Ftth Box on your general knowledge

  • If you're seriously considering a DIY standing-seam roof installation, you'd best Ftth Box on your general knowledge regarding what is undoubtedly a great roofing solution. While successful amateur installations are not unheard of, your surest bet is to seek the help of a professional.

    Standing-seam roofs are made of numerous interlocking panels, which run vertically from the ridge, or edge, of the roof to its apex at the eave.

    To perform this task, two types of fiber testers are available: a fiber optic continuity tester or a laser visual fault locater.

    Differences between a fiber continuity tester and a laser visual fault locator

    The most important difference is their light source. A fiber continuity tester typically uses a red or green color high intensity LED while a laser visual fault locator uses red color semiconductor laser.

    Visible lasers produce a more powerful light and can provide more information to the technician than a LED light. By coupling the fiber link to a visible laser, problems with connectors, breaks in the fiber near connectors or splices, and some bend radius violations can be located.

    On the other hand, LED powered fiber continuity tester can only verify that light can travel through the Fiber Distribution Terminal and no more information is obtained. Fiber continuity tester simply yields a "no go" result. If the light isn't visible at the other end of the fiber link, then the fiber is unusable in its present state and requires further testing and repair.