PCD7.F150S | Extra (2nd) RS-485 SKU: PCD7.F150S Parent Item Parent Item - Additional Cost Has Item Option Details PCD7.F150S | Extra (2nd) RS-485 Single port Isolated Serial Interface (Slot-A) DetailsBackDetailsPCD7.F150S | Extra (2nd) RS-485 Single port Isolated Serial Interface (Slot-A)