GPON Presentation

PRESENTATION ON GPON TECHNOLOGY

BY:MICHAEL KWAKU ADONGO

(MWX53583)

DATE: 11/04/2023

BY: Michael Kwaku Adongo 2

SELF - INTRODUCTION

Name: MICHAEL KWAKU ADONGOHuawei ID: MWX53583 Enrollment Date: 2011-08-01Mentor: DAVID EYISONDept. Manager: YANGSHENGDONGQualification:

BSc. INFORMATION TECHNOLOGY


CONTENT

• PON Introduction• GPON Technology Fundamentals• GPON Planning Basic guidelines• GPON Network Element Introduction• GPON NEs Installation& commission.• GPON NE’s basic configuration• ODN Introduction


PON Introduction• What is PON?

Source: http://en.wikipedia.org/wiki/File:PON_vs_AON.png


PON Introduction• Passive Optical Network (PON) is a point-to-multi

point fibre to the premise network architecture where unpowered splitters are used to enable a single fibre to serve multiple premises.

• It consists of an OLT that is usually located in the service provider’s central office and a number of ONUs located near the end users.

• It is a form of fibre-optic access network and reduces the amount of fibre and central office equipments as compared to the point-to-point network architecture.


GPON Technology Fundamentals


GPON Technology Fundamentals

• Gigabit-capable Passive Optical Network (GPON) is a PON which achieves higher bandwidth and higher efficiency using larger, variable-length packets. E.g. dynamic bandwidth allocation(DBA).

• GPON offers efficient packaging of user traffic, with frame segmentation allowing higher quality of service for delay-sensitive voice and video communications traffic.


GPON Key Features – Multi-plexing :

• The GPON system uses the WDM technology to implement the bi-directional transmission over a single fibre (a forced transmission mode).

• Over a single optical fibre, to separate the Tx and Rx signals of multiple subscribers, the GPON system uses the following two multiplexing technologies:– The downstream data streams use the broadcast

technology.– The upstream data streams use the TDMA technology.

1490 nm

1310 nm


GPON Key Features – Downstream principle :

• Broadcast mode: The length of any downstream GPON frame is fixed to 125 us and the frames are broad cast to all the ONUs. In this way, all the ONUs can receive the same data. The ONUs differentiate the frames by ONU ID and filters the frames to receive its own data.


GPON Key Features • Upstream principle :

• The upstream GPON data is transmitted in the TDMA mode. The uplink is divided into different time slots, which are allocated to each ONU according to the upstream bandwidth map field in the downstream frames. Hence, all ONUs can transmit their own data based on a specific sequence and no conflict for competing timeslots occurs.


Why GPON?• Key Advantages:

– Longer transmission distance: Transmission over optical fibres reaches the maximum of 20 km transmission distance.

– Higher bandwidth: downstream of 2.5 Gbit/s and upstream of 1.25 Gbit/s for each subscriber

– Optical split feature: The single optical fibre from the CO is split to multiple drop optical fibres to save the resources.

• Others:– GPON supports the triple play service. It provides full-service

solution to solve the bandwidth bottleneck of twisted pair access, and to meet the requirement for high-bandwidth services, such as high definition TV and live show. GPON is the best choice for the triple play service.

– Preferred by global big carriers


GPON Planning Basic guidelines• Bandwidth categorization: Where are the subscribers located and

which bandwidth do they need?• Duct network rollout: Based on detailed geographical information,

which existing ducts can be re-used and where should new ducts be built?

• Area definition: Which distribution and access areas have to be defined?

• Logical network structure: In which buildings should the OLTs and ONTs be located and which logical distribution and aggregation structure can be used between OLTs and ONTs? Which cascaded bandwidth allocation is applied?

• Cable network rollout: Which physical drop, distribution and feeder cable structure should be used? Where are the locations to splice fibres or to split the lightpath?

• Capacity and cost calculation: Which capacities are required for all network elements? How much does it cost?


GPON Network Element Introduction• Optical Line Terminal (OLT)

• The SmartAX MA5600T(OLT) can provide integrated data, voice, and video services with a large capacity, high rate, and high bandwidth. The MA5600T supports the following functions: – The MA5600T can support the integrated GPON/P2P/xDSL access services. – As the optical line terminal in the GPON system, the MA5600T works with

the optical network units (ONUs) or the optical network terminals (ONTs). – The MA5600T meets the networking requirements for fibre to the home

(FTTH), fibre to the building (FTTB) and base station transmission.– The MA5600T supports broadband access services such as P2P FE optical

access service and the Ethernet subtending. The MA5600T can work with ONUs/ONTs to provide the P2P FTTH access for the subscribers.

