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Cisco BPX 8600 Series Installation and Configuration
Release 9.3.10, Part Number 78-11603-01 Rev. D0, July 2001
Chapter 4 BNI (Trunk) Cards
Broadband Network Interface Cards (BNI-T3 and BNI-E3)
Figure 4-1 BPX Switch Network Interface Group
Broadband Network Interface Cards (BNI-T3 and BNI-E3)
The BNI-T3 and BNI-E3 interface the BPX switch with ATM T3 and E3 broadband trunks, respectively.
These ATM trunks may connect to either:
• another BPX,
• an MGX 8220; or
• an MGX 8800
The BNI-3T3 back card provides three DS3 interfaces on one card. The BNI-E3 back card provides
three E3 interface ports. The BNI back card types are very similar, differing only in the electrical
interface and framing.
Any of the 12 general purpose slots may be used to hold these cards. Each BNI operates as a pair with
a corresponding Line Module back card.
Alarm
outputs
EXT/INT
clock
NMS
port
BPX network interface group
StrataBus backplane
Line
module-
BCC
Broadband
controller
card
primary
Interface
card
BNI
Back card
LM 3T3
or
LM 3E3
Back card
LM-2OC3-SMF,
LM-2OC3-SMFLR,
LM-2OC3-MMF,
or
BXM-622-SMF
Interface
card
BNI-155
Interface card
BXM-622
or
BXM-622-2
Back card
1 or 2 port
BXM-622-SMF
or
BXM-622-SMFLR
Broadband
controller
card
redundant
Line
module-
BCC
Alarm/
status
monitor
Line
module-
ASM
S6155
Back card
8 or 12 port
BPX-T3/E3
or
4 or 8 port
BXM-155-MMF,
BXM-155-SMF,
or
BXM-155-SMFLR
Interface card
BXM-T3/E3
8 or 12 port
or
BXM-155
4 or 8 port