slide1 l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
GPON: The Standard for PON Deployment and Service Evolution PowerPoint Presentation
Download Presentation
GPON: The Standard for PON Deployment and Service Evolution

Loading in 2 Seconds...

play fullscreen
1 / 23

GPON: The Standard for PON Deployment and Service Evolution - PowerPoint PPT Presentation


  • 1433 Views
  • Uploaded on

GPON: The Standard for PON Deployment and Service Evolution Ron Hartkemeyer Director Support Services Optical Solutions About Optical Solutions Industry Leader More Than 203 Fiber Powered Communities More Than 55,000 Optical Network Terminals (ONTs) Deployed

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

GPON: The Standard for PON Deployment and Service Evolution


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1
GPON: The Standard for PON Deployment and Service Evolution

Ron Hartkemeyer

Director Support Services

Optical Solutions

slide2

About Optical Solutions

  • Industry Leader
    • More Than 203 Fiber Powered

Communities

    • More Than 55,000 Optical Network Terminals

(ONTs) Deployed

    • Shipping More Than 4,000 GPON ONTs Per Month
    • 1st ITU Compliant GPON Product (Shipping Since 2003)
    • 1st IPTV Over PON Deployment in Nation (IPTV Since 2002)
      • More Than 90% of the PON IPTV Installs in the World
    • Active Member and Editor of FSAN Standards Committee
    • One of Three Founders of FTTH Council and Presently on the Board of Directors
    • Significant Patent Portfolio in FTTP Technology
us optical fiber communities ftth council publication may 10 th 2005
US Optical Fiber CommunitiesFTTH Council Publication May 10th , 2005

OSI Deployed in 51% or

203 of 398 communities

us optical fiber communities excluding rboc deployments ftth council publication may 10 th 2005
US Optical Fiber Communities excluding RBOC deploymentsFTTH Council Publication May 10th , 2005

Excluding RBOC deployments OSI Deployed in 61% or 203 of 333 communities

standards based pon protocols
Standards Based PON Protocols
  • Standards Bodies That Have Specified PON Protocols
    • International Telecommunication Union (ITU-T)
    • Institute of Electrical & Electronics Engineers (IEEE)
  • Three Fully Ratified PON Protocol Standards Exist
    • ITU-T Ratified BPON(G.983) & GPON (G.984)
    • IEEE Ratified EPON (802.3ah)
    • Non Compliant PONs are Proprietary
major members of full service access network fsan
Major Members Of Full Service Access Network (FSAN)

FSAN Recommends Standards to the International Telecommunications Union (ITU)

fiberpath gpon network
FiberPath GPON Network

Optical Line

Terminals (ONT’s)

GPON = 25 dB/20km/12.4 Miles

drivers for gpon
Drivers for GPON
  • Correction of BPON Limitations
    • Higher Speeds
    • Scalable to still higher speeds with the on-going decreases in optics costs
  • Recognition of IP Networking
    • Evolution From ATM to Pure IP Transport
  • Platform for All Services Delivery
    • Video - IPTV or RF
    • Voice - TDM or VoIP
    • Data
  • Platform Designed for Interoperability and lower operations costs
    • Standards driven interoperability
    • No Active Powering Points in the access Network

(FSAN committee has been working on GPON since mid 2001)

gpon status and time line
GPON Status and Time Line
  • G.984.1 – Service Requirements
    • Transport speeds and feeds, tolerances and delays, etc
    • Ratified by ITU-T in 01/03
  • G.984.2 – PMD – Physical Media Dependent Layer
    • Link budgets by class, split ratios, etc
      • Class B ODN – 10dB min to 25 dB Max loss
    • Ratified by ITU-T on 01/03
  • G.984.3 – TC - Transmission Convergence Layer
    • Transport Protocol Layer
    • 1/04 : ITU-T Approved
  • G.984.4 – OMCI – ONT Management and Control Interface
    • This specification lays the groundwork for interoperability.
    • 1/05: ITU-T Approval (expected in Q4 2005)
gpon additions in work
GPON Additions in Work
  • IPTV over GPON
    • First Specification for standardizing IPTV service delivery mechanisms and requirements
  • TDM over a GEM only Transport
    • Establish QoS for TDM traffic in a GEM only Mode
fsan pon bit rates
FSAN PON bit rates

G.983 BPON framing

G.984 GPON framing

slide12

ITU-T G.984.2 Physical

Media Dependent Layer

  • 8.2.1 Digital Signal Nominal Bit Rate
    • Transmission Line Rate = Multiple of 8 kHz
    • Nominal Line Rates
      • Downstream = 1244.16 Mbit/s
      • Upstream = 622.08 Mbit/s
  • 8.2.2.1 Transmission Medium
    • ITU-T G.652 Single Mode Fiber
  • 8.2.5 Operating Wavelength
    • Downstream Wavelength on Single Fiber=1480–1500 nm (FP500 is 1490nm)
    • Upstream Wavelength = 1260 – 1360 nm (FP500 is 1310)
  • 8.2.7.1 Attenuation Range
    • CLASS B = 25 dB
  • Table 4-a, Item 7 Maximum Fiber Distance Between S/R & R/S Points
    • Maximum Fiber Distance Between OLT and ONU – 20km/12.4 miles
slide13

