Expansions and configuration 10.3 Installing expansion cards 10.3.2 Installing an expansion module Preparation Isolate the device from mains Installing expansion modules Steps for installing an expansion module: 1 Open the device. 2 Remove the fastening screws (1) and lift out the module bracket (2) 3 Remove the relevant steel slot cover (3). 4 Insert the expansion module (4) into the relevant slot. 5 Screw down the steel slot cover (3) for the expansion module. 6 Insert the module bracket again. 7 Loosen free module bracket (5), mount and screw down on the expansion module 8 Close the device. SIMATIC Rack PC IL 43 Operating Instructions, Edition 09/2005, A5E00432875-01 10-5