Application Note 117 feature image

AN-117 Measuring Insertion Loss and Return Loss of Hybrid Cables in OPL-MAX

AN-117 Measuring Insertion Loss and Return Loss of Hybrid Cables in OPL-MAX Overview Obtaining connector-level insertion loss (IL) and return loss (RL) for hybrid cables is complicated by the different connector types on either end of the cable. Hybrid cables cannot simply be flipped to test the reverse direction when the reference and device under […]

AN141 feature image

AN-141 Bidirectional Multifiber Insertion and Return Loss Testing Using OP940 and OP721

AN-141 Bidirectional Multifiber Insertion and Return Loss Testing Using OP940 and OP721 Overview With 100G Ethernet and beyond quickly becoming the standard for the fiber optics communication industry, many cable manufacturers want to be able to test multifiber cables with relative speed and ease. Using an OP940 and OP721 with OPL-MAX, an operator can test […]

Application Note AN-116 feature image

AN-116 Performing ILRL Measurements Using a Single-Channel OP940

AN-116 Performing Insertion Loss and Return Loss Measurements Using a Single-Channel OP940 Overview OptoTest’s OP940 allows operators to test Insertion Loss and Return Loss of fiber optic cables accurately and efficiently. Once Insertion Loss and Return Loss references are completed, the unit will automatically update test results on the screen in real-time. Performing a Reference […]

Application Note 111 feature image

AN-111 Measuring Insertion Loss and Return Loss on Hybrid Cables

AN-111 Measuring IL/RL on Hybrid Cables Overview Testing simplex cables with unmatched connector types poses difficulties because the cable cannot simply be turned around to test the reverse direction. While hybrid bulkheads (SC-FC, ST-FC, etc.) are one option that can solve the problem with only minor issues, in some circumstances hybrid bulkheads will not provide […]

OptoTestAN137

AN-137 Preventing Damage to Optical Connectors

AN-137 Preventing Damage to Optical Connectors Effects of Damaged Front Panels Maintaining your equipment’s interface & connectors is absolutely critical to achieving quality results. Damaged instrumentation interfaces and reference cables can add loss and reflections as well as reduce stability, making it difficult to take accurate measurements. In addition to adhering to strict policies regarding cleaning […]

OptoTestAN112

AN-112 Testing Insertion Loss and Return Loss on Ribbon Fiber Fanouts with OPL-MAX

AN-112 Testing Insertion Loss and Return Loss on Ribbon Fiber Fanouts with OPL-MAX Overview Measuring Insertion Loss and Return Loss on Ribbon Fiber Fanouts, like the MTP® to LC cable shown in figure 1 below, can be a streamlined process when using the right equipment and automation software. For the methods described in this Application Note, […]