This guide describes how to set up an internet connection via LAN/Ethernet on ABL eMH2 and ABL eMH3 charging stations.
Note: This guide applies exclusively to the ABL eMH2 and ABL eMH3 product range.
Prerequisites
The following materials and access rights must be available before starting the setup:
Admin access to the local network router
Laptop with an Ethernet port
Ethernet cable (RJ45)
SBC with up-to-date firmware
Tip: A guide on how to update the SBC firmware is available here: ABL – Performing a Firmware Update.
Setting Up the LAN Connection
Step 1: Remove the LTE Stick
Disconnect the LTE stick from the USB port on the enclosure door. A connected LTE stick prevents the charging station from establishing a LAN connection.
Note: As long as the LTE stick is connected, a stable LAN connection cannot be established. Remove it before proceeding with the configuration.
Step 2: Open the Web Interface
Open the local SBC web interface of the controller charging station. A step-by-step guide is available here: ABL – Accessing the SBC Web Administration Interface.
Step 3: Check the OCPP Connection
Verify that the OCPP server connection is correctly configured. Navigate to: Connectivity -> OCPP
The following values must be entered:
OCPP version: 1.6
URL:
abl.reev.com
Step 4: Configure the IP Address
Navigate to the following menu item: Connectivity -> LAN
Here you can choose whether the charging station should obtain its IP address automatically via a local DHCP server, or whether you want to assign it manually.
Option A – DHCP (automatic): Leave the DHCP checkbox enabled. The IP address will be assigned automatically by the router.
Option B – Manual IP assignment: Uncheck the DHCP checkbox and save the setting. The input fields for manual configuration will then appear. Enter the required network details and save again.
Tip: The required network details (IP address, subnet mask, gateway, DNS) can be obtained from your IT administrator or directly from your router settings.
Step 5: Delete the Mobile Access Point
Navigate to the following menu item: Connectivity -> Mobile
Delete all entries for the mobile access point (APN), if any are present. Save the setting afterwards.
Note: If APN data remains entered, the charging station may continue attempting to establish a mobile connection, which can interfere with the LAN connection.
Step 6: Perform a Hard Reset
Navigate to the following menu item: Maintenance -> System
In the System Restart section, click the Hard Reset button. The charging station will automatically restart with the new settings.
Step 7: Reconnect the Ethernet Cable
Disconnect the Ethernet cable from your laptop and connect it to your router.
Note: Your router's security settings must allow communication between the charging station and the OCPP backend. The backend connection uses port 443. The charging station must also be able to perform DNS name resolution. If strict firewall settings are in place, contact your IT administrator.
Step 8: Verify the Connection
Finally, check the connectivity in the web interface under: Overview -> Monitoring
You can now access the administration interface via the IP address assigned to the controller charging station within your network.
Troubleshooting
Problem | Possible Cause | Solution |
Web interface not reachable after reset | IP address has changed | Identify the new IP address via the router and reconnect |
No backend connection despite LAN | LTE stick still connected | Remove the LTE stick and repeat the Hard Reset |
No backend connection despite LAN | APN data still entered | Clear the APN fields under Connectivity* -> *Mobile and save |
No backend connection despite LAN | Firewall blocking port 443 | Contact your IT administrator to release port 443 |
DHCP not assigning an IP address | DHCP disabled on the router | Enable DHCP on the router or assign the IP address manually |
Frequently Asked Questions
Can I use LAN and LTE at the same time?
No. The LTE stick must be removed before setting up the LAN connection, as it prevents the LAN connection from being established.
Which port does the backend connection use?
The connection to the OCPP backend runs via port 443. Make sure this port is open in your firewall.
What if I do not want to assign a fixed IP address?
You can leave DHCP enabled. The IP address will then be assigned automatically by the router. Note that the IP address may change if the router is restarted.
How do I find the new IP address of the charging station after the reset?
The currently assigned IP address can be found in the device list of your router or by using a network scanning tool.
Do I need to perform a Hard Reset after every configuration change?
Yes. A Hard Reset is required after configuration to ensure all network settings are applied correctly.