Only the loss of a connection can be measured – a mated pair of connectors. (It’s impossible to measure a single connector.) Therefore, to qualify the performance of a jumper, other cables must be used, and the quality of those cables will affect the measurement you get for your device under test (DUT).

We recommend you purchase good-quality jumpers from an established first-tier manufacturer. In addition to being the same size, launch jumpers should use the same fiber type. For Multi-Mode, use test jumpers built with single-mode connector hardware.


READ THE BLOG: How to Accurately Measure IL/RL


Additional resources from the FOC team include:



Have questions about this FOC Tip?

Contact FOC with questions at: (800) 473-4237 / 508-992-6464 or email: and we will respond ASAP. 







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