Littelfuse CIO-MLPII-PR Communications ModuleLittelfuse CIO MLPII PR Communications Module Description The CIO MLPII PR Profibus module can be DIN rail mounted, or mounted directly to a back panel. The CIO MLPII PRs compact size, ease of wiring and Profibus communications capability makes the use of traditional discrete devices on Profibus cost effective and simple. The CIO MLPII PR Module is compatible with Square Ds Model MLPII overload relay. It simply connects to the side of the MLPII and