3Com V3000 ANALOG, Installation Manual

Page: 36 / 252

36 C
HAPTER
1: I
NTRODUCTION
NBX Expansion
Chassis
To connect extra cards to an NBX system, you can add an NBX expansion
chassis to your network. Typically, you add the expansion chassis on the
same subnet as the NCP and then use the Auto Discover feature to add
new cards to the NBX database.
V3000 Gateway Chassis
The V3000 Gateway Chassis (3C10605A) contains four card slots so that
you can connect optional interface cards to your NBX system. Two
redundant uplink ports provide 10/100 Mbps switched Ethernet
connections. Use the upper port to connect to the LAN. The lower port is
normally inactive and becomes active only if the upper port experiences a
link failure. Both ports show a positive link status even though only one
port at a time is active.
CAUTION: The power cord is the disconnect device. The power outlet
must be near to the unit and easily accessible.
Using disk 1 only N/A Off On
Synchronizing — disk 0 is valid, disk 1 is becoming a
fully mirrored disk. LED 3 flash rate indicates
progress.
If LED 3 stops normal flashing and intermittently
flashes twice, the mirroring process has failed.
N/A On Flashing
Synchronizing — disk 1 is valid, disk 0 is becoming a
fully mirrored disk. LED 2 flash rate indicates
progress.
If LED 2 stops normal flashing and intermittently
flashes twice, the mirroring process has failed.
N/A Flashing On
LED 2 and LED 3 flash alternately: the two disks are
resynchronizing N/A Flashing Flashing
Synchronized N/A On On
Explanation S1 S2 S3