G-PON , A New Passive Access Technology for
Railway and other Strategic Sectors
IRSTE & IRSE Convention ,27th 28th April 2012 , Manekshaw Centre, Delhi Cantonment, New
Delhi.
Agenda
Introduction About G-PON
 G-PON Elements and Technology
Overview
 G-PON for Railway Sector
 G-PON for Fiber to the Panchayat
 GPON for the Education Sector
 Conclusion
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© 2012
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About GPON
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Gigabit Passive Optical Network with 2.488 Gbps
downstream and 1.244Gbps Upstream
Passive Optical Power splitters used to share a single fiber
with 32/64/128 ONTs/ONU
Dominant technology for delivering last kms access over
fiber
International Standards Based Protocol ITU-T G.984.x and
G.988 specified protocol developed by FSAN (Full Service
Access Network) and interoperability by Broadband Forum
(BBF)
G-PON use has been extended beyond providing FTTx
Broadband Access to applications such as
2G/3G/LTE/WiMAX Mobile Backhaul (MBH) and Fiber to
the Desktop
G-PON Dual IPv4 and IPv6 Stack support defined in G.988
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Elements of a G-PON Network
Central Office
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Outside Plant
User
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GPON is designed for Multi-Play/Any-Play
High Bandwidth
Gigabit Ethernet transport
2.5 Gbit/s downstream
1.25 Gbit/s upstream
Simplified Services Bundling
Bandwidth shared by up to 128 customers per GPON port
High QoS
Carrier class Quality of Service (QoS)
Synchronous system enabling4G/ LTE Backhaul
Advanced OAM&P with OMCI for integral FCAPS
Next Generation
All-IP system ; Dual IPv4/IPv6 Stack
Passive Optical Network (PON)
No active elements in the field – No powering, No truck rolls
Outside Plant (OSP) lifetime > 50 yrs
Lower Operating Expenses (OPEX)
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G-PON has a Flexible Optical
Distribution Network (ODN) Architecture
City Hall
Data
OLT
SingleStage
Splitting
Hospitals
Government
Offices
Clinics
Public Schools
University/Colleges
Highrise
Apartments
Voice
CO/LE/PoP
Cascaded
Splitters
MDU
Video
Downtown
Office Buildings
Linear Bus
Small & Medium
Businesses
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Stores & Shops
Malls
Large Multi-tenant
Business
Large Single-tenant
Business
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G-PON supports cost-effective
Fibre Path Protection using 2xN
splitters
Active
Standby
Working
2xn Passive
Splitter
Tx
Rx
OLT
Redundant Port
& Fibre Path
Standby
Fiber to 60km
Tx
Rx
2xn Passive
Splitter
Fiber to 60km
ONTs
Ideal for dealing with Trunk/Feeder Paths in high-construction areas
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Service Delivery Network using G-PON
OLT
1x8
GPON A
STAR
Provider
Edge QoS
splitter
1x8
1x4
Single
Attachment
(OPTIONAL)
splitter
splitter
1x8
splitter
1x8
Core Network
splitter
Aggregation Network
OLT
MPLS
Router
QoS
Router
L2/L3 Switch
Dual
Attachment
GPON A
RING
(Type B
protection)
1x8
2x4
splitter
splitter
1x8
splitter
1x8
splitter
Single
Attachment w/
Link Aggregation
2G BSC
OLT
1x8
splitter
3G RMC
2G/3G Cellular
Network
GPON A
RING
(Type B
protection)
2x32
splitter
32, 64, and 128 Customers per G-PON ODN
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G-PON for Railway Sector
Broadband Railway Line (BRL)
Networks
Example – RailTel Corporation’s
Backbone DWDM Network
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RailTel Corporation of India Limited, a
Government of India undertaking under
the Ministry of Railways, has built a
state of the art backbone network of
SDH & DWDM:
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600 Cities
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3,400 towns and village stations
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40,000 RKM (Routed km)
Present DWDM Network using STM-16
(2.488Gbps) 10,500 RKM
31 Points-of-Presence (PoPs)
100G which can be augmented to
400/800G capacity
14,000 RKM planned in 2012 across
additional 44 cities to cover whole of
India
Network ready to deliver 10G
Source: “Building Futuristic Network for Indian Railways Signaling &
Administrative Application,
ANSHUL GUPTA, ED/CC. RailTel
ALOK AGINIHOTRI, Manager/Marketing, RailTel.
