Chapter 2. Installation18 PACSystems* RXi Distributed IO Controller User Manual GFK-2816F2.3.4 Installing the IDM on the RXi ControllerThe IDM should be installed after the RXi Controller has been mounted on the panel orDIN rail.Place the IDM on the RXi and use a flathead or large Phillips screwdriver to hand-tighten thefour captive screws.2.3.5 Installing the Energy PackTo install the ICRXIACCEPK01A Energy Pack, refer to the PACSystems RXi Energy PackICRXIACCEPK01A Quick Start Guide, GFK-2835.