I don’t know if it is really fixed, as users are still having issues:
My smartmeter is pushing every 1-2s over the optical interface. I’m not able to change the push time. The question is how to get the data into Openhab. I’m still not sure if an USB-to-serial adapter is a good idea. But what are the alternatives.
There are TTL/RS485-to-Ethernet adapters, but as far as I know the smartmeter binding is not supporting ethernet. Does anybody have more details here, if it might work?