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These AFI400 Fibre optic cables identifier is idea to indentify excessive problem fibers (excessive loss, dark, live fiber) that may be caused by misalignment of mechanical splices or poor connections. This optimized device can indentifies multiple signal frequencies including 270HZ, 1Khz and 2Khz and used for testing H0.25, 0.25mm, 0.9mm, 3.0mm fiber.Fibre optic cables  transceivers  It operates at a wavelength range of 800nm to 1700nm and works. Powered by 2 units of 1.5V AA alkaline batteries, it can work at least ten hours on a full charge. Besides, the fiber chuck , with mechanical damping design, can ensure that no fiber damages occurred. Meantime, it has both sound and light alarm function and key lock function, making it easier and more comfortable to operate. instability in the laser system, and a misalignment between the fiber cores, which may as a result disrupt the light transmission between the fiber optical system.For proper performance of the SC Fibre optic cables, you must keep the OPTICS PRODUCTS connector clean and free of dust. Small micro-deposit of oil and dust in the canal of the connector could cause loss of light, reducing signal power and possible causing intermittent problems with the optical connections. Below picture show the part of the end face of an unclean and clean ferrule of SC connectors.