High Performance OTDR APL-2+AOR502T2B test 1x4 and 1x2 optical splitter link, using 100ns pulse width, at 1310nm, with very small noise, ~0.02dB.

High Performance OTDR APL-2+AOR502T2B test 1x4 and 1x2 optical splitter link, using 100ns pulse width, at 1625nm, with very small noise, ~0.02dB.

The Need for Dynamic Range in OTDR’s

The required Signal/Noise Ratio (SNR) to the total link loss determines the dynamic range (SNR=1) required.

NOTE the dynamic range varies with the pulse width.

OTDR Index of Refraction (IOR) settings

Telstra: 1.4682

NBN: 1310nm / 1.4672, 1625nm / 1.4683

TPG: 1310nm / 1.4677, 1550nm / 1.4682