As part of Anritsu's CMA5000a Multilayer Test Platform, the OTDR application reduces the time to install, commission, and maintain fiber spans via high performance hardware and easy-to-use software. They characterise the len th, attenuation and return loss (ov se individual events along ink: connection points (splices, connectors), te ng by particles much smaller than the wavelength of the. MORGAN HILL, Calif., March 23, 2026 — The Multi Channel Fiber Tester MT9100A from Anritsu is a multichannel optical time domain reflectometer tester that measures the transmission and return losses in multicore fibers, as well as measures and visualizes the distribution of signal interference. The updated MT9085 ACCESS Master series of professional optical time domain reflectometers from the Japanese company Anritsu has replaced the previously produced series MT9083x2. Compared with the previous line of reflectometers, the new Anritsu MT9085 series received a high-resolution touch. This paper describes fundamental knowledge about an optical time domain reflectometer (OTDR), such as operation mechanism, various technical specifications, how to use an OTDR, and notices in an OTDR use case. Main Contents: Complete the form to receive your download link by email.