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 © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 2 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 © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 3 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 © 2014 JDS Uniphase Corporation Dirty Connection Return Loss 32.5 dB Insertion Loss 4.87 dB | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 4 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 © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 5 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 © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 6 PON Evolution Evolution of Optical Access Standards Source: FSAN FTTH Council White Paper © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 7 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 © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 8 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 © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 9 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 10 © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 10 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 © 2014 JDS Uniphase Corporation 1580 | nm JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 11 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) © 2014 JDS Uniphase Corporation | 12 JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 12 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 © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 13 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) © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 14 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 © 2014 JDS Uniphase Corporation | JDSU CONFIDENTIAL AND PROPRIETARY INFORMATION 15
© Copyright 2024 ExpyDoc