Analogue systems

having just received an RS-15 with no instructions and fewer brains, I 
plugged 4 analogue solutions modules into the Doepfer slots, and 
puzzled over the Analogue Systems orientation. Not thinking to look at 
the ends plugged into the modules for their obvious signs, I believe I 
put them in the rack power supply backwards and powered it up. No signs 
of life from the RS-60 EG's, so I eventually gave up and realized the 
mistake this morning. Have I done some damage?
Reversing those connectors and attempting to power it back up brought 
the same results. I havent tried listening to any other modules, I 
simply looked for some LED feedback, under gate or one shot conditions.
Appreciate any help!
kelly