Ok, Now it is clear for me ，
Without Strap on the J17 (display), I have a RS232 level on the DIN and DOUT of the 8 contact cabel (to send the serial command to the Display).
The interface module wil be use only if i wand to load a niew configuration/programmation into the display, OK ? With straps set on RS232 position (P3 on interface module)
What kind of battery, can i put in the battery holder of the display ? (to save, for exemple te time settings or let the RTC running without power supply).
Big thank for your help !
Your quality product looks very interesting and I want to discover it in depth…
Reply To: I don't Know where I can connect or find the RS232 signalPOLE_BENDER2021-10-14T18:09:01+08:00