Description:

Fiber Optic Loopbacks is designed to provide a media of return patch for a fiber optic signal; typically it is used for fiber testing applications or network restorations. For the testing applications, the loopback signal is used for diagnosing a problem. Sending a loopback test to network equipment, one at a time, is a technique for isolating a problem.

Similar as patch cords, fiber optic loopbacks can be with various jacket types and cable diameters, and they can be with different terminations and length.

The common fiber optic loopbacks types are: SC fiber optic loopbacks, FC fiber optic loopbacks, LC fiber optic loopbacks, MT-RJ fiber optic loopbacks.

Parameters:

• Insertion Loss ≤ 0.1dB

• Return Loss ≥ 50dB (PC)

• Return Loss ≥ 60dB (APC)

• Mating Durability(500 cycles): ≤0.2dB

• Working Temperature: -40℃～+85℃

• SM(blue), MM(beige), APC(green)

• Simplex

• Boot size: 0.9mm, 2.0mm, 3.0mm

Applications:

• Gigabit Ethernet, Video, Multimedia

• CATV, LANs, WANs

• Premise installations, Metro

• Data processing networks

• Industrial, medical & military

• Test equipments and telecommunication networks

Image of MPO single mode loopback:

MPO Loopback