3Com Router 5000 and Router 6000 v2.41Module Guide Chapter 1 Overview1-4z In case of the possible damage to MIMs, put the MIMs on the Printed Circuit Board (PCB) tray duringthe installation and replacement;z Hold the circuit board by the edge and do not touch the components and the surface of the PCB;z If you are not planning to install a new MIM/SIC after removing the old one, install a blank filler panelto keep the chassis dust-free and thereby to ensure the normal ventilation of the Router.1.5.1 Installing/Removing SICI. Tools requiredz Flat-blade screwdriverz ESD-preventive wrist strap and ESD-preventive gloveII. Removing blank filler panel from SIC slotFollowing the rotating direction shown in this figure, remove the captive screws of theblank filler panel using the flat-blade screwdriver.Figure 1-1 Removing the blank filler panel from a SIC slotIII. Installing SICFollow these steps to install a SIC:Step 1: Place the rear panel of the Router towards you;Step 2: Turn off the power switch of the Router and unplug the power cord;Step 3: Take out the SIC and align its remote edge with the edge of the slot on theRouter’s rear panel;Step 4: Push the SIC into the Router until it closely mates with the rear panel of theRouter;Step 5: Fasten the SIC into the Router with captive screws;Step 6: Power on the Router, and check the LEDs of the corresponding slot on thefront panel: after the initialization of the SIC, ON means that the SIC is operatingnormally and OFF means that its Power-On Self-Test (POST) has failed. In the lattercase, please contact your agent.