![]() Defective items will be repaired or replaced at FirstFiber's option. Any part which is determined by FirstFiber to be defective in material or workmanship shall be returned to FirstFiber or authorized service location, as FirstFiber designates and shipping costs prepaid. Having a low insertion loss, low back reflection and high precision alignment.įiber optic loopback modules incorprate two fiber optic connectors and they are plugged into the output and input port of the equipment respectively so that a signal can be sent from a communication device and looped back to the device as a way to troubleshoot a defective node in the network.įiber optic loopback test is the most convenient way for transceiver maintenanceįirstFiber warrants to the purchaser that our products shall be free from defects in material and workmanship under normal use (consumables, normal tear and wear excluded) for a period of one year from the date of shipment. Sending a loopback test to network equipment, one at a time, is a technique for isolating a problem.įiber Loopback Module is abosolutely an economical solution for a number of fiber optic test applications.Įquipped with a SC Loopback cable inside, it supports the test of transceivers featuring SC interface.Įquipped with a black enclosure to protect the optical cable, and the looped space is reduced for an easier usage and economic package.Įvery Loopback Module is equipped with two small dust caps, which is convenient to protect it from pollution.Ĭomplying with the RJ-45 style interface. Typically it is used for fiber optic testing applications or network restorations.For the testing applications, the loopback signal is used for diagnosing a problem. In addition, to separate by fiber types, single-mode loopback (9/125) and multimode loopback (50/125, 62.5/125) are deployed for the application.Fiber Loopback Module is designed to provide a media of return patch for a fiber optic signal. Now it is the most popular loopback with low cost but high performance. Its connector is compliant to IEC, TIA/EIA, NTT and JIS specifications. Another frequently used type is SC fiber optic loopback. Having a low insertion loss, low back reflection and high precision alignment, LC fiber optic loopback is widely used all over the world. LC fiber optic loopback complies with the RJ-45 style interface. Categorized by connectors, fiber optic loopback has SC, LC, MTRJ, E2000 types, etc. You may find that loopback also has different types of optical connectors and fibers. And the looped space is reduced for an easier usage and economic package. As for fiber optic loopback module, the biggest difference is that it has a enclosure to protect the inside cable. ![]() When sticking the connectors together, the cable will shape like a loop. It is equipped with two fiber optic connectors on each end of the cable. Fiber optic loopback cable is the traditional fiber optic loopback with a visible cable. Generally, fiber optic loopback cable and fiber optic loopback module are both fiber optic loopbacks. ![]() So, what is exactly the fiber optic loopback? By diagnosing the problems of optical equipment, fiber optic loopback provides an easy way to test the performance of the optical network devices.
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