Help with DHV11/16 card?

Being stuck indoors by bad weather, I started tinkering with my PDP-11/23+ system :) The 11/23+ chassis came with a sixteen-serial-line (Camintonn DHV11/16) card which is complete with a rack panel of 16 DE-9 serial ports, and fortunately the scrappers had not cut the ribbon cable going to it. Also, somewhere I acquired an RL02 pack with TSX-Plus 5.0, which boots to RT11SJ and even runs TSX+, although I don't have all the devices the original system had. So I would like to set up the system for timesharing using the 16-line card. After perusing the TSX+ manuals I believe I can accomplish a system generation, except for one problem - I don't know the interrupt vector and CSR addresses for the Camintonn DHV11/16. Nothing on Google I could find, and on Bitsavers there is a DEC DHV11 manual but that's an eight-line card... can anyone help with tech info on this 16-line card? thanks Charles (doesn't really need a multi-user system since I'm the only user) :)