L-com offers 62.5/125, 50/125 Multi-mode as well as 9/125 Single mode fiber optic loopback cables for use in many applications include test environments. Our fiber optic loopbacks are individually tested before shipping ensuring the highest quality. Some of the connectors for the fiber loopbacks include MTRJ and MPO. These Fiber optic loopbacks are devices that are used to test the functionality of fiber optic equipment. The fiber loopbacks work by creating a loop between the transmit and receive ports of the equipment, which allows the signal to be sent back to the source. This allows for the testing of the transmitter, receiver, and all of the components in between.

Our fiber optic loopbacks are used in a variety of test environments, including testing the functionality of network equipment, such as switches, routers, and patch panels, testing the performance of optical components, such as lasers, amplifiers, and filters, testing the integrity of fiber optic cables and troubleshooting problems with fiber optic equipment. Order your fiber optic loopbacks now to receive same business day shipping!