However, sometimes your splicing tools may not be cutting it, either because they are worn out, damaged, or incompatible with the type of fiber you are working with. In this article, you will learn what to do if you encounter this problem and how to avoid it in the future. Executive Summary: A fiber optic pigtail is one of the most commonly specified yet least understood components in structured cabling. Get the wrong connector type, the wrong polish, or skip proper fusion splicing technique—and you're looking at elevated signal loss, increased back reflection, and a. A fiber optic pigtail is a short length of optical fiber —typically 0. 5m to 2m—that has a factory-terminated connector on one end and bare fiber on the other end. The advantage of this approach lies in the ease of testing: installers can test the whole fiber patch cord before severing it, ensuring. We have multiple location that we need to to fiber termination and the contractor that's is doing the fiber says that the fusion splicer machine give an error when using the pigtail we are supplying but he doesn't know why. Pigtails and jumpers are very similar in structure, Simply put, the jumper is cut from the middle to form two pigtails.