Transcript Slide 1

Fiber to the “x” (FTTx)
Selecting the Best Access Architecture
FTTx Access Architectures
 What Drives Access Architecture
Decisions?
–
–
–
–
–
Bandwidth demands
Political/Regulatory requirements
Time to market constraints
Competitive threats
Capex Constraints
 Access Architecture Options
– Fiber to the Premise (FTTP)
– GPON
– Active Ethernet
– Fiber to the Curb (FTTC)
– Fiber to the Node (FTTN)
– ADSL2+
– VDSL2
– Bonded xDSL
® Adtran, Inc. 2008 All rights reserved
2
Bandwidth Drivers: Internet Traffic
Source: Cisco VNI Forecast 2008-2013
Global Internet Traffic: 40% (CAGR) from 2008 -2013
® Adtran, Inc. 2008 All rights reserved
3
Bandwidth Drivers: IPTV
High-definition video and ultra high speed Internet services raise the
benchmark for bandwidth requirements in the access network.
3D TV will drive bandwidth requirements higher
® Adtran, Inc. 2008 All rights reserved
4
Bandwidth Drivers: Political/Regulatory
FCC’s National Broadband Plan
 Goals
– 2015
 50 Mbps down / 20 Mbps up actual data rates to 100 million
homes
– 2020
 100 Mbps down / 50 Mbps up actual data rates to 100 million
homes
 4 Mbps down / 1 Mbps up actual data rates to all homes
 Components
– Last mile Access
– 2nd /Middle Mile Aggregation
 Properties
– Peak Rates
– Capacity to deliver “actual rates”
 (95% percentile rate returned by speed test)
® Adtran, Inc. 2008 All rights reserved
5
Fiber to the Premise (FTTP)
® Adtran, Inc. 2010 All rights reserved
FTTP: GPON
HDTV
RFoG / Return
1550nm down
Total Access 5000
MSAP
IPTV Head End
1490 nm down
1310 nm up
N X GE
Splitter
IP Core
2.4G down
Outdoor ONT
1.2G up
CO
Internet
GE
Total Access 5006
Voice Switch
Splitter
Indoor ONT
20Km + Reach
RT
• Completely standards-based G.984 GPON offering
• Single fiber, standard wavelength support
• OLT supported in any available access slots
• All Total Access 5000 transport options supported
® Adtran, Inc. 2008 All rights reserved
7
Total Access GPON Solution
 Total Access 5000 OLT
– GPON 2-Port Optical Line Terminal
– 21 OLTs/42 PONs per Total Access 5000
• 1,344 SUBs
– 2.488 Gbps downstream,1.244 Gbps
upstream
– Completely GEM based
Total Access 5000
 Triple-play ready
– Voice – GR008, GR303, MGCP, SIP
– HS Data
– RF and IPTV
 GPON Optical Network Terminals
– Complete Line of ONTs
 SFUs
 SBUs
 MDUs
® Adtran, Inc. 2008 All rights reserved
GPON OLT
TA3xx Series ONTs
Voice Gateway
8
FTTP: Active Ethernet
1 GE per sub
Total Access 5000
MSAP
IPTV Head End
N X 1G/10G
SFU ONT
IP Core
CO
Internet
10G ERPS Ring
Total Access 5006
Voice Switch
Up to 80Km Reach
RT
• Point-to-Point Fiber from CO or RT locations
• Dedicated 1GE per subscriber
• Same provisioning and OA&M capabilities of GPON
• The most future-proof access architecture
® Adtran, Inc. 2008 All rights reserved
9
Total Access Active Ethernet Solution
 Total Access 5000 AE OLT
– 24 Port Active Ethernet OLT
– 48 Port Active Ethernet OLT (Q1 ‘11)
– 240 Active Active Ethernet subs per
chassis today (480 future)
– 1G per sub
– 10G ERPS transport rings
Total Access 5000
 Triple-play ready
– Voice – GR008, GR303, MGCP, SIP
– HS Data
– Identical functionality to GPON
 AE Optical Network Terminals
– Complete Line of ONTs
 SFUs
 SBUs
 MDUs
® Adtran, Inc. 2008 All rights reserved
AE OLT
TA3xx Series ONTs
Voice Gateway
10
Carrier Ethernet over Fiber
GPON and Active Ethernet are ideally
suited for business service delivery
® Adtran, Inc. 2008 All rights reserved
11
GPON vs. ActiveE Cost Per Sub
(Aggregation Electronics Only)
# of Subs
GPON
AE Sub
GPON
vs. Active Ethernet
Cost Per
64
$78
$242
48
$104
$229
32
$125
$281
24
$167
$229
16
$250
$281
12
$333
$333
8
$500
$438
GPON: $5,000 per 2-Port GPON OLT with optics
AE: $2,500 per 24-Port AE OLT plus $125/sub for optics
GPON is the best solution for high-density, short reach applications or when
fiber availability is constrained. ActiveE is the best solution for lower-density,
longer reach applications..
