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Quality part 2
| Fiber core fractures and the presence of contamination on ferrules, alignment sleeves or dust caps cause wide variations in both insertion loss and return loss performance. |
| Surface defects and cleanliness are critical, but will not always be detected with IL or end face geometry testing. A smooth but fractured fiber will not necessarily fail end face geometry checks for radius of curvature, apex offset and fiber height. |
| End face inspection examples: Contamination (1), Debris (2), Liquid Residue (3) and Adhesive Region Failure (4). |
| Mechanical reliability parameters include Flex, Torsion and Pull Testing, Cable Retention, Impact Testing, Vibration Testing, Durability and Transmission with an Applied Load. |
| These mechanical tests verify that a fiber jumper can endure the installation and maintenance performed in a typical fiber optic network, and that they can dependably withstand the internal stresses imposed by spring loaded physical contact over time under in a variety of environmental conditions. |
| Figure 5 shows fiber break after 50N axial pull for 60s. Figure 6 shows connector deformation after 20N for 60s at 90º pull. |
| Premium OM4 pig tail, LCUPC connector, 2 m |
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| Premium G657A pig tail, LCAPC connector, 2 m |
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| Premium G657A pig tail, SCUPC connector, 2 m |
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| Premium G657A pig tail, E2000APC connector, 2 m |
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