Scroll Mandrel must be used for field testing of Multimode Optical Cables according to U. S. TIA/EIA-568B standards ). It can be used to verify whether the 62.5 m and 50 m Multimode Optical Cables support Gigabit or even 10-Gigabit Ethernet networks by using a common LED light source with a wide scattering area.
High-level and low-level models
Multi-mode optical fiber cables contain multiple optical paths at the same time. Some of these paths are in the "low-level" mode in the center of the optical cable), while others are in the "high-level" mode at the edge of the optical fiber transmission ).
Due to the radian variation and manufacturing characteristics of the Optical Cable Link, the "High Level" mode may cause low repeatability of test results due to attenuation. Relatively speaking, the light in the "low-level" mode is generally stable. During testing, you need to use a light source that can emit "low-level" light, which will make the test results more accurate and repetitive. You can achieve this in two ways:
Use a light source that only emits low-level light, such as a VSCEL laser.
Use a common light source to emit "High Level" and "Low Level" modes), and add a peripherals that can delete "high level" light.
Device.
Launch scroll
The principle of transmitting a scroll is to consume the light in the "high level" mode through multiple large radians. The following figure shows how to use peripheral adjustment devices, such as the "launch scroll" to enable a common light source to emit "High Level" and "Low Level" modes) it can simulate the characteristics that VCSEL light sources only emit low-level light.
Optical Cable test series and transmission reels for fluke Networks
Fluke network provides a variety of Optical Cable testing tools. The most popular DSP-4000 series cable-certified analyzers, in addition to multimode and single-mode optical cable test adapters, as well as optical cable test adapters with VSCEL light sources, you can directly verify whether the optical fiber meets the requirements of Gigabit Ethernet.
If you need a tool designed for optical fiber certification testing, you can select CertiFiber, the world's first certified Optical Fiber tester. CertiFiber can test the length of two multimode optical fiber cables at the same time, and can perform the attenuation verification test on 850nm and 1300nm automatically. The test results can be stored in the machine and uploaded to the computer for analysis and management through Linkware. With the launch scroll, you can also authenticate to Gigabit Ethernet.
If you only need light attenuation impairment, you can choose economical SimpliFiber. The SimpliFiber optical table can automatically identify the wavelength emitted by the light source, such as 850nm or 1300nm. During testing, misjudgment will not be caused by setup errors, delaying the engineering or diagnosis efficiency. 100 test results can be stored.
Fluke network for the above tester to provide two meeting the requirements of the TIA-568B to support the industry's most commonly used 3mm optical fiber transmission Reel: For 50 m optical fiber is 22mm of the launch reel, for a 62.5 m optical cable, it is a 17-mm transmitting scroll. When a scroll is used for launching a video, it must start on time until the test is completed.
Calibration test equipment
Test optical link Attenuation
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