® Adtran, Inc. 2008 All rights reserved
12
GPON Advancements: Extended
Range Optics
40 km Reach
30 km Reach
20 km Reach
20 km Reach
2
Standard reach today
Available from ADTRAN Now
Class C optics
® Adtran, Inc. 2008 All rights reserved
13
Next Generation PON: NGPON1
 Consists of two different developments
– XGPON1: 10G downstream, 2.5G
upstream
– XGPON2: 10G downstream, 10G
upstream
– Both are wavelength compatible with
GPON
 NGPON1 maintains
GPON
up
XGPON
Up
1260
1280
XGPON
Up
– XGPON, GPON and RFOG
simultaneously and independently
the on same fiber plant
 Standards schedule
1320
GPON
up
down
1480
1340
1320
Vid
1580 XGPON
1600
XG
Vid
Down
Guard
Guard
Ovr band Dwn band
Video1540
1520
1560
overlay
Guard
band
XG
overlay
1500
1500
1520
1520
1560
1560
1540
1540
1580
1580
Down
1600
1600
XG
Guard
Guard DwnGuard
Guard
band
band
band
band
1560
1560
1580
1580
1
1600
1600
– Requirements/Optics: September 2009
– TC layer / management: June 2010
® Adtran, Inc. 2008 All rights reserved
1
Guard
Guard
Guard
Guard DwnGuard
Guard
band
band
band
band
band
bandXGPON
Video
1500
1520
1540
1560
1580
1600
1480
1500
1520
1540
1480 GPON
1500
1520
1540
GPON
Down
Guard
Guard
down
band
band
1480
1480
1360
1340 XG 1360
Guard Dwn Guard
Ovr band
band
1260
1280
1300
GPON
Guard
down
band
– TDM each direction (as opposed to WDM)
1480
1500
GPON
– OMCI managed
GPONdown
– 20km range
GPON
Down
 Wavelength plan orthogonal to GPON
1300
14
Future Fiber Access: WDM-PON
 1-2.5 Gbps per drop
1:N Passive
Power Splitter
TDM-PON
Central
office
with
OLT
 Color Adaptive ONTs
– Wavelength “seed” from CO
 Applications
t1
ONU1
2
t1
2
N
1
N
t2
t2
tN
2
1
1
N
tN
2
– Ethernet-based Residential
Access—1G peak & average rate
– Higher BW for MDU/FTTPedestal
1
λ2N
ONU2
ONUN
 ONU becomes Ethernet switch
– Integrated Access
 Residential and Business
WDM-PON
 Challenges
– Higher OLT cost than GPON
 seed source, multiple xcvrs
1:N Passive
Wavelength Splitter
Central
office
with
OLT
ONU1
ONU2
ONUN
Believe cost to be similar to xGPON
with higher bandwidth potential
® Adtran, Inc. 2008 All rights reserved
15
Fiber to the Curb (FTTC)
® Adtran, Inc. 2010 All rights reserved
Fiber to the Curb (FTTC)
 Total Access 1108VP
– 8 Ports of VDSL2+POTS
– Chaining of multiple units
along a fiber route
– Full video support
– Fully sealed for above or
below ground deployment
– Remote powering
– Small form factor (10” W x
15” H x 4” D)
Ideally suited to fill in the coverage
gaps with FTTH Networks
® Adtran, Inc. 2008 All rights reserved
17
Fiber to the Node (FTTN)
® Adtran, Inc. 2010 All rights reserved
Incremental Costs of Deploying Fiber
Deeper into the Network
2009 Benchmarks – Incremental Costs to Pass and
Connect in Urban and Suburban FTTH Builds
Carrier/Analyst Estimate
Cost to Pass per HH
Incremental Cost to
Connect per HH
Verizon FiOS
$700
$650
Hiawatha Broadband
$800
$697
$750
$412
SNL Kagan (Analyst)
~$350/home
FTTN
(40+ Mbps/sub)
FTTC
(up to 100 Mbps/sub)
~$400/home
~$300/home
Feeder Cable
GPON OLT
FTTH
(100+ Mbps/sub)
® Adtran, Inc. 2008 All rights reserved
~$300/home
Splitter (Fiber
Distribution Hub)
Distribution Cable
~$650/home
Drop Cable
Fiber Access
Terminal
GPON
ONT
Broadband
Home
Router
19
Access Network: pushing fiber deeper
4-fibers/200 subs (2GbE)
Central Office
3,000-5,000 ft 20-40 Mb/s
Feeder Plant (F1)
FTTN (Remote
Terminal)
Remote
Terminal
Feeder Distribution
Interface
Distribution
Plant (F2)
FTTN (Remote
Node)
FTTC
100-500 Mb/s
Drop Plant
12,000 ft
18,000 ft
384 kb/s
® Adtran, Inc. 2008 All rights reserved
up to 12 Mb/s
© 2006, ADTRAN, Inc.
