The delay was stressful, but the results were worth it! Manitoba’s very own 6 input (x 3 phase, always) protective relay became a reality!
The Analog Input Board (AIB) was configured to manage any mix of CTs and PTs, up to 18 discrete inputs.
The L-PRO came out first, then the T-PRO. Their primary hardware difference was the mix of CTs & PTs, and the T-PRO had a separate input for oil temperature transducer.