IRSTE Quarterly Journal January-March,2012
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G-PON’s possible role in RailTel
Corporation’s Proposed* Network
Architecture
Broadband
Access
Edge
Aggregation
Local
Access
PTN Service
Layer
DWDM
Transport Layer
Layers:
1. 1.OFC – Optical Fibre Communication .
Infrastructure
2. DWDM – Dense Division Multiplexing with
SNCP (Sub-Network Connection Protection )
and MS-Spring (Multiplex Section-Shared
Protection Ring) protection for Core transport
Layer
3. PTN – Packet Transport Network (MPLS –
Multiprotocol Label Switching) Core Service
Layer
4. Local Access Network
OFC Core
Layer
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G-PON Railway specific BRL
applications
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Railway Stations – e.g. Department and Inter-department Transparent
LAN Services, TVPN, Wi-Fi Hot spots, CCTV, Video Billboards for
remote ad placements, IPTV for News and Weather updates
Railway Signaling Gates - e.g. Sensor networking using IPv4/6,
CCTV
Railway Level Crossings - e.g. Sensor networking using IPv4/6, CCTV
Security and Safety – e.g. CCTV placement every 200 to 500m using
Linear bus ODN topology
Freight Corridor Monitoring – e.g. Intelligent Sensor networking using
IPv4/6 and a linear bus ODN topology
Rail Coach Factories – e.g. TLS connectivity to departments and
factory floor
Railway Colonies – e.g. Triple-play residential services
Railway Hospitals – e.g. Tele-medicine and Tele-presence
Railway Schools– e.g. Long Distance Learning (LDL) and Telepresence
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Services on Broadband Railway Line
(BRL) Networks for Multi-Play
High-speed Internet (Wired)
High-speed Internet (Wi-Fi)
High Speed Internet
Femtocell Access Point (FAP)
Voice Telephony (Basic)
Voice Telephony(Centrex)
Circuit Emulation (E1/T1)
RF Overlay
IPTV (Linear)
IPTV (VOD)
http://bigtrip.org/photos/2003-05-22_Copenhagen,_Denmark/Train_tracks.jpg
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Services on BRL Networks
for Multi-Play and Backhaul
High-speed Internet (Wired)
High-speed Internet (Wi-Fi)
High Speed Internet
Femtocell Access Point (FAP)
RF Overlay
Voice Telephony (Basic)
Voice Telephony(Centrex)
Circuit Emulation (E1/T1)
2G/3G/4G/LTE
Mobile Backhaul (MBH)
IPTV (Linear)
Video Studio Transmission
Link (STL) Backhaul
IPTV (VOD)
DSLAM/CMTS Backhaul
SDH/SONET Backhaul
http://bigtrip.org/photos/2003-05-22_Copenhagen,_Denmark/Train_tracks.jpg
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Services on BRL Networks for Multi-Play,
Backhaul and Valued Added Services (VAS)
High-speed Internet (Wired)
High-speed Internet (Wi-Fi)
High Speed Internet
Femtocell Access Point (FAP)
RF Overlay
Voice Telephony (Basic)
Voice Telephony(Centrex)
Circuit Emulation (E1/T1)
2G/3G/4G/LTE
Mobile Backhaul (MBH)
IPTV (Linear)
Video Studio Transmission
Link (STL) Backhaul
IPTV (VOD)
DSLAM/CMTS Backhaul
SDH/SONET Backhaul
http://bigtrip.org/photos/2003-05-22_Copenhagen,_Denmark/Train_tracks.jpg
Internet Leased
Line (ILL) Transparent
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Virtual
LAN Service (TLS)
Private
Networks
Video
Conferencing
TelePresence
Tele-Education
Tele-Medicine
BPO
(Business
E-governance
Process Outsourcing)
and more …..
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BRL Network
“Two-spoke” G-PON ODN Topology
OLT is the hub of the virtual wheel.
The trunk/feeder fibre is indicated
by the solid red lines, the spokes, of
which the fibre spurs off to the
Primary Fibre Concentration Point
(FCP).
ONT/ONUs grouped in clusters
consisting of one or more zones,
with each zone containing the
Secondary Fibre Concentration
Point (FCP).
“Two-spoke” a good candidate for using Linear Bus Splitter topology
© 2012
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BRL Network
“Four-spoke” G-PON ODN Topology
OLT is the hub of the virtual wheel.
The trunk/feeder fibre is indicated
by the solid red lines, the spokes, of
which the fibre spurs off to the
Primary Fibre Concentration Point
(FCP).
© 2012
ONT/ONUs grouped in clusters
consisting of one or more zones,
with each zone containing the
Secondary Fibre Concentration
Point (FCP).
