No, fibre optic cables do not have high resistance. In fact, they are designed specifically to minimize resistance and allow for efficient transmission of data through light signals. Some common jacket materials are LSZH, polyvinyl chloride, polyethylene, polyurethane, polybutylene terephthalate, and polyamide. What This Means for You: With the right cable construction (like those offered by FSI, which can include custom jackets and. Fragility: Glass fibers have low impact resistance—microscopic cracks cause failure. Bend Limits: Minimum bend radius = 20x cable diameter (e. Cable Assembly Protective layers transform fragile fibers into robust cables: Buffer Tubes: Gel-filled sleeves absorb stress. which obviously travel at the speed of light. This is important for CWDM systems that use wavelengths at or near 1383nm.