04-08-2025, 03:35 AM
(04-05-2025, 01:00 PM)Knightrider Wrote: If I measure the voltage between the output 12v terminal and output 1, when active it reads around 10.6V that doesn't seem to be enough for my siren. If I measure across the 12v input itself (from the PSU), I get 12.6v. If I connect the siren direct to the 12v PSU terminals, it sounds normally.
The output ports switch the voltage on the rightmost connector onto the other connectors, so you're trying to switch 12V onto something that's already at 12V. You need to connect one siren wire to the output, the other to GND.