XG-PON - Asia Biotech Invest 2015

10G-PON and NG-PON
in the FTTH ecosystem
Penang, June 2014
Udo Fetzer
Agenda
10G-PON and NG-PON in the FTTH ecosystem
Lessons learned at G-PON and E-PON
Upgrade scenarios and co-existence of different PON
technologies
Challenges in the field
Role of test instruments and systems in securing best
customer experience
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Present - Situation and Lessons Learned
Fiber is installed in harsh environments (“Power Point is meeting Reality”)
Easy and robust installation required
Not enough fiber experts available for a realistic FTTH roll out
Time is money –
Optimized workflow crucial for high installation rates and lowest OPEX
All in one test tools required - compact, light, automatic
Automatic Fiber Inspection essential
How to maintain test reports and data
PON monitoring systems for minimized truck rolls
Not a unified best practice
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Example - Contamination and Signal Performance
1/2
CLEAN CONNECTION
3
DIRTY CONNECTION
Fiber Contamination and its Effect on Signal Performance
Clean Connection
vs.
Return Loss 67.5 dB
Insertion Loss 0.25 dB
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Dirty Connection
Return Loss 32.5 dB
Insertion Loss 4.87 dB
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Overcome Road Blockers at FTTh Mass Roll Out
Not enough qualified engineers for
Installation
Turn Up
Trouble Shooting
Enormous demand for training but limited time and budget
Requirements on Test Tools
Fully automatic super simple to use testers
(“instruments adapt to user‘s skill set“)
Shortest test set up and test time
Advanced test documentation including
comprehensive data for experts
Instruments/tools need to adapt to the real workflow
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Recommendation –
How to Guarantee Best Customer Experience
Establish best practices –
“Do it right first time”
Use intelligent test tools – turn fiber
beginners into fiber experts
(Gerhard Neumann 1917-1997)
Follow proper procedures and workflows –
minimize errors
Complete network documentation &
certification
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PON Evolution
Evolution of Optical Access Standards
Source: FSAN FTTH Council White Paper
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Traditional PON Standards
Max # Branches
Speed (Gbits/s)
Downstream
Upstream
B-PON
G-PON
E-PON
32
64 (128)
32
155
.620
1.25
1.25
2.5
1.25
.155
62
.155
.62
1.25
2.48
1.25
1480-1500
1480-1500
1490
Wavelengths (nm)
Downstream
(Voice, Data)
Upstream
Downstream
(RF Video Overlay)
Reference
Standards
WDM overlay possible
1260-1360
1260-1360
1300
1550
1550
1570
ITU-T G.983.x
ITU-T G.984.x
IEEE 802.3ah
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NG (Next Gen) PON Standards
NG-PON1
Max # Branches
10GE-PON
RFoG
RF over glass
64
128/256
considered
DWDMPON
64
64
64
128/256
considered
10G
Like selected
G/E-PON:
1.25G
May fall under
NG-PON2
40G
May fall under
NG-PON2:
10/40G
Speed (Gbits/s)
Downstream
10G
Upstream
XG-PON1: 2.5G
XG-PON2:
10G
10G
Like selected
G/E-PON:
.155 – 1.25G
Wavelengths (nm)
Downstream
(Voice, Data)
1480-1500
1480-1500
1490
TBD
1260-1360
1310
RF Return Path:
1570 or 1610
1577nm
1550nm
Yes, TBD
IEEE 802.3av
SCTE SP910
Not yet defined
Upstream
WDM overlay possible
1260-1360
Downstream
1550 or 1577nm
(RF Video Overlay)
Reference
ITU-T G.984.x
Standards
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XG-PON1
XG-PON1
4 times more bandwidth (10G Downstream, 2.5G Upstream)
Co-existence with current GPON
No impact on outside plant equipment, including fiber and splitters
Market research confirms that most GPON operators consider 10G
GPON as next step
Source: FSAN FTTH Council White Paper
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Co-existence of G-PON and XG-PON
Overlay of 2 additional wavelengths for 10 Gbps services of XG-PON/10 GE-PON
G-PON and XG-PON on same fiber
Downstream data signals at 10 Gbps at 1578nm
Upstream signals at 1 Gbps, 2.5 Gbps or 10 Gbps at 1270nm
Requires special in-service XG-PON OPM (selective for up to 5 wavelengths)
Upstream
1270 ±10nm
1310 ±20nm
XG-PON
GPON
nm
1260
1280
1300
1320
1340
1360
Downstream
1490 ±10nm
1555 ±5nm
1500
XG-PON
10GE-PON
Video Overlay
GPON
1480
1578 ±3nm
1520
1540
1560
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1580
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NG-PON2 spectrum - rough consensus
G-PON
XG-PON
upstream
upstream
1260 1270 1280 1290 1300 1310 1320 1330 1340 1350 1360
N
G
2
N
G
2
N
G
2
N
G
2
N
G
2
N
G
2
N
G
2
N
G
2
1530 1531 1532 1533 1534 1535 1536
G-PON
downstream
NG
2
N
G
2
N
G
2
N
G
2
N
G
2
N
G
2
N
G
2
N
G
2
N
G
2
1600 1601 1602 1603 1604 1605 1606
X
G
Video
NG
2
1480 1490 1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600 1610
Source: Joint ITU/IEEE Workshop on Ethernet - Emerging Applications and Technologies
Frank Effenberger (Geneva, Switzerland, 22 September 2012)
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Beyond XG-PON - TWDM-PON Architecture
Key Features
Builds on XG-PON1
Uses splitter based PON
40 to 80 Gbps total throughput
Co-existance with GPON networks
Challenges
Requires tuneable transmitters
and receivers at ONU
Allocation of the spectrum
Source: FSAN FTTH Council White Paper
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Co-existence of GPON and XG-PON or NG-PON2
XG-PON
Overlay of 2 additional
wavelengths (1270 nm US, 1577 nm
DS) for 10 Gbps services
G-PON and XG-PON on same fiber
Requires special in-service XGPON OPM (selective for up to 5
wavelengths)
NG-PON2 – TWDM-PON
„Co-existence elements“ - WDM
combiner/splitter
Need optical spectrum analyzers
for power measurement
(Source: White Paper – New FTTH-based Technologies and Applications)
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Future
Data-Tsunami:
Migration & upgrade to XG-PON, NG-PON2, CWDM-PON,…
TDM + xWDM = TWDM
Co-existence of different PON technologies and mixed topologies
(symmetric – asymmetric, point to point – point to multipoint, PON –
amplifiers, seeded lasers,…)
FTTx not only for homes but also for Mobility, Medical, Finance,
Smart Grid…
Increased demand for resilience, rogue ONU/OLT detection and
redundancy
Many responsibilities
Demarcation essential
Theoretical network layout vs. Reality!
High responsibility and challenge for T&M
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