How to connect first diagram of NC/NO lock for security intercom system MZ-IP-V103W

[@TmezonTechnology]

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[@1993derbozz]

Hi .. There is one thing that I dont understand. I recently bought a NC Lock. But I didnt understand how to install it. It is always open. What happens if there is a energy problem in my house. Does it mean, that my door will be always open. ?? In your video it is only locked when there is 12v energy. Can somebody explain it to me

[@derekt7606]

Works better plugged in.

[@TmezonTechnology]

Thanks for your opinion. We will improve it and update the video later.

[@mitmirit]

Second one is useless