net
devices.Zaptec.com
api.Zaptec.com
zapcloud.azure-devices.net