Hi Ray,
thanks a lot for your quick response.
I already ordered a latching expander (together with a latching Opensprinkler) in the European store, so my last question still stands. Could I use the extension board to control my latching valves even if the main controller isn’t the “DC Latch” model? I could use the non-latching ports to control some relays, pumps, and so on while using the expander for the latching valves.