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  1. KPSTAR

    VTH1550 won't unlock door strike

    Hi Guys, Newb here hoping and praying for some help.. I have managed to setup my VTO2000 with 2x VTH1550 (master/ slave). The devices can all see and talk to one another fine. However, they will not unlock the door strike for some reason. I initially thought it was a wiring issue, but have...
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