NBX Cards and Devices
43
BRI-ST Digital Line
Card
The ISDN BRI-ST (Basic Rate Interface) Digital Line Card (
Figure 14
) has
four separate ports, each of which accommodates two B channels and
one D channel. Each B channel carries user data at 64 Kbps and the
D channel operates at 16 Kbps. If the two B channels are bonded, the
transmission rate is 128 Kbps.
The 3C10164C-ST must reside on the same subnet as the
NCP. The
3C10164D
can be initialized and communicate with the NCP via IP (layer-3) or
Ethernet (layer-2). If the NCP and the 3C10164D card are located on the
same Ethernet segment, then layer-2 is used for the control path. If the
NCP and the 3C10164D card are located on different IP subnets, then
layer-3 is used. The 3C10164D can receive it IP information through a
DHCP server. The server must be configured for DHCP option 184
operation to provide the NCP IP address to the card. For more details
about configuring a remote card, see the
NBX Administrator’s Guide.
Figure 14
BRI-ST Digital Line Card (3C10164C-ST)
Figure 15
BRI-ST Digital Line Card (3C10164D)
CAUTION:
The BRI-ST Digital Line Cards are not approved for use in the
United States or Canada.
CAUTION:
This equipment does not operate when the main power fails.
Each
3C10164C-ST
card has the following lights and connectors:
■
BRI Port Status Lights
— Each BRI port has these status lights:
■
D
— On when this signaling channel is active.
■
B1
— On when this data channel is active (a call is in progress).
■
B2
— On when this data channel is active (a call is in progress).
During the Auto Discover process:
3C10164C 3Com NBX Quad BRI-S/T Card
CONSOLE
D
B1
B2
1
3
2
4
D
B1
B2
D
B1
B2
D
B1
B2
Содержание NBX
Страница 20: ...20 ABOUT THIS GUIDE ...
Страница 78: ...78 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 222: ...222 APPENDIX A SPECIFICATIONS ...
Страница 228: ...228 APPENDIX B CIRCUIT PROVISIONING ...