total security solutions fiberglass installation video

TOTAL SECURITY SOLUTIONS FIBERGLASS INSTALLATION VIDEO PORTABLE

The amount of light reflected is determined by the differences in the index of refraction of two fibers joined through splicing, impurities in the glass fiber, and material changes within a connector or along the fiber run. Refraction is the bending of light waves as they pass from one transparent material type to another. Understanding the science behind OTDR begins with a few basic concepts that are important to the OTDR testing process. In much the same way, the reflected or scattered light waves from the OTDR allow the overall condition of the fiber core to be “seen”. In medical imaging applications, high frequency (≥20KHz) inaudible sound waves are produced by the vibrating elements of an ultrasound transducer and reflected back to the source to create accurate images of bodily features.

Another useful analogy can be found with Ultrasound technology. There are obvious comparisons between OTDR and the copper wire signal testing it has gradually replaced, as the communication networks have shifted to fiber optics. Despite advanced technology that now allows many OTDR test systems to automatically determine the best settings for your test process, it is still important to understand what the underlying settings are and how they may impact your results OTDR Testing Analogy Many modern OTDR tools automatically select the optimal acquisition parameters for a particular fiber by sending out test pulses in a process known as auto-configuration, auto setup, or auto test. The insertion loss is calculated from the proportional amplitude change of the backscattered light. The location of each event and the overall cable length are calculated based on the round-trip time of the light pulse traveling through the fiber core.

A photodiode measures the returning light energy or optical power (reflected and scattered back) over time and converts it into an electrical value that is sampled, amplified, and graphically displayed on a screen. The OTDR sends a pulse of light energy (optical power), generated by a laser diode, into one end of an optical fiber. Multiple-pulse acquisition OTDR techniques have also been developed to test more complicated configurations, including PON networks and fiber to the home (FTTH) deployments.Ĭontact sales to learn more about VIAVI OTDR Testing Equipment today, or use the OTDR selector tool to find the recommended tool and request an OTDR price quote. These three techniques form a powerful combination for managing fiber cabling networks or utilizing the fiber for Distributed Fiber Optic Sensing.Īlthough originally intended for long haul fiber optic applications, newer generation OTDR tools can also be used to diagnose much shorter cables, such as internal aircraft and enterprise facility cabling such as structured cabling.

TOTAL SECURITY SOLUTIONS FIBERGLASS INSTALLATION VIDEO PORTABLE

An OTDR instrument can be portable or rack-mounted for permanent placement and monitoring of a network with alarms triggered automatically if the fiber is compromised.Īlong with the Rayleigh scattering method used to characterize fiber links, Raman and Brillouin OTDR technologies can also be used to predict breaks, monitor fiber health, and prevent service outages through temperature and strain measurements.

Total security solutions fiberglass installation video