Pac-Comm DR-100 Help Needed

Hi,

This classic piece of equipment was donated to me recently, and I may have a use for it. Apparently its a digipeater in a box, with a DR200 EPROM, L3-32K V615. Best of all, it seems to work. The only problem is that I need to program it. It looks like I would accomplish it thru the J2 DIP header, but I'm having a problem getting a pin-out for it. Before I start making a partial schematic from J2 back, I was wondering if anyone here may have some useful info.

Why would I want to use such a classic piece of gear? It was just the right price for experimenting with! Actually, another local ham and I would like to rig up some gel cell batteries, some solar cells, a rudimentary charge controller and an old HT to build a remote digi between us and the nearest, almost copyable packet network node (K2DLL is a major hub around here in the eastnetpacket.net system).

Any info would be appreciated!

73 de Jeff KC2SDS