3Com NETBuilder II Installing Instruction

Also see for NETBuilder II: Installation guide Installation guide Installation guide Installation guide

Contents

3Com NETBuilder II Installing Instruction Manual pdf 42 page image

2-14 CHAPTER 2: NETBUILDER II 8-SLOT BRIDGE/ROUTER9 Reinstall the bracket containing the new floppy disk drive in the chassis.a The three locking pins on the bottom of the bracket align with three keyholeslots on the bottom of the chassis. Slip the pins into the wide part of thekeyhole slots.b Slide the bracket toward the front of the chassis.c Reinstall the two screws that secure the disk drive bracket to the faceplate.10 Reinstall the cover.a Position the cover slightly behind the front of the chassis.b Lower the cover and slide it toward the front of the chassis so that itengages the back of the front panel.c Secure the cover with the screws you removed earlier from the back andsides of the chassis.11 If your system was previously mounted in a rack, reinstall the rack-mountbrackets on the chassis and remount the system.12 Make sure the power switch is off (O is pressed down). Plug the power cordinto the power supply and the outlet.13 Turn on the system.Replacing the Backplane To replace the backplane in the 8-Slot chassis, follow these steps. You will needa short #1 Phillips screwdriver and Phillips screwdriver to fit a #6-32 screw.1 Turn off the system and unplug the power cord from the outlet andthe power supply.2 If your system is mounted in a rack, remove it from the rack and remove therack-mount brackets from the chassis.3 Remove the cable strain-relief bracket, if it is installed.4 Remove the main processor module and all I/O modules from the chassis.Loosen the thumbscrews and push the ejector levers open to removethe modules.5 Remove the power supply from the chassis.a Remove the six screws that secure the power supply to the chassis.b Grasp the handle on the power supply and pull it out of the chassis. Youmay feel slight resistance as the power supply connector disconnects fromthe backplane.6 Remove the cover from the chassis.a Remove the screws from the back and sides of the chassis.b Slide the cover toward the back of the chassis and lift it off.