- Network tester module
LGX optical modules enable testing fibers, that are bearing traffic with an OTDR by inserting an out-of-band wavelength. The OTDR signal is added to the data signal. At the other fiber extremity, a filter blocks the OTDR signal. When OTDR measurement range can cover more than one fiber span, a bypass can extend the OTDR signal to the adjacent span. With low insertion loss, a flat passband and exceptional reliability and environmental stability, the modules are well suited for in-service fiber test applications. They install fast, without tools, in any LGX-compatible shelf or fiber-distribution panel.