
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
Содержание 3C10122 - NBX Business Telephone
Страница 20: ...20 ABOUT THIS GUIDE...
Страница 80: ...80 CHAPTER 1 INTRODUCTION...
Страница 120: ...120 CHAPTER 2 INSTALLING SYSTEM HARDWARE COMPONENTS...
Страница 142: ...142 CHAPTER 4 ANALOG LINES...
Страница 162: ...162 CHAPTER 8 T1 DIGITAL LINE CARD...
Страница 192: ...192 CHAPTER 10 CONFIGURING IP TELEPHONY...
Страница 198: ...198 CHAPTER 11 TROUBLESHOOTING...
Страница 224: ...224 APPENDIX A SPECIFICATIONS...
Страница 230: ...230 APPENDIX B CIRCUIT PROVISIONING...
Страница 240: ...240 APPENDIX D OBTAINING SUPPORT FOR YOUR 3COM PRODUCTS...