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Cisco PublicBRKBBA-2006
DWDM PON Architecture
FTTx
Access Network
IP/MPLS
Edge/core
N-PE
Ethernet/MPLS
Aggregation Network
• Single feeder fiber from CO to remote node
=> duct space needs similar to GPON
• Single drop fiber per subscriber from the remote node
User
Access Network
OLT
Street Cabinet
or Underground
Enclosure
U-PE
Central Office
Business
Customer
FTTH
Customer
DSL
Customer
Outdoor
DSLAM
AWG
RX
TX
RX
TX
ONT
ONT
UBR2
32x
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
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