3Com NETBuilder II Installing Instruction

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

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3Com NETBuilder II Installing Instruction Manual pdf 37 page image

Chassis Description 2-9Back Panel The 8-Slot chassis has eight I/O slots and one main processor slot.Figure 2-9 8-Slot Chassis I/O Slot Numbering SequenceWARNING: Remove the filler panel only from I/O slots that will house an I/Omodule. All unused I/O slots require the filler panels to maintain proper coolingof the unit and regulatory compliance. Failure to cover open slots can result inoverheating of the NETBuilder II system and will invalidate the warranty.Floppy Disk Drive The 8-Slot chassis includes a 3.5 inch, 135 tracks per inch (TPI), 4 MB floppydisk drive that supports 1.4 MB and 2.8 MB DOS-formatted floppies. The driveis located on the right side of the front panel.The DPE module does not support the floppy disk drive.Press the eject button on the disk drive front panel to eject diskettes. The LEDon the front panel lights when a floppy diskette is being formatted, read, orwritten. Do not attempt to eject the diskette when the LED is lit.For information on replacing the floppy disk drive, see page 2-12.Backplane The backplane consists of a bus that is mounted vertically against the back ofthe card cage. When installed, the modules rest inside the card cage.Connectors on the backplane engage connectors on the modules.The backplane has a peak data rate of 800 Mbps.The backplane allows you to hot-swap an I/O module, which means that youcan install, or remove and reinstall, an I/O module without turning off thepower to the chassis.Figure 2-10 shows the location of the backplane, connectors, and power supplyin the 8-Slot chassis.12348765Main processor module slotI/O module slotsSlot 1Slot 2Slot 3Slot 4Slot 8Slot 7Slot 6Slot 5Slot 0