• Market position of the MA5600T:– The MA5600T supports the access with high bandwidth and long distance to

meet the requirements for fibre access on a large scale. – The MA5600T provides the voice, data, and video services over a single

optical fibre to meet the customized requirements.


GPON Network Element Introduction• Optical Line Terminal (OLT) Boards and examples

– Control board: For system control and communication• SCUN• SCUB

– Service board: Provides services to the ONTs• GPBD

– Uplink interface board: For connection between OLT and uplink• GICF• X2CS• TOPA

– Power interface board: Supplies dual(active and standby) power to the OLT• PRTE


GPON Network Element Introduction• Optical Line Terminal (OLT) Boards


GPON Network Element Introduction• Position of the SMARTAX MA5600T (OLT) in the network


GPON Network Element Introduction• Optical Network Terminal (ONT)– The SmartAX MA5612 is an industry-leading multi-

dwelling unit (MDU) that provides multiple high-speed services for residential and enterprise users. It can be flexibly configured on a passive optical network (PON) or a network deployed with traditional category-5 cables, depending on each customer's capacity requirements.

– The MA5612 supports TDM E1 and PRI ports to ensure seamless transfer of traditional PBX voice service and TDM leased line service to an IP network.


Optical Network Terminal (ONT)

SMARTAX MA5612


GPON Network Element Introduction• Position of Optical Network Terminal(ONT) in

the network


GPON NEs Installation& commission• Optical Line Terminal (OLT) – Mount OLT: 600mm (W) x 300mm (D) x 2200mm (H)– Connect Power:• 63Amps for active• 63Amps for backup • Grounding bar

– Change System Name, Date and Check software version– Install and confirm boards.– Run patch cords :• Patch from uplink board (e.g. GICF) to MPLS• Patch from TOPA to SDH (e.g OSN 3500)• Patch from service board (eg.GPBD) to ODF or Splitter for ONTs


GPON NEs Installation& commission

• SMARTAX MA5612– Mount CPE (ONT) in Advanced Power Module (APM), cabinet or

rack. It has the following dimensions : (L)442mm, (W) 245mm , (H) 43.6mm .

– Connect power to breaker on 4Amps or 6Amps space (6Amps is recommended).

– Connect grounding cable from CPE to grounding bar.

– Install SFPs and boards e.g.. E1/T1 board.

– Patch uplink port 0/0/0 or 0/0/1 to specified core on ODF.


GPON NE’s basic configuration

• Optical Line Terminal – Create VLANs– Create DBA profiles– Create the ONT-Line profile for ONTs– Create Traffic containers– Add Gems– Map the Gems to the VLANs– Add ONTs using serial number and password

authentication.– Create the service ports


GPON NE’s basic configuration• Sample configuration script for Optical Line

Terminal (OLT)

OLT Configuration



• SMARTAX MA5612– Configure the System Name, Date and check

software version– Create VLANs and port them to uplink port.– Configure QoS parameters and if necessary, create

ACL rules.– Create service ports– Configure SNMP parameters for communication

with NMS.



• SMARTAX MA5612

CPE Configuration


Optical Distribution Network (ODN)• Optical Distribution Frame

– An optical distribution frame (ODF) is primarily used to connect and schedule optical fibres and optical cables. It is applicable to fibre intersections between an optical transmission network and optical transmission devices as well as between optical cables in an access networks.


Optical Distribution Network (ODN)

• Optical Splitter– An optical splitter is a passive optical fibre tributary device

that connects an optical line terminal to an optical network unit. It can transmit packets using time division multiplexing (TDM) in the downlink and gather packets using the time division multiplexing access (TDMA) protocol in the uplink.

– With the split ratio ranging from 1:2 to 2:64, the optical splitter series can be installed in a connecting box, splice box, or optical division box for fibre splitting, while the clearly-labelled optical route identifiers facilitate easy maintenance.


Optical Distribution Network (ODN)

• Optical Splitter


THANK YOU!

GPON Presentation

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