Why Choose the Smart Gateways P1 Splitter Pro?
Many splitters are passive and simply split the signal, which can lead to interference. This active splitter amplifies and monitors the signal on each output, allowing devices to operate independently without disruption.
2, 4 or even 6 active and isolated ports β devices work seamlessly side by side
Signal amplification up to 10x β ideal for long cables or multiple devices
Fully DSMR-compatible β works with all smart meters across Europe
Versatile applications β for EV chargers, boilers, heat pumps, inverters, home automation, and load balancing
Plug & Play installation β easy to connect and ready to use immediately
Highly cost-effective β maximum reliability at a competitive price
Example Applications
With this splitter, you can expand a single P1 port into 2, 4 or 6 ports, enabling you to:
Connect an EV charger with P1 port (e.g., Alfen, EVBox, Easee, Wallbox)
Connect a smart boiler or heat pump (e.g., Itho Daalderop, Nibe, Inventum, Vaillant)
Combine a Smart Meter WiFi Gateway with your existing devices
Implement energy management & load balancing in your home or business
Connect solar inverters for accurate monitoring
Power & Installation
DSMR5 smart meters: powered directly via the P1 port
The splitter receives power directly from the P1 port β no adapter needed.
Connecting multiple P1 devices simultaneously may require extra power. Simply add the optional power supply at checkout.
DSMR2 and DSMR3 smart meters: use an external USB-C power supply (5V β 1A) – When multiple dongles are connected, an external powersupply is required.
Plug & Play: connect the included P1 cable and the splitter works immediately
Monitoring & Status
Built-in LED indicators give an instant overview of:
Whether the splitter is active (PWR LED)
Signal amplification status
Whether connected devices are receiving data β each output has its own status LED that blinks when the device receives data from the smart meter
This makes it easy to check at a glance that everything is working properly.
Included in the Package
Smart Gateways Active P1 Splitter Pro (1-in / 2 or 4-out)
1x RJ12 P1 cable
Manual
Note: For DSMR2 and DSMR3 smart meters, an external USB power supply is recommended. (Easily added during checkout.)
Specifications
1x RJ12 input (P1)
2, 4 or 6 RJ12 outputs (active, isolated)
Built-in signal amplification & enhancement (up to 10x)
Power: via P1 port or USB-C (5V β 1A)
LED indicators per output
Compatible with all DSMR standards (2β5+)
Suitable for all European smart meters
Conclusion
The Smart Gateways Active P1 Splitter Pro is the ultimate solution for safely and reliably connecting multiple devices to your smart meter. With 2, 4 or even 6 active ports, signal amplification, and broad compatibility, itβs the best choice for both homeowners and businesses looking to manage energy intelligently.











