ComKey 416

[JB-Alert]

Has anyone seen any information on this connecting arrangement in the BSPs?  It's a great design for installing Comkeys and I'm surprised that I've never seen one before.

[5415551212]

Interesting, I can't make out the model number in the photo can you post it?
Greg Ercolano has a great writeup on comkey systems here:
https://www.seriss.com/people/erco/comkey416/

[Babybearjs]

well, this is a dirst for me, I just got a #30AM unit and found the daughterboard not installed. does anyone have any Com-Key parts? I'd like to add the daughterboard to the unit to make it complete so it has all its options. also I need more info on the unit outside of the 4A manual so I can understand the unit better. I'm wondering which battery feed to use on it? I have a #20B2 PSU and need to know if I use the Battery B feed or the 18 VAC circuit?