mstrlucky74
Senior Member
- Location
- NJ
When powering a door holder with 24v power from fire alarm system do you need a control module?
When powering a door holder with 24v power from fire alarm system do you need a control module?
When powering a door holder with 24v power from fire alarm system do you need a control module?
So they can be powered via 24v not 120v?