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G-PON for Fiber to the Panchayat
National Telecom Policy-2011 (NTP2011)
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Currently: 12.35M broadband
connections
Targets:
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175M by 2017
600M by 2020
Fiber-to-the-Panchayat Program
to cover 600,000 villages
Promoting Local R&D,
Manufacturing
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G-PON for Fiber-to-the-Panchayat in
India (Rural Broadband)
 250,000 Panchayats and 600,000
villages to be connected by
GPON
 Nation’s first Broadband center
in Sarwan was inaugurated by
MP Hon. Rahul Gandhi and
Chairman of Innovation Council,
Sam Pitroda
 Partially funded by Universal
Services Obligations (USO) fund
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G-PON Broadband to the Panchayat
Panchayat 1
ONT
OLT
Splitter
...
ONT w/RF Video
AOLT-4000
Panchayat 2
...
Panchayat n
ONT w/Wi-Fi
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GPON Setup for
Sarwan Panchayat, Rae Bareli
MPLS
Network
OCLAN Switch
Raebareli Exchg
Smart Digi Vision
IPTV Network
TP Nagar T2
GbE
HSI
GbE
IPTV
nxGbE or
10GbE
CTO T1
AOLT-4000 at
Raebareli Exchg
nx1GbE
Allahabad Ring 1
10GbE RPR Ring
nx1GbE
Eth
Fursatgunj
Exchg
Allapur T2
Ethernet
BNG
PE Router
Ahmadabad
Cisco 12000 series at
Bangalore NOC
Munfordgunj T2
V5.2 GW at
Raebareli Exchg
V5.2 E1s
STM-1 / 4 / 16
PSTN Network
Alphion Proprietary and Confidential
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ESS Switch at
Raebareli Exchg
Sarwan Panchayat
G-PON for Education Sector
Campus Networks (IIT KGP)
G-PON for IIT KGP
Campus Deployment
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All campus locations covering 30,000 people and
over 2,000 acres
Triple/Quadruple play Connectivity to Hostels and
Various Departments / Residential Quarters
Used for delivering IPTV, VoD, Internet, Voice,
Courseware, E-learning
Connected to National Knowledge Network
Inaugurated by Prime Minister of India
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IIT KGP Network with GPON
Internet User
BSNL STM
Mux
Internet/PSTN
VoIP
AONT 100
at Hostel
CATV
Router
AOLT-4000
GPON OLT
Wireless LAN Controller
Wi-Fi
Server
1490nm
CATV feed from
MSO/LCO
1310nm
Co-axial cable
2 x 32
Splitter
1550nm
Optical Transmitter
at OAT
© 2012
1490/1550nm
Alphion EDFA with
WDM coupler
1310nm
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Conclusion
Conclusion
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G-PON’s passive, built-in traffic aggregation, seamless
integration into existing fibre plants, huge user capacity,
service oriented FCAPS, Advanced Security support, High
Availability options such a path protection, and flexible
ODN topology such a linear add/drop bus, makes it a
perfect match for building Optical Broadband Railway Line
(BRL) Access Networks
As Railway’s deploy G-PON for the Access and Edge
Aggregation portion of their Optical Fibre communication
(OFC) networks, it is expected that as of yet un-envisioned
Railway-specific new revenue generating services and
applications will be realizable due to G-PON’s any-play
service architecture.
© 2012
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Alphion G-PON Solution Offering
AOLT-4000N
AOLT-4000
GPON ANSI OLT
GPON ETSI OLT
AOLT-4200/4200H
GPON 1RU/2RU 19” 8-port
OLT
Products:
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Optical Line Terminal platform:
 AOLT-4000 (9RU ETSI 600mm)
 AOLT-4000N (11RU ANSI 19”)
 AOLT-4200 (1RU ANSI 19”)
Optical Network Terminals
Optical passives:
 ASPL (passive splitters)
System Add-ons:
 PON.ext™
AONT-100C
Compact SFU
AONT-100
AONT-1010
AONT-1601
Single GE Port ONT for Residential Wi-Fi
SFU/SBU
Gateway SFU ONT
RF Overlay SFU ONT
AONT-2301
E1/T1 SBU ONT
AONT-1440 AONT-1240/200
SFU/MDU ONT
SFU/SBU ONT
AONT-100
Outdoor
ASPL
Optical Splitter
Module
© 2012
AONT-3030
AONT-3330
Ethernet MDU ONT
Ethernet +POTS MDU ONT
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Thank You
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