20
xDSL Performance Comparison
VDSL2 Superior for:
- Very High Rates
- Very Short Loops
Bonded ADSL2 and Bonded VDSL2 8a
Provide Similar Reach at ~30 Mbps
Target Range for Enhanced
Broadband Services
Lower Cost/Port ADSL2+
Provides Better 10 Mbps Reach Compared to VDSL2
® Adtran, Inc. 2008 All rights reserved
21
ADTRAN FTTN Solutions
 Total Access 5000
– Full MSAP Capabilities
– Overlay or combo solutions
– Integrated voice gateway
– Full IPTV support
 Total Access 11xx Series
– Sealed FTTN DSLAMs
– VDSL2 and ADSL2+ Solutions
– Ideal for remote node locations
– Lowers total cost of deployment
 Total Access 12xx Series
– Temperature-hardened, rack mount
– Ideal for remote cabinet deployment
® Adtran, Inc. 2008 All rights reserved
22
OSP Innovation – the OSP DSLAM
• Sealed DSLAM design eliminates the need for:
• Expensive cabinet enclosures
• Noisy, power hungry heat exchangers
• Costly site construction
• 3rd generation sealed DSLAM design
• 8+ years of engineering expertise in sealed DSLAM
design
• Over 45,000 units deployed in the field today
• Lower total landed cost for a sealed DSLAM changes
the broadband business case
1st Gen 1124s
® Adtran, Inc. 2008 All rights reserved
2nd Gen 1148s
3rd Gen Solutions
23
Changing the Total Cost of Deployment
• Deployment is greatly simplified
using OSP DSLAMs
–
–
–
–
–
–
No new right of way
No new pad work
Significantly lower shipping costs
Installation doesn’t require a crane
Smaller crew onsite for installation
No expensive heat exchanger
solutions
– Lower power requirements
• Electronics costs keep falling but
total deployment costs aren’t
getting any cheaper
– Metal (i.e. cabinets) keeps climbing
– Lower density areas can’t prove in
due to first cost turn-ups
® Adtran, Inc. 2008 All rights reserved
24
Remote Node VDSL2
Total Access 1148V
• Total Access 1148V Host and Client
– 48 ports of G.993.2-compliant VDSL2 ports
– Support for “5 Band” VDSL2: Profiles 8a-d, 12a-b, 17a
– Backwards compatible with ADSLx Modems
• Fully sealed and weatherproof for outdoor deployment
® Adtran, Inc. 2008 All rights reserved
25
VDSL2 Rate/Reach
VDSL2 Downstream and Upstream (Profile 17a - 24 Self, 24 AWG)
60
50
30M to 50M 24AWG;
40
Rate (Mbps)
Downstream
Upstream
30
20
10
0
0
1
2
3
4
5
6
7
8
Loop Length (kft)
® Adtran, Inc. 2008 All rights reserved
26
Delivering 50+ Mbps over Copper
VDSL2 Bonding
48 Port VDSL2 Line Card
ADTRAN EFM Bonding Features
– VDSL2 DSLAMs leverage same EFM
Bonding engine used in ADTRAN
Carrier Ethernet solutions
– G.998.2-compliant
– Any-port bonding across the line card
– Up to 12 pairs per bonding group for
business-class NCTE
– High-speed bonding engine allows for
ultra high-speed service deployment (up
to 200M over 2 pairs with Profile 17a)
1
VDSL2/
ADSL2+
8port
DSP
ADTRAN
EFM
Bonding
Engine
8port
DSP
•
•
8port
DSP
•
•
•
•
8port
DSP
48
GE
TA5000
1148V
2pr Bonded VDSL2
Residential CPE
8xVDSL2 Bonded Uplink
ADTRAN NCTE
® Adtran, Inc. 2008 All rights reserved
27
FTTN: Total Access 1124P
• Part of 11XX OSP Family
• GR-487 Compliant enclosure
• 24 port ADSL2+ Combo (w/POTS)
• Hosted by Total Access 5000
• 255 nodes per network
• Part of the TA5000 Network
• Copper or Fiber fed
• 8xHDSL4 EFM
• 3 Repeater HDSL4 Support for Long
Loop Deployments
• GigE Network Uplink
• Span or local powered
• Great for Rural DSL Extension
® Adtran, Inc. 2008 All rights reserved
28
Advancements in FTTN: VDSL2
Vectoring
 What Vectoring Provides?
