This white paper explores Tier 2 optical time domain reflectometer (OTDR) testing and examines its relationship to Tier 1 testing and how inspection plays into both. It also defines Tier 2 testing and explains when it is needed, how it complements Tier 1 testing, and it addresses the OTDR complexity argument. Download White Paper.
The Rise of Tier 2 Testing (When Tier 1 Testing is not enough) – VIAVI Solutions – 2018
