NBX IP Telephony Platforms 29V3000 Analog The V3000 Analog (Figure 1) houses the Network Call Processor (NCP),which manages call traffic and NBX Messaging, the system disk drive andpower supply, and front panel connectors for network and externaldevice connectivity.V3000 platforms come with 128 MB of memory. You must install anoptional memory upgrade to support some features. See Table 13 onpage 63 for more information.The 3C10600A is an earlier version of the 3C10600B V3000 Analog. Thefunction and the layout of the front panel connectors and LEDs is thesame for both models.CAUTION: Do not disconnect power during a system boot operationafter a software upgrade. On rare occasions, a system software upgradeincludes an upgrade to the system's flash memory image. The flashupgrade occurs during the boot operation following a system softwareupgrade. If you disconnect power during the flash upgrade, the bootsoftware may become corrupted and the system will need to be returnedto 3Com for repair. As the flash upgrade progresses, the system Consoledisplays these messages:Upgrade Older PROMUpgrading NCP Flash ....Number of attempts to upgrade the flash = 1NCP Flash Upgrade CompleteUsing disk 1 only Off OnUsing disk 2 only On OffSynchronizing — disk 1 is valid, disk 2 is becoming a fullymirrored disk. Flash rate indicates progress.If S1 and S2 stop normal flashing and intermittently flash twice,the mirroring process has failed.Flashing OnSynchronizing — disk 2 is valid, disk 1 is becoming a fullymirrored disk. Flash rate indicates progress.If S1 and S2 stop normal flashing and intermittently flash twice,the mirroring process has failed.On FlashingAlternating flash — the two disks are resynchronizing Flashing FlashingSynchronized On OnExplanation S1 S2