I have the DCS manual and the Safety I/O board hardware option for a LR Mate R30 ib Plus controller. I know that to interface with this board, I have to use the Safety I/O Connect option in the DCS menu. My question is: is the Safety I/O board sourcing or sinking? For the Safety Inputs from peripheral devices, is it ok if i feed it a signal powered by an external 24V? I'm guessing the Safety Peripheral Outputs are sourced. Do I connect using the 24V pin on the CRMA 90 Connector (pin 1). I don't want to assume anything, so any help is appreciated. I couldn't find wiring diagrams in the manuals.