Current version: v3.1
The P1 reader ethernet is based on the Eport E20. The E20 module is a bridge between the serial and ethernet. The reader has a build in logic inverter which makes the data from the P1 port readable for systems like Home Assistant, DSMR-reader, Domoticz, P1 Monitor and other systems.
The modules are designed to work with DSMR 5. Working with DSMR 5 means that the Smart Meter can deliver enough power through the P1 port to power the reader. Therefore no extra power adapter is needed to work.
The module is compatible with older Smart Meters, having DSMR version 2, 3 or 4. As older versions of DSMR can’t provide enough power through the P1 port, an external power source is required to work. That can be any adapter with an USB-C port and is capable of delivering 250mA. This should be no problem for any USB-C Phone charger.