My office has a T1600G-28PS that keeps crashing, all lights off, but fans are on, cleaned it out, reset al plugs (they do come loose after years) put back on-line and pressed reset.  Worked all day, then when came in the morning, was down.  Contact tech support, of course, no longer supported, and they recommended a replacement Smart switch, (SG2428P) which I ordered.  I would like to resurrect the T1600G as a backup, or possibly donation.  Any suggestions.  Tech says no firmware version available for this model.  

FYI model selected is not correct, no selection forthe T-1600G

All appreciated.