140
– Eliminates self cross-talk on
short copper loops
– Significant gains on short loops
(< 3 kft)
– Short loop nature of this
technology leads to smaller
node sizes
– Need small-form-factor, remote
DSLAMs to take advantage of
cross-talk cancellation
capabilities of vectoring
100
Rate (Mbps)
 Deployment Guidelines for
Vectoring
120
80
60
40
20
Upstream, 12-self crosstalk
0
500
1000
1500
2000
Reach (feet)
2500
3000
VDSL2 with vectoring is ideally suited for remote node
deployments
® Adtran, Inc. 2008 All rights reserved
29
Reach for NBP Target Rates
0
1000
2000
3000
Reach (ft)
4000
5000
6000
7000
25 D
25 D - V
Bonded 50/20
10 U
10 U - V
50 D
50 D - V
Single Pair 50 / 20
26 AWG
24 AWG
20 U
24 AWG BBF
20 U - V
50 D
50 D - V
Bonded 100 / 50
25 U
25 U - V
100 D - V
Single Pair 100 / 50
50 U - V
Nominal Rates based on measured Profile 17a performance with 12 disturber w.c. self crosstalk, V-denotes measured performance in -140
dBm/Hz white noise, approximately the limit that can be achieved with vectoring. Profile 30a may boost upstream reach at high rates
® Adtran, Inc. 2008 All rights reserved
30
Hybrid Architectures
® Adtran, Inc. 2010 All rights reserved
Total Access 1148A-DMT
Market-leading Sealed
FTTN DSLAMs
Best-in-Class Carrier Ethernet Products
Industry’s First Sealed DSLAM with > 100 Mbps
Bonded Copper Backhaul
Ethernet over
Bonded Copper
ADSL2+
NxGE
® Adtran, Inc. 2008 All rights reserved
1148A-DMT
32
Total Access 1148A-DMT
Sealed FTTN DSLAM w/ Bonded Copper Uplink
GE
CO or RT
EFM Aggregator
>75 Mbps
@ 10,000 ft.
>100 Mbps
@ 8,000 ft.
Remote
Node
Integrated
Fiber Uplinks
Cross1148A-DMT connect
10+ Mbps
ADSL2+
Line Powering
over the Data
Pairs Reduces
Pair Constraints
and Lowers
Deployment
Costs
10+ Mbps
ADSL2+
• Bonded DSL copper transport to sealed Total Access 1148A-DMT DSLAMs
located closer to the subscriber to drive higher bandwidth services
• Integrated bonded DSL copper transport on existing pairs eliminates multiple
components and reduces pair requirements, delaying the expense of fiber
deployment
® Adtran, Inc. 2008 All rights reserved
33
Extending Coverage Area for High
Speed Services Over Copper
Fiber-fed DSLAM w/ Multipair DSL Bonding
NxGE
Copper-fed DSLAM w/ Multipair DSL Bonding
75 Mbps @ 10 kft
(8 Pairs)
Local xDSL
Subscribers
Distribution Area 1
Copper-fed DSLAM w/ Multipair DSL Bonding
75 Mbps @ 10 kft
(8 Pairs)
Local xDSL
Subscribers
Distribution Area 2
Local ADSL2+
Subscribers
Distribution Area 3
Extended High Speed Service Range Over Copper
® Adtran, Inc. 2008 All rights reserved
34
Summary
® Adtran, Inc. 2010 All rights reserved
Complete Access Solutions
Broadband Product Suite for Copper and Fiber Delivery
Central Office
® Adtran, Inc. 2008 All rights reserved
FTTN
FTTC
Customer Premises
36
Question and Answers
® Adtran, Inc. 2008 All rights reserved
37