Installing the NBX 100 Chassis 69A well-organized physical configuration can simplify:■ Management of incoming telephone lines, by associating line cardports with specific telephone numbers■ Troubleshooting, by associating groups of channel numbers withspecific cards■ System expansionInstalling theNBX 100 ChassisYou can mount the NBX 100 chassis on the wall or in an equipment rack.Installing the DiskDriveThe disk drive holds the NBX 100 Call Processor software, theconfiguration database, and NBX Messaging software.3Com recommends that you install the disk drive in the chassis beforeyou mount the chassis on a wall or in a rack.A system requires only one Call Processor and disk drive, even when youhave more than one chassis. For example, an installation can have twochassis to accommodate additional line cards, but only one chassis holdsthe Call Processor and disk drive.CAUTION: To avoid damage to electronic circuits, always wear ananti-static grounding strap when handling the disk drive or NBX systemcards. When you ground the strap, do not ground it to the NBX chassisbecause the chassis is not grounded until you install it in a properlygrounded setting.If you purchased an upgrade to the NBX voice mail (to add more voicemail ports), you cannot install the upgrade license key unless the diskdrive is installed in the correct chassis. One of the chassis boxes has anextra label which lists a voice mail key code. Be sure to install the diskdrive in the chassis that came with the key code label. If you discardedthe chassis boxes, look on the system invoice for the chassis containingthe voice mail key code label.
