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Course Outline

Introduction to PON and Fiber Access Networks

  • What is GPON and how it fits in FTTH/FTTx access networks
  • GPON vs EPON vs XGS-PON: standards, bandwidth, and use cases
  • Key benefits: high bandwidth, long reach, passive infrastructure, and energy efficiency
  • Evolution roadmap: from GPON (G.984) to XGS-PON (G.9807.1), 25G PON, and 50G PON

GPON Architecture and Components

  • OLT (Optical Line Terminal): role, placement, shelf architecture, and uplink options
  • ONT/ONU (Optical Network Terminal/Unit): types, interfaces, and residential vs business models
  • ODN (Optical Distribution Network): fibers, splitters (PLC), FDH, closures, and connectors
  • Passive components: SC/APC, LC connectors, splice trays, and cable management

Optical Principles and Link Budget

  • Wavelength plans: downstream 1490 nm and upstream 1310 nm
  • Optical loss, attenuation, and the power budget calculation for a PON link
  • Split ratio selection and its impact on reach and loss
  • Practical exercise: calculate a link budget for a real-world deployment scenario

Network Design and Planning

  • PON topology: centralized vs cascaded splitting strategies
  • Fiber capacity planning and route design for urban and rural deployments
  • Coexistence of GPON and XGS-PON via WDM1r for smooth upgrades
  • Practical exercise: design a simple residential PON with a BOM and link budget

Installation and Physical Deployment

  • Fiber safety: laser handling, eye protection, and electrical safety near power lines
  • Fiber handling: stripping, cleaving, cleaning, and inspection with a microscope
  • Fusion splicing and mechanical connectorization best practices
  • OLT rack installation and ONT premises placement guidelines
  • Real-world scenario: deploy a distribution point to multiple subscriber homes

Basic Configuration (Vendor-Neutral Concepts)

  • OLT provisioning: PON ports, GEM ports, T-CONTs, and service profiles
  • VLAN tagging, bandwidth profiles, and QoS for triple-play services
  • ONT authentication methods: serial number, LOID, and password registration
  • ONT state machine: from initial discovery (O1) to operation (O5)
  • Practical exercise: configure voice, video, and data services on a simulator

Operation and Monitoring

  • FCAPS model applied to GPON networks
  • Key performance indicators: Rx/Tx optical power levels, optical budget margin, and BER
  • Using generic EMS/NMS and OMCI for status, alarms, and remote management
  • Common alarms: LOS, LOFi, DGi, TF, and their physical and logical causes

Troubleshooting Common Issues

  • Systematic fault isolation: subscriber side to OLT side divide-and-conquer approach
  • ONT offline: authentication failures, OMCI timeouts, and rogue ONT detection
  • Low optical power, macrobends, and dirty connector diagnosis using OTDR and VFL
  • Practical exercise: diagnose a failing subscriber circuit from alarm data and OTDR traces

Modern PON Standards and Future Evolution

  • XGS-PON (G.9807.1 Amendment 1, May 2025): symmetric 10G for modern demands
  • 25G PON and 50G PON: next-generation frontiers for 5G transport and enterprise
  • Network slicing and intelligent ODN trends for 2026 and beyond
  • When and how to migrate from GPON to XGS-PON while protecting existing investment

Best Practices, Safety, and Documentation

  • Fiber safety and Class 3B laser handling procedures
  • Documentation standards: labeling, cable records, as-built drawings, and asset databases
  • Preventive maintenance: cleaning, inspection schedules, and closure management

Certification Preparation and Review

  • Overview of certifications: FOA CFOT/CFOS, BICSI INSTF/TECH, and vendor tracks
  • Relevant ITU-T standards: G.984 series, G.9807.1, and G.988 (OMCI)
  • Exam topic mapping, key takeaways, and next steps for specialization
  • Final practical assessment and Q&A

Requirements

  • Basic understanding of telecommunications and IP networking concepts
  • No prior fiber optic or GPON experience required

Audience

  • Telecommunications technicians and engineers
  • Field deployment and installation staff
  • Network operations center personnel beginning work with GPON infrastructure
 21 Hours

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  • Customized Content: We adapt the syllabus and practical exercises to the real goals and needs of your project.
  • Flexible Schedule: Dates and times adapted to your team's agenda.
  • Format: Online (live), In-company (at your offices), or Hybrid.
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Price per private group, online live training, starting from 4800 € + VAT*

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