How to Connect an Alfen Charger | Knowledge Portal

This guide walks you through connecting an Alfen charger to the eMabler platform via the ACE Installer.

Prerequisites

ACE Installer — download the latest version from Alfen's support website. Contact Alfen support if you need access.
Internet connection for the Alfen unit (Ethernet or Wi-Fi). See Alfen's documentation for how to set this up.
The charger must already be created in eMabler with a known Charger ID. See: Connecting a Charger to a Site.

Step 1: Firmware Update

In ACE Installer:

Navigate to General > General.
Click Update Firmware.
Select the latest firmware version.
Click Start Upload.

The update can take several minutes — please be patient.

Step 2: Set the correct timezone

In ACE Installer:

Navigate to General > Location.
Set the timezone for the charger's location.
Click Sync Time.
Confirm the charger's date and time are correct after the sync.

Step 3: Set up the backend

Alfen ships a built-in preset for connecting to eMabler — you do not need to enter the OCPP URL manually.

Navigate to Connectivity / General.
Set the backoffice preset to eMabler.

Note: If the charger was ordered with the eMabler preset, Alfen pre-installs the TLS root certificate as part of the preset — Step 4 is not needed. If you are selecting the preset manually on a charger that wasn't ordered with it, the certificate is not installed automatically — proceed to Step 4.

Step 4: Upload root certificate (if preset was set manually)

Required when the charger was not ordered with the eMabler preset — per Alfen, the preset only auto-installs the certificate when ordered with it; selecting the preset manually does not. Also a fallback if Step 3's preset doesn't connect out of the box.

Download Alfen_eMablerCert_Latest.fwi (attached to this page).
In ACE Installer, navigate to General / General.
Choose the downloaded .fwi under the firmware file location.
Click Start Upload.

The upload may take several minutes.

Step 5: Set the ChargeBox ID

In ACE Installer:

Navigate to General / General.
Enter the ChargeBox ID under Customer ident. number.
The ChargeBox ID must match the Charger ID set on the charger in eMabler.

Save and restart

Confirm all changes with Save and restart the unit.

Important: Alfen explicitly recommends rebooting the charger after any configuration change. If something isn't working after a change, reboot before troubleshooting further.

Verify the connection

In eMabler Connect, find the charger and confirm its status is Available.

AHP platform

This guide covers Alfen's NG platform. For Alfen's newer AHP platform:

Backoffice presets on AHP include the TLS certificate, so a charger ordered with the eMabler preset is ready to connect with no manual certificate handling.
If an AHP charger is not ordered with an eMabler preset, the certificate must be installed via Alfen's CSI (Custom Certificate Integration) process — contact Alfen to request an eMabler certificate via CSI.
Alfen has indicated a Wired preset for AHP with eMabler is being added. Once available, this becomes the easiest path for AHP. Confirm availability with Alfen at order time.

Troubleshooting

Issue	What to check
Charger doesn't connect after Step 3	Try Step 4 (upload root certificate). Older Alfen firmware may not trust eMabler's CA out of the box.
Charger shows up in eMabler but is offline	Verify internet connectivity (Ethernet / Wi-Fi) and that the firmware update in Step 1 completed.
Charger doesn't appear in eMabler at all	Verify Customer ident. number in ACE Installer matches the Charger ID in eMabler exactly.
Cannot reach the charger from ACE Installer	Confirm you're on the right network / within Bluetooth range per Alfen's documentation.
Configuration change isn't taking effect	Reboot the charger. Alfen requires a reboot after any configuration change.

Need Help?

If you need assistance with the setup, contact eMabler Support.