FTTH Networks

Wolfgang Fischer

Chairman Deployment and Operations CommitteeFTTH Council Europe

Focus FTTH CouncilFocus FTTH Council

Overview topology and technology

POP

DSLAM

MSAN

MSAN

MSAN

DSLAM

ADSL2+

VDSL2

MDU any

ONTFTTH

FTTB

FTTC

FTTCO

< 1 Gbit/s

< 1 Gbit/s

< 50 Mbit/s

< 16 Mbit/s

Fibre

Fibre

Fibre

~ 100 m

~ 400 m

~ 3…5 km

ODN Building Home Desk

Overview topology and technology

Technology

Topology

Ethernet TDM‐PON WDM PON

P2P

P2MP

Ethernet P2PEthernet P2P PON P2PPON P2P N.A.N.A.

Active EthernetActive 

Ethernet PON P2MPPON P2MP WDM PONWDM PON

SharedSharedDedicatedDedicated

Direct Fibre – Point-to-Point

• Range 10km standard; with proprietary optics further• Independent of transmission protocols• Introduction of new transmission technologies according to technical evolution

Ethernet Switch

Ethernet TDM‐PON

WDM‐PON

Ethernet P2P

Ethernet P2PP2P

P2MP

Individual fibre connection per customer

Active Passive

Active Ethernet

Ethernet Switch

Ethernet TDM‐PON

WDM‐PON

Ethernet P2P

Ethernet P2P

Active EthernetActive Ethernet

P2P

P2MP

Individual fibre connection per customer

Individual fibre connection per building

Active Passive

Passive Optical Network (TDM PON)

Optical splitter in OSP

1 2 3

PON OLT1 22 33

11 2 33

11 22 3

2.5G DS / 1.25G US

• Range approx. 20 km• Passive distribution network, time division multiplex• Video distribution downstream on dedicated wavelength

Ethernet TDM‐PON

WDM‐PON

PON P2PPON P2P

PON P2MPPON P2MP

P2P

P2MP

Splitter in POP/office

Active Passive

Optical splitterin OSP

1 2 3

PON OLT1 22 33

11 2 33

11 22 3

2.5G DS / 1.25G US

• Range approx. 20 km• Passive distribution network, time division multiplex• Video distribution downstream on dedicated wavelength

Ethernet TDM‐PON

WDM‐PON

PON P2MPPON P2MP

P2P

P2MP

PON P2PPON P2P

Optical splitterin building

Active Passive

Passive Optical Network (TDM PON)

Passive Optical Network (WDM PON)

Optical filter

Wavelengths

• Range approx. 20 km• Passive distribution network, wavelength division multiplex (WDM)• Symmetrical bandwidth• Logical point‐to‐point connections (dedicated wavelengths per subscriber)

Ethernet TDM PON

WDM PON

WDM PONWDM PON

P2P

P2MP

Active Passive

Central office / POPActive technology

Image source: Internet

ODNPassive technology (depending on technology also active)

Image source: Internet

Building connectionFTTB in-building cabling – available copper cables

Compactterminationbox

MDU

VDSLmodem

VDSLmodem

VDSLmodem

VDSLmodem

VDSLmodem

VDSLmodem

VDSLmodem

VDSLmodem

VDSLmodem

Existing or newcopper cables

Drop 2’F

Standard duct cable, central tube design

Patch cord

ONT (MDU) including splice tray

CTBMDU(future)

Source: NSN

With new Cat‐6 cable also native Gigabit Ethernetcan be used in building

Building connectionFTTH in-building cabling – MDUs – PON example

Source: NSN

No splitter for Ethernet P2P

Download the FTTH handbook

http://www.ftthcouncil.eu/EN/home/form-handbook

Thank you for your attention!

www.ftthcouncil.eu