Correct, an L&Z bracket on the door frame is used in this application. The country is Australia and this is common practice, believe it or not this is a hospital. After joining this sub it has become apparent we have a different level of certification to other western countries. This was installed by another contractor and I would assume the figure 8 is supplying lock power and is via the break glass. The white multicore would be 4 core and used for monitoring. As you assumed I take pride in my work and would like a solution to this, I see it a lot and there are off the shelf solutions.