Both should show a loss, but connectors and mechanical splices will also show a reflective peak. Typical splice loss values (the measure of loss in optical power across the splice point) are usually lower for fusion splices (typically less than 0. The primary contributors to measured splice loss are fiber material and design factors that. At TREND Networks, we are frequently asked how much loss is allowed when conducting testing on fibre optic cabling. Unfortunately, it is not a simple answer and depends on several factors. So how do you determine acceptable loss? When testing fibre optic cabling, determining acceptable loss is. Fusion splicing is a technique to join two fibers ends. A cable section-containing splices are normally shown as. To be able to judge whether a fiber optic cable plant is good, one does a insertion loss test with a light source and power meter and compares that to an estimate of what is a reasonable loss for that cable plant. The OTDR trace tells a story about each fiber it tests.
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