Testing wired Kidde PI2010

Should testing one wired alarm set all of them off? I was testing our Kidde PI2010 after using the “hush” feature to quiet (what hopefully was) a false alarm. It triggered every alarm to go off in the house-- I’m assuming that’s the desired effect, because it tests the wired feature. Is that correct?

Unfortunately I did not find the culprit alarm since our alarms apparently don’t have a memory.

The PI2010 is a hardwired Interconnected smoke detector. If properly installed yes all interconnected detectors should sound whenever one is tripped.