Sounds like your ksu took a power surge and fried a card or motherboard to me. I'd take every card out of the system and see if it works. If it does, then simply put in one card at a time until you find the damaged one ( powering down between tests, never plug a card in with the systems power on ). Only the first 8 stations will work at first. If it doesn't come up with no cards in it and you've tried initilization, then the ksu motherboard is the problem and will have to be repaired or replaced.

But if you aren't familliar with the system, wait until an authorized technician can do this for you. Hopefully you have a back-up of the programming.

"I thought I was wrong once, but I was mistaken"