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Hello,

Well thanks for the tip!
The supplied RS232 cable is indeed wrong. Pin configuration on the print side connector is wrong.
Coincidental, the Rx is on the right pin, explaining why I was able to get the prompting from the OTGW.

It's programmed now! thanks!

regards, Lennard

Hallo, I've got he OTGW from the webshop (KIWI) completely soldered with RS232 interface I connected the supply and the RS232 to my laptop, as soon the power goes on I get the follwing messages, as expected: ----- Opentherm gateway diagnostics - Version 1.1 1. LED test 2. Bit timing thermostat 3. Bi...