FYI..........
I did a PDL3500 mortise install about a month ago and the place on the template for the 1/2 inch hole for the wires is way off. It should be at least 3/8" higher. Best bet is to drill all the other mounting holes the use the inside mount plate as a guide. I prefer wrapping the wires with friction tape when going thru steel doors for added protection. I just remembered this as I've another one to install next week.......
Just a bit of useless info that I thought I'd pass along...........if this is the right place for it...........if not.....tisk, tisk.......