Get FiberLert. https://www.flukenetworks.com/FiberLert
Which side is live? Stop guessing. Determine the polarity of duplex fiber connections instantly with FiberLert. Just place in front of the fiber end face or port and a light and tone indicate an active fiber.
Watch video Testing Fiber Polarity with the FiberLert™ Live Fiber Detector by Fluke Networks online without registration, duration hours minute second in high quality. This video was added by user FlukeNetworksVideo 15 December 2021, don't forget to share it with your friends and acquaintances, it has been viewed on our site 17,552 once and liked it 77 people.