Testing with a professional multi-function OTDR-1500 Written by Electronic Specifier
Figure 1: The Jonard Tools OTDR-1500 Image source: Jonard Tools
This professional-grade OTDR offers several key advantages, particularly in environments where precision, reliability, and efficiency are essential. It is a strong choice for those requiring accurate diagnostics and dependable performance in demanding fiber network applications.
This article focuses on the advantages of using a professional- grade optical time domain reflectometer (OTDR) over lower- cost alternatives. For critical or large-scale fiber installations, the initial investment is often offset by reduced downtime, fewer repeat site visits, and increased customer confidence. Jonard Tools ’ Professional Multi- Function OTDR-1500 (Figure 1) is a handheld, all-in-one device designed for evaluating ‘Fiber to the X’ (FTTx) and access network construction and maintenance. It supports key tasks such as identifying fiber breakpoints, measuring cable length, and calculating relative optical power losses. The OTDR-1500 offers improved accuracy in dynamic range, event detection, and attenuation readings – helping engineers diagnose issues in fiber networks with greater confidence.
occur at fixed connectors or fractured fiber ends and appear as peaks in the data. Non-reflective events include descending event points, ascending event points, and non-reflective fiber ends. During data analysis, three types of threshold settings are used: loss analysis threshold, loss passing threshold (which includes joint loss and reflection loss thresholds), and fiber terminal threshold. For example, if the calculated connection loss at an event point exceeds the loss analysis threshold, the event is marked with an asterisk (*); otherwise, it is automatically ignored. Similarly, when the connection loss exceeds the fiber terminal threshold, the event point
is identified as the fiber terminal.
Selecting the high-resolution test option increases the maximum number of sampling points to 256k, improving the instrument’s ability to resolve events occurring within a short distance. Reliable fault detection The OTDR-1500 can detect subtle faults that lower-cost units might miss, including microbends, macrobends, dirty or damaged connectors, and minor loss or reflectance issues such as poor splices or breaks. When using the device, it is essential to keep both the
Higher accuracy and resolution
The OTDR-1500 features a large dynamic range of 32/30dB and supports 256k data sampling points, making it well-suited
for long-distance multi- branch communication
network testing. It enables more accurate detection of closely spaced events such as splices, connectors, or breaks in the fiber, with a minimum sampling resolution of 2.5 cm.
Reflective event points typically
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