Testing Bidirectional Insertion Loss and Return Loss on a Simplex DUT

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Bidirectional testing is an effective way to test connector-level return loss (RL) and throughput insertion loss (IL) for a variety of different DUTs. In this video, our CTO Chris Heisler walks through the process of referencing and performing a bidi test on a simplex DUT using OPL-CLX. Learn how this new software suite enhances the test process by simplifying how the operator captures results and creates labels for the finished product.

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Optical Power Meter Selection Guideline

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When building a test system for your device under test (DUT), choosing the correct detector is of upmost importance. In this video, learn everything there is to know about the different detector and power meter options out there. OptoTest offers a wide range of Power Meter solutions, from handheld single detectors to 300+ channel custom systems. Explore the different factors to consider when choosing the right Optical Power Meter to best fit your needs.

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CW RL Testing vs. Pulsed (OTDR) RL Testing – OP925 vs. OP940

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With the introduction of the OP925 Continuous Wave RL and IL meter, you may be wondering what the difference is between this and the OP940. This video provides an overview of the different Return Loss test methods used by these systems: Continuous Wave Return Loss and Pulsed (OTDR) Return Loss. Explore the similarities and differences of these test methods and the systems that use them to help determine the solution that best fits your needs.

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Testing Insertion Loss & Return Loss with the OP925

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To test insertion loss and return loss with the OP925 first power the instrument on. You’ll need a reference cord with a connector that’s similar to your DUT, also a matching block to terminate the end of the DUT.

Initially, the instrument starts up in OPM mode. To do dual wavelength measurements is usually easier just to cycle over to the dual wavelength IL and what we’re going to do is we’re going to perform a reference, and right now the instrument is referenced for IL.

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Reference and Test Insertion Loss and Return Loss using the OP940-CSW and OPL-CLX

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We are going to run through a full reference and test sequence with the OP940-CSW and OPL-CLX.

We’re going to start by connecting up our reference cable, which historically with the rack mount 12 or 24 channel OP940 would require a fanout cable. But now with this in the compact size, we just have a straight MTP/MPO connector on the inside here and we’re going to mate a 12 fiber MPO to MPO cable straight to the front panel.

Lift the flap here and just connect that right up. And we’ll leave it there for now while we launch CLX.

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Bidirectional IL/RL Test on a Duplex-LC Cable

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The OP940 and OP721 form the ideal test system for multichannel bidirectional insertion loss and return loss testing. The increased demand for more efficient IL and RL testing on multifiber cables, such as duplex LCs, MTP cables, and MTP fanout cables has led to an increased interest in this type of measurement. Additionally, this type of test is ideal for cables that require a two or three cable reference method, such as harsh environment connectors like 38999 and other Neutrik’s OpticalCON. In this video, we demonstrate how to perform this test on a duplex LC cable in OPL-Max.

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