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How does the 10250TGS and 10250TGR break glass stations work?

Breaking the glass with the hammer provided makes the contact block go CLOSED.    The contact block provided is a normally closed logic level block that is being held open by the presssure put on it by the glass disc.  When the disc is broken, the contact returns to it's normal state, which is closed.

Can I use a normally open (NO) contact block on the break glass station?