The Optical Networks solution encompasses the design, dimensioning, deployment, and validation of fiber optic-based communication infrastructures intended for data transmission in corporate, industrial, and critical infrastructure environments.

The optical network is treated as a high-capacity strategic subsystem, required to ensure performance compatible with bandwidth requirements, low latency, immunity to electromagnetic interference, and operational stability throughout the project’s lifecycle.

A3A Engenharia de Sistemas structures each solution based on formal technical premises, operational criticality analysis, optical loss modeling (link budget), and the definition of measurable performance criteria, ensuring technical traceability and compliance with applicable standards.

Scope of Work

Within the Optical Networks solution, A3A Engenharia de Sistemas can operate in the following technical areas:

Planning and Engineering

  • Technical and economic feasibility studies
  • Development of Basic Design and Detailed Engineering
  • Definition of optical network architecture (point-to-point, ring, star, PON)
  • Sizing of corporate or industrial optical backbone
  • Structuring of ODN (Optical Distribution Network)
  • Attenuation modeling, connector losses, and optical splitting
  • Definition of splitting topologies in accordance with passive optical networks NBR_16869-5
  • Sizing of single-mode and multimode fibers according to application
  • Consolidation of technical material lists (B.O.M.)
  • Multidisciplinary coordination (civil, electrical, structural, and IT)

Infrastructure and Implementation

  • Installation of indoor and outdoor optical cables
  • Deployment of self-supporting aerial networks in accordance with technical specifications NBR_15330
  • Underground and conduit infrastructure deployment
  • Assembly of optical distribution frames (ODF) and splice enclosures
  • Execution of optical splicing and technical fiber management
  • Application of minimum bend radius and mechanical tension criteria
  • Technical supervision of deployment and quality control

Testing, Certification, and Validation

  • Attenuation testing using light source and power meter
  • OTDR testing for link characterization and optical events NBR_16869-5
  • Return loss and reflectance measurement
  • Technical handling of non-conforming events
  • Consolidation of technical certification reports
  • Delivery of final as-built technical documentation

Modernization and Expansion

  • Expansion of existing optical network
  • Implementation of ODN redundancy
  • Technology upgrade for higher transmission rates
  • Topology redesign in accordance with operational growth

Applications

The Optical Networks solution applies to:

  • High-capacity corporate backbones
  • Inter-building interconnection (campus networks)
  • Industrial plants and automation environments
  • Critical infrastructure and utilities
  • Passive optical networks (PON / PO-LAN)
  • Long-distance interconnections and external links
  • Mission-critical and high-availability environments

In all contexts, the infrastructure is sized to support performance, operational continuity, and technological scalability requirements compatible with high-traffic-density applications and service convergence.

Standards and Compliance

The solution is structured in accordance with applicable technical standards, including, where relevant:

  • ABNT NBR 16869-5 – Passive Optical Networks NBR_16869-5
  • ABNT NBR 15330 – Self-supporting aerial optical cables
  • ISO/IEC 11801
  • ANSI/TIA-568 (optical components)
  • Technical guidelines from approved manufacturers

Compliance with standards ensures optical performance predictability, mechanical integrity of the infrastructure, eligibility for manufacturer certifications, and mitigation of technical risks during deployment and operation.