8.2.1 Digital Signal Nominal Bit Rate:

  • Transmission Line Rate = Multiple of 8 kHz
  • Nominal Line Rates Downstream/Upstream = 1244.16 Mbit/s / 622.08 Mbit/s

ITU-T G.984.2 Physical Media Dependent Layer

8.2.2.1 Transmission Medium:

  • ITU-T G.652 Single Mode Fibre

8.2.5 Operating Wavelength:

  • Downstream Wavelength Range on Single Fibre Systems = 1480 – 1500 nm (FP-500 = 1490 nm)
  • Upstream Wavelength Range = 1260 – 1360 nm (FP-500 = 1310 nm)

8.2.7.1 Attenuation Range:

  • CLASS B = 25 dBm

Table 4-a – Item #7 Maximum Fibre Distance Between S/R & R/S Points:

  • Maximum Fibre Distance Between OLT & ONU = 20 km/ 12.4 mi (60km Logical Reach)
slide14

ITU-T G.984.3 Transmission

Convergence Layer

  • 5.3 Multiplexing Architecture
    • Two Multiplexing Mechanisms: ATM and GEM (GPON Encapsulation Mode)
    • Frame can be Mix of ATM or GEM
    • GEM = 10% More Efficient than BPON in Carrying IP Traffic
    • GPON Does not Require 8b/10b Ethernet Encoding Requirement of EPON
    • GPON = 20% More Efficient than EPON in Carrying IP Traffic
  • 8.1 Downstream Frame Structure
    • 125 Micro-seconds in Length = 8 kHz = Clocking Implicit in Frame
forward looking gpon standards
Forward Looking GPON Standards
  • GPON Rated to 2.4 Gigabit Symmetrical
  • GPON Byte Burst Overhead Increases w/Upstream Speed
  • BPON Effectively Limited to 155 Mbps upstream
  • BPON Fixed 3 Byte Burst Overhead
  • Turn on times less than 50 ns are high cost

BPON

or

GPON

622

1.2

2.4

155

gpon voice migration of telephony networks
GPON Voice Migration ofTelephony Networks

GR-303

DS1’s

  • TDM/GR-303 Voice Network
    • DS1’s used for GR-303 Interface @ OLT
    • VoIP overlay with IAD (Integrated Access Device)
      • IAD is stand-a-lone (inside premises)
      • IAD has Ethernet and POTS interface

Ethernet

IAD

POTS

Ethernet

  • TDM/GR-303 with VoIP Voice Network
    • DS1’s used for GR-303 interface @ OLT
    • Voice Gateway used to convert calls to VoIP
    • OLT Ethernet interface used for VoIP
    • IAD function is performed by ONT

GR-303

DS1’s

Voice

Gateway

Ethernet

Ethernet

IAD POTS

Ethernet

  • VoIP Voice Network
    • Ethernet interface at OLT used for all voice services

Ethernet

Ethernet

IAD POTS

slide19

GPON Reach Advantage

over EFM

  • Shorter Link Budgets
    • Limited Design Options
    • More Actives In OSP
    • Increased Op Ex $
    • Less Reliable

GPON = 20km

EFM = 10km

GPON = 40 km REACH

EFM = 20km REACH

g 983 bpon vs g 984 gpon
G.983 (BPON) vs G.984 (GPON)
  • BPON supports only ATM cells
  • GPON supports both ATM and GEM
    • Generic Encapsulation Mode (GEM)
  • GPON GEM efficiency
    • Eliminated 8b/10b requirement
    • 20% more efficient than EPON in carrying IP
    • 5-10% more efficient then BPON
    • Long term benefits towards lower cost equipment
    • Support of packet fragmentation
  • Benefits:
    • Can choose solution that delivers lowest cost over time.
    • Clear migration path to an all IP network
pon standards summary
PON Standards - Summary
  • GPON (G.984) improvements over BPON (G.983)
    • Efficiency: dual mode support of ATM as well as Ethernet frames
    • Scalability: more economical means of achieving high speeds
    • Lower costs because of relax timing requirements and common optics with EPON
    • Supports TDM and Ethernet Interfaces at the OLT
  • GPON Values
    • Similar Cost points to BPON
    • Architecture/Platform that will migrate with the operator, without requiring forklift upgrades
    • Standards driven for interoperability
summary
Summary
  • PON Protocol Standards Matter
    • Reliability & Availability
    • Mass Adoption/ Lower Costs/ Greater Flexibility
  • ITU Is The Dominant Standard
    • GPON is the dominant PON protocol standard
      • SBC, BellSouth, Bell Canada, Verizon, International PTTs
      • Most Bandwidth = Most Revenue Potential
    • Flexible & Cost Effective Transition to All IP Network