more f, less c - ieee 1904...4 cable is undergoing a fiber transition… 4 verb 1. use more f, less...
TRANSCRIPT
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Why More F, Less C?
“Fiber!”
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Why More F, Less C?
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4
Cable Is Undergoing A Fiber Transition…
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verb
1. Use more F, less C, in HFC
noun
1. The process or period of changing
from one state or condition to
another
verb
1. Undergo or cause to undergo a process
or period of transition
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• Leverages current head-end and CPE devices and processes • Allows for immediate FTTH triple play solution • 99% of cable greenfield FTTH deployments use RFoG • PON provides 5:1 to 10:1 OpEx improvement over HFC • Challenges: OBI, training
Cable’s Initial FTTH :: RF over Glass (RFoG)
1550 nm
CMTS
eQAM
RF
Combine
E/O
E/O 1610 nm WDM
Same as HFC Same as HFC FTTH
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Trend toward gigabit per second service offerings remains a challenge for RFoG deployments
But…
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10G E/GPON
1G EPON
2.5G GPON
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• E/GPON overlay is necessary for gigabit triple play services
• Data over E/GPON, voice & video over RFoG
• Challenges: OBI, CPE costs
Cable’s Step 2 FTTH :: RFoG + E/GPON
DPoX System (OLT)
1550 nm
CMTS
eQAM
RF
Combine
E/O
E/O 1610 nm WDM
WDM
1490nm/1577nm
1270nm/1310nm
CM
EPON ONU
WiFi 1
2
3
4
eDVA
RFoG ONU
Customer premise – RFoG+EPON
STB 5
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• EPON/GPON technologies and unified provisioning are key strategic components
• Cable Industry remains divided between EPON and GPON, but more prefer EPON
• Requires IP video solution
Cable’s Step 3 FTTH :: E/GPON
Video Phone Internet
DOCSIS
Provisioning
DPoG (GPON) Network
ODN DPoG
System (OLT)
ONU
ONU
ONU
DPoE (EPON) Network
ODN DPoE
System (OLT)
ONU
ONU
ONU
IP
Network
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9 Slide 9
FTTN – Distributed Solutions
Transport Ring
Coax drop networks
Solutions for coax-based drop networks
include Remote PHY, Remote
MAC/PHY, mini-CMTS, DCCAP, EPoC
Remote OLT Solutions
The OLT-in-a-node, or cabinet-based
OLTs are attractive solutions for some
operators
Hub
Hub
Hub
DWDM PON Aggregation
Use existing fibers to nodes, convert
multiple PON wavelengths to DWDM
grid for backhaul to hub sites. OLTs
located in Hub.
λ1,λ2 = PONA
λ3,λ4 = PONB PONA
PONB
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Analog, 10G E/GPON, 10G P2P, RFoG
• FTTMDU and in-building distribution solutions are a priority
FTTMDU
Slide 10
Fiber to the Floor (FTTF)
E/GPON terminated at each
intermediate distribution frame (IDF),
EoC or cat5 to each unit.
Fiber to the Unit (FTTU)
RFoG in transition, E/GPON
to each unit, same solution
as SFU
Transport Ring
Hub
Hub
Hub
Fiber to the Building (FTTB)
Traditional HFC node in main distribution
frame (MDF), or other DCA or C-DOCSIS
solution, or EPoC
CoaxFiber
transition
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CableLabs Fiber Transition Initiatives
Q3 2014 Q4 2014 Q1 2015 Q2 2015 Q3 2015 Q4 2015
EP
ON
G
PO
N
Fib
er
Tra
nsitio
n FTTH Transition Assessment
DPoE v2.0 Feature Testing
DPoE/DOCSIS Comparative Analysis
DPoEv2.0 – IOPs, ATPs
Next Gen PON - EPON, GPON, OnePON
DPoGv1.0
Triple Play Over PON
FTTH Modeling
FTTH Guidelines
L2HSD
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