Skip to main content

Site Acceptance Test 

Site Acceptance Test SAT, Tier1 & Tire2 Certification, Handover, and Troubleshooting

SAT verifies that the installed fiber optic system meets the specified requirements and is functioning correctly at the customer’s site. SAT is performed after a Factory Acceptance Test (FAT) (if applicable) and before the system is formally handed over to the client.

Key Activities

Verifying that drawings, documents, and other deliverables are complete and accurate.

Confirming that the system is installed according to the design and specifications.

Performing various tests to validate functionality, performance, and safety.

Documenting all test results and findings.

Fiber Optic Certification

Tier 1

Measures overall insertion loss (attenuation), length, and polarity of the fiber link.

  • This is typically done using an optical loss test set (OLTS).
  • Tier 1 testing ensures that the fiber meets basic performance standards.

Tier 2

Provides a more in-depth analysis of the fiber link, using an optical time-domain reflectometer (OTDR).

  • OTDR testing helps identify the location and severity of issues like connectors, splices, or bends.
  • Tier 2 testing is used to pinpoint the root cause of problems and determine the loss associated with each issue.
  • Tier 2 testing is complementary to Tier 1 and provides a more comprehensive view of the fiber link.

Handover Services

Once the SAT and both Tier 1 and Tier 2 certifications are successfully completed, a formal handover process takes place.

A handover document is signed by both parties to confirm that the system has been accepted and that all required documentation has been provided.

  • Identifying Issues: If issues are found during testing or after the system is in operation, troubleshooting is necessary.
  • Common Problems: High attenuation, connector issues, splices, bends, and faulty components can all cause problems.
  • Visual Inspection: Check connectors for cleanliness and damage.
  • Testing: Use appropriate test equipment (OLTS, OTDR, etc.) to pinpoint the source of the problem.
  • Repair/Replacement: Clean or replace faulty connectors or other components as needed.
  • Documentation: Document all troubleshooting steps and resolutions.