Sítě FTTx

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  • Pavel Pospchal

    17.9.2014

    OPTOKON, a.s.

    OPTOKONceptTM

    FTTx st v roce 2014

  • Poadavky na konektivitu:

    Vysokorychlostn Internet, irokopsmov pstup, .

    Definice rzn v rznch zemch

    esk republika takov pipojen, kter neomezuje poadavky astnka:

    Poteby - Triple play sluby: data, hlas (VoIP), TV (video signal)

    dnes: 100 Mbps

    ztra: 1000 Mbps

    Optick vlkno ideln penosov medium pro Triple play, FTTH standard

    Architektura optick st:

    P2P (AON) astnk je pipojen ke svmu ppojnmu bodu pomoc FO

    PON (P2MP) passivn spliter, vce astnk sdli jedno vlnkno

    FTTX optick st

  • FTTX fiber to the X

    FTTC fiber to the curb

    FTTP fiber to the premises

    FTTB fiber to the building

    (business)

    FTTH fiber to the home

    - P2P (AON)

    - P2MP (PON)

    FTTX optick st

  • P2MP point to multipoint connection

    OLT optical line terminal

    ONT (U) optical network terminal

    (unit)

    shared bandwidth

    distance 10 20 km

    P2P point to point connection

    Ethernet device in the field

    dedicated, full bi-directional bandwidth

    distance up to 80 (120) km

    FTTH architektura optick st

  • Modelov een sdlit: 8 budov, 8 poschod se 4 byty:

    256 uivatel

    FTTH-AON:

    End user: 2 FO

    Floor cabinet: 6 FO

    Primary node: 48 FO

    CO (Distribution node): 384 FO

    FTTX modelov een

  • Modelov een sdlit: 8 budov, 8 poschod se 4 byty:

    256 uivatel

    FTTB:

    Primary node: 2 FO

    CO (Distribution node): 16 FO

    FTTX modelov een

  • Modelov een sdlit: 8 budov, 8 poschod se 4 byty:

    256 uivatel

    FTTH-PON:

    End user: 1 FO

    Floor cabinet (1x4): 1 FO

    Primary node (1x8): 1 FO

    CO (Distribution node): 8 FO

    FTTX modelov een

  • PON Network Architecture

    length of packet up to 1,5Kbytes

    Managing Downstream Traffic in an Ethernet PON:

    Downstream:

    Data at 1490 nm, (1550, 1510 nm)

    CATV at 1550 nm

    ONU accepts the packets that are intended for it and

    discards the packets for other ONUs.

  • PON Network Architecture Upstream: data at 1310 nm

    Problems: while one ONU talking the others lasers switched off (burst mode)

    Upstream traffic: time division multiplexing

    NEW DEVELOPED ADVANTAGES Auto-detect optical transceiver ( detection of speed and protocol )

    Butt set provisioning ( set up of the ID in ONU/T by OLT )

  • APON: Initial name for ATM based PON spec.

    designed by Full Service Access Network (FSAN) group

    BPON: Broadband PON standard specified in ITU G.983.1 thru G.893.7

    = APON renamed

    155 or 622 Mbps downstream, 155 Mbps upstream

    EPON: Ethernet based PON draft being designed by IEEE 802.3ah.

    1244 Mbps down and 1244 Mbps up

    GPON: Gigabit PON standard specified in ITU G.984.1 and G.984.2

    2488 Mbps down, 1244/2488 Mbps up

    Pt generace PON: 10 Gbps XGPON: GPON/EPON

    WDM-PON technology

    Typy PON st

  • IEEE 802.3ah-2004 for 1 Gbps

    Downstream 1.244 Gbps

    Upstream 1.244 Gbps

    IEEE 802.3av for 10 Gbps

    Downstream 10 Gbps

    Upstream 2.488 Gbps

    EPON assumes that data today starts and ends as Ethernet and

    therefore 802.3 frame format is appropriate. Used widely in the

    Enterprise and Asian ISP markets.

