This is an overview of the Radionics 6112 panel and the 620 keypad, including programming with the 5200 programmer, and reporting to the 6600 central station receiver. These panels despite being one of the simpler Radionics systems, still have a lot more flexibility than others that were released at the time.
Also I do apologize for the noise in the background, and my rather shaky camerawork.
I must again thank the HappyJigg brothers for helping with the keypads. check out their channel here:
https://www.youtube.com/user/HappyJigg