    IP data services

    VoIP

    IPTV Supports multicast to use less bandwidth

    GEPON

  • ITU Standard G.984

    Downstream 2.488 Gbps

    Upstream 1.244/2.488 Gbps

    ITU Standard G.987 for 10 Gbps

    Downstream 10 Gbps

    Upstream 2.488/10 Gbps

    Uses GPON Encapsulation Method (GEM), fragmented packets

    or ATM

    GPON in GEM mode can achieve ~ 95% bandwidth efficiency

    Provides native support for different services like:

    Provides ATM for Voice

    Ethernet for Data

    GPON

  • ITU Standard G.984 - security:

    G.984.3 defines two identification/activation mechanisms Method A: pre-provision of ONU/ONT serial number to an OLT

    Method B: the serial number is not known in advance and the OLT

    activates the ONT/ONU on the fly

    Two security mechanisms, both specified as optional: Authentication of the ONU/ONT by means of (PLOAM) password;

    Encryption of the downstream traffic only (from the CO to the customer

    side) by means of AES (128 bit)

    (AES - Advanced Encryption Standard)

    The upstream traffic is not considered at risk because the high directionality of

    the PON components (it is assumed that the traffic sent from one ONT to the

    OLT cannot be sniffed by other ONTs)

    GPON

  • Bandwidth in PON systems

  • A key component in next generation access

    WDM-PON

    The FSAN/ITU-T recommendation:

    XG-PON1 will be followed by NG-

    PON2.

    XG-PON1 is an up-grade to existing

    TDM-PON standards

    NG-PON2 standard is a new

    approach for which WDM-PON is a

    strong, leading candidate.

    Full Service Access Network - FSAN

  • WDM-PON

    AWG Arrayed Waveguide Grating

  • Pasivn vrstva:

    chrniky, kabely, konektory

    ODF Optical Distribution Frame

    stojanov systmy

    monti do stojan

    nstnn - vnitn

    - venkovn

    astnick krabiky

    splittery pasivn odbonice

    WDM (AWG) vlnov multiplexery

    FTTH vstavba optickch st

  • Aktivn vrstva:

    pepnae, penosov systmy

    GPON / GEPON system

    OLT Optical Line Terminal

    ONU(T) Optical Network Unit (Terminal)

    Transceivery

    EDFA zesilovae CATV combiner

    FTTH vstavba optickch st

  • Triple Play sluby:

    data 10/100Base-T(X)

    voice (VoIP) FXS - analog phone set

    FXO - PBX connection)

    DID (direct inward dialing)

    video - IP TV - CATV (analog, digital)

    (TV programs, Video on Demand, Security systems, ...)

    FTTH Triple Play sluby

  • P2P network topology - I

    Core Layer 3

    (Aggregation) SWITCH

    Acces Layer 2

    SWITCH

    SWITCH

    Central office

    CPE

    Bi-Di transceivers:

    1550 nm downstream

    1310 nm up stream

    FTH4-100M Web Smart FE OAM/IP Managed Converter with Cable Tray

  • P2P network topology - II

    Bi-Di transceivers:

    1550 nm downstream

    1310 nm up stream F

    RM

    -CH

    AS

    SIS

    Core Layer 3

    (Aggregation) SWITCH

    Acces Layer 2

    SWITCH

    SWITCH

    HAG

    HAG

    HAG

    Management

    APS

    FiberXport

    Data:

    100 Mbps

    Voice:

    FXS port

    CATV:

    TV signal

    CA

    TV

    Tra

    nsm

    itte

    r

    ED

    FA

    TV

    EDFA

    TVR

    TVR

    TVR E

    DF

    A

    Sp

    litte

    r

    Central office CPE

  • PON modelov een 512 uivatel

  • Distribution of CATV signal:

    PON technologie - CATV

    Core Layer 3

    (Aggregation)

    O

    N

    U

    O

    L

    T

    P

    O

    N

    S plitter

    1 x16

    FTTH

    FWDM

    filter

    CATV Headend

    4x

    data

    RF

    Data

    1490 down

    1310 up

    CATV

    1550 down

    Data

    1490 down

    1310 up

    CATV:

    1550 down

  • Modelov een 512 uivatel

    Data + CATV signl

  • LS-800 Light Source

    PM-800, PM-212 Power meter

    Small size, low weigth

    All CWDM wavelength spectrum

    CW, 270 Hz, 1, 2 kHz modulation

    AWD (Auto wavelength detection)

    memory, USB port for data upload

    SmartProtocol SW

    battery, inbuilt charger

    FTTH mic pstroje

  • Measures optical power MM and/or SM

    MM+SM measurement from one FO port (850, 1310, 1550 nm)

    Memory for up to 200 traces (file in Bellcore format)

    A stabilized light source

    Singlemode / Multimode

    MOT-700 Mini OTDR

  • Mini 6S Core Alignment Splicer

    Mini 4S 4 Motors Active Clad Alignment Splicer

    Mini 50GB High Precision Cleaver

    FTTH sveky optickch vlken

  • Kompletn een optickch st:

    nvrh, konzultace

    pprava projektu

    cenov nabdka

    dodvka pasivnch i aktivnch komponent

    zprovoznn st

    pejmkov men

    spoluprce bhem provozu

  • Dkuji za pozornost